Magenta Systems Operator Address List (full)

Version 233 - 31st October 2017
Database Updated: 15th November 2017
Not for commercial publication or use.

 

 

Company Name Address Telephone External Link
(aq) Ltd 13-15 Hunslet Road, Leeds LS10 1JQ  0113 320 3040 https://aql.com/ 
001 Ltd 4 Cedar Court Parkway Porters Wood St Albans, Hertfordshire, AL6 3PA  0845 389 2001  
001 International Telecom    
01 Telecom Ltd The Old Factory, 31-32 Devonshire Place, Brighton BN2 1QB  020 7186 0101 https://01t.co.uk/ 
03 Numbers For Free 54 Langham Road, Blackburn BB1 8BH  033 0606 0023 http://www.03numbersforfree.co.uk/ 
08 UK Ltd Gibsons Court 5 Gibsons Road, Stockport, SK4 3HR  08444 939 444  
0800 Numbers Ltd Arun House, Hurst Road, Horsham, West Sussex RH12 2DN   
0844 Calls   http://www.0844calls.co.uk/ 
08Direct Ltd Mazhar House, 48 Bradford Road, Stanningley, Leeds LS28 6DF  0844 504 4000 http://www.08direct.co.uk/ 
08numbers.com 23 New Mount Street, Manchester M4 4DE  0800 950 0800 http://www.08numbers.com/ 
09 Mobile    
0Bit    
1 Office Equipment Ltd Unit 10-11 Riverside Court Mayo Avenue, Dundee, DD2 1XD  01382 644362  
1 Red Cube Ltd Suite 55 33 Queen Street Wolverhampton West Midlands, WV1 3AP  01902 583 990  
1 Touch Telecoms Ltd Office 11 Hyde Park Business Centre, Glasgow, G21 4SF  0141 550 4747  
100 Percent IT Ltd Wessex House Oxford Road Newbury Berkshire, RG14 1PA  01635 814440  
101 Computers 6 Halvergate Road, Reedham, NR13 3HN  07747037235  
101 Data Solutions Ltd Somer Valley Enterprise Park, Paulton House Old Mills Paulton, BS39 7SX  01761 568141  
10ACT Ltd 8 Waldegrave Road, Teddington, Middx TW11 8HT  020 3131 3111 https://trackback.net/ 
10thCloud Ltd James Taylor House St-Albans Road East, Hatfield, AL10 0HE  0208 0901300  
110 Telecoms Ltd 4 St Meryl Suite, Watford, WD19 5BE  08447701101  
118 Ltd Sterling House, Malthouse Avenue, Cardiff Gate Business Park, Cardiff CF23 8RA  029 2055 0000 http://www.conduitglobal.com/ 
118250 - Best Number Ltd 30 Meiros Way, Ashington, Pulborough RH20 3QB  0872 66 80 25 http://118250.co.uk/ 
121 Communictions 4 Firmin Aveune Boughton Monchelsea, Maidstone, ME17 4NN  01622 474730  
121 IT Services Ltd Unit 6 Westbrook Court 2 Sharrow Vale Road, Sheffield, s11 8yz  01142685121  
123 Telecommunications Ltd 20-22 Wenlock Road, London, N1 7GU  03303350123  
123Telecom Ltd 25 BSC Centre, Innovation Quarter, Hood Road, Barry CF62 5QN  030 3030 0123 http://123telecom.co.uk/ 
127 Solutions Ltd The Heath Business & Technical Park Runcorn, Cheshire, WA7 4QX  0845 8621 127  
18185.co.uk   http://www.18185.co.uk/ 
1823 Group Ltd 4a Church Court, Richmond, TW9 1JL  +44 (0)20 3691 5551  
186k Ltd 195 North Street, Leeds LS7 2AA  0870 122 2186 http://www.186k.co.uk/ 
1899.com   http://www.1899.com/ 
1AffordableCall Ltd Woodley Business Centre 166 Nightingale Road Reading Berks, RG5 3LZ  01189 014403 http://www.1affordablecall.co.uk/ 
1-Fix Ltd Unit 14 Falcon Business Park Ivanhoe Road Hogwood Lane Industrial Estate Finchampstead, RG40 4QQ  01189260084  
1st Advance Ltd    
1st Byte IT Solutions Ltd 5 Clifton Moor Business Village James Nicholson Link, York, YO30 4XG  01904 890690  
1st Call Communications Ltd Station House 6a Station Road Eckington Sheffield South Yorkshire S21 4FX  01246 439 800 http://www.1call.co.uk/ 
1st Callcom Ltd 01246 439800 Ravenshorn Way Renishaw, S21 3WY  http://www.1call.co.uk/ 
1st Communications Ltd 15 Bowling Green Lane, London, EC1R 0BD  020 7553 4488  
1st Connect Group Ltd 55 Cobham Road Ferndown, Dorset, BH21 7RB  01202 850 000  
2 Advanced IT Ltd Unit 4 145 Great Ancoats Street, Manchester, M4 6DH  01613936204  
2 Circles Communications Ltd Ver House 23-25 High Street Redbourn Herts, AL3 7LE  0845 6200 200 http://www.2circles.com/ 
20 Telecom Ltd 101 Finsbury Pavement Moorgate, London, EC2A 1RS  0333 45678 20  
21 Plus Telecom Ltd Evans Business Centre Manchester Road, Bolton, BL3 2PY  01204 368 636 http://www.21plustelecom.co.uk/ 
21st Century LAN Ltd 7 The Drive, Southwick, BN42 4RR  01273 270996  
21st Century Network Solutions Ltd Hoghton St, Southport, PR9 0NS  01704540547  
21st CENTURY SOLUTIONS LTD 263 Burnt Oak Broadway EDGEWARE, LONDON, HA8 5ED  0800 4334423  
24 Seven Communications Ltd Telecoms House, 4 Sheepscar Court, Leeds LS7 2BB  0800 024 7247 https://24seven.co.uk/ 
24/7 Business Support Ltd Planet House Northumbrian Way Killingworth Newcastle upon Tyne, NE12 6EH  01912303247  
25sevenit Ltd 1 Stephen Street, London, W1T 1AL  02074948620  
2Abroad Ltd 138 Wayside Green, Woodcote, Reading RG8 0QJ  http://www.2abroad.com/ 
2Communications    
2Ergo    
2fourseven The Trees Sulhamstead Road,, RG7 4EE  08456385224  
2LOGIC Ltd Four Ashes House Four Ashes Business Park Station Road Wolverhampton, WV10 7DB  03302232340  
2MITC 30 Kintullagh Court, Ballymena, BT43 5JG  07917886772  
2-Sell-It    
3 Technology Ltd 124 Anlaby Road, Kingston upon Hull, HU3 2JH  01482240005  
360 Solutions (UK) Ltd 360 House 1 Faraday Court Centrum 100 Burton on Trent, Staffs, DE14 2WX  0845 223 6360  
360coms Ltd 1 Cabot House Stocks Bridge Way Compass Point Business Park St Ives, PE27 5JL  01480 468000 http://www.360coms.co.uk/ 
360CRM Ltd 80 St Vincent Street, Glasgow G2 5UB  0141 433 0500 http://www.360crm.co.uk/ 
365 Itms Ltd Napolean House Riseley Business Park Riseley Reading, RG7 1NW  01189885558  
365ICT Ltd 6 Tadworth Parade Hornchurch, Essex, RM12 5AS  013750275001  
3aIT 51 Bishopric Horsham, West Sussex, RH12 1QJ  020 3384 3932  
3C Ltd Apt 1403, Chynoweth House, Tremissome Park, Truro TR4 8UN  http://www.3c.co.uk/ 
3C Technology Ltd Network House Hawkins Road, Colchester, CO2 8LA  01206 790 060  
3D Komputers 1 Broom Place Portree, Isle of Skye, IV51 9HL  01478 613 576  
3D Telecom Broseley House, 81 Union Street, Oldham OL1 1P  0161 622 1845 http://3dtelecom.co.uk/ 
3dsl ltd 11 new road, chippenham, sn15 1hj  01246 460766  
3it Ltd 2 Forbes Business Centre Kempson Way Bury St Edmunds Suffolk, IP32 7AR  08456 424333  
3Net Office Solutions Ltd 3 Chuaucer Street, BOLTON, BL1 3HR  08445860786  
3R Telecom Ltd 28 Lindsey Street Epping, Essex, CM16 6RD  01992 564644 / 07958 562413  
3TEC Ltd Home Farm Office Wrotham Business Park Barnet Hertfordshire, EN5 4SB  020 8275 1120  
4 Business Calls Ltd 282 Heywood Old Road Middleton, Manchester, M24 4QG  0807 300 4299  
4 Oceans Telecom Ltd 6 Lilies High Street Weedon Bucks, HP22 4NS  020 3397 0491  
42 Com Telecommunication Gmbh Friedrichstrabe 231, D-10969 Berlin  +49 (0)30-340 605 907  
447 Services Ltd 37 High St, Huntingdon, PE29 3AQ  01480 455156  
46RMM Ltd 2 Axon Commerce Road Lynch Wood Peterborough, PE2 6LR  01733 860229  
4Com PLC Loewy House, 11 Enterprise Way, Aviation Park West, Christchurch, Dorset BH23 6EW  0844 375 0000 http://www.4com.co.uk/ 
4D Data Centres Ltd Sirius 2 122 Oyster Lane, Byfleet, KT14 7JU  02071830602  
4D Interactive Ltd Orega Business Centre, 1 Hardwicks Square, London SW18 4AW  020 7966 0115 http://www.4dinteractive.co.uk/ 
4G Mobiles and Data Ltd Suite 38, Europa House Barcroft Street Bury Manchester, BL9 5BT  0161 764 5240  
4G Voice and Data Ltd Suite 8, Penistone 1 Regent Court St Mary's Street Penistone, S36 6DT  01977529555  
4Net Technologies Ltd Maclaren House Talbot Road, Manchester, M32 0FP  0845 055 6366  
4s Systems Ltd Shepperton Studios Studios Road Shepperton Middlesex, TW17 0QD  01932572345  
4Sight Communications Ltd 4 Ingate Place, London, SW8 3NS  020 3668 0444  
4Sight UK    
4site It Solutions Ltd THE FIRS GREENFIELDS LANE ROWTON CHESTER, CH36AU  08442499886  
4tel Communications 1st Floor, Carrick Business Centre, Commercial Road, Penryn, Cornwall TR10 8AR  0870 750 6300 http://www.4telgroup.com/ 
4ward Communications Unit G35 Hastingwood Trading Estate Harbet Road LONDON, N18 3HT  08700 411 005 http://www.4ward-communications.co.uk/ 
4way Support Services LTD 21 Station Close, Potters Bar, EN6 1TL  01707 648 580  
5 Rings Telecom Ltd Unit 14, Triangle Business Park 95 Commerce Way Lancing Business Park West Sussex, BN15 8UP  0844 575 0550 http://www.5ringstelecom.co.uk/ 
500 Ltd Unit 500 17 Holywell Hill St Albans Hertfordshire, AL1 1DT  0845 0000 500 http://www.500.uk.com/ 
5050partnership 32 Finsbury Park Widnes, Cheshire, WA8 9WN  07885746249  
52Degrees Telecom Ltd 71-75 Shelton Street Covent Garden, London, WC2H 9JQ  0207-965-7352  
5C Services Ltd 10d Broad Street The Courtyard Buith Wells Powys, LD2 3DT  01982 552 239  
5G Communications Ltd Phoenix House Desborough Park Road High Wycombe Buckinghamshire, HP12 3BQ  01494 833 833 http://www.5gcomms.com/ 
5iB Ltd 1 Church Street, Stourbridge, DY8 1LT  0333 577 1555  
5miles Communications Ltd 67 London Road Bognor Regis, West Sussex, PO21 1DF  08452 249 041  
5Tel Ltd 69 Wansford Road, Woodford Green, IG8 7AD  02084828017  
JW and M Clarke 6 Communications Ltd 2nd Floor 145-157 St John Street London EC1V 4PY  08456 525603  
6G Internet Ltd Lockside Office Park Lockside Road Riversway Preston, PR2 2YS  01282777711  
7 Telecommunications Ltd Suite 15732 145-147 St John Street, London, EC1V 4PW  0845 894 9773  
802 Works Ltd Atrium Business Centre North Caldeen Road, Coatbridge, ML5 4EF  0845 278 8800  
8020 Ltd 38 George Street, Dumfries, DG1 1EH  01387 250008  
8086 It Solutions Ltd Foxhall Lodge Foxhall Road, Nottingham, NG7 6LH  08704018086  
81G Ltd 2 Venture Road Southampton Science Park Southampton Hampshire, SO16 7NP  0845 3030819  
848 I.T Services Ltd 41a Eastgate Street, Stafford, ST16 2LY  07868 848 848  
9 Group Ltd Unit 900 The Hub Sperry Way Stonehouse Business Park Stonehouse, Gl10 3UT  08000685939  
9 Iron Telecom Ltd Regent House, Bath Avenue, Wolverhampton, WV14EG  01902546610  
999 Network Services PO Box 9019 Sudbury, Suffolk, CO10 0BX  0345 004 3579  
A & A Technology Delta House 4 The Village Keele Newcastle Under Lyme, ST5 5AR  01782 620330  
A & C Computers Ltd 7 Progression Centre Mark Road, Hemel Hempstead, HP2 7DW  01442620063  
A & K Communications Ltd 408 Little Wakering Road Barling Magna Southend on Sea Essex, SS3 0LP  01702 218620  
A P Systems (NW) Ltd Systems House 6 Millbank Road Rhyl Denbighshire, LL184NY  01745 353501  
A P Systems (Scotland) Ltd 16 GRANT STREET CULLEN Cullen BUCKIE, AB56 4RS  01542841121  
A&f Media Ltd 30 Netherby gardens, Oakwood Enfield London, En2 7pb  07970191824  
A&M Systems Ltd 54 Wargrove Drive College Town Sandhurst Berkshire, GU47 0DU  01344 750 884  
A.K.Robinson Ltd Caxton Point, Caxton Way, Stevenage, SG1 2XU  01438 535322  
A1Comms Ltd Contract House Turnpike Business Park, Alfreton, DE55 7AD  01773522300  
A1IT Solutions Ltd Network House Southbourne Business Park, Eastbourne, BN22 8UY  01323 400 300  
A2B Telecom Ltd 1 Emperor Way, Exeter Business Park, Exeter, EX1 3QS  0845 652 1333 http://www.a2btelecom.com/ 
A2Z Computing Ltd The Old Chapel Hereford Street, Newport, NP19 8DT  01633 676543  
A2z Technologies Ltd 1 Blackhorse Lane, Bristol, BS16 6TR  07771700337  
A4 IT Solutions Ltd 54A Chuch Road Ashford, Middlesex, TW15 2TS  07785738222 / 07808707404  
A41 IT Services Ltd PO Box 1136, St Albans, AL1 9UJ  01727515980  
A8C Ltd KEMP HOUSE, 160 CITY ROAD, London, EC1V 2NX  02037737869  
AAC Services Ltd Manton Lane Bedford, Beds, MK41 7TL  01234 227 788  
Aardvark Installation Services 2 Bell Lane Lanner Redruth Cornwall, TR16 6AP  01209 214 287  
Aardvark IT Flat 2 10 Saffrons Road, Eastbourne, BN21 1DU  0870 224 0166  
Aastha Ltd 353A York House, Harrow, HA1 1LN  02037510000  
AAV Systems Ltd 15 Doveridge Road Brizlincote, BURTON-ON-TRENT, DE15 9GB  01283 80 81 82  
AB Internet Ltd 62 Sewell Road Lincoln, Lincolnshire, LN2 5QX  01522 821 111 http://www.abinternet.co.uk/ 
Abacus Communications 45 Beetham Road Milnthorpe, Cumbria, LA7 7QN  01539 898048  
Abacus Systems Ltd Cartbridge House Broadmead Road Send Woking, GU23 7AD  01483 740047  
Abbey Telecom Ltd Logic House Ordnance Street Blackburn Lancashire, BB1 3AE  01254 272000 http://www.abbeytelecom.co.uk/ 
Abbeycomp IT Solutions Ltd 86 Gloucester Place, London, W1U 6HP  0207 487 4817  
ABC Business Communication Systems Ltd Rose house 4 Preston Street, Faversham, ME13 8NS  03333234007  
ABC Networking Ltd 15 Barnack Business Centre Blakey Road, Salisbury, SP1 2LP  01722 411999  
Abc Service Flat 1, 2 West Street Tavistock, Devon, PL19 8AD  01822613154  
Abel & Co (Scotland)    
Aberconwy Phone Services   http://www.pacetelecom.co.uk/ 
ABI Business Services Ltd - 228 Widdrington Road, Coventry, CV1 4PB  024 7601 1433  
Abica Ltd 72 Elderslie Street, Glasgow, G3 7AL  0845 373 3622  
ABM Computer Solutions Ltd Unit 8-9 Temple Bar Business Park Strettington, Chichester, PO18 0TU  01243773113  
About IT Ltd Unit S14 Allen House The Maltings Sawbridgeworth Herts, CM21 9BN  01279 461 910  
ABS Computer Systems Ltd James House 40 Lagland Street, Poole, BH15 1QG  01202 770900  
Absolute Numbers Ltd Forum House Stirling Road Chichester West Sussex, PO19 7DN  08454 501910  
Absolute Technology UK LTD Enterprise House Ocean Way, Southampton, SO14 3XB  023 8057 4741  
ABtec Computer Solutions LTD Unit 8 Armstrong Point Swan Lane, Wigan, WN2 4AU  01942 209060  
Abtec Network Systems Ltd Barents House Compass Point Market Harborough Leicestershire, LE16 9HW  01858 438 510 http://www.abtecnet.com/ 
Abussi Ltd 1 Victoria Square, Birmingham, B1 1BD  +448458620200  
Abycom International Ltd 7 Long Road Canvey Island, Essex, SS8 0JA  01268 660600  
Abzorb Systems Ltd Armytage Road, Brighouse, HD6 1QF  01484 405 300  
Academia Ltd 8 Kinetic Crescent Innova Park, Enfield, EN3 7XH  01992703900  
Accent Telecom UK Ltd PO Box 328 Witney,, OX28, 1ZR  0870 950 1630  
Accent Voice & Data Ltd 180 Markfield Road, Leicester, LE60FS  01530244933  
Accentiva Ltd 145-157 St John Street, London, EC1V 4PY  020 8916 9292  
Accentuate Comms Ltd Rickleton 2c Bowes Business Park Chester-le-Street County Durham, DH3 4AN  0191 4489444  
Access Denied Worldwide Ltd 8 Morley Court River Lane, Fetcham, KT22 9RZ  03330112658  
Access Telecommunications Retail Ltd    
Accesspoint Technologies Ltd Unit 7 Ashton Gate Ashton Road, Romford, RM3 8UF  0203 189 2645  
Accounts Centre    
Accounts Computers Ltd 11 London Road, Sevenoaks, TN13 1AH  01732466666  
Ace IT Services LTD 5 Anderton Street, Morecambe, LA4 5DA  01524 411666  
Acerola 2 Claremont Villas Old Bristol Road, Nailsworth, GL6 0LH  01453 834430  
ACL Telco Ltd Communication Centre 10 Penllyn Works Plassey Street Bala, Gwynedd, LL23 7SW  0800 004 8687  
ACM Energy Consultants Ltd 204 Brooklands Road, Sale Cheshire, M33 3PH  07599 072251  
ACN   http://acneuro.co.uk/ 
ACN Business   http://acneuro.co.uk/ 
ACN European Services Ltd Tower 42, 25th Floor, 25 Old Broad Street, London EC2N 1HQ  020 7949 0102 http://acneuro.co.uk/ 
Acomz Networks Ltd Basepoint Business Centre Bromsgrove Technology Park, Bromsgrove, B60 3ET  01527529922  
Acorn Networks Services Ltd 68 Great Eastern Street, London, EC2A 3JT  020 7643 5900 http://www.acorn.uk.com/ 
ACR Networks Ltd Unit 3 Landscape Close, Weston-on-the-Green, Bicester, Oxon OX25 3SX  01869 342142 http://www.connect2tele.com/ 
Acronyms Ltd Tamar Science Park Derriford Plymouth Devon, PL6 8BX  01752 606553  
Acropolis Online Ltd 29 harley street, LONDON, W1G 9QR  03301240329  
ACS Computer Services Ltd 44-45 Market Place, Chippenham, SN15 3HU  01249 470070  
ACS Solutions Ltd 18a Rolle Street Exmouth, Devon, EX8 1NJ  01395 548 210  
ACS Systems Uk Ltd Oxwich Close Brackmills Ind Est, Northampton, NN4 7BH  01604 704000  
ACT (Comms) Ltd Bronzeoak House Stafford Road Caterham Surrey, CR3 6JG  01883 779 948  
Actimax PLC 1 Yardley Business Park Luckyn Lane Basildon Essex, SS14 3GL  01268 243 903  
Activ Communications    
Activ Telecom   http://www.helloactive.co.uk/ 
Active Business Communications Ltd Active House 11 Bredbury Business Park Bredbury Park Way Bredbury, Stockport, SK6 2SN  0161 355 1717  
Active Comm.Solutions    
ACTIVE Computers (UK) Ltd 1-4, The Granary,, Wem, SY4 5PJ  01939 550040  
Active Digital Communications Actove Digital Communications Ltd Active House Transfesa Road, Paddock Wood, Kent, TN12 6UT  01892 835522  
Active Information Systems Ltd 40 Ann Street, Worthing, BN11 1NX  01903 257070  
Active IT Systems Ltd Unit 1 Main Street Hatfield Woodhouse Doncaster, DN7 6PB  01302 638 981  
Active Office Scotland Ltd 22 Douglas Street, Kilmarnock, KA1 1RB  01563 545977  
Active Voice & Data Ltd Units 7 & 9 Kendray Business Centre Thornton Road Barnsley South Yorkshire, S70 3NA  0800 542 5390  
activereach Ltd Prospect House Business Centre Crendon Street, High wycombe, HP13 6LA  08456259025  
Activtelecom Ltd Hadrian House Balliol Business Park West Cramlington Newcastle Upon Tyne, NE12 8EW  0191 244 9400  
Acton-Tec Services Ltd Rural Enterprise Centre Stafford Drive, Shrewsbury, SY1 3FE  0845 174 0010  
Acturis Ltd 100 Hatton Garden, London, EC1N 8NX  0207 079 4090  
Acuiti Solutions Ltd The Laurels, Trewyn Road, Holsworthy, Devon EX22 6HX  01409 259196  
Acuity Unified Communications Ltd 2nd Floor 2235-2243 Coventry Road, Birmingham, B26 3NW  0333 344 3030 http://acuityuc.com/ 
Acutec Ltd St Peters House Church Hill Coleshill West Midlands, B46 3AL  01675 469020  
Acutel Ltd PO Bov 186, Heathfield, TN21 1AS  0845 612 9880  
Acuutech Ltd 5/6 York House Langston Road Loughton Essex, IG10 3TQ  020 8502 2155  
AD Network Solutions Ltd 10 River Court Brighouse Road Riverside Park Middlesbrough, TS2 1RT  01642 248750  
ADA Networks Ltd 3 Mill Court Mill Lane Newbury Berks, RG14 5RE  01635 523131  
Adam Phones Ltd   http://www.adamphones.com/ 
Adam Telecom Ltd 6 Brook Hey Close, Rochdale, OL129TA  01706550487  
Adaptive Communication Solutions Ltd 72 King Street, Southport, PR8 1LG  0800 634 8889  
Adaptivecomms   http://www.adaptivecomms.co.uk/ 
Add Technology Ltd UNIT 3,200A BURY RD TOTTINGTON, BURY, BL83DX  01204888184  
Addooco IT LTD Dundee House Millennium Way Dunston Road Chesterfield, S41 8ND  01246887887  
ADECS Ltd 6 Coventry Innovation Village, Cheetah Road, Coventry, CV1 2TL  02476995930  
Adept Communications Ltd Link House 140 The Broadway Tolworth Surrey, KT6 7HT  020 8339 8888  
Adept IT Ltd Granville House Granville Road, Maidstone, ME14 2BJ  01622 809590  
Adept Telecom 1st Floor, 27 Mount Ephraim, Tunbridge Wells TN4 8BS  0870 190 9100 http://www.adept-telecom.co.uk/ 
Adept Telecom Business Call Plans   http://www.adept-telecom.co.uk/ 
Adept Telecom Workwise   http://www.adept-telecom.co.uk/ 
Adept4 Ltd Birmingham Science Park Aston Faraday Wharf, Holt Street Birmingham, B7 4BB  0121 250 3828  
Adept4 Managed IT Ltd 7750 Daresbury Business Park Daresbury Office Village Warrington, Cheshire WA4 4BS  0808 252 4444 http://www.adept4plc.co.uk/ 
Adepteo Ltd 24 Market Street, Tottington, Manchester BL8 4AD  0161 710 3000 https://www.adepteo.net/ 
Adeza Systems Ltd Jubilee House Merrion Avenue, Stanmore, HA7 4RY  0203 0044775  
Adharasi Ltd 18 Woodstock Way Mitcham Surrey, CR4 1BA  +442086485642  
ADI Telecom 66 Melchett Road Kings Norton Business Centre Kings Norton Birmingham, B30 3HX  0121 451 2255  
ADK Communications 7a The Maltings Railway Place Hertford Herts, SG13 7JT  0845 345 9212  
ADM Computing Services Ltd 4 Tabley Court Moss Lane, Knutsford WA16 0PL  01565 755200  
ADM Computing Services Ltd Chaucer Road, Canterbury, Ct1 1HH  01227473500  
Admiral Managed Networks Victory House Chobham Street Luton Beds, LU1 3BS  0870 330 7500 http://www.workflow-group.co.uk/ 
Workflow Managed Networks Ltd Victory House Chobham Street Luton Bedfordshire LU1 3BS  0845 270 5071 http://www.admiral-group.com/ 
Admiral Telecom    
Nine Telecom Ltd Victory House Chobham Street Luton Bedfordshire LU1 3BS  01582 557 925  
Adodo Consultancy Services Ltd 26 Cropwell Road Radcliffe-on-Trent, Nottingham, NG12 2FS  0115 970 1471  
Adoltis Ltd Whiteley Mill Nottingham Road Stapleford Nottingham, NG9 8AD  0800 6122 848  
Adrian James The Chambers Market Place Chapel-en-le-Frith High Peak, SK23 0EN  08445042986  
ADSI Technology Ltd Alexander House Christy Court, Basildon, SS15 6TL  01268495566  
ADSL24 Internet Ltd 24 Media House Gatehead Business Park Delph New Road Oldham, OL3 5DE  01457 6000 24  
ADSL4less   http://www.adsl4less.com/ 
ADT Systems Ltd 4 Donald Road, Bristol, BS13 7DG  0117 941 0930 http://www.adtsystems.co.uk/ 
Adtech International (UK) Ltd The Granary Bridge Farm Reading Road, Arborfield, RG2 9HT  01189 763 034  
Adtrak Services Ltd Wayside 1 Hallfields Edwalton Nottingham, NG12 4AA  0800 542 0116  
Advance IT Group Ltd Advance House 9 Waterfall Lane Trading Estate Old Hill Birmingham, B64 6PU  01215012288  
Advance Network Services Ltd    
Advanced 365 Ltd 230 City Rd, London, EC1V 2TT  02078808888  
Advanced Computer Systems (UK) Ltd Unit 6 Hayfield Business Park Doncaster South Yorkshire, DN9 3FL  01302 774 820  
Advanced Computer Technologies Ltd 23 Saltergate Drive, Harrogate, HG3 2YE  01423 858064  
Advanced Data Engineering LTD 22 Baric Close, Salford, M30 0ED  08453883683  
Advanced Data Systems Oaston House Oaston Road Nuneaton Warwickshire, CV11 6JZ  0845 2260 960  
Advanced Health and Care Ltd Advanced Health and Care Limited Munro House Portsmouth Road Cobham, Surrey, KT11 1TF  07825 266668  
Advanced IT Services   http://www.advanceditservices.co.uk/ 
Advanced Media Engineering Ltd Sannerville Chase Exminster Exeter Devon, EX6 8AT  01392 824 022  
Advanced Technology Consultants Ltd 106 Church Lane Marple Stockport Cheshire, SK6 7AR  0161 426 0404  
Advancery Ltd 19 Victoria Mews Cottingley Business Park, Bingley, BD16 1PY  01274 45 22 22  
Advantage Communications (UK) Ltd Eden House Hartlebury Trading Estate Hartlebury Worcestershire, DY10 4JB  01299 252 377  
Advantage Networks (UK) Ltd 4th Floor 45 Conduit Street, London, W1S 2YN  0845 310655  
Advantage Telecom Ltd 164 Kensington High Street, Kensington London W8 7RG  0844 372 3460 http://www.advantagetelecom.co.uk/ 
Advantex Network Solutions Ltd 16B Follingsby Close Gateshead, Tyne and Wear, NE10 8YG  0845 222 0666  
Advoco Solutions Ltd Unit 11, Thatcham Business Village Colthrop Way Thatcham Berkshire, RG19 4LW  08452 608801  
Aecsys Technologies Ltd Unit 5, 1000 North Circular Road, London, NW2 7JP  0870 974 2922  
Aeon Converged Voice And Data Ltd Nelson House Motherwell Way West Thurrock Grays, RM20 3XD  0800 849 8458  
Aerial Direct Ltd Unit B Quay West Business Centre Quay Lane, Gosport, PO12 4LJ  02392603055 http://www.aerial-direct.co.uk/ 
Aerial Telephones Ltd 10-12 Rodney Road, Portsmouth, PO4 8SY  02392 737 513  
Aeriandi Ltd Prama House, Banbury Road, Oxford OX2 7HT  0845 108 0308 https://www.aeriandi.com/ 
Aero Networks Ltd The Axis Building Maingate Team Valley Trading Estate Kingsway North Gateshead, Tyne and Wear, NE11 0NQ  0845 6430 595  
Affinicom Ltd Leeds Farm House Poplar Road Wittersham KENT, TN30 7NT  01797 270 441  
Affiniti Integrated Solutions Ltd 37 Carr Lane, Hul, HU1 3RE  01482 602100 http://www.kcomplc.com/ 
Affinity Communications Ltd 19 Brunswick Road, Altrincham, WA14 1LP  01618706377  
Affinity IT Services Ltd Unit 24 President Buildings Savile Street East, Sheffield, S4 7UQ  01143627000  
Affinity Network Solutions Ltd Wayland House High Street, Watton, IP256AR  01953202003  
Affinity Systems Ltd Sunderland Software Centre Tavistock Place, Sunderland, SR1 1PB  0191 5808858  
AFF-IT Ltd Suite 7.4 Fairways House Offices Mount Pleasant Road Southampton, SO14 0QB  02380000770  
AG Computer Services 30 Equity Road, Earl Shilton, LE9 7FD  01455841674  
Agaara Ltd Flat 2 59 Battersea Bridge Road, London, SW11 3AU  020 7078 9010  
Agape Communications Ltd 142 Craigs Road,,  BT38 9XA  02893 212 020  
Agenda IT Ltd Great Bowden Road, Market Harborough, LE16 7DE  01858450470  
Agila Ltd Geddes House Business Centre Kirkton North, Livingston, EH54 6GU  01506 204832  
Agile Communications Ltd Qnet House Malleable Way, Stockton-On-Tees, TS18 2QX  0871 700 4790 http://www.agile.uk.com/ 
Agile IT Ltd Elsinore House 43 Buckingham Street Aylesbury Bucks, HP20 2NQ  01296 399237  
Agnito UK Ltd 7200 The Quorum Oxford Business Park North Garsington Road Oxford, OX4 2JZ  01865 524 524  
AGT (UK) Ltd Railway Arch 447 Wickwood Street, London, SE5 9DW  020 3745 4303  
Agurtso Holdings Ltd Business First Centre Goodlass Road Garston Liverpool, L24 9HJ  0845 120 5440  
Ahead4 Ltd 117 Hullbridge Road South Woodham Ferrers, Essex, CM3 5LL  01245 426 163  
AI Networks Ltd Unit H-K Gateway 1000 Whittle Way Arlington Way Business Park Stevenage, SG1 2FP  020 7183 1042  
AIC-IT Ltd The Lodge Stadium Way, Harlow, CM19 5FP  01279 306677  
Aindale BMS Ltd 31-33 Chapel Hill Huddersfield, West Yorkshire, HD1 3ED  01484 518899  
Air IT Ltd H3 Ash Tree Court Mellors Way Nottingham Business Park, Nottingham, NG8 6PY  0845 004 5029  
Air Net Services Ltd 62 St Philips Road Keyingham, Hull, HU12 9TD  0800 916 8570  
Air Telecom UK Ltd Air Telecom UK Ltd Avon House 435 Stratford Road Solihull, B90 4AA  08447 703804 http://www.air-telecom.com/ 
Airangel Ltd Unit A The Beacons Birchwood Cheshire, WA3 6GP  0844 974 4006  
Airevalley Solutions Ltd 16 - 18 Devonshire Street, Keighley, BD21 2DG  01535 279135  
Airmart Ltd 32 Shoreditch High Street, London, E1 6PG  020 7247 0101  
Airphone Telecom Solutions Ltd Number One Forder Way Cygnet Park The Hamptons Peteborough, PE7 8GX  0844 967 8888  
Air-Rite Systems (UK) Ltd 8 Friday Street, Minehead, TA24 5UA  01643 707381  
Airwave Solutions Ltd Charter Court, 50 Windsor Road, Slough SL1 2EJ  0800 011 3399 https://www.airwavesolutions.co.uk/ 
AJ Business Solutions Ltd 16 Browning Street, Stafford, ST16 3AX  08707 518 900  
AJ Systems Ltd Moorgate Crofts, Rotherham, S60 2DH  08450941161  
AJP IT Services International House Cray Avenue Orpington Kent, BR5 3RS  01689 422 522  
Ajtelcom(uk)limited ST. GEORGE 'S HOUSE 215-219 chester road manchester, m15 4je  07456083454  
AK Comms Ltd 6 Hamels Park Barns Hamels Park Hamels Lane Buntingford, SG9 9NE  0844 847 4447  
AK Computer Services Ltd 1st Floor Bank House Bank Street, Bishops Waltham, SO32 1GP  01489-897760  
AK Connections Ltd C/O Stafford and Co 2nd Floor Nelson Mill Gaskell Street Bolton, BL1 2QE  08444 128533  
AKA Internet Ltd PO Box 1195 Sanhurst, Berkshire, GU47 7DD  01344 778 645  
AKAL Computer Systems Ltd AKAL House 54a Longthornton Road, London, SW16 5QD  020 8765 1115  
Akaw Ltd Kingsmill Industrial Estate Saunders Way, Cullompton, EX15 1BS  01884669066  
Akita Systems Ltd Unit 5 Chaucer Business Park Watery Lane Kemsing, TN15 6PL  01732 762675  
AKT Projects    
Alamo Business Systems Ltd Alamo House Sessions House Yard, Pontefract, WF8 1BN  0845 500 2050  
Albacore Systems Ltd The Mill Yard Nursling Street, Southampton, SO16 0AJ  023 8073 7100  
Alban Telecom   https://www.ereceptionist.co.uk/ 
Albion Business Ltd 9 Howard Place Shelton, Staffordshire, ST1 4NN  01782 269494  
Albion Business Computers Ltd Unit 3, Ashwyn Business Centre Burgess Hill, West Sussex, RH15 8QY  01444 871 200  
Albion Computers Plc 112 Strand, London, WC2R 0AG  020 7212 9090  
Alchemist Technologies Ltd Alchemist House Brownrigg Loaning, Dumfries, DG1 3JU  01387 269 888  
Alchemy Systems International Ltd Alchemy House Band Lane, Egham, TW20 9LN  01784 223100  
Alchemy79 Ltd 10 woodlands Drive, Beverley, HU17 8BZ  01482 772169  
Alcom Enterprises Ltd 84 The Broadway Chesham, Bucks, HP5 1EG  01494 784 784  
Alertacall Ltd Pit Farm Farmhouse Haggs Lane Cartmel Grange-Over-Sands, LA11 6HE  0845 094 5201  
Alex Polglase 7 Fore Street, Calstock, PL18 9RN  07545 872667  
Alfred Ashley Group Ltd (Business Phone Systems) 38 High Street Northwood Middlesex, HA6 1BN  08708 711 003 http://www.alfred-ashley.co.uk/ 
Alfred Ashley Group Ltd (Business Phone Systems) 38 High Street Northwood Middlesex HA6 1BN  08708 711 003  
All Communications 1 Ashley Road Altrincham, Cheshire, WA14 2DT  0161 257 3595  
All Networks Ltd 12 The Sanctuary, Manchester, M155TR  07780686756  
Allandale IT 85 South Knighton Road, Leicester, LE2 3LS  07977 217196  
Allcooper Ltd Connect Division 7 Hucclecote Road, Gloucester, GL3 3TQ  01452 565 758  
Allenwood Enterprises Ltd Bourne House Milbourne Street Carlisle Cumbria, CA2 5XF  01228 635554  
Alliance Business Communications Ltd 2 Excahnge House Thomas Way Lakesview International Business, Park Canterbury, CT3 4NH  08448 878 878 http://www.alliancebc.co.uk/ 
Alliance Communication Solution Ltd Milton Heath House Westcroft Road, Dorking, Surrey, RH4 3NB  0870 770 7370  
Alliance Communications Ltd Kestrel Court Harbour Road, Portishead, BS20 7AN  0870 300 2022 http://www.alliancecoms.com/ 
Alliance Netserve Ltd Innovation House Innovation Way, Sandwich, CT13 9FF  01227643001  
Alliance Solutions Ltd 5 Viewpoint Office Village Babbage Road, Stevenage, SG1 2EQ  0800 292 2100  
Alliance Strategies Ltd 25a Clewer Fields, Windsor, SL4 5BW  03300883200  
Alliance Systems Ltd 5 Westbury Mews Westbury-on-Trym, Bristol, BS9 3QA  0117 9898110  
Alliance Technologies LLC 301 Wellington Valley Court #201, St. Louis, MO 63005, USA  +1 314 219 7887 https://www.alliancetechnologiesllc.com/ 
Alltek Solutions Ltd 3 St Andrews Hall Broadway, Shifnal, TF11 8AZ  01952 463727  
Allware Systems Ltd 30 The Street Capel, Surrey, RH5 5LE  01306 711625  
Alnitak GmbH Friedrichstraße 78, 10117 Berlin, Germany  +49 30 223 850 50 http://www.dialogagroup.com/ 
Alnwick Computerware Market Place, Alnwick, NE661HS  01665604816  
Aloha Telecommunications Ltd The GTI Suite, Ty Mentre, Navigation Park, Aberycnon CF45 4SN  0845 031 0200 http://alohatelecom.co.uk/ 
Alpha Business Communications Ltd Network Centre High Carr Business Park Newcastle-Under-Lyme Staffordshire, ST5 7XE  01782 576 000  
Alpha Omega Computers Ltd Batley Business Park Grange Road, Batley, WF17 6ER  0843 453 2820  
Alpha Scan Computers Ltd Unit 5 Brickfield Trading Estate Brickfield Lane Chandlers Ford Southampton, SO53 4DR  02380253008  
Alpha Technology Systems LTD Unit 40 Metcalfe Road, Woodstock Way, Skippers Lane Ind Estate Middlesbrough, TS6 6PT  01642 309767  
Alphatalk Ltd Digbeth Court, 162-164 High Street, Deritend, Birmingham B12 0LD  020 7177 5000 http://alphatalk.com/ 
Alsi Consulting Ltd Communications House 26 York St, London, W1U 6PZ  0845 8676586  
Alternative Comms Ltd Acer Court, North Leigh Business Park Nursery Road North Leigh Witney, Oxon, OX29 6SW  01993 880 720  
Alternative Enterprises Ltd Avocet House Trinity Park Trinity Way London, E4 8TD  02084984300  
Alternative Networks plc 5th Floor 240 Blackfriars Road, London, SE1 8NW  0800 912 1490 http://www.alternativenetworks.com/ 
Alternatum Retained Services Ltd G19 Waterfront Studios 1 Dock Road, London, E16 1AG  08713157570  
Alto Comms Ltd 317 GOLDEN HILL, LEYLAND, PRESTON, PR252YJ  01772558868  
AlwaysOn Ltd 1 Napier Court, Napier Road, Reading RG1 8BW  0333 077 0000 http://www.alwayson.co.uk/ 
AM CSS Ltd RM 41, The Mansion, Wrest Park, Silsoe, MK45 4HR  08458381670  
AM Telecom    
AMA Business Systems Ltd The Old Tabernacle Palmyra Road Bedminster Bristol, BS3 3JQ  0117 923 1133  
amatis Networks Ltd 58 Portman Road, Reading, RG30 1EA  01183219944 http://www.amatisnetworks.com/ 
AMBA Defence Ltd Avon House Hartlebury Trading Estate, Hartlebury, DY10 4JB  01299 251 499  
Amba Defence Control Ltd Avon House, Hartlebury, DY104JB  01299251499  
Amber Computing & IT Services Ltd North Wing Officw Deeside Activity Park Dess, Aboyne Aberdeenshire, AB34 5BD  01224 676 945  
Amber Green IT LTD Chambers Business Centre Chapel Road, Oldham, OL8 4QQ  01457 597 597  
Amberworks Ltd 1-5 The Downs Altrincham, Cheshire, WA14 2QD  0161 929 6617  
Ambient Computer Services Ltd Unit 2 Twelvetrees Business Park Twelvetrees Crescent London, E3 3JQ  0207 537 7080  
Amcall Communications Ltd   http://www.amcallcommunications.com/ 
Amcomp Ltd 9 Boltons Close Brackley Barns Green Northants, NN13 6ND  0845 1292 911  
AMD Environmental Ltd Design House 33 Banstead Road, Caterham, CR3 5QG  01883347829  
Amelix Ltd 67 John Wilson Business Park, Whitstable, CT53QT  01227281333  
Amelix Telecom Amelix House, 8 City Business Park, Marshwood Close, Canterbury CT1 1DX  0870 063 2010 http://amelixtelecom.co.uk/ 
Ameris Ltd 8-12 Camden High Street, London, NW1 0JH  020 7387 0473  
Amica Business Solutions Ltd Unit 6 116 Putney Bridge Road, Putney, SW15 2NQ  020 8099 3122  
Amica Technology Ltd 3 Strides Lane, Ringwood, BH24 1ED  01425 600066  
Amicus Networks Ltd Regency House 61a Walton Street Walton-on-the-Hill Surrey, KT20 7RZ  01737 833 334  
Amillan Ltd Connection House 3 The Parkway Centre Heneage Street Birmingham  0121 260 8100  
Amity IT Services Ltd 2 Lower Barn Road, Croydon, CR8 1HQ  +447825149125  
AMJ IT Ltd Bridge Road EPPS Building Ashford Kent, TN23 1BB  01233 663 205  
AML (Midlands) Ltd Suite 3, Charlton House Raynesway, Derby, DE21 7BF  01332650009  
Ammnet Ltd Ammnet House 3 Lichfield Road, Burntwood, WS7 0HQ  01543305133  
AMP Information Systems Ltd Riverside Old Lancaster Rd Catterall Preston, PR3 0HN  01995 600 700  
Ampito Ltd 1 Farnham Road Guildford, Surrey, GU2 4RG  0870 352 1004  
Amplefuture 22 Stephenson Way,  London  E14 2HD  http://www.amplefuture.com/ 
Amplified IT Ltd 130 Old Street, London, EC1V 9BD  02074382025  
Amshire Solutions Ltd Amshire House 4 Oak Green Stanley Green Business Park Cheadle Hulme, SK8 6QL  0330 2020 340  
Amsuk Ltd Hightfield House, Headless Cross Drive, Redditch, Worcs B97 5EQ   
Amvia Ltd Aizlewoods Mill Nursery Street, Sheffield, S3 8GG  0333 733 8050  
Ancar B Technologies Ltd Unit 16, Victoria Spring Business Park Wakefield Road Livesedge West Yorkshire, WF15 6BE  01924 511118  
Anchor IT Solutions Ltd The New Bungalow Cartgate Preesall Poulton-le-Fylde Lancashire, FY6 0NP  01253 807783  
Andalucia Telecom Ltd Unit 6 Buckingham Court Rectory Lane Loughton Essex, IG10 2QZ  020 3195 2232  
Andreas Menzies Associates 12a Mill Street Oakham, Rutland, LE15 6EA  01572 770653  
Andrew Gethin Suite 36 Imex Business Centre Shobnall Road, Burton on Trent, DE142AU  01283531613  
Andrews & Arnold Ltd Enterprise Court, Downmill Road, Bracknell RG12 1QS  01344 400000 https://aa.net.uk/ 
Andrews & Arnold (Numbers) Ltd Enterprise Court, Downmill Road, Bracknell RG12 1QS  01344 400000 https://aa.net.uk/ 
Andrews Computer Services Ltd Nash House London Road Apsley Hemel Hempstead, HP3 9SR  01442 241 200  
Andy's Technical Services Ltd The Old Workshop Station Road, Nailsworth, GL6 0AJ  01453 835791  
Angel Energy Supplies Ltd 100 Rooley Avenue, Bradford, BD6 1DB  01274 758 010  
Angel IT Systems Ltd 38 Churchill Park Colwick, Nottingham, NG4 2HF  0115 9517055  
Anglia IT Solutions 35 Turbine Way, Swaffham, PE377XD  01760725555  
Anglia Telecom Centres PLC 166 Hanford Road, Ipswitch, Suffolk IP1 2BH   
Anglian Internet Ltd Technology House Roundtree Way, Norwich, NR7 8SH  01603 400200  
Anim8te Ltd School house Selborne Road Croydon London, CR0 5JQ  02080993777  
Animated Networks Ltd Paragon House Lord Street South Leigh Lancashire, WN7 1YB  01942 770 070  
Annecto Telecom WestWorld, West Gate, W Gate, London W5 1DT  020 7077 8800 http://www.annecto.com/ 
Annodata Business Communications    
Anova London Ltd 33-35 Daws Lane, London, NW7 4SD  +44 (0) 203 773 1333  
Anova Technology Ltd 27 Westwood Road, Birmingham, B73 6UP  01213539170  
ANT Telecoms Ltd Swift House Peregrine Business Park Gomm Road High Wycombe, Buckinghamshire, HP13 7DL  01494 833 100  
Antar Information Technology Ltd 78 Cross Street Sale, Cheshire, M33 7AN  0161 973 3079  
Antech Solutions Ltd 66 Fir Street, Nelson, BB9 9RQ  07803040666  
Antechs (St Ives) Ltd 8 Crown Street, St Ives, PE275EB  03333443332  
Antheus Telecom Ltd Unit 6, Salisbury House, Salisbury Road, Newton Abbot TQ12 2DF  01626 832 423 https://antheus.co.uk/ 
Anthian Computer Systems Ltd 24 Brookmans Close 24 Brookmans Close, Upminster, RM14 1SJ  01277650645  
Anvil Mobile Ltd Unit B Blois Meadown Business Centre Steeple Bumpstead Suffolk, CB9 7BN  01799 252 000  
Anyit Ltd 9 Station Yard, Needham Market, IP6 8AS  01449 798 088  
Anywhere Sim Ltd Grindleton Business Centre, Grindleton, Clitheroe, Lancs BB7 4DH  01200 400010 https://anywheresimbusiness.com/ 
AOL (UK) Ltd Shropshire House, 11-20 Capper Street, London WC1E 6JA  https://www.aol.co.uk/ 
AOL Europe Services SARL IDA Business Park Cork Road, Waterford  0800 376 5432  
Aonix (UK) Ltd Select House Popes Lane Oldbury West Midlands, B69 4PA   
APC Data Installations Ltd Bradstowe House Whitstable, Kent, CT5 1BF  01227 774 850  
aPC Networx Ltd Bakewell Walk Gamelsey, Glossop, SK13 0AX  01457 339100  
APComms Ltd Larchwood Westfields, Hazler Road, Church Stretton Shropshire, SY6 7AF  0845 4740379  
Apex Networks Ltd 2nd Floor, Dundee House 23-26 Albion Place Ramsgate Kent, CT11 8HQ  0871 522 3141  
Apex Systems Consultancy Ltd 6A Station Road, London, SE25 5AJ  020 8771 7711  
API Infrastructure Ltd 2nd Floor Astra House Christy Way Basildon Essex, SS15 6TQ  020 7183 6359  
API Telecom Ltd Oxford House Bell Business Park, Smeaton Close Aylesbury, Bucks HP19 8JR   
APNET Ltd 103 Palace Road Bromley, Kent, BR1 3JX  020 8315 5820  
Apple Group Holdings Ltd Building 397 Aviation Park West Bournemouth International Airport, Christchurch, BH23 6NW  08081376312  
Apple Telecom Europe    
Applecheck (Essex) Ltd Summer House 10 Park Terrace, Westcliff on Sea, SS07PH  01702680005  
Applescot Ltd 28 Church Street, Inverness, IV1 1EH  01463 896777  
Applied Interactive Media Ltd Goodyear Business Park, Mawdesley, L40 2QP  01704823700  
Applied Network Computing Ltd 71 Church Street Audley Stoke-on-Trent Staffs, ST7 8EE  01782 478 658  
Applied Voice and Data Solutions Cathedral House 23/31 Waring Street, Belfast, BT1 2DX  028 9043 6618  
Apponotec Ltd 16 Philip Avenue Swanley, Kent, BR8 8HG  0845 388 4763  
Approach IT Suite 9, Unit 1B, Cragg Vale, HX7 5TT  03452221510  
APR Telecoms (Maintenance) Ltd Appointment House Philip Ford Way Silfield Road Wymondham, NR18 9AQ  01953713333 http://www.aprtelecoms.co.uk/ 
Aptanet Ltd 39 The Thicket Widley, Waterlooville, PO7 5JL  02392380001  
AQLl Wholesale Ltd 13-15 Hunslet Road, Leeds LS10 1JQ  0113 320 3040 https://aql.com/ 
Aqua IT Support Ltd 14 Cartleburn Gardens Grangewood, Kilwinning, KA13 7ND  0141 5302007  
Aquila Computer Systems Ltd 27-28 King Street, Weymouth, DT4 7BQ  01305 303030  
Aquiss Ltd PO Box 4710 Bridgnorth, Shropshire, WV16 9AN  01746 708090 http://www.aquiss.net/ 
Everything Comms Ltd 65 Gibfield Park Avenue, Atherton M46 0SY  03301224250  
Arbury Systems Ltd Wellington House Birmingham International Park, Solihull, B37 7HB  01215163300  
Arbury UK Ltd 123 New Zealand Avenue, Walton-on-Thames, KT12 1QA  0330 002 0222  
ARC Computer Systems Ltd 18 Elmwood Cl, Wakefield, Wf2 6lp  07766477733  
arc IT Solutions Ltd Thornton House Cemetery Road Stoke on Trent Staffordshire, ST4 2DL  01782 202 529  
Arcade UK Ltd Arcade House Kym Road Bicton Industrial Park Kimbolton, PE28 0LW  +441480861111  
Arcus Technology Ltd 1 Great Cliffe Court Great Cliffe Road Dodworth Barnsley, South Yorkshire, S75 3SP  01226 900111  
Ardencom Ltd Wellington House Starley Way Birmingham Int. Park Solihull, B37 7HE  0870 264 6465 http://arden-group.co.uk/ 
Argo Facilities Ltd Floor 5 Green Lane Bridgtown Cannock, WS11 0NH  01543231010  
Aria Communications Ltd 12 Helens Gate Thomas Rochford Way, Cheshunt, EN8 0SQ  01992470057  
Arid Systems Ltd 34 Victoria Road, Kirkcaldy, KY1 1DR  01592858042  
Arkadin UK Ltd 26-28 Hammersmith Grove, LONDON, W6 7JA  020 8742 6398  
Arknet Telecoms Ltd 7 the ride Desborough, kettering, nn142hz  07756964812  
ARM IT Solutions Ltd Lancaster Court 8 Barnes Wallis Road Segensworth Fareham, PO15 5TU  0800 080 5005  
Armco IT Consulting Ltd 10 The Maltings 7 Castlegate Malton North Yorkshire, YO17 7DP  01653 699513  
Armstrong Bell Ltd Office 13, Greenbox Westonhall Road Stoke Prior Bromsgrove, B60 4AL  0845 050 5757 http://www.armstrongbell.co.uk/ 
Armstrong Communications Plc 4 Cody Court Kansas Avenue Salford Manchester, M50 2GE  0161 868 3003  
Arotec Ltd 1 Heather Gardens, Waltham Abbey, EN9 3YF  03302020223  
ARP Electrical Ltd 21 Glynswood, High Wycombe, HP13 5QL  01494 300100  
Arqiva Ltd Crawley Court Winchester, Hampshire, SO21 2QA  01962 822 161  
Arrandigital LLP The Old Hay Barn Park Terrace, Lamlash, Isle of Arran, KA27 8NB  01770460024  
Arrow Business Communications Ltd St Georges House 24 Queens Road Weybridge Surrey, KT13 9UX  0330 440 4447  
Arrow Comms Ltd Unit 2 Gosforth Park Avenue, Longbenton, NE12 8EG  08081643040  
Arrow Computing Solutions Ltd The Glebe House Cockpen Bonnyrigg Edinburgh, EH19 3HT  01315168520  
Arrow Converged Solutions Ltd Stourside Place Station Road Ashford Kent, TN23 1PP  0808 141 1010  
Arrow IT Solutions Ltd Fort Dunlop Fort Parkway, Birmingham, B24 9FE  0121 295 1305  
Artemis Communications Ltd Artemis Business Centre The Old Great North Road Ferrybridge West Yorkshire, WF11 8PG  01977 679 044  
Artemis Network Services Ltd 147a High Street, Walthamcross, EN8 7AP  02084490651  
Arubic Communications Ltd Lady Lovell Cottage Beech Grove Fulbrook Burford, OX18 4DE  01993764324  
Asa Grp Ltd Mill Mead Business Centre Mill Mead Road, London, N17 9QU  03333444334  
Ascent Global Services Ltd 7-10 Adam Street, London, WC2N 6AA  020 7871 1590  
ASDA Stores Ltd Asda House, Great Wilson Street, Leeds LS11 5AD  0113 243 5435 http://www.asda.com/ 
Ash Telecommunications Ltd 14a The Broadway Woodbridge Road Guildford Surrey, GU1 1DY  0844 846 7707  
Ashdown Solutions Ltd 22 Garden Wood Road, East Grinstead, RH19 1NL  01342 318 022  
Ashgill Communications & Media 4 Mauldslie Place, Ashgill, ML9 3BE  0141 4321 274  
Ashgoal Ltd Unit C, Queens Road, Barnet Herts, EN5 4DJ  020 8275 5100  
Ashleigh Consulting Ashleigh Hillfarrance, Taunton, TA4 1AW  01823461491  
Ashley-Clarke Consultants Ltd 9 Endcliffe Grove Avenue, Sheffield, S10 3EJ  07469 118203  
Ashtag Cloud LTD 66 Canterbury Venue, London, IG1 3NG  02077250816  
Ashton Office Supplies Ltd 204-208 Stockport Road Ashton-Under-Lyne, Lancashire, OL7 0NS  0161 330 2348  
ASIMM IT Ltd 241 Wellington Road, South Stockport, SK2 6NG  0161 870 5780  
Ask Global Solutions Ltd 71-75 SHELTON STREET Covent Garden, LONDON, WC2H 9JQ  01494 727546  
Ask4 Ltd Devonshire Green House 14 Fitzwilliam Street, Sheffield, S1 4JL  01143033200  
Aspect Business Communications Ltd Unit 28 Brynmenyn Business Centre St Theodores Way, Bridgend, CF32 9TZ  08458 277 328  
Aspect International Telecoms Ltd Claredon House High Street Stockbridge, SO20 6EY  0845 634 5566  
Aspect IT Ltd Unit 4 County End Business Centre Jackson Street Springhead Oldham, OL4 4TZ  0161 241 9050  
Aspect Managed Services Ltd 3rd Floor The Bone Mill, Charfield, GL128ES  441275271029  
Aspen Technologies Ltd 16 The Office Village North Road Loughborough Leics, LE11 1QJ  01509 212 202  
Aspire Consulting Ltd 19-20 Amber Business Village Amber Close, Tamworth, B77 4RP  0330 313 0243  
Aspire Net Solutions Ltd 9 Thrasher Road Aylesbury, Buckinghamshire, HP19 0LP  01296 748 583  
Aspire Technology Solutions Ltd Heworth Hall Shields Road, Gateshead, NE10 0UX  0845 6439200  
Assembly Channel Services Ltd Chancery House 53-64 Chancery Lane, London, WC2A 1QU  0844 243 0222  
Assembly Global Networks Ltd 45 Conduit Street, London, W1S 2YN  0844 871 8430  
Assembly Managed Services ltd Chancery House, London, Wc2a 1Qu  02037956880  
Assign IT Ltd Unit 17, Brick Knoll Park Ashley Road Industrial Estate St Albans Herts, AL1 5UG  01727 843888 http://www.assign-it.co.uk/ 
Assimilated Communications Ltd Eleanors Cross Dunstable, Bedfordshire, LU6 1SU  0845 468 1212  
Associated Networks (UK) Ltd Unit 20 Bumpers Enterprise Centre Vincients Road, Chippenham, SN14 6QA  02071270500  
Assume Nothing Ltd 52-54 Shannon Drive, Walsall WS8 7LA  0872 048 4800  
Assuract Ltd 258 Belsize Road 26 York Road, London, NW6 4BT  0333 240 0621  
Assured Communications (Leicester) Ltd Park House 37 Clarence Street, Leicester, LE1 3DW  01509 348 010  
Assured Telecoms Ltd 43 Great Eastern Road, Buckie, AB56 1SR  08003168268  
AST Wales Perch Buildings 9 Mount Stuart Sq, Cardiff, CF10 5EE  029 2002 0001  
Astec Computing (UK) Ltd Astec House Sedlescombe Road South St Leonards on Sea East Sussex, TN38 0TA  01424 460 721  
Aston Barclay UK Ltd 38 Billing Road, Northampton, NN1 5DQ  01604 603 066  
Aston Berkeley Systems Berkeley Aston Berkeley House Lymm Warrington, Cheshire, WA13 9AR  01925 751100  
Astrix Integrated Systems Ltd Venture House Navigation Park, Abercynon, CF45 4SN  0845 22 66 572  
Astro Communications Ltd 41 High Street Swanley, Kent, BR8 8AE  01322 610 111  
Astrofox IT Consultancy Ltd Town Hall Chambers High Street East Wallsend Newcastle Upon Tyne, NE28 7AT  0800 098 871  
Astute Communications Ltd 323 Wilmslow Road, Manchester, M14 6NW  0844 4068 714 http://www.astutecomms.com/ 
Astutium Ltd 1st Floor Number One Poultry, London, EC2R 8JR  020  3475 2555  
As-Voip Communications 20 Fletcher Gate, Nottingham, NG1 2FZ  01159 838795  
Asylia Ltd 64 Hillsbrough Road Lisburn, County Antrim, BT28 1JJ  0800 840 2039  
AT On Line Computing Ltd 4th Floor 33 Cannon St, London, EC4M 5SB  02074541254  
AT Telecommunications Ltd 154 Nightingale, London, N8 9PT  02030962222  
AT Telecoms Ltd Heather Park Drive Heather Park Parade Wembley Middlesex, HA0 1SL  020 8902 2773  
AT&T Global Network Services (UK) B.V. AT&T Global Network Services (UK) B.V Highfield House Headless Cross Drive Redditch, Worcestershire, B97 5EQ  0118 916 8608  
ATB Computing Services Ltd 1st Floor, 1 Invicta House Invicta Park Sandpit Road Dartford, Kent, DA1 5BU  0845 634 6261  
Ateb Ltd Hengwm Rhayader, Powys, LD6 5LD  01597 811 822  
A-Tech Data Solutions Ltd Unit 2 Ermine Point Business Centre Westmill Road Ware, SG12 0EF  0844 561 1772  
Atech Network Services Ltd Unit 5 Rotherbrook Court Bedford Road Petersfield Hampshire, GU32 3QG  0844 854 0054  
A-Tech Services Ltd 37 Spur Hill Ave Poole, Dorset, BH14 9PJ  01202 255830  
Atech Support Ltd Unit 9 Treadaway Technical Centre Treadaway Hill, Loudwater Bucks, HP10 9RS  01628648777  
ATG-IT Ltd Unit 3,, Buntsford Hill Business Park Buntsford Park Road Bromsgrove, B60 3DX  01527570535  
ATH Ltd    
Athena Telecom Ltd 33 Wigeon Lane Walton Cardiff, Tewkesbury, GL20 7RS  0844 332 9955 http://www.athenatelecom.co.uk/ 
Atlantic Communications Corporation Ltd Business First Centre, Millennium City Park, Preston PR2 5DB   
Atlas Business Group of Companies Ltd Globe Works 79 Hosipital Street Nantwich Cheshire, CW5 5RL  0333 666 3332  
Atlas Comms LTD 3 Stamford Road, Corby, NN17 3JL  01536 618199  
Atlas Communications (UK) Ltd 1 West Bank Close, Harbour Ind Estate, Belfast BT3 9LD  028 9078 6868 http://www.atlas-comms.com/ 
Atlas Communications NI Ltd 1 West Bank Close Harbour Industrial Estate, Belfast, BT3 9LD  028 9078 6844  
Atlas Interactive Group Ltd 47 Welbeck St, London W1G 9XA  0870 800 8000  
Atmos Technology Ltd The Mansion Bletchley Park, Milton Keynes, MK3 6EB  01908889750  
Atom IP Ltd 3 college place hampshire, Southampton, so152fb  03300881012  
Atomix Web Solutions Ltd, Freebournes House Freebournes Road Witham Essex, CM8 3US  0845 468 0010  
Atomstream Ltd Unit 3 Cedar Court, 1 Royal Oak Yard, London SE1 3GA   
Atomwide Ltd 2/3 Ravensquay Business centre Cray Avenue Orpington Kent, BR5 4BQ  01689 814 700  
ATS Telecom Ltd Repton House Bretby Business Park Ashby Road Burtin-Upon-Trent, DE15 0YZ  01283 220 688  
Attend2IT Unit 8 Park Farm Ind. Estate Ermine Street Buntingford, SG9 9AZ  01763878086  
Aubury Computer Systems Ltd York House 40 York Road, Tewkesbury, GL20 5HG  01684 299 007  
Audio Visual Machines Ltd 1-3 Old Lodge Place, St Margarets, Twickenham TW1 1RQ  0845 262 6200 http://www.avmi.com/ 
Aujla Business Systems Ltd 34 Hercules Way Aerospace Boulevard, Farnborough, GU14 6UU  01252413700  
Auracall Ltd Britannia House, 960 High Road, London  N12 9RY  020 8497 4622 http://www.auracall.com/ 
Aurae Telecom Ltd Bowmans Cottage, Ower, Southampton, SO51 6AE  07872383963  
Aurora Kendrick James Ltd 7 Sherwood House, Walderslade Centre, Chatham, Kent ME5 9UD  01634 673800 https://www.aurora-billing.co.uk/ 
Aurora Networks Ltd 84-85 Long Lane, London, EC1A 9ET  0870 410 0910  
Aurora Technologies Ltd Leicester Business Centre 111 Ross Walk, Leicester, LE4 5HH  0845 009 9099  
Aurora Telecom UK Ltd Suite D2 The Quadrant Mercury Court Chester, CH1 4QR  01244573150  
Autodata Products Ltd The Holywell Centre 1 Phipp Street, London, EC2A 4PS  020 7749 7949  
Autom8 Ltd 401 Zellig, Birmingham, B9 4AT  03333052998  
Automated Business Systems Ltd 7 Station Approach, Wendover, HP22 6BN  01296 696700  
AV Telecoms 1st Floor 228 Widdrington Road Coventry Warwickshire, CV1 4PB  02476 011435  
Avagio I.T.S LtD 4A Lansdowne Court, Chippenham, SN14 6RZ  01249654871  
Avalle LLP Unit 7 Silverdale In Estate Meadow Road, Worthing, BN11 2RZ  0844 811 9211 http://www.avalle.co.uk/ 
Avalon IT Services Ltd Unit 2 Marine Studios Burton Lane End burton waters LINCOLN, LN1 2UA  03333442482  
Avandda Ltd 820 Birchwood Boulevard, Birchwood Warrington, WA3 7QZ  01925 250010  
Avant Garde Unified Communications Ltd 177 Old Shoreham Road, Hove, BN3 7EA  07584 672 198  
Avantek Computer Ltd St Peters Road, ARNESBY, LE8 5WJ  0330 300 3000  
Avaya UK Avaya House, Cathedral Hill, Guildford GU2 7YL  01483 308000 http://www.avaya.com/en/ 
AVC One Ltd AVC House, Bessemer Drive, Stevenage, Herts SG1 2DT  0870 243 0555 http://www.avcone.net/ 
Avec Systems Ltd 27 Mill Street, Bedford, MK40 3EU  08701251300  
Avensys Networks Ltd 180 Attercliffe Road, Sheffield, S4 7WZ  0114 224 3390  
Avenue UK Ltd 60 Charlotte Road, London, EC2A 3QT  020 7729 2857  
Avian Mobile Ltd Unit 1 Winkhurst Farm Coopers Corner, Sevenoaks, TN14 6LB  01732750744 http://www.avianmobile.co.uk/ 
Avid Computers Ltd South Suffolk Business Centre Alexandra Road, Sudbury, CO10 2ZX  01787 881783  
Avita Tech Ltd 1 Clock House Road Beckenham, Kent, BR3 4JS  020 8663 0077  
Avocet Telecom Ltd Suite 3 Pine Court 36 Gervis Road Bournemouth Dorset, BH1 3DH  01202 789 977  
Avongate Ltd Sheepcote Farmhouse, Sheepcote Lane, Orpington, Kent BR5 4ET  01689 890600 http://www.avongate.com/ 
Avonline plc   http://www.avonlinebroadband.com/ 
Awareness Software Ltd 104 Palmerston Street Bollington, Macclesfield, SK10 5PW  0845 862 0350  
Awkcomputers Ltd 59 Market Street, Westhoughton, BL5 3AG  01942 812 099  
Axia Computer Systems Ltd 111 St Albans Road Watford, Hertforshire, WD17 1UH  01923 333111  
Axiatel France  020 3318 0790 http://www.axiatel.com/gb/en/ 
Axiom Business Systems Ltd Wardens House 4 Broad Street Stamford Lincolshire, PE9 1PB  01780 484 160  
Axione UK Ltd Waterloo Centre Elizabeth House 39 York Road London, SE1 7NQ  020 7401 0020  
Axis Telecom Ltd Suite E, Shirethorn House, Prospect Street, Kingston Upon Hull HU2 8PX  0844 875 1950 http://axisforbusiness.co.uk/ 
Axle Broadband Internet Ltd 10 Chapel Street, Huddersfield, HD4 6HL  01484 970 862  
Axonex Ltd Sixth Floor, Eagle Tower Montpellier Drive Cheltenham Gloucestershire, GL50 1TA  01242 535 700  
Axon-IT.com Ltd Charter House Charter Way Macclesfield Cheshire, SK10 2NG  0845 313 0025  
Ayat Solutions Ltd 331 Paisley Road West, Glasgow G51 1LU   
Ayida Telecom Ltd BIP Building Tat Bank Road, Oldbury, B69 4NH  01216614820  
AYJ Ltd 15 Saltash Road Swindon, Wilts, SN2 2EB  07785 557772  
Aylesbury Vale Broadband Ltd The Gateway Gatehouse Road, Aylesbury, HP19 8FF  01296910221  
Ayrtel Ltd Suite 2C Tower House Hale Leys High Street Aylesbury, HP20 1ST  01296336466 http://www.ayrtel.co.uk/ 
Azel Ltd Innovation Warehouse 1 East Poultry Avenue, London, EC1A 9PT  02032393181  
Azro Ltd Ashfield Lodge 12 Torquay Road, Newton Abbot, TQ12 1AH  08458052740  
Aztec Telecom Ltd Vanguard Suite Broadcasting House Newport Road Middlesbrough, TS1 5JA  01642 919 880  
Aztek Computers Ltd The Chapel Offices Chapel Road Tuckingmill Camborne, TR148QX  01209712816  
Azure Internet 42 Hall Lane, Leeds, LS18 5JF  07947672417  
Azzurri Communications Ltd Azzurri Hous Walsall Business Park Walsall Road, Aldridge West Midlands, WS9 0RB  01922 650111  
B C Computing Ltd The Studios Colarado Way, Castleford, WF10 4TA  01977 667777  
B.R. Fleming (Site Services) Ltd 33-37 South College Street, Aberdeen, AB11 6LE  01224 588 844  
b1Services Ltd First Floor 44 East Street Bromley Kent, BR1 1QW  020 3301 6920  
B2B & Retail Ltd 19 Leicester Road Salford, Manchester, M7 4AS  0161 7922503  
B2B IT Ltd 23 Wigan Road Ashton-in-Makerfield, Wigan, WN4 9AR  03333660077  
B2B Lead Agency Ltd Innovation House Basingview, Basingstoke, RG214HG  0844 870 7256  
B3 IT Consulting Ltd 3 Fournier House 8 Tenby Street, Birmingham, B1 3AJ  0121 699 9900  
B4RN   http://www.b4rn.org.uk/ 
B4U Telecom Units 42-44, North City Business Centre, Belfast BT15 2GG  028 9074 8844 http://www.b4btelecoms.com/ 
Bache Consultancy Ltd Georgia House Chatham Street, Macclesfield, SK11 6ED  08003760333  
Backbone Connect Ltd Kings House 36-37 King Street, London, EC2V 8BB  020 3130 9444 http://www.backboneconnect.co.uk/ 
Backbone UK Ltd 47 Kingsway Place, London, EC1R 0LU  02031309400  
Backup 4 Business Ltd Vicar Lane, Sheffield, S1 2EX  01142238888  
Baker Stone Systems Ltd 20 - 22 Wenlock Road, London, N1 7GU  020 7193 9691  
balsallcommon.net LLP Suites 1&2 21 Wilton Road Balsall Common West Midlands, CV7 7QW  01676 530 540  
Bamboo Distribution   http://www.bamboodistribution.com/ 
Band Telecom Ltd Unit 28 Trade City, Avro Way, Brooklands, Weybridge, Surrey KT13 0VF  01932 303100  
Bandwidth Technologies Ltd Bank House 129 High Street Needham Market Ipswich, IP6 8DH  02036566105  
Baniftec Ltd Farley Edge Farley Lane Westerham Kent, TN16 1UB  01959 564 526  
Banner Business Supplies o2o House Bilton Road Kingsland Business Park Basingstoke, Hampshire, RG24 8LJ  0845 129 7230  
Barablu 58 Marsh Wall, Regatta House, London E14 9TP  020 7170 0400 http://www.barablu.com/ 
Barclay Telecom 145-149 Donegall Pass, Belfast, BT7 1DT  0845 4504650  
Barcode Communications Inc 2 Wembury Drive, Torquay, TQ2 8DT  07481949299  
Barebones Communications Ltd Podium House 61 Chapel Road, Worthing, BN11 1HR  0845 557 0533  
Bargain Deals Direct Ltd Flat Laubobange Hill Lane, Kilgetty, SA68 0QT  01834218807  
Barker Telecommunications Ltd Eagle Street Bury New Road, Bolton, BL2 2BU  01204 380 002 http://www.barkertelecoms.co.uk/ 
Barley Group Ltd White House Bucks Green, Bedingfield, IP23 7LL  020 3167 1716  
Barney & Montana Ltd 25 Enterprise House 25 Ocean Way, Southampton, so14 3xb  07821475578  
Barrington Technology Ltd The Old Barn Cidermill Farm Partridge Lane, Newdigate Surry, RH5 5BP  0870 873 0055  
Barritec Ltd Building 3, Riverside Way, Camberley, Surrey GU15 3YL  0333 550 0325 http://www.barritec.com/ 
Barritel Ltd Building 3, Riverside Way, Camberley, Surrey GU15 3YL  0845 388 7744 https://www.just0845numbers.co.uk/ 
BarTel   http://www.barkertelecoms.co.uk/ 
Barton Technology Ltd Trident Court Business Centre 1 Oakcroft Road Chessington Surrey, KT9 1BD  0203 301 0003  
Barton Telecom Services Ltd Unit 3 Mallard Court Off Mallard Close Earls Barton Northampton, NN60GA  01604 812813  
Base 16 Technology Ltd Unit 5 The Ash Lane Centre Worcester RoadWorcester Road Kidderminster Worcestershire, DY10 1JR  01562 829 875 http://www.base16technology.com/ 
Base Wholesale NW Ltd Unit 2B, Moorgate Point Moorgate Road, Liverpool, L33 7XW  01515450808  
BaseComm40 Unit 2B, Moorgate Point Moorgate Road Knowsley Liverpool, L33 7XW  01515450808  
Basic Business Systems Ltd Brookside road Ruddington, Nottingham, NG11 6AT  0115 940 5000  
Bates IT Ltd 4 Flitch Industrial Estate Chelmsford Road Great Dunmow Essex, CM6 1XJ  01371 875522  
Bath & West Technical Services Ltd Unit 2 Second Avenue Westfield Trading Estate, Radstock, BA3 4BE  01225311970  
Batier Associates Ltd 3rd Floor, 207 Regent Street, London W1B 3HH  020 7586 6660 http://www.xinixworld.com/ 
BAU Systems Ltd Albert Buildings 49 Queen Victoria Street, London, EC4N 4SA  020 3828 1800  
Bay Telecom Ltd Suite 18 Henley House Queensway, Swansea, SA5 4DJ  0844 66 99 111  
Bayt Ltd 52 Hope Street, Lancaster, LA1 3BQ  0843 557 2450  
Ubiquitous Communication Ltd Unit 21, Teignbridge Business Centre Cavalier Road, Heathfield Industrial Estate Newton Abbot Devon TQ12 6TZ  01626 833139  
BazTel Ltd The Coach House Mallory Park Kirkby Mallory Leicestershire, LE9 7QE  020 3519 8193  
BC technologies LLP Holy Loch Marina Sandbank, Dunoon, PA23 8FE  01369706656  
BCH Digital Ltd 16A Portland Tower, Portland Street, Manchester M1 3LD  0844 556 7676 http://www.bchdigital.com/ 
BCN Group Ltd Trident 3, Trident Business Park Styal Road, Manchester Airport, M22 5XB  03450957000  
BCS Computers Ltd Woodland Business Park, Torquay, TQ2 7AT  01803 613486  
BDI Systems Ltd 305 Hook Road, Chessington, KT9 1EH  02083904588  
BDM Voice Ltd The Priory Centre Franklynn Road Haywards Heath West Sussex, RH17 5DS  0845 373 4100  
BDR Voice & Data Solutions Caspian House, Timothy's Bridge Road, Stratford-upon-Avon, Warcs CV37 9NR  0845 313 6020 http://www.bdrgroup.co.uk/ 
BE IP Ltd West 44 44-60 Richardshaw Lane Pudsey Leeds, LS28 7UR  0843 515 7340  
Be Logical UK Ltd 132 Lindsell Road Timperely, Cheshire, WA14 5NZ  0161 928 5157  
Be Un Ltd 260 Bath Road, Slough, SL1 4DX  0113 388 1010  
BEA Solutions Ltd 17 Brambles Enterprise Centre Waterberry Drive Waterlooville Hampshire, PO7 7TH  023 9298 8855  
Beacon IT Ltd 54 Thorpe Road, Norwich, NR1 1RY  01603905420  
BeaconSeek Ltd Hithermailes 212 Mancroft Rd Aley Green Luton, LU1 4DR  01582 842717  
Beaming Ltd Creative Media Centre, Robertson Street, Hastings, East Sussex TN34 1HT  0870 199 4444 http://www.beaming.biz/ 
Beanstalk Telecom Ltd 100 High Ash Drive Leeds,, LS17 8RE  0845 130 5211 http://www.beanstalktelecom.co.uk/ 
BEC Consultants Ltd 15 Warren Park Way Enderby, Leicester, LE19 4SA  0116 2848350  
Beehive Telecom Ltd 79 Thomas Street, Manchester, M41LQ  01613001600  
Bejawn Ltd 40 Beresford Road, Kingston upon Thames, KT2 6LR  +448450093557  
Belgacom International Carrier Services SA Rue Lebeau 4, 1000 Brussels, Belgium  +32 2 547 5210 https://bics.com/ 
Bell UK communications Ltd Suite 6 Belmont Business Centre, 7 Burnett Street Little Germany Bradford, BD1 5BJ  01274 405932  
Bellcom Communications Ltd 199 Godstone Road, Whyteleafe, CR3 0EL  02033930000  
Bellingham Telecommunications Ltd Unit 7, 2 Exchange Court, London WC2R 0PP  020 7183 6226 http://belltel.co.uk/ 
Bells IT Support LTD Chislehurst Business Centre 1 Bromley Lane, Kent, BR76LH  02038839620  
Bellview Comms Ltd 22 Newlands Woods Bardolph Avenue, Croydon, CR0 9JR  07734 046654  
Bellview Communications Ltd 47 Cressex Enterprise Ctr Lincoln Road, High Wycombe, HP12 3RL  08000 093063  
BeLogical UK   http://www.belogicalltd.com/main/ 
Bvrcomm Ltd Main Street, Marston Lincs NG32 2HH  01400 251607  
Bennett Brooks IT Ltd St George's Court Winnington Avenue, Northwich, CW8 4EE  0330 055 3660  
Bentek Ltd 28 Foxtail Road Ransomes Europark, Ipswich, IP3 9RT  01473 271 123  
Bentley Systems UK Ltd 9th floor 20 Gracechurch Street, london, EC3V 0BG  02078610999  
Bentley Walker   http://www.bentleywalker.com/ 
Berkeley De Vere (EC) Ltd Falcon House 7 Oxhill Road Shirley, Solihull West Midlands, B90 1LR  0121 624 3434  
Berry Telecom Ltd Sterling House Old Sarum Salisbury Wiltshire, SP4 6EB  0844 257 8075 http://www.berrytelecom.co.uk/ 
BES Telecom Ltd Parkside Strand Fleetwood Town FC Park Avenue Fleetwood, FY7 6TX  0844 5678427  
Bespoke Computing Ltd Unit 28 A3 Stafford Park 4, Telford, TF3 3BA  0845 004 3025 http://www.bespokecomputing.com/ 
Bespoke Systems Ltd Southbank House Black Prince Road, London, SE1 7SJ  08451275500  
Bespoke Telecoms Ltd 6 Spur Road Cosham, Portsmouth, PO6 3EB  023 9222 1222  
Best 4 Business Communications Ltd Sheldon Chambers 2235-2243 Coventry Road Sheldon Birmingham, B26 3NW  0870 300 3008 http://www.b4bc.co.uk/ 
Best Communicatons Ltd Garden Cottage, Old Road Oulton Heath Stone, ST15 8UT  0845 6038356  
Best Deals Telecom Ltd 253 Alcester Road South Branston Street, Birmingham, B14 6DT  08452093477  
Best Number Ltd 30 Meiros Way, Ashington, Pulborough RH20 3QB  0872 66 80 25 http://118250.co.uk/ 
Best Practice IFA Group Ltd Old Bank Chambers 109-111 High Street Hurstpierpoint West Sussex, BN6 9PU  01273 837600  
Best4biz Ltd Unit 42-44 North City Business Centre NCBC, Belfast, BT15 2GG  02890748844  
Bestway Communications    
Bethel-Ay Ltd 6 MANTON ROAD, LIVERPOOL, L6 6BL  07419672908  
Better Connections (Solutions) Ltd The Coach House Cole Hill Bank, Congleton, CW12 3AD  0333 320 4131  
Better Telecom Ltd Unit 5 & 6 Greenline Business Park Wellington Street Burton-On-Trent Staffordshire, DE14 2AS  0845 652 0248  
Better-IT Ltd 920A Melton Road Thurmaston, Leicester, LE4 8GR  08712710125  
Beyond Telecommunications Ltd Suckings Yard Church Street, Ware, SG12 9EN  0844 225 2970 http://www.beyondltd.co.uk/ 
BGreen Telecom Ltd 31 Park Avenue Eastwood Leigh on Sea Essex, SS9 5XB  01268 740 556  
BHFM Ltd 12 Killyman Road, Dungannon, BT71 6DH  07894434870  
Bicom Systems EURL Unit 5 Rockware Business Centre, 5 Rockware Avenue, Greenford UB6 0AA  020 3399 8800 http://www.bicomsystems.com/ 
Big Fast Web   http://www.bigfastweb.net/ 
Bigfoot Networks Ltd Clavering House Newcastle Upon Tyne, Newcastle, NE13NG  01916404783  
Binary IS Ltd Copthall Bridge House Station Bridge, Harrogate, HG1 1SP  01423 223 511  
BirchenallHowden Ltd 178 Shoreham Street, Sheffield, S1 4SQ  0114 321 0555  
Birchills Telecom   http://www.birchills.net/ 
Birmingham Fibre Ltd Faraday Wharf Holt Street, Birmingham, B7 4BB  01216381000  
Birmingham Telecommunications Ltd Unit 14, The Courtyard, Gorsey Lane, Coleshill, B46 1JA  01675 432 100 / 07712 835 308 http://www.birminghamtelecom.co.uk/ 
BIS Ltd 38 St Mary Axe, London   
BisNet Ltd 137 Victoria Road, Ferndown, Dorset, BH22 9HX  01202 863 246 http://www.uni.net/aec/bisnet/ 
BIT Solutions Ltd The Old Dairy Bucklers Hall Farm Much Hadham Hertfordshire, SG10 6EA  0845 459 4172  
Bit4 Ltd Unit6 Karlsruhe House Queens Bridge Road Nottingham, NG2 1NB  0330 088 2733  
Bitenet Ltd 6 Oakmeade Park, Bristol, BS4 2ET  0117 9831782  
Bits Computers Ltd 2 Assarts Lane, Malvern Wells, WR14 4JR  01684565709  
Bitsol Telecom Ltd Hunters Lodge 372 Palatine Road, Manchester, M22 4FZ  0161 711 1880  
Bitz(UK) Ltd 1 Spark Terrace, Stoke-on-Trent, ST47QA  08444101782  
Bizcall Communications Ltd 38 Longsaw Drive, Birmingham, B31 5BN  01212710042  
Bizitel Ltd Unit 2 The Boscombe Centre Mills Way, Amesbury, SP4 7SD  020 7148 6333  
Bizz Telecom Ltd 291 Bradford Road, Huddersfield, HD1 6ER  01484 515154  
Black & White Network Services Ltd Unit 9 West Barn Business Park Wimborne Road, Blandford forum, dt119hn  01258488878 http://www.bwcommunications.co.uk/ 
Black & Yellow Ltd PO Box 6568, Newark, NG23 7ER  01522 704777  
Black Sheep Business Communications Ltd Meridian House 5 Longworth Road Horwich Bolton, BL6 7BA  01204 206 013  
black widow ltd 137 brent street Hendon, London, NW4 4DJ  08719506000  
Blackbird Ltd 5 Avro Court Ermine Business park, Huntingdon, PE29 6XS  01480222942  
Blackbird Solutions Ltd 5 Avro Court Ermine Business Park, Huntingdon, PE29 6XS  01480222942  
Blackbox Document Solutions Ltd 3-5 Medway Street,, Maidstone ,Kent, ME14 1JS  0845 565 2026  
Blackhouse Global Ltd Hadleigh Business Centre Crockatt Road Hadleigh Suffolk, IP76Rh  08000149148  
Blackmore Business Solutions Ltd 110 Whitehedge Road Garston, Liverpool, L19 1RZ  0151 280 0180  
Blackstar Solutions Ltd 6th Floor Broad Quay House, Bristol, BS1 4DJ  03331232123  
Blagdon IT Ltd Coombe Lodge, Blagdon, BS40 7RG  01761250029  
Blake Systems Ltd 390 Whessoe Road Darlington, Co Durham, DL3 0RP  0843 309 1044  
BlakeLAN Communications Ltd Railway Cottage Mill Road, Brighton, BN1 8ZF  01273 564092  
Blastnet Communications Ltd Station House 7 Station Road Pill North Somerset, BS20 0AD  07799 661817  
Blaze Networks Ltd Beechfield House Lyme Green Business Park Winterton Way Macclesfield, Cheshire, SK11 0LP  01625 511475  
Bleckfield Ltd Thorncroft Manor Thorncroft Drive Leatherhead Surrey, KT22 8JB  01372 700 007  
Blee International Ltd Dragon Enterprise Centre 4 Cullen Mill Braintree Road Witham, Essex, CM8 2DD  01376386854  
Bleepers Box 71, Barnet, EN4 0QD  02084408024  
Blink Telecom Ltd 3 Lewis Road Sidcup, Kent, DA14 4NB  020 3327 5000  
Blizzard Telecom Ltd Swan Court Waterhouse Street Hemel Hempstead Hertfordshire, HP1 1DS  0845 8737950 http://www.blizzardtelecom.co.uk/ 
Bloomberg UK Ltd 39-45 Finsbury Square City Gate House, London, EC2A 1PQ  020 7330 7500  
Blowfish Technology Ltd West Lancashire Investment Centre, Skelmersdale, WN8 9TG  01695 351778  
Bloxham Computers Ltd Ayres Drive, Bloxham, OX154ft  01295404055  
Bloxham Mill Services Ltd Bloxham Mill Barford Road Bloxham Banbury, OX15 4FF  01295 724545  
Bloxxi Ltd 103 Valley Road, Leamington Spa, CV32 7RX  08008021600  
Blue & Red Ltd PO Box 1003, Peterborough, PE1 9GG  0845 603 0603  
Blue Castle Business Services Ltd Warwick House, Long Bennington Business Park Long Bennington Newark, NG23 5JR  01400 283888  
Blue Cherry Telecom Ltd Blue Cherry Telecom Ltd Norfolk House East Entrance 499 Silbury Blvd Milton Keynes, MK9 2AH  01908 849 849  
Blue Chip Data Systems 19-25 Nuffield Road, Poole, BH17 0RU  0845 034 7222  
Blue Leaf Network Solutions 4325 Evergreen Dr, Dale City, 22193  +1 (916) 538-4651  
Blue Letter Ltd Peel House 30 The Downs, Altrincham, WA14 2PX  08001217707  
Blue Line Communications Trewen The Street Motcombe Shaftsbury, Dorset, SP7 9PF  01747-854410  
Blue Logic Computer Systems Ltd Bramley Grange Skeltons Lane Thorner Leeds, LS14 3DW  0113 273 9040  
Blue Penguins Communications House, 290 Moston Lane, Manchester M40 9WB  0161 713 2867 http://www.bluepenguins.co.uk/ 
Blue Planet IT Ltd 2 Hamilton Terrace, Leamington, OX16 9SD  01295533977  
Blue Planet Networking Ltd The Springboard Centre Mantle Lane Coalville Leicestershire, LE67 3DW  01530 817 217  
Blue Ridge Telecom Systems LLC 164 Walkden Road Walkden, Manchester, M28 7DP  0800 932 1890  
Blue Saffron Ltd Shakespeare House 168 Lavender Hill Battersea LONDON, SW11 5TF  0870 891 0202 http://www.bluesaffron.com/ 
Blue Sky Management Services Ltd 11 Gibbsyard, Auchincruive Country Estate, Ayr KA6 5HN  0345 194 8250 http://www.blueskymanagement.co.uk/ 
Blue Sky Telecom UK Ltd 51 Clarkegrove Road, Sheffield, S10 2NH  0061415568400  
Blue Spot Technologies    
Blue Square Telecoms Ltd 1a Bow Lane, London, EC4M 9EE  020 7618 1980  
Blue Telecom Princess House, Princess Way, Swansea SA1 3LW  0333 444 5558 http://www.bluetelecoms.com/ 
Blue Utilities Ltd 25 Valencia Road, Coventry, CV3 2AF  08002808866  
Blue Water Telecoms LTD 157 High Street, Prestatyn, LL19 9AY  08458387486  
Bluebell Cloud Solutions Ltd Suite 221-223 I-Centre Howard House Howard Way Newport Pagnell, MK16 9PX  01908299066  
Bluebell Telecom Ltd Murlain House Union Street, Chester, CH1 1QP  0870 770 8998 http://www.bluebelltelecom.com/ 
Blueberry Connections Ltd 70-74 Brunswick Street, Stockton on Tees, TS18 1DW  01642 345252  
BlueBill Ltd 57 London Road Enfield, Middx, EN2 6DU  020 8370 8370 http://www.netcomms.co.uk/ 
BlueBuoy IT Support Ltd First Floor 39 Gay Street, Bath, BA1 2NT  01225 830667  
Bluecherry Telecom Ltd Queensway House 207-209 Queensway, Bletchley, MK2 2ED  01908 632 943  
Bluecloud IT LTD Walker Davidson House, Newcastle, NE158NL  01915007130  
Bluecom (UK) Ltd 1421 - 1423 London Road, London SW16 4AH  0844 899 0000 http://www.bluecom.uk.com/ 
Bluecube Technology Solutions Ltd Blackhill Drive Wolverton Mill, Milton Keynes, MK12 5TS  0845 2578010  
Bluecube Telecommunications Ltd 1 Whitefriars Business Centre High Street, Lincoln, LN5 7DQ  0845 3713 939  
Blueloop Ltd Blueloop House Ilchester Road Yeovil, BA21 3AA  01460 271055  
Bluemast Communications LTD 1st 27 Kirkgate, Leeds, LS2 7DR  0845 643 59 84  
BlueMoon Solutions Ltd Brook House Edmonds Close, Wellingborough, NN8 2QY  0845 0043202  
Bluesky Telecom 40 Alder Drive Timperley Altrincham Cheshire, WA15 7YG  0161 466 0606  
Bluesource Information Ltd 122 Tooley Street, London, SE1 2TU  0845 319 2100  
Bluestone Solutions Ltd 1a Bridge Street Bedale, North Yorkshire, DL8 2AD  01677 424285  
Bluetone Ltd Top Floor Suite 81 Church Road Hove East Sussex, BN3 2BX  0845 410 0005  
Bluewave Communications Cymru Ltd 103 Lammas Street Carmarthen, Carmarthenshire, SA31 3AP  01267 610061  
Bluu Sky Connections Ltd Manor Farm House London Rd Shardlow Derby, DE72 2GR  01332 799 716  
BMCA Solutions Ltd BMCA Sloutions Limited CIDO Innovation Centre 73 Charlestown Road Portadown, Co Armagh, BT63 5PP  028 3886 8723  
BMS Systems Ltd Trussalls Van-der-breen st. Bisley Stroud, GL6 7BP  01452770500  
Boffins (Wycombe) Ltd Thame House Thame Road Haddenham Buckinghamshire, HP17 8HU  01844 291110  
Bogons Ltd 39 Woolpitch Wood, Chepstow, NP16 6DR  0330 088 1040  
Boldfield Ltd Cambridge House 91 High Street Longstanton Cambridge, CB24 3BS  01954 789 978  
Bolton-Wand Computers Ltd BWCL House Brook Farm Estate Kimbolton LEOMINSTER, HR6 0ES  01568 750365  
BOM Group Ltd Clue House, Central Park Business Estate Petherton Road Hengrove Bristol, BS14 9BZ  01275890100  
BON.net St George House, George Street, Huntingdon, Cambs PE29 3BD  0845 660 5480 http://www.bon.net/ 
Bondgate IT Services Ltd Newham House 3 Dudley Court Dudley Road Darlington, DL1 4GG  01325 369 950  
Bonhomie Ltd 54 High Street Seveonoaks, Kent, TN13 1JG  01732 762 762  
bOnline Ltd Unit 01 Rudolf Place, London, SW8 1RP  020 3617 9950 http://www.bonline.com/ 
Boosh 365 Ltd 5 Great Bramshot Farm Barns Bramshot Lane, Fleet, GU51 2SF  0800 285 1680  
Bootcamp Media Ltd 7 Mary Street, Birmingham, B3 1UD  01216302350  
Bootup Pc Ltd Victoria House Victoria Street, Taunton, TA1 3FA  01823 210010  
Borlin    
Boss Telecom Ltd 61 Rowson Road, Bolton, BL1 4JQ  01618702417  
Boston IT Ltd 20 Leybourne Avenue, Bournemouth, BH10 6HF  01202 530114  
Boston Networks Ltd Titanium 1 King's Inch Place Braehead Renfrew, PA4 8WF  0141 892 2001  
Boundary Communications Ltd Indigo Forward 148 Leadenhall Street, London, EC3V 4QT  0800 032 3621  
Boundary IT Services Ltd Columbia House Columbia Drive Worthing West Sussex, BN13 3HD  01903 263 771  
Boundless Communications Ltd Southside Aviation Centre Leeds Bradford International Airport, Leeds, LS19 7UG  01257752555  
Bourke Telecomunicaoese Servicos LDA Unit 21, Park Royal Metro Centre Britannia Way London, NW10 7PA  020 8965 8964  
Bourne Computer Services 4 Chesire Cottages Charndon, Bicester, OX27 0BT  01296 738 420  
Bourne Technologies Ltd 124 Edgehill Road Regal House 70 London Road, Twickenham Bournemouth, BH9 2PU  01202 530114  
Bowker IT Ltd Whitegate White Lund Industrial Estate Morecambe Lancashire, LA3 3BS  0844 880 0737  
Box Ltd First Avenue Minworth, Sutton Coldfield, B76 1BA  0121 202 0000  
Box Telecoms 126 Duffield Road Little Eaton, Derby, DE12 5DU  0845 303 2775  
Boxer Communications Ltd Linwood St Peters Road Arnesby Leicester, LE8 5WJ  0844 583 8668  
Boxing Clever Soloutions LTD Millennium House 198 Winchester Road, London, E4 9JP  02085310680  
Boxx Communications Ltd Norfolk House East Entrance 499 Silbury Blvd Milton Keynes, MK9 2AH  01908 615791 http://www.boxxcomms.co.uk/ 
Boyns Information systems Ltd Unit 12 Clwydfro Business Centre Ruthin Denbighshire, LL15 1NJ  01824 702211  
Brandan Computer Solutions Ltd 10 Higher Kingsdown Road, Teignmouth, TQ14 9AT  01626 333335  
Breakwater IT Ltd 20 Meridian Way Meridian Business Park, Norwich, NR7 0TA  01603709300  
Breathe Internet Ltd 3rd Floor 207 Regent Street, London, W1B 3HH  0871 424 0102 http://breatheinternet.com/ 
Breeze Networks Ltd Castle Court 41 London Road, Reigate, RH2 9RJ  01737735185  
Breeze Telecom Ltd Moulsham Mill Parkway, Chelmsford, CM2 7PX  0845 888 7800  
Breeze telecommunications Ltd Suite 9 Boarman House 64 Broadway, Stratford, E15 1NT  02085226655  
Brent Telecom 1 Coalisland Road Dungannon, Co Tyrone, BT71 6JT  02887 729580  
Bridge 1 Solutions Ltd 12 Gladstone Road, Hockley, SS5 4BT  020 7099 1631  
Bridge Fibre Ltd Jeffreys Building St John's Innovation Park Cowley Road Cambridge, CB4 0DS  01223 755 055 http://www.bridgefibre.co.uk/ 
Bridgemill    
BridgeOne Telecom Ltd 1st Floor 22 Bevis Marks, London, EC3A 7JB  020 7871 0370  
Bright Orange Outsourcing Ltd West1, West Dock Street, Hull HU3 4HH  01482 900909 http://brightorange.co.uk/ 
Brighter Bills Ltd Manor House Manor Lane Holmes Chapel Cheshire, CW4 8AF  0843 221 1133  
Brighter IT Solutions Ltd Onsite Lodge 9 Mansfield Road, Eastwood, NG16 3AR  08449800722  
Brighton CCTV Ltd 27 Beaconsfield Road Portslade, Brighton, BN41 1XA  01273 782323  
BrightServe Ltd 41-42 Southgate, Chichester, PO19 1ET  01329800003  
Brightstar Ltd 4 Metro Business Centre Kangley Bridge Road, London, SE26 5BW  0845 004 5600  
BrightVisions Ltd 6 Eaton Court Road Colmworth Business Park St.Neots Cambridgeshire, PE19 8ER  01480 708888  
Brightvue Media Ltd Norfolk Street, Liverpool, L1 0BG  0151 329 2166  
Brill Computers Unit 7 Brook Farm Barns Dorton Bucks, HP18 9NQ  01844237009  
Brilliant IT Ltd C5 C6 Harlow Business Centre Lovet Road Harlow Essex, CM19 5AF  01279316431  
Bring IT Together Ltd seitani main road whiteshill glos, gl6 6js  07854585253  
Bristol & West Copiers 196-198 Cheltenham Road, Bristol, BS6 5QZ  01179 232323  
Bristol IT Company Castlemead, Lower Castle, Bristol, BS1 3AG.  01173 700777  
Bristol Technology Group Ltd 255 Coronation Road, Bristol, BS3 1RS  0117 3900040  
Britannia Telecommunications Ltd 15 Bishops Grange Rugeley, Staffordshire, WS15 3JY  0800 012 6336  
Britannic Technologies Ltd Britannic House Merrow Lane Guildford Surrey, GU4 7BN  01483 242 555 http://www.btlnet.co.uk/ 
Britclick Telecom 40 Huddersfield Road Meltham Huddersfield West Yorkshire, HD9 4AG  0845 1 292922  
Britelec Network Services Ltd 39 London Road, Braintree, CM7 2LD  01376321330  
Briteyellow Ltd Cranfield Innovation Centre,, University Way,, Cranfield, MK43 0BT  08455570520  
British Broadcasting Corporation Research & Devlopment Dept 56 Wood Lane, London, W12 7SB  0303 040 9888  
Centrica PLC 97 Talbot Road, Old Trafford, Manchester M16 0TW  0800 072 1945 http://www.home.co.uk/ 
British Telecommunications PLC 81 Newgate Street, London, EC1A 7AJ  020 7356 5000 http://www.bt.com/ 
British Telecom Service Provider    
Brittalk 2 Pevensey Road, Bedford, MK41 8HW  01234 818 948  
Brix Secure Ltd 88a Northampton Road Brixworth Northampton Northampton, NN6 9DY  01604882456  
BRL Consulting Ltd Paynes Place Barn New Road, Shaftesbury, SP7 8QL  01747 859257  
Broad Oak Consultants Ltd Sun Cottage High Street Hatfield Broad Oak Bishops Stortford, CM22 7HE  01279 718 596  
Broadband & Hosting UK Ltd Kemp House 160 City Road, London, EC1V 2NX  07979288913  
Broadband Cloud Solutions Ltd Suite 1 2 Commercial Street, Edinburgh, EH6 6JA  0845 838 1710  
Broadband Computer Co Ltd Amazing Towers Church Street, Gateshead, NE82AT  01912614271  
Broadband Monitoring Ltd Unit 3 Tustin Court Portway, Preston, PR2 2YQ  07551122427  
Broadband Saver Ltd Terminus House Terminus Street, Harlow, CM20 1XA  02037737404  
Broadband Visual Communications Ltd BS3 4LZ  0117 373 5302  
Broadband Wherever Unit C4, Grovelands Avenue, Winnersh, Wokingham RG41 5LB  0800 068 3358 http://www.broadbandwherever.net/ 
Broadband Wifi Ltd Unit 2 The Boscombe Centre Mills Way Amesbury, SP4 7SD  02071004550  
Broadbase Consulting Ltd 3A Quay View Business Barnards Way, Lowestoft, NR32 2HD  01394421389  
Broadcom Ltd Pelican House 83 New Street, Andover, SP10 1DR  01264338110  
Broadgate Voice and Data Ltd The Custom House King George V Lock, London, E16 2NJ  0800 756 2007  
Brodynt Global Services SL Gran Via Carles III, 84, 3rd floor, Barcelona, 08028  +34933801549  
Brontel Ltd Unit 29 Dalton Mills Dalton Lane, Keighley, BD21 4JH  01535 602 221  
Brookfield ICT Ltd Bridge of Weir, Renfrewshire, PA11 3SX  01505 612229  
Brookland Computer Services Ltd Kent House Upper Mulgrave Road Sutton Surrey, SM2 7AY  020 8652 2610  
Bruin Communications Ltd PO Box 98 Leominster, Herefordshire, HR6 6AY  0844 493 0455  
Brunel IT Ltd Woodlands Grange Woodlands Lane Bradley Stoke Bristol, BS32 4JY  07816142660  
Brunel Microscopes Ltd Unit 2, Vincient Road Bumpers Farm Industrial Estate Chippenham Wiltshire, SN14 6NQ  01249 705000  
Brunswick Computers Ltd The Bridgewater Complex, Canal Street, Liverpool, L20 8AH  01512032032  
BS Infrastructure Solutions Ltd 49 Queen Victoria Street, London, EC4N 4SA  0207 653 1945  
Bs42 Ltd 2 Walmagate Road Perivale Greenford London, UB6 7LH  020 3418 0206  
BSAS Telecoms Ltd Systems House, Chippenham Hill, Moulton Newmarket Suffolk, CB8 7PL  01638 552 888  
BSKYB LLU Assets Ltd Grant Way, Isleworth, Middx TW7 5QD  https://www.sky.com/ 
BSKYB Telecommunications Services Ltd Grant Way, Isleworth, Middx TW7 5QD  https://www.sky.com/ 
BT Broadband Talk   http://www.bt.com/ 
BT Business Broadband Voice   http://www.bt.com/ 
BT Business Plan   http://www.bt.com/ 
BT Calling Plans   http://www.bt.com/ 
BT Customer Commitment   http://www.bt.com/ 
BT Lancashire Services Ltd County Hall Fishergate Preston Lancashire, PR1 8RE  01524 586 500  
BT OnePhone Ltd 81 Newgate Street, London, EC1A 7AJ  020 7356 5000 http://www.bt.com/ 
BT Standard Business   http://www.bt.com/ 
BT Standard Residential and Payphone   http://www.bt.com/ 
Bta Ltd Unit 1 Delta Park Smugglers Way, Wandsworth, SW18 1EG  02088714240  
BtL Communication Ltd Manhattan House, 140 High Street, Crowthorne, Berks RG45 7AY  0845 450 2100 http://www.btlcom.com/ 
Btl Network Ltd 29 Oxgate Court Coles Green Road, London, NW2 7EU  02071172520  
BTT Network Solutions LTD Five Willows Farm Old Thrapston Road Cranford Northampton, NN14 4AW  01536 211100  
BTUK Ltd 10 Cranfield Close, Manchester, M40 7AY  07425232503  
Bucks IT Solutions Ltd 5 Main Street Chilthorne Domer, Yeovil, BA22 8RD  0845 524 0970  
Bucks Net Services Ltd 1 Alton House Office Park Gatehouse Way, Aylesbury, HP19 8XU  01296 432 486  
Budget Numbers Ltd Imex Building Maxted Road, Hemel Hempstead Industrial Estate, Hemel Hempstead HP2 7DX  0333 3222123 http://www.budgetnumbers.co.uk/ 
Budgetcom   http://www.budgetcom.co.uk/ 
Building Zones Ltd 85-87 Bayham Street, London, NW1 0AG  020 3475 2185  
Burnt Orange Solutions Ltd BCR Building 3 Bredbury Business Park Stockport Cheshire, SK6 2SN  0844 740 1632  
Burstfire Networks Ltd Davenport House 16 Pepper Street, London, E14 9RP  020 7127 4922  
Burway Computer Services 34 Essex Road, Church Stretton, SY6 6AY  01694240024  
Business Broadband and Communications Ltd Pendle Innovation Centre Brook Street Nelson Lancashire, BB9 9PU  01282 560 500  
Business Broadcast Communications Ltd Gilbert Wakefield, 67 Bewsey Street, Warrington WA2 7JQ  0161 246 6052 http://www.businessbroadcastcommunications.com/ 
Business Comms Solution Ltd Telecom House 158 The Marlowes Hemel Hempstead Hertfordshire, HP1 1BA  01442 353 100  
Business Communications/eDirect Ltd 1st & 2nd Floor, 18-20 The Rock, Bury BL9 0NT  0845 009 0099 http://www.businesscommunications.co.uk/ 
Business Computing and Network Services Ltd 11 Kingswood Court Long Meadow, South Brent, TQ10 9YS  01752 547150  
Business Edge Technologies Ltd 13 Station Road, Hailsham, BN27 2BE  01323400370  
Business Efficiency Ltd 8 Robin Crescent, London, E6 5XA  07933 361504  
Business Equipment Centre (Systems) Ltd 10 Prospect Place East Pimbo Skelmersdale Lancashire, WN8 9QD  0844 264 0430  
Business IT & Accounting Solutions Ltd Bavard House Darnaway Drive, GLENROTHES, KY7 6GL  07968721255  
Business Network Services    
Business Performance Management First Floor Barclays House Gatehouse Way Aylesbury, HP19 8DB  0871 223 6220  
Business Phone Calls Ltd 49a Main Street Woodborough, Nottingham, NG14 6EA  0808 180 1122 http://www.businessphonecalls.com/ 
Business Phone Systems Ltd Centurion House Western Avenue Business Centre Kendal Avenue London, W3 0XA  0870 811 1141  
Business Phones & Networks Ltd The Stables Wassell Grove Lane Hagley Stourbridge, DY9 9JH  0844 822 1212  
Business Serve Plc    
Business Solutions Ltd 21 Barrington Road Altrincham, Cheshire, WA14 1HP  0161 925 4900  
Business Solutions Telecom Ltd 134 Kennel Lane Gt Burstead Billericay Essex, CM11 2SU  01277 624657  
Business Systems (Scotland) 2 Glenpark Ave, Glasgow, G46 7JF  07850 760966  
Business Technologies NI 12 Seymour Park, Lisburn, BT27 5BQ  02892443424  
Business Technology Partners Ltd 32-34 Leigh Rd, Eastleigh, SP509DT  08451308595  
Business Telecom Ltd Dissolved on 5 February 2014   
Business Telecom Solutions Ltd    
Business Telecoms Direct Ltd 123 High Street Rainham, Kent, ME8 8AN  0844 822 3188  
Business Telecoms Solutions Ltd 28 CHURCH ROAD STANMORE MIDDLESEX LONDON, HA7 4XR  08450 344 542  
Hub Business Solutions Ltd 5 Fewster Road Nailsworth, Glos GL6 0DH  01453 833 684  
Business Transfer Communications Ltd    
BusinessCall Newhaven Pyrford Woods Woking Surrey, GU22 8QR  01932 356 222  
Businessip Solutions Ltd 702 Romford Road, London, E125AJ  02070999133  
BusinessWatch UK Fire & Security Ltd Unit 9 Swan Court Forder Way Peterborough, PE7 8GX  0845 290 3733  
Businesswise Solutions Ltd Lomeshaye Business Village Suite 103-105 Nelson Lancashire, BB9 7DR  01282 611329  
Busted Networks Ltd PO Box 103 Bognor Regis, West Sussex, PO22 0WB  0845 527 5888  
Buy Trade Phones Ltd 91 Eldon Road Caterham, Surrey, CR3 5JU  0845 658 2489  
Buzz Connex Ltd PO Box 10262, Harwich, CO12 9AB  0845 643 4287  
Buzz Networks Ltd Unit 11 Leanne Business Park, Sandford Lane, Wareham, Dorset BH20 4DY  01929 775000 http://www.buzzconnect.co.uk/ 
Bvrcomm Ltd Main Street, Marston Lincs, NG32 2HH  01400 251607  
BWN Telecom 12 Craig Meadows, Ringmer, Lewes BN8 5FB  01825 700216 http://www.bwntelecom.com/ 
Bytefetch Ltd Charwell House Wilsom Road Alton Hampshire, GU34 2PP  0844 704 8560  
BYTEiT Chy Gwidden Tregurthen Road, Camborne, TR14 7DZ  01872300190  
Bytemark Ltd 2 Opus Avenue, York, YO26 6BL  01904890890  
C A Consulting   http://www.mlltelecom.com/ 
C S Technical Services Scotland LTD 83 North Street, Levan Fife, KY8 4LY  01333 439 977  
C&J Group Ltd 19 Spruce Park, Ayr, KA73PL  07948994362  
C.G.Murray & Son Ltd PO Box 2256, Stourbridge, DY8 1WT  01384 445600  
C.I.D Fire and Security Ltd Unit 10 Canvin Court Somerton Business Park Somerton, TA11 6SB  01458274555  
C2C Ltd 3 Gower Street, 1st Floor, London WC1E 6HA  01279 841079  
C2-UK Communications Ltd Business First Business Centre, Liverpool Road, Burnley BB12 6HA  0844 854 2700 http://www.c2-uk.com/ 
Computer and Communications Co Ltd The Jeffreys Building St. Johns Innovation Centre Cowley Road Cambridge CB4 0WS  01223 427700  
CAB IT Services Ltd 1 Lyons Court Long Ashton Business Park Long Ashton Bristol, BS41 9LB  01275394600  
Cable & Wireless Communications 26 Red Lion Square, London, WC1R 4HQ  020 7315 4000 http://www.cwc.com/ 
Cable Telcommunications Ltd 15 The Broadway Woodford Green, Essex, IG7 6LU  020 8506 6481  
Cable Telecom Ltd 40 Willoughby Road, London, N8 0JG  08000 901 558  
Cable Telecom (GB) Ltd    
Cablecom Networking Ltd Units 3-5 Windmill Business Park, Kenn, North Somerset BS21 6SR  01275 793400 http://www.cablecomnetworking.co.uk/ 
Cabled Solutions Ltd All Fairoaks Airport, Cobham Surey, GU24 8HU  01932 500650  
Cablestream Ltd Glamorgan House Cardiff Gate Business Park, Cardiff, CF23 8RD  02920 545 945 http://www.cablestream.co.uk/ 
Cablestreet Ltd Office 7, 35-37 Ludgate Hill, London, EC4M 7JN  02034226900  
Cablewise Communications & Systems Ltd The Old Smithy 4 School Road Kidlington Oxon, OX5 1RG  01865 841 166 http://www.commswise.co.uk/ 
Cactus Business Solutions Ltd 16-20 South Street Hythe, Hampshire, SO45 6EB  0333 333 2333  
Cadence Networks Ltd 61 Oaklands Avenue, Brighton, BN2 8PB  02034756800  
Cadenza Communications Consulting UK Ltd 27 Old Gloucester St, London, WC1N 3XX  07788 975996  
CAE Communications Ltd CAE House Colonial House Watford Herts, WD24 4PT  08708 500 510  
Caiman Information Technology Services Ltd Paragon House 59 Palmerston Road, Aberdeen, AB115QP  01224937070  
Calcom Holdings, t/as G6   http://www.g6-global.com/ 
Caldera IT Ltd 32 Meadway Hildenborough, Kent, TN11 9HA  0843 2241000  
Calibre Connections LLP St Davids's House 48 Free Street Brecon Powys, LD3 7BN  01874 640 040  
Calibre Network Ltd    
Calibre Telecoms Ltd The Barn Langtye Lane Ripe East Sussex, BN25 4QL  01323 815 015  
Calidore Computer Systems Ltd Waterside Drive, Gateshead, NE11 9HU  0191 487 9558  
Call Care Direct Ltd Technology Business Park Moy Avenue, Eastbourne, BN22 8LD  01323418395  
Call Collective Ltd 5th Floor Oxford Place, 61 Oxford Street, Manchester M1 6EQ   
Call Connect Ltd PO Box 8026, Reading, RG6 9DR  0800 197 3545  
Call Discounts Lmited 97 Rowan Drive Highcliffe, Christchurch, BH23 4SH  01202795700  
Call Flow Solutions Ltd Suite 2, Branbridges Industrial Estate Branbridges Road East Peckham Kent, TN12 5HF  01622 873810 http://www.callflowsolutions.com/ 
Call Flow Solutions Ltd Suite 2, Branbridges Industrial Estate, Branbridges Road, East Peckham, Kent TN12 5HF  0800 280 0590 http://www.callflowsolutions.com/ 
Call Handling Services Ltd Bakerloo Chambers 304 Edgware Road, London, W1 1DY  0333 3210888  
Call Happy   http://www.callhappy.co.uk/ 
Call Monitor   http://www.callmonitor.com/ 
Call Plan Solutions Ltd 36 College Road Ripon, North Yorkshire, HG4 2HA  0333 3230050  
Call Sense UK Ltd The Old Church, Watling Street, Gailey, Staff ST19 5PR  01785 218360 http://www.call-sense.co.uk/ 
Call Stream Bordesley Hall The Holloway, Alvechurch, Birmingham, B48 7QA  0870 787 7868  
Call Telecom 90 Blunden Drive, Slough SL3 8WQ   
Call08   http://www.callready.co.uk/ 
Call118866 PO Box 44714, London SW1Y 4XD  0844 861 8040 http://www.call18866.co.uk/ 
Call27 Ltd 86-90 Paul Street, London, Ec2A 4NE  01915802727  
Call27 Telecommunications Ltd 18 Riverside Studios
Newcastle Business Park NEWCASTLE UPON TYNE, NE4 7YL 
01915802727  
Call2Abroad 138 Wayside Green, Woodcote, Reading RG8 0QJ  https://www.call2abroad.com/ 
Call2Call   http://www.call2call.co.uk/ 
Callagenix Ltd Top Lodge, Harleyford Estate, Henley Road, Marlow, Bucks SL7 2DX  0870 626 0626 http://www.callagenix.com/ 
CallAngels   http://www.callready.co.uk/ 
Callblocker Ltd 2 Cromwell Street, Worcester, WR4 9EN  01905 388 000  
Caller Support LTD Level 3, 207 Regent Street, LONDON, W1B 3HH  08449937916  
Callgen Ltd 431 London Road, Camberley, Surrey GU15 3HZ  0845 475 7700 http://www.callgen.co.uk/ 
Callger ltd 12 Fortrose Street Glasgow, Glasgow, G11 5LP  01413425460  
Callidus Communications Ltd 132-134 Great Ancoats, Manchester, m4 6DE  07708177791  
Callitech Ltd Moneypenny House, Western Gateway, Wrexham LL13 7ZB  0333 202 1005 https://www.moneypenny.com/uk/ 
Call-Link Communications Ltd 14 Hemmells, Laindon, Essex SS15 6ED   
Callmaster Ltd Wrecclesham Road Wrecclesham, Fernham, Surrey, GU10 4PS  01252 711 053  
Callmaster Mobile Ltd C3 Endeavour Place Coxbridge Business Park, Farnham, Surrey  01252854352  
Callmonitor Ltd 207 Regent Street, London W1B 4ND  020 7120 0000 http://www.callmonitor.com/ 
CallReady   http://www.callready.co.uk/ 
Calls 4 Business Ltd The Stables Potlocks Farm Willington Road Findern, DE65 6AS  0844 908 0080  
Calls Discount   http://callsdiscount.com/ 
The Calls Warehouse Ltd 23 New Mount Street, Manchester M4 4DE  0161 212 7373  
Callswitch Technologies Ltd (in liquidation, December 2013)   
Calltracks Ltd 2 Redhouse Square, Duncan Close, Northampton NN3 6WL  020 3199 3701 https://www.calltracks.com/ 
Calteq Ltd 4a The Lanterns Melbourn Street Royston Herts, SG8 7BX  0808 146 7000 http://www.calteq.co.uk/ 
Calyx Networks Ltd The Pavilion Tower Business Park Wilmslow Road Didsbury, M20 2LS  0870 055 0000  
CAM (Scotland) Ltd 2 Glenpark Ave, Glasgow, G467JF  01415776515  
CAM Systems Ltd Draycott Business Park Cam Dursley Gloucestershire, GL11 5QD  01453 891 000  
Cambconnect Ltd 126C Mill Road, Cambridge, CB12BQ  +44 (0)330 350 1122  
Cambridge Computer Systems Ltd 25 Rosemary House Lanwades Business Park Kentford Newmarket, CB8 7PN  01638751485  
Cambridge Fibre Networks Ltd 21 Signet Court, Cambridge, CB5 8LA  01223 446000  
candasys Ashlar House 115 Walsall Road Aldridge Walsall, WS9 0AX  01213234455  
Candy Telecom Ltd 71 King George V Drive, Cardiff, CF14 4EF  07956378750  
CANetworks Ltd    
Capita IT Services Ltd 540 Bristol Business Park Coldharbour Lane, Bristol, BS16 1EJ  0117 311 3311  
Capital Bytes Ltd Elsinore House Buckingham Street, Aylesbury, HP20 2NQ  08458627463  
Capital Network Solutions Ltd Cardiff House Cardiff Road Barry Vale of Glamorgan, CF63 2AW  0845 3054118  
Capital Networks Ltd 65 Liscard Village Wallasey, Merseyside, CH454JL  08454705704  
Capital Services Corporation Ltd 129 Bromley Gardens, Dunstable, LU5 5RJ  07800826161  
Capital Support Ltd 3 Harbour Exchange Square, London, E14 9GE  020 7458 1250  
Capital Telecom (London) Ltd 81 Chevening Road, London, SE19 3TD  0845 688 3997  
Capital Telecom (WowTel Ltd) 40 Glenferness Avenue, Bournemouth BH4 9NQ  0800 228866 https://capitaltelecom.co.uk 
Capito Holdings Ltd Caputhall Road Deans, Livingston, EH54 8AS  0845 644 3601 - 01506 472 492  
Capstan Communications Ltd Unit B, Blatchford Road Horsham, West Sussex, RH13 5QH  01403 221728  
Capstone Intelligent Solutions UK Ltd 2 London Wall Buildings London Wall, London, EC2M 5UU  020 7993 9395  
CardBoardFish First Floor, Saxon House, John Roberts Business Park, Pean Hill, Whitstable Kent CT5 3BJ  0845 125 9445 http://www.cardboardfish.com/ 
Carden I.T Services Ltd Ingleby House Crowhurst Road Brighton East Sussex, BN1 8AF  01273 552059  
Care Computers and Services Ltd Power House Oak Lane Windsor Berkshire, SL4 5EU  01753 833 177  
Care Software Ltd TechHub 221 High Street, Swansea, SA1 1NW  01792685568  
Carefree Communications Ltd Brunel House Ediva Road, Kent, DA13 0ND  0844 801 3384  
Carlton Reece Ltd 145-157 St John Street, London, EC1V 4PW  0845 163 99 88  
Caroleo Technology Ltd 1a Woodland Road, London, SE19 1NS  020 3137 6492  
The Carphone Warehouse Group PLC 1 Portal Way, London W3 6RS  020 8896 5000 https://www.carphonewarehouse.com/ 
Carr Royd Parks Ltd Sower Carr Lane Hambleton, Lancs, FY6 9EQ  01253 724 000  
Carrera UK Ltd 1000 Lakeside North Harbour, Portsmouth, PO6 3EZ  02392610123  
Carreras Communications Ltd Carreras House 10 Tawe Business Village Pheonix Way, Llansamlet Swansea, SA7 9LA  01792 368111  
Carritech Ltd Hedgerows Horam, East Sussex, TN21 0LJ  01435 812 306  
Carter Utilities Ltd 40 The Badgers St Georges, Weston Super Mare, BS22 7RF  01934 315300  
Case Communications Ltd Unit 12E Norths Estate Old Oxford Road Piddington High Wycombe, HP14 3BE  0845 643 0800  
Cashbacktele.Com Ltd Graphical House Wharf Street, Leeds, LS2 7EQ  03333444901  
CasperTech Ltd St John's Innovation Centre Cowley Road, Cambridge, CB4 0WS  01273930269  
Castleton Technology Managed Services Ltd Blackbrook House, Dorking, RH4 1HJ  01306 888000  
CAT 5 Communication Ltd 2 White Horse Yard Towcester, Northampton, NN12 6BU  01604 924 631  
CAT Communications Ltd 3 Ashley Court Henley Marlborough Wiltshire, SN8 3RH  01672 812 100 http://www.catuk.com/ 
Cat5 Networks 13 Victoria Road South Woodham Ferrers Chelmsford Essex, CM3 5LR  01277244610  
Catalyst Communications Networks Ltd 88 Wood Street, London, EC2V 7RS  020 7871 3030  
Catch IT Services Ltd Unit 2a Herne Business Park, Herne Bay, CT6 7FE  01227 206989  
Catch Telecom Ltd Westward House Glebeland Road Camberley Surrey, GU15 3DB  01276 590 000  
Caultex Technology Ltd Dingle House Blackpond Lane Farnham Royal Bucks, SL2 3EA  0844 804 0123  
Causeway Telecom Ltd 70 Ballyrashane Road, Coleraine, BT52 2LL  02870326623  
Cavaravan Warehouse UK Ltd St Michaels Farm Skegness Road Burgh le Marsh Skegness, Lincs, PE24 5AA  0845 127 8777  
Cavendish Communications Ltd Cavendish House, New Road, Newhaven, East Sussex BN9 0ES  01273 615600 http://www.cavcoms.com/ 
Cavendish Maintenance Ltd    
CB Comms Direct Ltd 14 Ambergate Road, Liverpool, L19 9AU  07715640725  
CC Engineering Ltd 215 HIGH STREET YIEWSLEY, WEST DRAYTON, UB7 7QP  0333 800 8800  
Cc360 Ltd PINEWOOD HOUSE CHINEHAM PARK, BASINGSTOKE, RG24 8AL  01256698355  
CCOMM IT Solutions Media House 2 Sandridge Park Porters Wood St Albans, AL3 6PH  01727758008  
CCS Leeds Ltd Unit A Seacroft Trade Park Coal Road Leeds, LS14 2AQ  0113 294 6699  
CCS Media Ltd Old Birdholme House Derby Road Chesterfield Derbyshire, S40 2EX  01246 200 200  
CCS Mobile Ltd Comms House Hylton Rd, Sunderland, SR4 9EN  0191 534 0140 http://www.ccsmobile.co.uk/ 
CCS2000 Ltd 6 Brewery Close Barker Business Park Melmerby Ripon, Hg4 5NL  01765 606700  
CCT Infotech Ltd Matrich House Goulton Street, Hull, HU3 4DD  01482 647 044  
CCW Solutions Ltd 23 Chalybeate Street Aberystwyth, Ceredigion, SY23 1HX  01970 600 006  
CDK Global (UK) Ltd Cygnet Way Charnham Park, Hungerford, RG17 0YL  01635 215 003  
CDN Networks Ltd Warrington Lane Lymm, Warrington, WA130SW  01612410556  
CDS Networks Ltd Broadfold Business Centre Broadfold Road Bridge of Don Aberdeen, AB23 8EE  01224707360  
CE Services Ltd Martin Dawes House Europa Boulevard, Warrington, WA5 7WH  01925 467 572  
CECOM 11 Pyle Road Bishopton, Swansea, SA3 3HH  0800 019 8333  
CED Services Ltd 6070 Birmingham Business Park, Birmingham, B37 7BF  01217899646  
Cedar Telecom Ltd Innovation House Mill Street, Oxford, OX2 0JX  01865 458 609 http://www.cedar-telecom.co.uk/ 
CELCOMS Ltd 3l Bluebell CLose, Thornton-Cleveleys, FY5 2ZJ  01253 859242  
CellCall Ltd    
Cellhire PLC Park House Clifton Park York, YO30 5PB  01904 610 610 http://www.cellhire.co.uk/ 
CellPipe Ltd Compass House 7 Rook Road, Wooburn Green, HP10 0PY  01628 529 568  
Cellsite Communications Ltd 7 Station Road Yate, Bristol, BS37 5HT  01454 881 821  
Cellular Solutions & Services Ltd Solutions House Knoll Business Park Old Shoreham Road Hove, BN3 7GS  01273 424220  
Cellular Solutions (North East) Ltd Ferryboat House Ferryboat Lane, Sunderland, SR5 3JN  01915165990  
Cellular Solutions Network Services Ltd Solutions House Knoll Business Park Old Shoreham Road Hove, BN3 7GS  01273 424 220  
Central IT Ltd Unit 18 Pottery Court Pottery Way Bulwell Nottingham, NG6 8GN  0845 888 4634  
Central IT Solutions Ltd AMCO House Acanthus Road, Redditch, B98 9EX  01527 908 679  
Central Networks and Technologies Ltd Sandbrook Way Sandbrook Park, Rochdale, OL11 1LQ  01706747474  
Central Support Technologies Ltd The Pump House Stag Place Wooburn Town Wooburn Green, HP10 0TT  01628 531400  
Central Technology Ltd The Bridge Business Park, Beresford Way, Chesterfield, Derbyshire S41 9FG  01246 266130 http://www.ct.co.uk/ 
Central Telecommunications Ltd 50 Hagley Road, Halesowen, B63 4RH  0121 271 0200  
Centralinc Systems Ltd 22 Park Road Holbeach, Spalding, PE12 7EE  01406426768  
Centrepoint Technology Solutions Ltd Southbridge House Southbridge Place, Croydon, CR0 4HA  020307409225  
Centriq Ltd 8 The Square Stockley Park Uxbridge Middlesex, UB11 1FW  03302207115  
Centrix Ltd Winchfield Lodge Old Potbridge Road, Winchfield, Hampshire, RG27 8BT  0870 143 4343 http://www.centrix-uk.com/ 
Centro Webnet Ltd 17 Union Street Bridgtown, Cannock, WS11 3BY  01543 574 422  
Century Systems Solutions Ltd ground floor bury house 31 bury street, london, EC3A 5AR  0203 002 3583  
CER Associates Ltd 34 Beaufort Avenue Blackpool, Lancashire, FY2 9HG  01253 500 555  
Cerberus Networks Ltd 9 Walmagate Road, Greenford Middlesex, UB6 7LH  0845 2571333 http://cerberusnetworks.co.uk/ 
Cerl Networks Ltd Suite 13 7 Beach Road South Shields Tyne and Wear, NE33 2QA  0191 406 0400  
Certum Ltd 201 Bath Street, Glasgow, G24HZ  0345 872 9728  
Certus Communications Ltd Suite 3.2 111 Union Street, Glasgow, G1 3TA  0845 520 5999  
Certus IT Ltd Redcliff House Hazell Drive Celtic Springs Newport, NP10 8FY  0333 370 8090  
Cerulean Solutions Ltd Solar House 282 Chase Road, London, N14 6HA  0845 230 6670  
CESG    
CETSAT Ltd Telstar House Mead Avenue Houndstone Business Park Yeovil, BA22 8RT  08450948777  
CF Systems Ltd Stanley Way Cardrew Industrial Estate Redruth Cornwall, TR15 1SP  01209 340 040  
CFL Communications Ltd 100 Pall Mall, St James, London SW1Y 5NQ  0845 186 0000 http://www.cflmedia.com/ 
Cgeeks Ltd Orchard Street Business Centre 13-14 Orchard Street, Bristol, BS1 5EH  01173250370  
CGS Solutions Ltd 5 Foster Road, Peterborough, PE2 9RS  01733 667102  
CH Business Resources Ltd 34 Homlesdale Road, Highgate, N6 5TQ  020 8341 0111  
Chain Telecom Ltd 21 West Street Storrington, West Sussex, RH20 4DZ  0844 887 7000 http://www.chaintelecom.co.uk/ 
Challenger Mobile Communications Ltd Parkway Deeside Industrial Park Deeside Flintshire, CH5 2NS  01244837837  
Challenger Technology Ltd 10 Mercury Rise Altham Business Park, Altham, BB5 5BY  01282560486  
Chalvington Communications Ltd Units 6&7 Apex Business Park Diplocks Way Hailsham East Sussex, BN27 3JU  01323 440 555 http://www.chalvingtoncomms.co.uk/ 
Chambers Technology Support Ltd 15 New Bridge Street, London, EC4V 6AU  0845 621 9800  
Chameleon Support Ltd The Business Place Unit 8, Park Road Mansfield, NG19 8ER  08443 575837  
Chandler Computers Ltd 45 Anstey Fields, Birmingham, B23 5RL  01213644545  
Channel Networks Services Ltd Channel House 127 Duckmoor House, BRISTOL, BS3 2BJ  0117 900 5000  
Channel Telecom Ltd Channel House, 78 High Street, Epping CM16 4AE  0845 330 0015 http://www.channeltelecom.com/ 
Charles Briscoe-Smith - 150 Westway, London, SW20 9LS  020 8542 0505  
Charles Street Communications Ltd 6 Duke Street St Jame's, London, SW1Y 6BN  020 7451 1313  
Charles Street Solutions Ltd 28 Throgmorton Street 2nd Floor, London, EC2N 2AN  02072562288  
Charlton Networks Ltd The Canterbury Business Centre 18 Ashchurch Road Tewkesbury Gloucestershire, GL20 8BT  001684 856830  
Charter Software Ltd The Coach House Summerhill Smallhythe Road Tenterden, TN30 7NB  0117 230 6992  
Charterhouse Network Services Ltd Gate House, 5 Rivington Street, London, EC2A3SB  0207 613 7400  
Charterhouse Voice & Data PLC Gate House 5 Chapel Place Rivington Street London, EC2A 3DQ  020 7613 7395 http://www.cvd.plc.uk/ 
Chase Telecom Ltd 2/7 Canon Lane, Edinburgh, EH3 5HD  0131 557 2771  
Chauhan Ltd 3 Mercia Village Torwood Close Westwood Business Park Coventry, CV4 8HX  02476998229  
Cheap Calling   http://www.cheapcalling.co.uk/ 
Cheap Calls Haarlemmerstraatweg 32, 2343 LB Oegstgeest, The Netherlands  http://www.cheapcalls.co.uk/ 
Cheap International Calls Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ  0344 332 1234 https://cheapcheapcalls.co.uk/ 
Cheaper International Calls   http://cheaperinternationalcalls.co.uk/ 
Cheapest International Calls LLP Dissolved on 11 October 2016   
CheapestChat PO Box 20338, London NW11 9ZW  0870 041 2214 http://www.cheapestchat.com/ 
Check Communications Ltd    
Cheers International Telecom Ltd Britania House, 1-11 Glenthorne, London W6 0LH  0870 244 4422 http://www.cheersinternational.com/ 
Chello Communications Ltd Kemp House 152-160 City Road, London, EC1V 2NX  03300431234  
Cherry Call Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ  0344 332 1444 https://cherry-call.co.uk/ 
Cheshire Business Services (2008) Ltd 89-91 Buxton Road Heaviley, Stockport, SK2 6LR  0161 487 3332  
Chess Ltd Bridgford House, Heyes Lane, Alderley Edge, Cheshire SK9 7JP  0844 770 6000 https://chessict.co.uk/ 
Chesterfield Associates Fitzroy House Lynwood Drive Worcester Park Surrey, KT4 7AT  020 8715 0200  
Chi Technology Ltd Hilken House, 10 Shottery Brook Office Park Timothys Bridge Road, Stratford-upon-Avon, CV37 9NR  01789404707  
Chicane Internet Ltd Pegasus 1 Orion Business Park Gt.Blakenham Ipswich Suffolk, IP6 0LW  020 3137 4445  
Chilli Comms Ltd 14 Pennycress Lyde Green, Bristol, BS16 7GG  01173 700 247  
Chilli Telecom Ltd New Chartered House Centuriion Way Cleckheaton West Yorkshire, BD19 3QB  0844 8710181  
Chiltern Telecom Ltd 13 St Mary's Glebe, Edlesborough, LU6 2RB  01582 604 040 http://www.chilterntelecom.co.uk/ 
Chime Telecom Ltd    
China Mobile International Ltd Level 30, Tower 1, Kowloon Commerce Center, 51 Kwai Cheong Road, Kwai Chung, Hong Kong, 000  (852) 3155 6986  
China Mobile International (UK) Ltd 90 Cannon Street, London, EC4N 6HA  0044-2079339190  
China Telecom (Europe) Ltd 2nd Floor Bellerive House 3 Muirfield Crescent, London, E14 9SZ  020 7536 8340  
Chitt-Chatt Communications Ltd 160 CITY ROAD, LONDON, EC1V2NX  08438860008  
Teledesign Ltd Oakfield Wrotham Hill Road Wrotham Sevenoaks, Kent TN15 7PT  020 7047 4446  
Choice Telecommunications Ltd Ground Floor 11 Pelham Court Crawley West Sussex, RH11 9SH  0800 875 88 88  
Choose Broadband Ltd Top Apartment 33 South Road, Lancaster, LA1 4XJ  0152466909  
Chorus IT Ltd 1 Serbert Way Portishead, Bristol, BS20 7GD  01275 398 900  
Christian James Ventures Ltd 309 London Road Camberley, Surrey, GU15 3HE  01276 817 444  
christopher henson 1 Kemps Close, Kettering, NN141GQ  07979693699  
Christopher Stephenson Craigdarroch Abbey Gardens, Fort Augustus, PH32 4BG  01320366256  
Chrome Telecom Ltd 106 Kiln Road, Fareham, PO16 7UN  01329 482 516 http://www.chrometelecomgroup.co.uk/ 
CHS Networks 88 Judd Road Tonbridge, Kent, TN9 2NJ  0845 644 1566  
ChunkyChips.net Ltd ChunkyChips.net Ltd Units 1-2 Cornell Estate Navigation Road Chelmsford,Essex, CM2 6HE  0870 255 8000  
CIMS Networks Ltd Halifax House 93-101 Bridge Street, Manchester, M3 2GX  0161 6694672  
Cipher IT Services Ltd 100 Ock Street, Abingdon, OX14 5DH  01235884797  
Ciptex Ltd Unit 2 Woodingdean Business Park Sea View Way Brighton, BN2 6NX  0845 880 8080  
Circle Computers Ltd Chipping Court 1 Chipping Hall Barns Chipping Herts, SG9 0DP  01707 818 085  
Circle IT Solutions Ltd 2 Lime Tree Court Mulberry Drive Cardiff Gate Business Park Cardiff, CF23 8AB  0330 333 8001  
Circle LCR Ltd 2 Limetree Court Mulberry Drive Cardiff Gate Business Park Cardiff, CF23 8AB  0333 323 0380  
CircleNet LLP 12 Horne Close West End Southampton, so18 3ae  02380476645  
Cirrus 3 Ltd 145-157 St John street, London, EC1 4PW  08451800936  
Cirrus IT Services (UK) Ltd 6 Smirthwaite Street, Burnley, BB11 4AZ  03303500252  
Cirrus Response Ltd 3-5 Red Lion Street, Richmond, Middx TW9 1RJ  0330 404 2150 http://cirrusresponse.com/ 
Cisilion Ltd Guildford Road, Leatherhead, KT22 9UT  087 0152 5750  
Citrus Networks UK Ltd Orchard House 85 Mosslea Road Whyteleafe Surrey, CR3 0DS  020 7100 2410  
Citrus Telecommunications Ltd 99 Holdenhurst Road, Bournemouth BH8 8DY  01202 317657 http://www.citrustelecom.com/ 
City Business Solutions UK Ltd High Holborn House, 5th Floor 49-51 Bedford Row, London, WC1R 4LR  02033557334  
City Communications Ltd 64 Amy Street, Leicester, LE3 2FB  0116 303 3234 http://www.city-communications.co.uk/ 
City Numbers Ltd 1st Floor, 2 Marlin Office Village, 1250 Chester Road, Birmingham B35 7A  0845 366 6555 http://www.citynumbers.co.uk/ 
city properties management ltd 100a Northwold Rd, London, E5 8RL  02075027447  
City Voice & Data Ltd 152-160 City Road, London, EC1V 2NX  0845 5192622  
Citycom Technologies Ltd 70 St Mary Axe, London, EC3A 8BE  02078704841  
Citytalk Communications Ltd Unit 8 Bridgegate Business Park Gatehouse Way Aylesbury Bucks, HP19 8XN  0845 618 9828 http://www.citytalk-comms.co.uk/ 
Citytalk Midlands Ltd 7 The Hayes, Lye, West Midlands DY9 8NX  01384 887733 https://www.citytalk-mids.co.uk/ 
Citytel Communications Ltd 625 Romford Road, London, E12 5AD  02030115118  
Civica UK Ltd Vanguard House Dewsbury Road, Leeds, LS11 5DD  0113 244 1404  
CIX Online Ltd 1-3 Pampisford Road Purley, Surrey, CR8 2NG  08450 099175  
CJ Systems Ltd Exchange House, Taunton, TA1 4EB  01823478515  
CJP Telecoms LTD 6 Kelvin Close Old Basing, Basingstoke, RG247AP  07725829930  
claireLOGIC Corporate Ltd 11 Vineyard, Abingdon, OX14 3PX  01865989144  
CLANNET Broadband Ltd The Gale Stockbridge House Cawood Selby, YO8 3UJ  01757 668179 http://www.clannet.co.uk/ 
Claranet 21 Southampton Row, London, WC1B 5HA  020 7685 8310  
Clarion Communication Management Ltd Unit 5 107 Freston Road, London, W11 4BD  08456 444 585 http://www.clarioncomms.com/ 
Claritas Solutions Ltd Bowcliffe Hall Bramham, Wetherby, LS23 6LP  01937 849966  
Claritel Ltd Suite 19 Blackburn Rovers Enterprise Centre Nuttall Street Blackburn, BB2 4JF  0844 412 8050  
Clarity Document Solutions (Bham Regional) 100 Hagley Road,, Birmingham, B16 8QQ  0330 123 2254  
Clarity Telecom Ltd Number One, Lanyon Quay, Belfast BT1 3LG  028 9027 0050 http://claritytele.com/ 
Clarity voice & data communications Ltd 100 Harringdale Road High Harrington Cumbria Workington, CA14 4NU  01697320011  
Clark Computers Ltd Auchterless Turriff, Aberdeenshire, AB53 8EP  01888 511 441  
Clarus Communications Ltd Hudson House, 8 Albany Street, Edinburgh, EH1 3QB  01312734688  
Class Affinity Projects Ltd The White House Church Road, Leatherhead, Surrey, KT22 8BB  0870 770 0321  
Cleanline Installations Ltd Terminal House Station Approach Shepperton Middlesex, TW17 8AS  01932 260490  
Clear Business Ltd Po Box 257, Manchester, M22 4ZF  0844 257 0844 http://www.clearbusiness.co.uk/telecoms/ 
Clear Computing Ltd 14b Brookside Business Park Brookside Avenue Rustington West Sussex, BN16 3LP  01903 786 702  
Clear Picture Services Ltd 351b Northdown Road, Margate, CT9 3PB  01843380750  
Clear Telecom and Data Ltd 41 Progress Road Leigh-on-Sea, Essex, SS9 5PR  01702 512 990 http://www.cleartelecom.co.uk/ 
Clearbase Solutions Ltd Clearbase Solutions Ltd Globe Works Penistone Road Sheffield, S6 3AE  0845 3710289  
Clearcall 2000 Ltd Unit 40 The Enterprise Centre Cranbourne Road Potters Bar, Hertfordshire, EN6 3DQ  0800 027 7066  
Clearcomm (UK) Ltd Omnia One 125 Queen Street Sheffield South Yorkshire, S1 2DG  0870 7777 155  
Clearstream technology Ltd Tredomen Innovation & Technology Centre Tredomen Business Park Ystrad Mynach Hengoed, CF82 7FN  0845 867 4075  
Cleartalk Telecom (UK) Ltd 48 Claredon Road Audenshaw, Manchester, M34 5QB  0161 355 8836  
Clearview Network Ltd Unit 3, 1a Northinch Court, Glasgow, G14 0UG  01412510040  
Clearwave Enterprise Solutions Ltd 5 Audax Court, York, YO30 4RB  01904 409 940  
Clearway Telecom Ltd Calverley House 55 Calverley Road Tunbridge Wells Kent, TN1 2TU  01892 74166  
ClevaGroup Ltd Mill Studio, Ware, SG12 8PY  03333 448 300  
Click Logic Ltd 78 Kepier Chare Crawcrook Ryton Tyne and Wear, NE40 4UR  01914018752  
Click Right Ltd 16 Gretton House 305 Globe Road, London, E2 0NT  02089835727  
Click2win Ltd 1st Floor 2 Woodberry Grove Finchley London, N12 0DR  08449937916  
Clicknetworks Ltd 1 Tennant Avenue College Milton, South East Kilbride, G74 5NA  0141 530 9116  
Clickphone Communications Ltd Unit 9 17 Piries Place Horsham West Sussex RH12 1BF  01403 339 809  
Clickphone Communications Ltd Castleton House Heathside Esher Surrey, KT10 9TB  020 3434 2711  
Clifton Computer Care Ltd CCCit The Waterfront Welsh Back, Bristol, BS14SB  01173700050  
Clik3 Ltd SUITE 7, CENTRAL OFFICE BUSINESS DEVELOPMENT CENTRE STAFFORD PARK 4, TELFORD SHROPSHIRE, TF3 3BA  08449951989  
Clix Ltd Unit G Lostock Office Park, Lynstock Way, Bolton BL6 4SG  0844 801 9792 http://www.clix.co.uk/ 
Clocom UK Ltd 111 Wilmslow Road Handforth Wilmslow Cheshire, SK9 3ER  03333446677  
Clogher Valley Communications 24 Main Street Augher, Co Tyrone, BT77 0BD  028 855 49869  
Cloud & Fibre Ltd Communication House Parkway, Deeside, CH5 2NS  0161 260 0196  
Cloud 9 IP Ltd 4 Beechfield House West Bar street, Banbury, OX16 9RR  0333 210 8990  
Cloud 9 Technology Solutions Ltd 1st Floor 114 Ashley Road St Albans Hertfordshire, AL1 5JR  01727 834 252  
Cloud Bolt Networks Ltd 25 Mayfair Court, Watford, WD18 7GA  07985368844  
Cloud Business 8 North Street Guildford, Surrey, GU1 4AF  0845 680 8538  
Cloud Business Communications Ltd Unit 1 Joshua Business Park Cromford Road Nottingham, NG16 4EW  01773 768888  
Cloud Cambridge Ltd 5 The Quay St Ives, Cambridgeshire, PE27 5AR  01480262222  
Cloud Intellect Ltd Unit 16 Eckland Lodge Business Park Desborough Road Market Harborough, LE16 8HB  03336 661036  
Cloud IT Ltd Wenta Business Centre Colne Way, Watford, WD24 7ND  01923 606 268  
Cloud Nine Telecom Ltd Moulsham Mill Parkway Chelmsford Essex, CM2 7PX  0800 988 7473  
Cloud One IT Ltd 152-154 Coles Green Road, London, NW2 7HD  0203 051 2521  
Cloud Shepherd Ltd Unit 3, Elgar Business Centre Moseley Road Hallow Worcester, WR2 6NJ  0800 368 7373  
Cloud Software Systems Ltd 5 Crown Street, Aberdeen, AB116HA  01224 518400  
Cloud Space (UK) Ltd Metropolitan Wharf Building 70 Wapping Wall, London, E1W 3SS  020 7749 6898  
Cloud Telecom Ltd Unit 3 Kingfisher House, New Mill Road, Orpington, Kent BR5 3QG   
Cloud1990 Ltd Standroyd Mill Cottontree Lane, Colne, BB8 7BW  08009101990  
Cloud2tel Ltd 14 Mall Chambers Kensington Mall, London, W8 4DY  07776222101  
Cloud4 Computers Ltd Acorn Business Centre Acorn Court Butt's Street Leigh, WN7 3DD  01618501264  
Cloud9 Communications Ltd Pinewood, Chineham Business Park, Crockford Lane, Chineham, Basingstoke, Hants RG24 8AL  01277 779100 http://www.cloud9mobile.co.uk 
Cloud9 Telephony Ltd Darwin House The Innovation Centre Kingswinford West Midlands, DY6 7YB  0121 546 0405 http://www.cloud9.uk.com/ 
Cloudamour Ltd 5 Hercules Way Leavesden Park, Watford, WD25 7GS  020 3002 4111  
CloudCall Ltd 1 Colton Square, Leicester LE1 1QH  033 0335 0000 https://www.cloudcall.com/ 
Cloudcell Technologies Ltd 9 GREEN CLOSE, GREEN CLOSE, LONDON, NW9 8AT  02036675490  
CloudConnX Ltd 1 Grove Road, Eastbourne, BN21 4TW  0845 450 0550  
CloudCover IT Services Ltd 131 - 133 Minerva Street, Glasgow, G3 8LE  0141 280 2882  
CloudM Solutions Ltd Blackwell House Guildhall Yard, London, EC2V 5AE  01635 246 031  
Cloudnet Computing Ltd 411 Scott House The Custard Factory Gibb Street Birmingham, B94DT  08452007767  
CloudScape Connect Ltd Unit Q Troon Way Bus Ctr Humberstone Lane Leicester, LE4 9HA  0116 274 7360 http://www.cloudscapeconnect.com/ 
Cloudscape Network Systems Ltd 47 Oxford Drive, London, SE1 2FB  020 7403 3705  
Cloudsteps Ltd 69 Farmleigh Drive, Crewe, CW1 3PY  01270440044  
Cloudtelephones Ltd Harvey House St Edwards Court London Road Romford, RM7 9QD  01708756555  
CloudVPS Ltd 83 Duice Street, Manchester, M1 2JQ  03303541231  
Clouvider Ltd 88 Wood Street, London, EC2V 7RS  0800 566 8160  
Clovertec Ltd 4330 First Floor Park Approach, Leeds, LS15 8GB  0113 887 3710  
Club Communications Ltd The Hub, Stonehouse Business Park, Stonehouse, Glos GL10 3UT  http://www.club-comms.co.uk/ 
Club Talk Ltd Ailesbury Close Chippenham, Wiltshire, SN15 3TX  08712 310 410  
ClubWizard Ltd 67-69 Whitfield Street, London, W1T 4HF  0844 991 3786  
Clyde Jordaan St Peters way, Cambridge, PE280AX  07912532788  
Clyde Solutions Ltd 22 Payne Street, Glasgow, G4 0LF  0141 353 4350  
CMC Digital Ltd Unit 1 Forest Road Industrial Estate South Sheilds Tyne and Wear, NE33 1PT  0191 427 9244  
CMR Consultants Ltd    
CN Telecom Ltd 17 Nobel Square Basildon, Essex, SS13 1LP  01268 720 190  
CNS Communications Ltd 47 Oxford Drive, London, SE1 2FB  020 7403 3705  
CNS Computer Networks Ltd Transport Hall Gloucester Road Avonmouth Bristol, BS11 9AQ  01179829666  
CNS IT Ltd 4 The Courtyard Mollington Grange, Chester, CH1 6NP  01244 851 866  
CNW Communications Ltd    
Coast Technology Ltd Wellwood House Dark Lane Morpeth Northumberland, NE61 1SU  0191 580 0220  
Coastal Telecom Ltd Colonial House Station Road, Leiston, IP16 4JD  01728 635141  
Coates Consulting Ltd 11 Leven Road Lundin Links, Fife, KY8 6AQ  01333 329 118  
Cobalt & Silver Ltd 16 Oakhill Road, Doncaster, DN2 5NX  0333 2100 345  
Cobalt Communication Solutions Ltd 2a North Street Heavitree Exeter Devon, EX1 2RH  0139 290 8888  
Cobalt Telephone Technologies Ltd Intec 2, Wade Road, Basingstoke RG24 8NE  01256 869600 http://www.ctt.co.uk/ 
CoBIT South West Ltd Chy Melyn, Shortlanesend, TR4 9DE  0845 6422652  
Cobus Ltd Empire House 22 Strickland Street Hull East Yorkshire, HU3 4AQ  01482 421070  
Code Zero Ltd 47 Coach Road Hamble, Southampton, SO31 4LA  07900243985  
Cognito Software Ltd 31 Church Street, Oldbury, B69 3AG  0121 314 7745  
Cohesion Communications Ltd 3 The Green Stratford Road, Solihull, B90 4LA  0121 794 9297  
Colbek Systems Ltd 1 Colbek Court Haunchwood Park Drive Galley Common Nuneaton, CV10 9SP  024 7639 7070  
Colemans of Bedford 28 High Street Higham Ferrers, Wellingborough, NN10 8PA  07860 774411  
Colins IT Ltd Unit 1 Curriers Close, Coventry, CV4 8AW  02476960946  
CoLocker Ltd Cedar House Vine Lane, Hillingdon, UB10 0NF  01908 886560  
Colt Technology Services Ltd Beaufort House, 15 St. Botolph Street, London EC3A 7QN  020 7390 3900 http://www.colt.net/ 
Coltel Communications Ltd Unit 1, Tyseal Base Craigshaw Crescent, Aberdeen, AB12 3AW  01224899299  
Columbus Telecom Ltd Milngavie Enterprise Centre Ellangowan Court, Glasgow, G62 8PH  0870 060 3602 http://www.columbusuk.com/ 
Columbus Telecom Solutions Ltd 1 Colquhoun Drive, Bearsden, Glasgow, G61 4NQ  0141 943 1943  
Com Management Inc    
Comart Holdings Ltd Technology House Ridge Road, Rotherham, S65 1NS  01709 363418  
Combat I.T Solutions LTD 423 Lancaster Road, Morecambe, LA46NB  01524489101  
ComBination IT Solutions Ltd Hope Park Business Centre, Bradford, BD5 8HH  08452575853  
Combitel Ltd 37 Rhos Road Rhos-on-Sea, Conwy, LL28 4RS  01492542421 http://www.combitel.co.uk/ 
Comcen Computer Supplies Ltd Bruce Road Swansea West Ind Park, Swansea, SA5 4HS  01792 515 566  
Comdigit Ltd Kemp House 152 City Road, London, EC1V 2NX  02070968453  
Comex IT Ltd County House, Beaufort Road, Swansea, SA6 8JG  08447 706262  
Comis Technology Ltd 162-168 Regent St, London, W1B 5TD  02037407190  
Commercial Ltd Commercial House Liddington Park Old Station Drive Leckhampton, Cheltenham, GL53 0DL  01242 703 400  
Commercial Networks Ltd Hill Quays 14 Commercial Street, Manchester, M15 4PZ  03334443455  
Commercial Technology and Development Services Ltd The Lodge Tannery Court Tanners Lane Warrington, Cheshire, WA2 7NA  01925 563 678  
Commexchange Ltd Unit 2 Knowl Piece Wilbury Way Hitchin, SG4 0TY  01462 426 500  
Commi Holdings Ltd Overdene House, 49 Church Street, Theale, Reading RG7 5BX   
Commplete Ltd The Custom House,, Barnstaple, EX311EU  0333 2226644  
Commpliment Ltd Commpliment House, Upcott Park, Pottington Business Park, Barnstaple, Devon EX31 1AD  0800 019 2217 http://zeroseventelecom.com/ 
Commpoint Ltd 56 CHRISTIAN FIELDS, LONDON, SW16 3JZ  02086960299  
Comms Coefficient Ltd 3, Tannery House Tannery Lane, Send, GU23 7EF  02034189000  
Comms Consulting Ltd 30a Elm Hill, Norwich NR3 1HG  01603 483730 http://www.comms-consulting.co.uk/ 
Comms Group (UK) Ltd Unit 2 IO Centre, Barn Way, Lodge Farm, Northampton NN5 7UW  01604 589000 https://www.commsgroup.com/ 
Comms IP Ltd Senator House 2 Graham Road, London, NW4 3HF  020 8266 2800  
Comms Management Ltd Connaught House Riverside Business Park Benarth Road, Conwy North Wales, LL32 8UB  0845 450 3040 http://www.commsmanagement.co.uk/ 
Comms Network Ltd Unit 2 26 Clayton Crescent Brentford Middlesex, TW8 9PT  0844 410 8201  
Comms Provider LLP The Continuum Moderna Business Park Mytholmroyd West Yorkshire, HX7 5QQ  0845 855 0700  
Comms Recycling Ltd Unit 87 Thomas Way Lakesview International Business Park Hersden canterbury, ct34nh  01227200318  
Comms Review Ltd 37 The Marlowes, Hemel Hempstead, HP1 1LD  01582872180  
Comms Solutions Ltd 1 Sherman Road Bromley, Kent, BR1 3JH  020 8313 6684 / 6680  
Comms Solve 1a Church Lane Sarratt, Hertfordshire, WD3 6HN  0845 345 1454  
Comms Solve Support LTD 15 Bishops Grange Rugeley, Staffs, WS15 3JY  01889 574476  
Comms Solve Technologies Ltd The Barn Maylons Bury Weir Lane Buckland, SG9 0PU  01763 275 801  
Comms Source Ltd 96 Darwen Street, Blackburn, BB2 2AJ  01254 661 100  
Comms Uk Ltd Comms House Collingwood Road West Morrs, Wimborne Dorset, BH21 6QW  01202 894222 http://www.comms.uk.com/ 
Comms Unite Ltd 1A Summit Business Park Langer Road Felixstowe Suffolk, IP11 2JB  01394 799 001  
Comms Wholesale 26 park road, worthing, bn11 2as  01903231587  
Comms365 Ltd Unit 28 Cranfield Innovation Centre University Way Cranfield Bedfordshire, MK43 0BT  01234 865 880  
CommsFM Ltd 5 Royal Exchange Square, Glasgow, G1 3AH  0800 975 0700 http://commsfm.com/ 
CommsNet Solutions Ltd 60 Carberry Way, Stoke on Trent, ST3 5QU  03300 555855  
Commsplus Ltd 51 Gazelle Road, Weston-Super-Mare, North Somerset, BS24 9ES  01934 882 200 http://www.commsplus.co.uk/ 
CommsResources Number One Sherman Roiad Bromley Kent, BR1 3JH  0208 313 6680  
Comms-Sense Ltd 27 Old Gloucester Street, London, WC1N 3AX  0203 002 6076  
Commsworld Ltd Commsworld House, Peffer Industrial Estate, Peffer Place, Edinburgh EH16 4BB  0800 073 2233 http://www.commsworld.com/ 
Bellview Communications Ltd 47 Cressex Enterprise Centre Lincoln Road High Wycombe Bucks HP12 3RL  01494 538858  
Comm-Tech Services (UK) Ltd 37 Newbold Close, Dukinfield, SK16 4SP  01618500480  
Comm-Tech Telecom Solutions Ltd Communication Centre, 33 King Street Norwich, NR1 1PD  01603 218 600  
Comm-Tech Voice & Data Ltd Communications Centre, 33 King Street Norwich, NR1 1PD  01603 218 600 http://www.comm-tech.co.uk/ 
Commtech110 Ltd 9 Tegan Close Sutton, Surrey, SM2 6GS  07411 559 630  
Communicate & Control Ltd 3A St Leonards Road West St Annes, Lancashire, FY8 2PF  0845 055 8230  
Communicate Better Business Solutions 222 Manchester Road Worsely Walkden Manchester, M28 3LU  0845 273 6666  
Communicate Business Solutions Ltd 6 Hill Road Clevedon, North Somerset, BS21 7NE  01275 871 122 http://www.triangletelecom.co.uk/ 
Nine Telecom Ltd 1 Rhiw Road Colwyn Bay Conwy North Wales LL29 7TE  0845 2700 672/3  
Communications Networking Services (UK) BT Regulatory Affairs, Postpoint 204, 5 Cheapside, London EC2V 6AA  020 7356 5313  
Nine Telecom Ltd Unit 4, The Exchange 9 Station Road Stansted Mountfitchet Essex CM24 8BE  0844 854 6996  
Communications Solution Providers Ltd 35 Worrin Road Flitch Green, Dunmow, CM6 3FU  0845 127 9898  
Communications Solutions UK Ltd 5 Woodside Business Park Whitley Wood Lane, Reading, RG2 8LW  0118 920 9420  
Communications South Ltd 284 Hayling Avenue, Portsmouth Hampshire, PO3 6EF  02392 833 993  
Communication-Stem 15-16 Lower Park Row, Bristol, BS1 5BN  0845 2410000  
Communicoms Ltd Suite 1, Swan Park Business Centre Kettebrook Road Tamworth Staffordshire, B77 1AG  0845 017 8811  
Community Action Suffolk Brightspace 160 Hadleigh Road, Ipswich, IP2 0HH  01473345305  
CommunityUK.net Ltd Unit 5 Trafalgar House 223 Southampton Road Portchester, PO6 4PY  0845 287 1658  
Company Communication UK Ltd 58 Buckinham Road Weston Industrial Estate West Super Mare North Somerset, BS24 9BG  0845 4021277  
company system ltd 345 high road, London, E11 4JT  02034908180  
Compatel Ltd 6th Floor, 94 Wigmore Street, London W1U 3RF  020 7558 8132 http://www.compatel.com/ 
Compatibility Ltd Park road, Crowborough, TN6 2QX  01892665326  
Compcontrol Ltd Northumberland House 11 The Pavement Popes Lane Ealing, W5 5NG  020 8832 7407  
Complete Business Solutions (NW) Ltd 40 Devonshire Road, Bolton, BL1 4PQ  01204-848414  
Complete Computer Solutions (Derby) Ltd 65a Friar Gate, Derby, DE1 1DJ  08448844945  
Complete IP Solutions Ltd St Johns Innovation Centre Cowley Road, Cambridge, CB4 0WS  0845 512 1234  
Complete IT Ltd 7 The Courtyard Glory Park Wooburn Green Bucks, HP10 0DG  01628 552860  
Complete IT Solutions Ltd 118 High Street Swainby, Northallerton, DL6 3DG  020 7856 9000  
Complete IT Systems Gumption Business Centre Glydegate Bradford West Yorkshire, BD5 0BQ  0845 873 9631  
Complete Network Services Ltd The Ground Floor, The Portal Bridgewater Close Network 65 Business Park Burnley, BB11 5TT  0844 209 4512  
Complete Networks Ltd The New Media Center 36-42 New Tythe Street Long Eaton Nottingham, NG10 2DB  0845 070 4440  
Complete Security Services 72A Townfield Lane Frodsham, Cheshire, WA6 7RL  01928 732549  
Complete Systems Manor House Avenue Millbrook, Southampton, SO15 0LF  Unit 9  
Complete Tech Solutions (NW) Ltd 181 hartsbourne avenue, Liverpool, L25 2RX  0151 601 8323  
Complex Online Ltd 130 Handsworth Road, Sheffield, S9 4AE  0114 256 1010  
Complogic Ltd Unit 21, John Baker Close Llantarnam Business Park Cwmbran, Torfaen, NP44 3AX  0845 177 0000  
Compower 101 Mercer street Newton-le-Willows, Merseyside, WA12 9TL  01925 594 040  
Comprehensive Computer Supplies Ltd 165, Moorside The Moor, Coleorton, LE67 8GD  0845058 9803  
Compucare Computer Servicing Ltd Petitor House Nicholson Road Torquay Devon, TQ2 7TD  01626 324 029  
Compuserve Ltd European Business Park Taylors Lane, Oldbury, B69 2BN  03330069203  
Computacall Ltd THB House 12 Raymonds Close Welwyn Garden City Hertfordshire, AL7 4TH  01707 351380  
Computaccount (UK) Ltd 11 High Street Harborne, Birmingham, B17 9NT  0121 428 1111  
Computations 16 Grove Orchard, Highworth, SN6 7LB  01793861927  
Computer & Network Consultants Ltd Unit 9 Riverside Business Centre Brighton Road Shoreham-By-Sea West Sussex, BN43 6RE  01273 384 100  
Computer and Communications Co Ltd Stirling House Denny End Road, Waterbeach, CB259PB  01223427700  
Computer Cavern Westhorpe Farm Westhorpe Farm Lane Marlow Road Little Marlow, SL73RQ  01628891101  
Computer Communications & Network Solutions Ltd Letchford House Headstone Lane Harrow Middx, HA3 6PE  0870 436 1821  
Computer Depot Ltd 16 Robert Templeton Drive, Cambuslang Glasgow, G72 7NE  0141 439 1613  
Computer Marketing Services Software Ltd 10 Saxon House Upminster Trading Park Warley Street Upminster, Essex, RM14 3PJ  01708 640382  
Computer Network Solutions (Scotland) Ltd 9-11 Maritime Street, Edinburgh, EH6 6SB  08701186900  
Computer Smart LTD Unit 10 Creamery Ind Est Kenlis Road Preston, PR3 1GD  0845 508 2210  
Computer Software & Peripherals Ltd 41 Market Street, Watford, WD18 0PN  01923447711  
Computer Solutions 136 Cavendish Street Barrow-in-Furness, Cumbria, LA14 1DJ  0845 6012831  
Computer Solutions Cymru Ltd 18 Wynnstay Road, Colwyn Bay, LL29 8NB  01492535000 http://www.compsoluk.com/ 
Computer Strategies Ltd 4 Saxton Parklands, Guildford, GU2 9JX  01483 238260  
Computer Supply Lines Ltd 104 Lancaster Road, New Barnet, EN4 8AL  02084415577  
Computer Surgeon Ltd 4 Mere Close, Chichester, PO20 8AG  01243887434  
Computer Systems Solutions Ltd Alacrity Bowl Road, Ashford, TN27 0NH  01622863272  
Computer Systems UK Ltd 15 Southmill Trading Centre Southmill Road Bishops Stortford Herts, CM23 3DY  0870 3866 222  
Computercentric Ltd Anchor House Anchor Road Aldridge Walsall, WS9 8PW  01922 324010  
ComputerDr 2 Gorefeld, Bishops Stortford, CM22 6TL  01279 871719  
Computerease Ltd 4 Bramble Street, Derby, DE1 1HU  0870 444 5414  
Computer-eyez (south) Ltd Enterprise Centre Denton Island Newhaven Easy Sussex, BN9 9BA  01273 806211  
Computerised Business Systems Ltd 554-556 Barton Road Stretford Manchester, M32 9TD  0161 755 9441  
Computerman UK Ltd T-mex House Bircholt Road, Maidstone, ME15 9XY  01622677677  
Computers Madeasy Ltd St.Johns Innovation Centre Cowley Road, Cambridge, CB4 0WS  01223850800  
Computers365 Ltd Bundorin Lea Highbury Road Weston-super-Mare North Somerset, BS23 2DR  01934 310 010  
Computersmiths Ltd 3 Fishweir Fields Bridport, Dorset, DT6 3HE  020 3327 4049  
Computing Information Systems Ltd Unit 1 RAC Estate Park Road, Faringdon, SN7 7BP  01367 700 555  
Computors Ltd Creative Industries Centre Wolverhampton Science Park Glaisher Wolverhampton, WV10 9TG  01902 203001  
CompuWeb Communications Services Ltd Bowden Drive Beeston, Nottingham, NG9 2JY  01157401234  
Coms.Com Ltd Creditors voluntary liquidation 11 April 2016   
Comsave Ltd Network House 2 Connaught Avenue, London, E4 7AA  0844 8114455  
ComShop Ltd 68 York Road Peterlee, County Durham, SR8 2DP  0191 586 3710  
Comspec IT Solutions Ltd Comspec House Meadland Grove, Bolton, BL1 8TQ  01204 898 055  
Comtact Ltd 46-48 East Smithfield, London, E1W 1AW  08452 757575 http://www.comtact.co.uk/ 
Comtec Business Equipment Ltd    
Comtec Enterprises Ltd Comtec House 46a Albert Road North Reigate Surrey, RH2 9EL  0845 899 1400  
Comtec Telecom and Data Ltd    
Comtec Telecom Lines Ltd Comtec House 1 Church Street, Merthyr Tydfil, CF47 0BA  01685 354550  
Comtech Consultancy Ltd County House Beaufort Road Plasmarl Ind Est Swansea, SA6 8JG  01792709249  
Comtxt Ltd Cavell House Stannard Place St Crispins Road Norwich, NR3 1YE  01603 821 013  
Comverged Ltd Barclays House Gatehouse Way, Aylesbury, HP19 8DB  01296343430  
Comvista Ltd Suite Six Buko Tower Dalton Road Glenrothes Fife, KY6 2SS  0845 130 2585  
ComWales Ltd 19 Market Street, Pontypridd South Wales, CF37 2ST  01443 403333  
Comwest Computer Services Ltd Comwest, 30 Lynx Crescent, Weston Industrial Estate, Weston Super Mare, BS24 9BP  0844 2252165  
Comxo TRIDrading Ltd Pippin Grove 628 London Road Colnbrook Berkshire, SL3 8QH  01753 710 430  
Concept Coders 105B The Big Peg 120 Vyse Street Hockley Birmingham, B18 6NF  0121 638 0000  
Concept IT Services Ltd F8-F9 Tanfield Lea Business Centre, Stanley, DG9 9DB  08458382248  
Conceptex Ltd 51 Waterloo Road, Wolverhampton, WV1 4QJ  01902711777  
Conceptual Management Ltd 7 Stratford Place, London, W1C 1AY  020 3574 4042  
Conceptunet Ltd Unit 1 Flockton Park Holbrook Avenue Holbrook Industrial Estate Sheffield, S20 3FF  0114 276 4960  
Concert Networks Ltd 3 Tabley Court Moss Lane Knutsford Cheshire, WA16 0PL  01565 781 070 http://www.concertnetworks.co.uk/ 
Concise IP Ltd Newlands, The Fen, Fenstanton, Cambridgeshire, PE28 9JT  0844 848 7447  
Concise IT Ltd No2 Royal Court Gadbrook Park Northwich Cheshire, CW9 7UT  01606 336200 http://www.conciseit.co.uk/ 
Concise Telecoms Ltd Cygnet Court Hawthorn Street Wilmslow Cheshire, SK3 8UB  01625 416218 http://www.concisetelecoms.co.uk/ 
Concorde I Ltd Unit 4 Merlin Business Park, Exeter Airport, Exeter, EX5 2UL  01392 362088  
Concorde Informatics Technology Group Ltd Concorde House Wakefield Road, Ossett, WF5 9JS  08432480000  
Condie IT Solutions LTD 10 Abbey Park Place, Dunfermline, KY12 7NR  0844 247 1144  
Conduit Enterprises Ltd Sterling House, Malthouse Avenue, Cardiff Gate Business Park, Cardiff CF23 8RA  029 2054 8000 http://www.118118.com/ 
Conduit Networks Ltd 4th Floor 22 Buckingham Gate, London, SW1E 6LB  020 7100 5522  
Conecting London Ltd 129 Great Suffolk Street, London, SE1 0PP  020 74071335  
Conexion Communications Ltd The Coach House 1 Manor Courtyard Aston Sandford Bucks, HP17 8JB  01844 296 530  
Confabulate    
Config Computer Services Ltd 1B Fareham Park Road Fareham, Hampshire, PO15 6LA  01329 310451  
Connal & Co LTD 1 Mackenzie Place, Falkirk, FK1 5UJ  01324631927  
Connate Ltd 52 Norman Road, London, E11 4PX  03333352020  
Connaught Communications Systems Ltd 14 Systems House Reddicap Trading Estate, Sutton Coldfield, Birmingham B75 7BU  0121 311 1010  
Connaught Communication Systems Ltd Systems House, The Courtyard, Reddicap Trading Estate, Sutton Coldfield, Birmingham B75 7BU  0121 311 1010 http://www.connaughtltd.co.uk/ 
Connaught Communications Systems Ltd 14 Systems House Reddicap Trading Estate, Sutton Coldfield, Birmingham, B75 7BU  0121 311 1010  
Connect Business Systems Telecommunications Ltd Connect House Waterside Stoke Prior Bromsgrove, B60 4FD  01527 556363  
Connect Communication Solutions LTD 355 - 367 Lisburn Road, Belfast, BT9 7EP  080 058 2855  
Connect Communications Group Ltd Hertford House 1 Cranwood Street, London, EC1V 9QP  020 7950 3200  
Connect Communications UK Ltd Stobo House Midlothian Innovation Centre, Roslin, EH25 9RE  01314407777  
Connect It Communications Ltd Innovation Centre Medway Maidstone Road Chatham, Kent, ME5 9FD  0845 688 5122  
Connect Systems LLP The Island Moor Road, Chesham, HP5 1NZ  01494 810 900  
Connect Telecom UK Ltd 1 The Green, Richmond, Middx TW9 1PL  020 8228 1832 http://www.call18866.co.uk/ 
Connect The World Ltd Suite 12 Towerside 148 Wapping High Street Wapping London, E1W 3PF  0870 174 8575  
Connected World Communications Ltd 6 Webster Court, Warrington, WA5 8WD  01925 467 500  
Connective Technologies 12 Marlborough Road, Sutton, SM1 2PF  020 3468 7883  
Connexin Ltd 15 The Elms Thicket Road Houghton Huntingdon, Cambridgeshire, PE28 2FQ  020 7148 8777 http://www.connexin.co.uk/ 
Connexinet LTD 5 & 7 Station Hill Oakengates, Telford, TF2 9AA  01952 617535  
Connexion Ltd 2 Cutbush Court Danehill Lower Earley Reading, RG6 4UW  01189209600  
Connexions (Group) Ltd Marconi Road Burgh Road Ind Est Carlisle Cumbria, CA2 7NA  01228 514 369 http://www.connexionsgroup.co.uk/ 
Connexions 4 London 22 St Peters Road Bournemouth, Dorset, BH1 2LE  01202 299799  
Connexis Ltd 5 Pearson Road Anchorage Aveneue Shrewsbury Business Park Telford, TF2 9TX  01952528000  
Connexus Networks Ltd Suite 2 Sperry House Bonds Mill Stonehouse Gloucestershire, GL10 3RF  0870 607 2121 http://www.connexusnetworks.co.uk/ 
Connx Ltd 42 Lytton Road, New Barnet, EN5 5BY  07956654220  
Consega Ltd 7 Beechwood Road West Moors, Dorset, BH22 0BN  01202 873783 http://www.consega.com/ 
Consider IT Ltd 27 Queen Charlotte Street, Edinburgh, EH6 6AX  0131 510 0110  
Consolidated Telecommunications Ltd The Octagon Middleborough, Colchester, CO1 1TG  0844 892 1498  
Consorte UK Ltd Pallinghurst Guildford Road Rudgwick West Sussex, RH12 3BQ  01403 824018  
Constant Technology Unit 18 Building G1 Dace Rd London, E3 2NG  020 7193 0408  
Consulting Networks Ltd Customer Services Team 40 March Road Wimblington Cambridgeshire, PE15 0RN  0870 036 1234  
Contact Centre Communications Ltd Bolney Place Cowfold Road, Bolney, West Sussex, RH17 5QT  01444 880 301  
Contact Scotland Ltd    
Contact Systems Ltd Atlantic Business Centre,, Atlantic Street Altrincham Manchester, WA14 5NQ  01618041500  
Contedia Ltd 35 Southgate, Pontefract, WF8 1LN  0845 388 0845  
Content Guru Ltd Eastern Road, Bracknell RG12 2UP  01344 852350 http://www.contentguru.com/ 
Continuity Assured Ltd The Springboard Centre, Mantle Lane, Coalville, Leicestershire, LE67 3DW  0800 8404142 http://www.continuityassured.co.uk 
Continum Ltd Mossfield House Chesham Fold Road, Bury, BL9 6JZ  0161 885 2000  
Control CCTV Ltd Unit CG1A Clarence Mill Bollington Macclesfield, SK10 5JZ  0333 101 4410  
Converga Ltd Spring Vale Works, Elland Road Brookfoot Brighouse West Yorkshire, HD6 2RN  01484 818 354  
Converged Business Solutions Ltd Oakwood House Taylor Business Park, Warrington, WA3 6BH  01625 800170  
Converged Comms 2 Kindale Road Prenton, Wirral, CH43 3AT  0151 601 5377  
Converged Communication Solutions Ltd 35 Huntly Street, Aberdeen, AB10 1TJ  0800 8620 999  
Converged Tek Ltd Carlton House 19 West Street, London, KT187RL  03330063322  
Converged Voice Solutions 20 Eden Way Winnersh Wokingham Berkshire, RG41 5PQ  0870 4050115  
Converge-IT.net Ltd Barnett House 53 Fountain Street, Manchester, M2 2AN  0870 770 0790  
Convergence (Group Solutions) Ltd 2 Lammas Centre Budbrooke Road Budbrooke Industrial Estate Warwick, CV34 5WQ  0845 270 2709  
Convergence Communications Ltd 21 & 22 Hall Barn Road, Isleham Cambridgeshire, CB7 5RD  08700 332400  
Convergence Group Networks Ltd One Cranmore Cranmore Drive Shirley Solihull, B90 4RZ  0845 270 2709  
Convergent Networks Ltd    
Converse Business Solutions Ltd Navson House, Crabtree Office Village Eversley Way, Egham, TW20 8RY  08458739900  
Converse Telecom Ltd Old Bank House 57 Church Street Staines Middx, TW18 4XS  0845 8739900  
Converse4u Ltd 25 John Shelton Drive, Coventry, CV6 4PE  07980076224  
Conxserv Ltd 9B Arun Business Park, Bognor Regis, PO22 9SX  03333441520  
Cooper Covell Communications Ltd Unit 3a Westpoint 39 - 40 Warple Way, London, W3 0RG  020 7501 6580  
Copiertec Ltd 3 browells lane, Feltham, Tw13 7eq  08447362401  
Copytel Ltd 5 Pasture Drive Whitwood Castleford West Yorkshire, WF10 5TL  01977 512 330  
Cor Solutions Ltd 68a Hermitage Road, Hitchin, SG5 1DB  01462 434082  
Coralbridge Ltd 13-15 Hunslet Road, Leeds LS10 1JQ  0113 320 3040 http://aql.com/ 
Corbridge Computing Ltd 1 Hill Street, Corbridge, NE45 5AA  01434633200  
Corcra Ltd 1 Elder House Park West, Chester, CH1 4RL  03309000900  
Core Communication Services Ltd 6–7 Ludgate Square, London EC4M 7AS  0808 130 0808 http://www.coretel.co.uk/ 
Core Digital 22 Mill Road Avenue, Littlehampton, BN16 4HS  01903 786 117  
Core Telecom Ltd Mazhar House, 48 Bradford Road, Stanningley, Leeds LS28 6DD  0844 504 0000 http://www.coretelecom.co.uk/ 
Core Telecommunications International Ltd 18 Edward Square, Bloomfield Avenue, Dublin 4. Ireland  020 3171 1777 http://www.coretelinternational.com/ 
Coretek Ltd 7 Gardeners Business Park Sherfield English Road Plaitford Hampshire, SO51 6EJ  01794 325 920  
Coretel Ltd Unit 2 Woodsie Mews Clayton Wood Close, Leeds, LS16 6QE  0800 8030 747  
Coretx Communications Ltd Rutland House 44 Masons Hill, Bromley BR2 9JG   
Coretx Protect Ltd Kings Reach, 38-50 Kings Road, Reading RG1 3AA  0118 338 3000 http://www.coretx.com/ 
Corgi Telecoms Ltd Tannery Court Tanners Lane Warrington Cheshire, WA2 7NR  01925 401 702  
Corinthian Technical Solutions Co Ltd Southern Counties House 27-43 Ifield Road Crawley West Sussex, RH11 7AT  01293 434224  
CorNetworks Ltd Westcountry House Victoria Square Bodmin Cornwall, PL31 1EB  01208 220010  
Corporate Communications Europe Ltd 42 Old Broad St, London EC2N 1HQ  020 7920 2000  
Corporate Finance Associates Ltd 10 New Road Raye, Braintree, CM77 6TG  01376333823  
Corporate Information & Communication Technology Ltd 31 Tileyard Studios Tileyard Road, London, N7 9AH  020 7503 3000  
Corporate Management Telecom Ltd 4 Oak Park Hunsdon Nr Ware Herts, SG12 8QA  08707 526 050  
Corporate Mobile Communications Ltd 11 - 13 Wharfside Fenny Stratford, Milton Keynes, MK2 2AZ  01908 369 010  
Corporate Mobile Connections Ltd Moorate Point, Moorgate Road, Liverpool, L33 7XW  015154508058  
Correct Group Ltd 10-14 Interlink House 73A Maygrove Road West Hampstead London, NW6 2EG  020 7372 4106  
Correllation Ltd Oak House 36 The Street Rayne Essex, CM77 6RR  01376322985  
Cortex Communications Whitehall Emine Way Arrington, Cambridgeshire, SG8 0AG  0844 858 9223  
Cotswold Community Networks Ltd Unit G Donkeywell Farm, Cirencester, GL7 5DH  08448040484 http://www.cotswoldwireless.co.uk/ 
Cotswold Connect Ltd 1 St Aidans Close, Cheltenham, GL51 0HL  08002702007  
Cotswold PC 14 Oddfellows Terrace Moreton In Marsh, Gloucestershire, GL56 0HA  01608 812 386  
Country Connect Ltd 52a Westgate, Nottinghamshire, NG25 0JX  01633 530519  
Country Kit Ltd Audley House New Road Moreton Congleton, CW12 4RX  01260 299451  
Countrywide Farmers Energy Utilities Dept Defford Earls Croome Worcs, WR8 9DF  01386 757 333  
County Broadband Ltd Old Bourchiers Hall New Road Aldham Colchester, CO6 3QU  01376562002 http://www.countybroadband.co.uk/ 
County Consultancy Services Ltd Innovation Centre University Way, Cranfield, MK43 0BT  01908 410041  
Covlink (Uk) Ltd 1 Goldsmith Ave, Warwick, CV346JA  01926495416  
Covue IT Ltd Unit 6, Bybow Farm, Dartford, DA2 7ER  02071002244  
Cowley Computer Solutions Keepers House Kingscroft Lane Havant Hampshire, PO9 3JE  0239 248 6956  
CPW IT Holy Trinity Rectory Seafield Avenue, Keith, AB55 5BS  01463896304  
Cranberry Communications Ltd 78 Chapel Street Kings Lynn, Norfolk, PE30 1EF  01553 666 111  
Crazy Pages 125 Holymoor road Holymoorside, Chesterfield, s42 7dr  01246384063  
Crazy Web Service Ltd 15 Lakewood Drive Barlaston, Stoke on Trent, ST12 9BH  01782499293  
Crea8ive Network Solutions Ltd Unit 1b Roundhouse Court Southrings Business Park Bamber Bridge Preston, Lancashire, PR5 6DA  01772 558868  
Create IT Ltd Unit 5 Thatcham Business Village Colthrop Way Thatcham, RG19 4LW  01635277500  
Creative Networks Ltd Regal House Miall Street, Rochdale, OL11 1HY  01706 396496  
Creative Telecoms Ltd Studio 229 Great Gulidford Business Square 30 Great Guildford Street London, SE1 0HS  0871 222 7150  
Creativezones Solutions Ltd Victoria Embankment, London, EC4Y 0HJ  02073776509  
Creed Management Ltd 43 Vicarage Lane, London, E15 4HG  02081230862  
Creed Travel Ltd 466 Cranbrook Road, Essex, IG2 6LE  02030869730  
Crimzon Communications Ltd The Railway Offices 36 King Street Sileby Loughborough, LE12 7NA  01509 815 398  
CritchCorp Computers Ltd 11 Murray Street Camden, London, NW1 9RE  0800 612 1029  
Criterion Systems Ltd 116 Wellington Street Stockport, Cheshire, SK1 1YH  0161 429 4910  
Crossbill Telecoms Ltd Cash's Business Centre 228 Widdrington Road, Coventry, CV1 4PB  03442596020  
Crosscom Ltd 3 Brook House Old Wool Lane, Cheadle, SK8 2PE  0161 491 5571  
Crown Telecom Solutions Ltd The Oil Centre Heap Bridge, Bury, BL9 7HY  08444 150 140 http://www.crowntelecom.co.uk/ 
Crowthorne Associates Ltd Wigglesworth House 69 Southwark Bridge Road, London, SE1 9HH  0845 634 7000  
CRU Technologies Ltd 1 Station Hill Oakengates, Telford, TF2 9AA  03331 017 100  
Cryle Trading Ltd 2 Stanley Cottages London Road Hartley Wintney Hants, RG27 8RT  01252 843 228  
Crystal Clear Telecom Ltd Unit 5, 6 North Road, Poole, BH14 0LY  01202941040  
Crystaline Communications Ltd Boston House Business Centre 69-75 Boston Manor Road Brentford Middlesex, TW8 9JJ  0844 846 4222  
Crystaline Solutions Ltd 69-75 Boston Manor House Brentford, Middlessex, TW8 9JJ  0844 8464 222  
CS Malbrook Unit 7 Ancells Court Rye Close Fleet, GU51 2UY  020 3478 3141  
CSC IT Ltd 19 Meridian Way Norwich, Norfolk, NR7 0TA  01603 431 200  
CSCM Ltd 1B Swallowfield Courtyard Wolverhampton Road, Oldbury, B69 2JG  08431 668866  
CSD Ltd 10 New Road Rayne Braintree Essex, CM77 6TG  01376 333820  
CSD Computer Solutions Ltd 22 Cambridge Street Wolverton, Milton Keynes, MK12 5AJ  01908 311336  
CSE Vitman Ltd 57 Atlantic Business Centre Atlantic Street Altrincham Cheshire, WA14 5NQ  0844 800 1286  
CSG Computer Services Ltd CSG House, Bridgend, CF32 9SQ  01656725505  
CSL Dualcom Ltd Salamander Quay West Park Lane Harefield Middlesex, UB9 6NZ  01895 474474  
CSL Group Services Ltd 17b, Retford, DN227PX  01777507578  
CSN Solutions Ltd P13A Photographic Block, Cheltenham, GL516PN  01242571775  
CSQUARED Systems Ltd The Walled Garden Office Eleveden Estate Eleveden Norfolk, IP24 3TJ  01842 890001  
CSS Computers Ltd 43 North Quay Great Yarmouth, Norfolk, NR30 1JE  01493 334 800  
Complete Security Services 72a Townfield Lane Frodsham, WA6 7RL  01928 444100 http://csstelecoms.co.uk/ 
Cst Int Ltd 1 St Marys Place, Bury, BL9 0DZ  +443302000200  
CT Networks Ltd 3 The Maltings Wetmore Road Burton-on-Trent Staffordshire, DE14 1SF  01283 560 500  
Ctalk Ltd Darwin House Lakhpur Court Staffordshire Technology Park Stafford, ST18 0FX  01785 336 666  
CTC Professional Systems 5 The Woodlands, Esher, KT10 8DD  02076177502  
CTel Ltd County House Beaufort Road Plasmarl Ind Est Swansea, SA6 8JG  01792709249  
CTMG Ltd 68 Brackendale, Potters Bar, EN6 2LX  01707665511  
CTR Communications Ltd 10 Westprink Crescent, Stoke on Trent, ST3 5JB  0333 456 0314  
Cubit Technology Ltd 115 High Holborn, London, WC1V 6JJ  02035350680  
Culminet 30 Ennerdale Washington, Sunderland, NE37 1BW  07983748473  
Cu-St Ltd 27 Old Gloucester Street, London, WC1N 3AX  01915514848  
Custard Technical Services Ltd Goldcrest Lodge, Hexgreave Hall Farnsfield, Nottingham, NG228LS  01623687650  
Custodiandc Ltd Vinters Business Park New Cut Road Maidstone Kent, ME14 5NZ  01622 230382  
Custom Computer Services (Wales) Ltd Priory House Beignon Close, Cardiff, CF24 5PB  03330144544  
Custom Networks Ltd Greencroft Three Pears Road Merrow Guildford, GU1 2XU  01306 734 120  
Customer Care Company Ltd 40 Kay Brow Ramsbottom, Lancashire, BL0 9AY  0844 811 8900 http://www.customercaregroup.co.uk/ 
Cutec Ltd 20 Branson Court, Plymouth, PL7 2WU  01752 231760  
cwc tele.com Ltd Turnpike House 1208/1210 London Road Leigh-on-Sea, SS9 2UA  01702 460200  
cwl systems Ltd Progress house Alington Road, St Neots, PE19 6WL  01480 217777  
CWNETWORKS Ltd    
Cyan Solutions Ltd Unit 14b The Briars Waterberry Drive Waterlooville Hampshire, PO7 7YH  0845 894 9685  
Cyara Solutions 5 Merchant Square Paddington, London, W2 1AY  +447412780896  
Cyber Ware Ltd Litton House Saville Road, Peterborough, PE3 7PR  01733 646079  
Cyberscream Ltd 3 Pallas Road, Hemel Hempstead, HP2 5NR  01442 256722  
Cybertill Ltd Clock Tower Court Knowsley Park, Knowsley, L34 4AQ  08448551600  
Cygnet Telecom Ltd Warwick House 41 Spring Road Hall Green Birmingham, B11 3EA  0870 787 4710  
Cygnet Total Communications Ltd 10 Bailey Court Colburn Business Park Catterick Garrison North Yorkshire, DL9 4QL  01748 835 599  
Cymru 1 Ltd Cymru 1 Limited P.O.Box 30 Porthmadog Gwynedd, LL49 9ZR  08000 112244  
CYTA UK Ltd 8-10 Ashfield Parade, London, N14 5AB  0800 036 0078  
Cyta (UK) Ltd 56A Haverstock Hill, London NW3 2BH  020 7428 1000 http://www.cytauk.com/ 
Cytringan Ltd Unit 11 Enterprise Road Raunds Northamptonshire, NN9 6JE  0333 101700  
CzWorks Ltd 19 Belper Street, Blackburn, BB1 5HA  01254 694 400  
D & G Consultancy Services Ltd 18-19 Griffin House, Birmingham, B3 1DW  0800 088 4330  
D K Networks 23 Woodman Avenue Whitstable, Kent, CT5 2RB  01227 200 020  
D R Communications Ltd 10 Kingsclere Business Park Kingsclere Newbury Berkshire, RG20 4SW  01256 895895  
D&D Network Services Ltd County House St Marys Street, Worcester, WR1 1HB  0845 299 7828  
D2 Network Associates Ltd Lymedale Business Center Hooters Hall Road, Newcastle Under Lyme, ST5 9QF  03301595969  
D2See    
dabs.com plc    
Daffodil IT Ltd 2 Queens Road WFI House, Sheffield, S2 4DG  0845 200 185  
DAINA Systems Ltd 5 Cornfield Terrace, Eastbourne, BN21 4NN  0333 344 0507  
Daisy Group PLC Daisy House, Suite 1, Linred Road Business Park, Nelson, Lancs BB9 5SR  0845 450 4520 https://daisygroup.com/ 
Daisy Networks Ltd 3A Alexander House, Castlereagh Business Park, 478 Castlereagh Road, Berlfast BT5 6BQ  0845 450 4520 https://daisygroup.com/ 
Daisy Wholesale Ltd 4th Floor Easleigh House Upper Market Street Eastleigh, SO50 9RD  0330 100 1233  
Daisy Worldwide Ltd 31 Commerce Road Lynch Wood, Peterborough, PE2 6LR  0333 006 6332  
Dalecom Unit 1C Toll Bar Workshops Station Road Sedbergh, Cumbria, LA10 5HA  01539 622 300  
Dalton Net Service Ltd 417a Birmingham Road Sutton Coldfield, Birmingham, B72 1AU  01212683320  
Daly Telecom Ltd The Point Granite Way Mountsorrel Leicester, LE12 7TZ  01509 410 410  
Dalycom The Point, Granite Way, Mountsorrel, Leicestershire LE12 7TZ  01509 410410 http://www.dalycom.uk.com/ 
DAM Telecommunications Ltd DAMtel Telecommunications Ltd DAMtel House 18 Soho Square London, W1D 3QL  0871 995 5222  
Damovo UK Ltd Broadlands Business Park Langhurstwood Road Horsham West Sussex, RH12 4QP  01403 244000  
Danish Telecom Ltd 123 Ashburnham Road, Luton, LU1 1JW  01582213157 http://www.danishtelecom.com/ 
Danixa Ltd 7 Joydens Wood Road, Bexley Kent, DA5 2HS  020 7871 2620  
Danoli Solutions Ltd 56 New Court Way, Ormskirk, L39 2YT  01695 576387  
Dantec Enterprises    
Dantech IT Solutions Ltd 32 Robinia Road, Broxbourne, EN10 6GE  07866 591234  
Daotec Ltd 145-157 St John Street, London EC1V 4PY  020 7037 7777 http://www.daotec.com/ 
Dark Group Ltd St Lawrence, 98 Southleigh Road, Havant, PO9 2PR  01428 404040 https://www.dg.uk/ 
Darwin Itc Ltd Unit 6, Yeomanry Road, Battlefield Enterprise Park, Shrewsbury, SY1 3EH  01743303290  
Dash Telecom Ltd 95 Wilton Road, Suite 3, London SW1V 1BZ  020 3318 4204  
Dasuni Ltd Boundry House Boston Road, London, W7 2QE  020 3393 6186  
Data & Asset Managers Ltd Hamilton House 3 Norwich Road, North Walsham, NR28 9JP  01692403060  
Data Computer Services 27 Portobello High Street, Edinburgh, EH151DE  01316571666  
Data Consulting Services Ltd Morgans Orchard Whitecroft Lane, Byfield, NN11 6UW  01905 388 831  
Data Management Associates Ltd Systems House Unit 13 Lower Trostre Llanelli Carms, SA15 2EA  01554 741 144  
Data medik Systems Ltd 43 Ingham Road Bawtry, Doncaster, DN10 6NN  07931182091  
Data One Ltd Unit 12, Technology Centre Epinal Way, Loughborough, LE113GE  01509215662  
Data Pacific Ltd 10 Wilkinson Court Wilkinson Business Park, Wrexham, LL13 9AE  01987 666900  
Data Technical (Glasgow) ltd 2371 Paisley Road West, Glasgow, G52 3QB  0141 530 7664 / 08456 341 437  
Data_Net Services 57A Noakes Avenue Great Baddow, Chelmsford, CM2 8EW  01245 478578  
Database for Business Ltd Talavera Court Darnell Way Moulton Park Northampton, NN3 6RW  0870 442 4924  
Databax Ltd Delta House Wavell Road, Manchester, M22 5QZ  +448445437500  
Datablox Internet Ltd Crown Buildings Halifax Road, Ripponden, HX6 4DA  01422 825 050  
Datacentres Ltd Quay House Admirals Way, Docklands, E14 9XG  0845 862 0919  
DataConnectivity Ltd Sheration House Castle Park, Cambridge, CB3 0AX  01223750000  
Datadam Ltd 1 Abbey Street, Eynsham, OX29 4TB  01865 920 103  
Datafish UK Ltd 68 Queen Street, Sheffield, S1 1WR  01142391849  
Dataflex Design Communications    
dataIP Ltd Austin House 151 Eccleshall Road Stafford Staffordshire, ST16 1PD  01785 609 520  
Datakom Ltd 60 Commercial Street Kenfig Hill Bridgend Industrial Estate Bridgend, CF33 6DL  0845 678 9884 http://www.datakom.co.uk/ 
Datanet Installation Services UK Ltd Unit 6 Milbanke Way Bracknell, Berks, RG12 1RP  01344 354 949  
Datanet.Co.Uk Ltd Aspen House Barley Way Ancells Business Park, Fleet Hampshire, GU51 2UT  0845 130 6010 http://www.datanet.co.uk/ 
Datanetex Ltd Unit 32, The Wincombe Centre Windcombe Business Park Shaftesbury Dorset, SP7 9QJ  01722 440660  
Dataphone Services Ltd Riverside House Southend Road, Woodford Green, IG8 8HQ  020 8550 8844 http://www.dataphone.co.uk/ 
Dataquest UK Ltd 87A Worship Street, London, EC2A 2BE  020 7392 8886  
DataSafe Services Ltd United House North Road, London, N7 9DP  02076072262  
Datasharp East Anglia Ltd 443 Earlham Rd, NORWICH, NR4 7HL  01603452999  
Datasharp UK Ltd Woodland Court Truro Business Park, Truro, Cornwall, TR4 9NH  01872 266 666 http://www.datasharp.co.uk/ 
Datatech UK LTD Prospect House Fishing Line Road Redditch Worcestershire, B97 6EW  01200 400 600  
Datatel Networks Ltd 19 Peel Road, Douglas Isle of Man, IM1 4LS  0870 333 4947 http://www.datatel-networks.com/ 
datatel solutions ltd 10 lockside office park, preston, pr22ys  01772910400  
Datavoice Ltd Bynea House Bynea Business Park, Llanelli, SA14 9SU  0870 870 5097  
DataVox Solutions Ltd Saddleworth Business Centre, Delph Oldham, OL3 5DF  01457 820055  
Datcom LLP Lynx House Elmer St South Grantham Lincs, NG31 6QY  0845 521 2405  
Datec Business Systems Ltd Martyn House Shenstone Drive Aldridge Walsall, WS9 8PT  01922 455 692  
Datel Business Systems Ltd Penmaen House London Road Ashington West Sussex, RH20 3JR  01903 705 900  
Datrix Ltd 29 Boundary Street, London, E2 7JQ  020 7490800  
Datum Technology Ltd Suite 2, Focal House, Ensor Way, New Mills, SK22 4NQ  01663898091  
Davelarin Resources Ltd London Road, Leicester, LE2 0PF  01163500173  
David Allen IT Ltd Dalmar House Barras Lane Estate Dalston Carlisle, Cumbria, CA5 7NY  01228 711 888  
David Brown Consulting Ltd Pinnacle House Suite 17 Mill Road Enterprise Park Linlithgow, EH49 7SF  01506 848848  
David Buckingham PO Box 1185, Spalding, PE11 2SN  07904 129533  
David Morris Higher Coombe Farm Coombe Lane, Teignmouth, TQ14 9EY  01626 776042  
Daviker Ltd City View House Union Street Ardwick Manchester, M12 4JF  0845 250 8060  
Davitek Willow Garth Back Lane Hemingbrough Selby, YO8 6QP  01757638013  
DB Comms   http://www.mydbcomms.com/ 
DBL Software Ltd PO Box 2235, Salisbury, SP2 2FE  01980 863505  
DCFM Telecom Ltd DCFM Telecom Ltd 1 Bridge Street, Boston, PE21 8QF  01205 310644  
Diazone Computer Services C/o 69 Lane Field Road Bideford, Devon EX39 3RD  07950 371041  
DCS Voice & Vision Ltd Unit 7 Titan Court Laporte Way Luton Bedfordshire, LU4 8EF  0870 871 7373  
DD.PC.Services. 2 Talbot Road Margate, Kent, CT9 2AR  01843 228904  
Deans Computer Services PLC Boston Lodge High Street Boston Spa Wetherby, LS23 6EA  01937 541411  
Decorum Connect    
dEdge Telecom and Technologies Ltd Suite 2, Stafford Court 178 Stafford Street, Wolverhampton, WV1 1NA  03302000188  
Deep Blue Networks Marston House Walkers Court Audby Lane Wetherby, West Yorkshire, LS22 7FD  0333 240 9100 http://www.deepbluetelecom.co.uk/ 
Deep Blue Solutions Ltd 28 Waterer Gardens Tadworth, Surrey, KT20 5PB  01737 370 484  
Deepdale Technical Services Ltd 33a Scalby Road Scarborough, North Yorkshire, YO12 5PZ  01723 370 689  
Deepsense Ltd 33 Longman Road, Barnsley, S70 2LD  (0845) 3313333  
deeserve Ltd 2 Cedars Office Park Butt Lane, Normanton on Soar, LE12 5EE  01509808586  
Defaultroute   http://www.defaultroute.co.uk/ 
Define Telecommunications and Data Ltd Stirling Way Borehamwood, Borehamwood, WD6, 2HP  0208 736 0444  
Definitive Networks Ltd The Beacon Llanelli Gate Dafen Carmarthenshire, SA14 8LQ  01554 253 003  
Deliverability Ltd 1a Matthews Yard East Croydon, London, CR0 1FF  +442082332314  
Dellmont Sarl PO Box 201, L-2012 Luxembourg  +35 220 881 791 https://www.dellmont.com/ 
Delta Comtech LTD Artillery House Heapy Street, Macclesfield, SK11 7JB  0844 412 8102  
Delta Sound Inc (UK) Ltd Unit C, Imber Court Trading Estate Orchard Lane, Molesey, KT8 0BY  020 8339 3869  
Delta2 Communications unit 1 , woodlands farm, kirk deighton, ls224ej  07984527713  
Deltabit IT 8 Lloyds Court Manor Royal, Crawley, RH10 9QU  02070847400  
Demon 322 Regents Park Road, London N3 2QQ  0800 027 3737 http://demon.net/ 
Dental IT 2 The Barn Hathersage Hall Business Centre Hathersage, S32 1BB  01433 377 977  
Denwa Ltd Lancashire Digital Technology Centre Bancroft Road Burnley Lancashire, BB10 2TP  01282 471857/0845 0761001  
Derek Law Associates Stonebridge House Main Road, Hawkwell, SS54JH  01702810060  
Derek Wildman 5 St Monica's Drive Bootle, Liverpool, L30 2RN  07913349102  
Design and Management Systems Highwood Old Dartford Road, Farningham, DA4 0EB  01322 420140  
Design Communications (UK) Ltd Freedom House 5 Abbeyfields, Bury St Edmunds, IP33 1AQ  01787 249 444 http://www.designcom.co.uk/ 
Design IT Solutions Ltd High Edge Court Heage Belper Derbyshire, DE56 2BW  01252 360480  
Design Telecommunications   http://www.dtelecom.co.uk/ 
Design Telecoms Networks Ltd 14 Foxhunt Grove Calcot, Reading, RG317PE  02083359003  
Desk Comms Ltd 207-209 Southwark Bridge Road, London, SE1 0DN  02034342068  
DestiNet Ltd Bradley House, Exeter, EX2 7HU  01392 441941  
Destiny Business Solutions Ltd Unit 20, Boardman House 64 Broadway, Stratford, E15 1NT  02033840914  
Development Machine Ltd The Fleets Fleets Lane Rylstone Skipton, BD23 6NA  01756730123  
Deverill Ltd Phoenix House, Poole, BH17 7AG  01202785000  
Devil7 Ltd 90-92 Pentonville Road, London, N1 9HS  0870 777 5767  
Dg Uk Ltd 97 HARROW ROAD, LEICESTER, LE3 0JY  07825705224  
DG Wholesale Ltd The Hemmel Blagdon Lan, Cramlington, NE23 8AU  08002 800030  
Diacom Networks Ltd The Springboard Centre Mantle Lane, Coalville, LE67 3DW  01332404202  
Dial 123 24 Punchard Crescent, Enfield EN3 6FZ  0333 555 9372 http://www.dial123.co.uk/ 
Dial 9   http://www.dial9.co.uk/ 
Dial 9 Communications Ltd Unit 9, Winchester Place, North Street, Poole, Dorset BH15 1NX  033 0088 0900 https://www.dial9.co.uk/ 
Dial Around   http://www.dialaround.co.uk/ 
Dial Associates Ltd Millbrook High Bickington Umberliegh Devon, EX37 9BX  0845 458 6994  
Dial Business Systems Ltd 17c St Helens Gardens, London, W10 6LW  020 3084 3214  
Dial Direct UK Ltd 17 Fairway, Branston, Burton on Trent, Staffordshire, DE143EH  01283517999  
Dial Tone Ltd 3 ST CRISPINS COURT 40-42 ST CRISPINS CLOSE, LONDON, UB1 2UT  01582505020  
Dial-A-Code   http://www.dialacode.com/ 
Dialect Telecom Ltd Whitworth Chambers George Row, Northampton, NN1 1DF  01604 212 258  
DialWise   http://www.dialwise.co.uk/ 
Diamond Communications   http://www.diamond-group.net/ 
Diamond Communications (NE) Ltd 1 St. Bede's Station Road East Boldon Tyne and Wear, NE36 0LE  0844 412 2033  
Diamond Communications (UK) LTD 13 Rochester Court Anthony's Way Medway City Estate Kent, ME2 4DN  01634290879  
Diazone Computer Services Exeter House 1 Amor Way Letchworth Herts, SG6 1UG  01462 489 700  
DIDWW Ireland Ltd 10/13 Thomas Street, The Digital Hub, Dublin 8, Ireland  020 8099 5011 https://www.didww.com/ 
Difference Corporation Ltd Merlin House Langstone Business Park, Newport, NP18 2HT  0844 4931100  
Digi Toolbox Ltd Suite 7, Unit 4, IO Centre, Stephenson Road, Fareham, PO15 5RU  01489 297070  
Digicom Telecom Ltd Unit D2 Tariff Road, London, N17 0EB  020 3500 0450  
Digicomm 360 Ltd 468 Halliwell Road, Bolton, BL1 8AN  03704446540  
Digiquip Group Ltd Unit 4 Wayside 7 Commerce Way Lancing Business Park Lancing, West Sussex, BN15 8SW  0844 499 4810 http://www.digiquip.co.uk/ 
Digit Info-Tec Ltd The Hydra Building Unit 3 Warren Road Indian Queens Industrial Estate St Columb, Cornwall, TR9 6TL  01726 390 020  
Digit Telecom ELmsdale House, Mansfield, NG18 5AJ  07814933525  
Digita1 LTD 49 Muirhead Road Stenhousemuir, Falkirk, FK5 4JD  01324876365  
Digital Communication Systems Ltd 7 - 8 Benton Terrace Sandyford Road, Newcastle Upon Tyne, NE2 1QU  0191 209 4444  
Digital Continuity Ltd 2nd Floor Old Inn House 2 Carshalton Road Sutton, Surrey, SM1 4RA  0845 177 7171  
Digital Evolutions Ltd 72B Wollaton Road Beeston, Nottingham, NG9 2NZ  08458054870  
Digital Exchange Ltd President Park President Way, Sheffield, S4 7UR  0114 221 2000  
Digital Exchange Products Ltd Paragon House Lord Street South Leigh Lancashire, WN7 1YB  01942 770000  
Digital Highway LTD Raven House, Kingsgate, Bradford, BD1 4SJ  01274 200400  
Digital interactive Ltd 4 Montgomery Mews Commercial Road, EASTBOURNE, BN213GA  07707704215  
Digital ip   http://www.digital-ip.com/ 
Digital Mail Ltd 70-74 City Rd, London EC1Y 2BJ  020 7060 2000 http://www.digitalmail.com/ 
Digital One Network Services LLP 4 Holly Court 17 Florence Road, Bournemouth, BH5 1EH  0844 742 2037  
Digital Orchard IT Ltd 10 York Place, Edinburgh, EH1 3EP  01312080080  
Digital Phone Company Ltd - 16 Southgates Road Great Yarmouth, Norfolk, NR30 3LJ  0845 000 6000  
Digital Select Ltd Rowan House, 28 Queens Road, Hethersett, Norwich NR9 3DB  033 0377 7700 https://www.digitalselect-uk.com/ 
Digital Telecom Ltd llanthony Industrial estate, Gloucester, GL2 5HL  01452 382382 http://www.digital-telecom.co.uk/ 
Digital Telecom Airtime Ltd Unit 28 Leslie Hough Way Salford University Park, Salford, M6 6AJ  0845 873 8994 http://www.dtairtime.co.uk/ 
Digital Telecom Uk Ltd 2B Crown Business Park, Rochdale, OL11 2PU  01706 507356  
Digital Torque Ltd Unit f Pentagon Park. Lodge farm estate Duston northampton, NN5 7UW  01604 319393  
Digital Voice & Data Walnut Farm Science Park Lockgate Road Sidlesham Common, Chichester, West Sussex, PO20 7QQ  01243 510 904  
Digital World Direct Ltd Bramble Well Rye Road Rye Foreign East Sussex, TN31 7SX  08453 456 575  
Digital WWW Ltd 29 Kestrel Avenue, London, SE24 0ED  020 7147 7001  
Digitech Solutions Global Ltd Jessa  House, 1 Finway, Luton LU1 1WE  0844 773 0057 http://www.digitechsolutions.com/ 
Digitel Europe Ltd Communications Centre 1 Ivy Street Priory Industrial Estate, Birkenhead Merseyside, CH41 5EE  0151 6500065  
Digitel Technology Ltd 7 Cross Street, Barnstaple, Devon, EX31 1BA  0870 750 0551  
Digitrol Ltd Digitrol House Cronet Way Enterprise Park Swansea, SA6 8RH  01792 796000  
Digiweb Ltd IDA Business & Technology Park,  Dundalk, Co. Louth, A91 KR80, Ireland  1800 28 58 28 https://www.digiweb.ie/ 
Dimasoft Ltd Amron House Borough Road, North Shields, NE29 6RN  01912704371  
Dimension Data Visual Communication Ltd Laser House 132-140 Goswell Road, London, EC1V 7DY  02072517000  
Dimentum Ltd 145-157 St. John Street, London, EC1V 4PW  08005202320  
Diraq Applications Systems Ltd 11 Brightmans Drive, Maulden, MK45 2HL  01525402188  
Direct Connect Telecom Ltd Kemp House 160 City Road, London, EC1V 2NX  08443510661  
Direct Data Systems Ltd 38 Prescott Street Halifax, West Yorkshire, HX1 2QW  01422 253 094  
Direct Line Communications Ltd Unit 1, Evans Way, Rowleys Park, Shotton, Flintshire CH5 1QJ  01244 819944 http://www.dlc.co.uk/ 
Direct Market Services Ltd Harvey House St Edwards Court London Road Romford, RM7 9QD  01708756555  
Direct Response Ltd 9 Winchester House Kennington Business Park Cranmer Road London, SW9 6EJ  0870 414 9000  
Direct Save Telecom Hartcran House, Gibbs Couch, Carpenders Park, Herts WD19 5EZ  0800 027 3930 http://www.directsavetelecom.co.uk/ 
Direct Telecommunications Systems Ltd 2D Belle Walk Moseley Birmingham West Midlands B13 9DF  0121 552 6624  
Direct Telecom Network Ltd The Quadrant 99 Parkway Avenue, Sheffield, S9 4WG  0844 598 4488 http://www.direct-telecom.com/ 
Direct Telecommunications (London) Ltd 5 Drakes Courtyard 291 Kilburn High Road, London, NW6 7JR  020 7328 0040 http://www.dtll.co.uk/ 
Direct Telecommunications Systems Ltd 16 Commercial Road Skelmanthorpe, Huddersfield, HD8 9DA  01484 867 867  
Direct Telecoms Ltd Suite 3 Anson Court Horninglow Street, Burton upon Trent, DE14 1NG  0844 815 6604  
Direct Telephone Services Ltd Alexandra House, Talbot Road, Manchester M16 OPG   
Direct2Internet AB    
Directory Business Services Health Farm Wellingore, Lincoln, LN5 0DW  01522 811 688 http://www.dbs-uk.co.uk/ 
Direct-Tec Communications Ltd Churchill court Hortons Way Westerham Kent, TN16 1BT  0844 4142123  
Direct-tec Solutions Ltd Churchill Court Hortons Way Westerham Kent, TN16 1BT  01959 568303  
Direct-tec UK Ltd Churchill Court Hortons Way, Westerham, TN16 1BT  01959568300  
Disconsulting IT Ltd Unit 10 Priestley Road, Basingstoke, KT15 1HJ  01256479700  
Discount Dial   http://www.discountdial.co.uk/ 
Discount VoIP   http://www.discountvoip.co.uk/ 
Discus Systems Plc Patrick Farm Barns Meriden Road, Hampton-in-Arden, B92 0LT  0800 880 3360  
Diskovery Associates Ltd 123 Bournemouth Road Parkstone Poole Dorset, BH14 9HR  01202 733 365  
Diskovery Business Services 123 Bournemouth Road Poole, Dorset, BH14 9HR  01202 733 620  
Distant Voice Ltd Unit 4, Circuit Centre, Avro Way, Brooklands Ind Park, Weybridge KT13 0YT  033 3700 3331 https://distantvoice.co.uk/ 
Distinct Connections Ltd The Old Bakery 10 Back Road, Sidcup, DA4 6HA  020 8302 2200  
Diva Telecom Ltd Glendevon House Thorpe Park, Leeds, LS15 8GB  0330 333 0330 http://www.divatelecom.co.uk/ 
DL Designers Ltd 10/11 Jerusalem Street, Rhymney, NP225JB  02920091321  
DL I.T. Solutions Ltd 571 Southmead Road Filton, Bristol, BS10 5NL  0117 9895969  
DM Business Solutions Patrick House 5 Maney Corner Sutton Coldfield West Midlands, B72 1QL  08707 525 354  
DMV Communications Ltd Fairgate House 205 Kings Road Tyseley Birmingham, B11 2AA  0845 649 0786  
Docklands Telecom Centre Ltd (being dissolved September 2014)   
Document XL XL House Crown Business Park Cowm Top Lane Rochdale, OL11 2PU  0845 644 8600 http://www.documentxl.com/ 
Docutech Office Solutions Ltd Suite 225 275 Great Northern House, Deansgate, Manchester, M3 4EN  08442596155  
doetaylor Ltd Business Design Centre 52 Upper Street, London, N1 0QH  0800 881 8881  
Dolphin Com Ltd P.O. Box 157, Nantwich, Cheshire, LW5 7XD  0800 195 2544  
Dolphin Communications LTD Llwyn onnen, Dryslwyn, SA32 8RJ  07855750727  
Dolphin ICT Ltd US15a, Armstrong House First Avenue Robin Hood Airport Doncaster, DN93GA  01302638722  
Dolphin ONE Communications LLP Unit 23 Blundells Road Bradville Industry, MILTON KEYNES, MK13 7HB  +44 1908 222122  
DOM Computer Services Adams Plain Bakers Lane Garway Hill Herefordshire, HR2 8RT  01989 941 033  
Domy Ventures Ltd 20-22 Wenlock Road,, London, N1 7GU  03306060844  
Doodles Direct Ltd Hadleigh Business Centre, Crockatt Road, Hadleigh, Ipswich, IP76RH  08006921515  
Dorydale Ltd 20 Miles Street, London, SW8 1SD  020 7793 0395  
Double Edge Professional Services Ltd 38-40 Artillery Lane, London, E1 7LS  020 3137 8460  
DoubleDial 4 Paradise Street, Sheffield S1 2DF  http://www.doubledial.co.uk/ 
Dover Technology LTD Kemp House 160 City Road, London, EC1V2NX  01227392668  
DP Beckett House Soverign Court Wyrefields Poulton-le-Fylde, FY6 8JX  08436 366755  
DPS Technology Group LLP First Floor 3 Cromwell Court Greyfairs Road Ipswich, IP1 1UP  01473 283 283  
DR Data Ltd 15 Dairylands Road Church Lawton, Stoke on Trent, Staffordshire  01782478916  
DragonMicro Ltd 1 Brickfields Buisness Park, Woolpit, Suffolk, IP30 9QS, Bury St Edmunds, IP30 9QS  01359 243830  
Drakonim Ltd Suite 1A Post House Adelaide Street, Swansea, SA1 1SB  08435158844  
DrayTEL Pyramid House, 956 Hight Road, London N12 9RX  0845 557 5570 http://www.draytel.org/ 
DRD Communications Ltd No 1 Croydon, 12-16 Addiscombe Rd, Croydon CR0 0XT  020 8288 1234 http://www.drd.co.uk/ 
Dreckly Digital CIC Calstock Village Hall, Calstock, PL18 9QA  01822 834418  
Drogon Systems 19 fore Street, Buckfastleigh, TQ11 0BT  01365 698 123  
Dronfield Computers 27 Burns Drive Dronfield, Chesterfield, S18 1NJ  01246580185  
Dropjaw UK Ltd 20 Main Street Kimberley, Nottingham, NG16 2LL  0844 770 3806  
Drum Brae Solutions Ltd 7 Drumbrae Avenue, Edinburgh, EH12 8TE  0131 202 0330  
DRWebhosting Ellary Lochgilphead, Argyll, PA31 8PA  0845 458 2503  
DSH Electronics Ltd 206 Idle Road, Bradford, BD2 4JT  01274 626 261  
DSL Plus Ltd 3 Prospect Court Courteenhall Road Blisworth Northampton, NN7 3DG  01604 879 330  
DTech IT Ltd Lynton House Golden Hill, Leyland, PR25 3NN  01772454447  
DTP Consultants Ltd 3 The Courtyard Warners Farm Main Road Chelmsford, CM3 1BL  0345 437 4442  
Dtx Telecommunications Ltd Unit 2c Harewood Yard Harewood Leeds West Yorkshire, LS17 9LF  0844 8870 700  
du Pré plc Vo-Tec Centre Hambridge Lane Newbury Berkshire, RG14 5TN  01635 555 555  
Dual Energy Direct Ltd Premium House The Esplanade Worthing West Sussex, BN11 2BJ  0845 521 4291  
Dualtone Communications Ltd 389 Ringwood Road, Poole, BH12 4LT  01202935001  
Dub IT Solutions Ltd Unit 2 Houghton Square 378 Clapham Road, LONDON, SW9 9AN  02038174835  
duka PC UK Ltd 1 Commercial Road, Eastbourne, BN21 3XQ  0330 223 2272  
Dunblue Ltd 8 Byford Court Crockatt Road Hadleigh Suffolk, IP7 6RD  0845 680 6806  
Dunedin IT Ltd 22 Young Street North Lane Edinburgh, Midlothian, EH2 4JD  0131 225 2215  
Dunkers Ltd Dunkers Limited Duncairn Doles Lane Wokingham, RG14 4EA  0118 978 6259  
Dunluce Communications Ltd Whitehall Road, Leeds, LS1 4AW  07957527734  
Dunston Business Village Ltd Barn 2B South Courtyard Dunston Business Village Ltd Dunston, ST189AB  01785711600  
Dunston IT Solutions House 161 High Street Aldershot Hampshire, GU11 1TT  01252 406 420  
DuoCall Communications Ltd Unit 8, Genesis Business Park, Sheffield Road, Rotherham, South Yorkshire S60 1DX  0333 313 5000 https://www.duocall.co.uk/ 
Du-Tel Ltd    
DV Support Suite 224 29 - 30 Horsefair, Banbury, OX16 0BW  01295271545  
DV02 Ltd 4 Acorn Business Centre Northarbour Cosham Portsmouth, PO6 3TH  0844 770 99 55  
Dvi Utilities Ltd COTTON PLACE, 2 IVY STREET, BIRKENHEAD, CH41 5EF  07702482319  
Dwarf Ltd 60 Regent Place, Birmingham, B3 1UG  0121 236 1888  
DWG Telecoms LTD The Old Workshop Kennerleys Lane, Wilmslow, sk9 5eq  08450177806  
Dyfed IT Solutions Ltd Llysarad Aberarad, newcastle emlyn, sa389db  01239 545033  
Dynamic Edge Communications Ltd 7 Waverley Place, Aberdeen, AB10 1XH  0845 680 9660  
Dynamic Mobile Billing Ltd 12th Floor, Lyndon House, 58–62 Hagley Road, Birmingham B16 8PE  0808 206 0808 https://www.dmbltd.org/ 
Dynamics Computer Consultants Ltd 5e Longrock Industrial, Estate, Penzance Cornwall, TR20 8HX  01736-888123  
Dytex Technology Ltd Treverbyn Bray Shop, Callington, PL17 8QA  01579370359  
DYTS Ltd The Old Barrel Store Draymans Lane, Marlow, SL7 2FF  01628400666  
E & S Computers 24a Ditton Street, Ilminster, TA19 0BQ  01460 259999  
E.S. Systems Ltd Systems House Fulforth Farm Witton Gilbert Durham, DH7 6TU  01913712392  
E164 Berrycentre, Chiltern Drive, Surbiton, Surrey, KT5 8LS   
e247 Ltd 85 London Road, Cheltenham, GL52 6HL  01392 247247  
E2BN Protex Ltd Unit 1-2 Saltmore Farm New Inn Road Hinxworth Baldock, SG7 5EZ  01462 834588  
E2E Technologies Ltd 19a Barnstone Lane Moreton Wirral Merseyside, CH46 7TN  0151 203 2040  
E7even UK Ltd Suite C9 Powerhub Business Centre St. Peters Street Maidstone, ME16 0ST  0870 224 5122  
EA Systems & Support Ltd East Wing 3 Lorne Park Road Bournemouth Dorset, BH1 1AH  01202 614 061  
Eagle Promotions Ltd Unit 1 Clearway Court 139-141 Croydon Road Caterham Surrey, CR3 6PF  01883 344 244  
Earley Consulting Ltd 18 Tudor Close Carleton, Poulton-le-Fylde, FY67TD  03335776166  
Easiphone Ltd Royal York Mews Broad Street, Bath, BA1 5LL  0207 989 0579  
Easi-tel Ltd Eagle Tower Montpellier Drive, Cheltenham, GL50 1TA  0333 772 9878  
East Devon IT Ltd The Hub York Street Sidmouth Devon, EX10 8BW  01392 908 000  
East Finchley Electrical Contractors Ltd 115 High Road East Finchley, London, N2 8AG  0208 883 9098  
East London Small Business Centre Ltd Universal House 88-94 Wentworth Street, London, E1 7SA  02073778821  
East Midlands Online Ltd Suite 4 Onsite Lodge Mansfield Road Eastwood Nottingham, NG16 3AR  0843 330 2194  
Eastern IT LTD 207 Regent Street, London, W1B 3HH  08458340300  
Eastern Telephones Ltd Wensum Mount Business Park Low Road Hellesdon Norwich, NR5 9AA  01603 743 388  
Eastern Voice   http://www.easternvoicedata.co.uk/ 
Eastern Voice and Data Hosted 1-2 Bowthorpe Works Bowthorpe Hall Road Norwich Norfolk, NR5 9AA  01603 743388  
Easy Networks Ltd unit 1.1 Central Point Kirpal Road, Portsmouth, PO3 6FH  02392778800 http://www.easy.co.uk/ 
Easy Utilities Ltd Suite 6, Bridgewater House, Surrey Road, Nelson, BB9 7TZ  0844 4120002  
Easycallnow   http://www.easycallnow.net/ 
easyCloudIT Ltd 2 Blenheim Road, Ramsey, PE26 1AL  01480 878619  
Easycontactnow   http://easycontactnow.com/ 
Easycopiers Ltd Innovation House Presley Way Crownhill Milton Keynes, MK80ES  08445832800  
Easy-Dial PO Box 8213, Chiswick, London W4 3WR  020 8987 9552 http://www.easy-dial.com/ 
Easynet Ltd 5 Thomas More Street Thomas More Square, London, E1W 1YW  0207 0325000 http://www.easynet.com/gb/en/ 
Easynet Channel Partners Ltd 20 St Christopher's Way, Pride Park, Derby DE24 8JY  01332 646600 http://www.interoute.com/ 
Easynet Enterprise Services Ltd St James House, Oldbury, Bracknell RG12 8TH  01344 543700 http://www.interoute.com/ 
Easynet Global Services Chancellor House, 5 Thomas More Square, London E1W 1YW  020 7032 5200 http://www.interoute.com/ 
Easynet Network Services Ltd Easynet Ltd St James House Oldbury Bracknell, RG12 8TH  01344 543 700  
Ebbe Fone Galleria Ltd 1-2 Kingsway Buildings Kingsway Burnage Manchester, M19 1PH  0161 442 2000 http://www.ebbe.co.uk/ 
EBC Group (UK) Ltd 221 Hagley Road, Halesowen, B63 1ED  0121 585 4400  
Ebor Operations Ltd The Saddlers Lodge Farm Appleby Brigg, DN15 0DB  0333 344 3033  
Ebrey IT Chase End Shrewsbury Road, Shropshire, SY4 5PP  0333 240 7310  
EBS Europe Ltd 3a Dublin Meuse, Edinburgh, EH3 6NW  07789 434 106  
EBT Maintenance Ltd 4 Farrington Way Eastwood, Nottingham, NG16 3BF  0800 840 4181  
EC Computers Ltd The Granary at Hortham Farm Hortham Lane, Almondsbury, BS32 4JW  0117 200 1000  
EC Technical Services Ltd Swithin House 37Norton Road Stourbridge West Midlands, DY8 2AG  0845 141 0080  
Echo Network Services   http://www.echocommunications.co.uk/ 
Eckoh UK Ltd Telford House, Corner Hall, Hemel Hempstead HP3 9HN  01442 458300 http://www.eckoh.com/ 
Eclarity Solutions Ltd Network House 10g Buntsford Park Road Bromsgrove Worcs, B60 3DX  01527 908 865  
Eclipse Networking Ltd Osprey House Osprey Road, Exeter, EX2 7WN  0845 122 4333  
Eclipse Office Technologies Ltd Pacific House Parkhouse Carlisle Cumbria, CA3 0LJ  0844 887 5050  
Eclipse Technology Services Ltd 9 Minet Drive, Hayes, UB3 3JN  020 8797 7799  
Eco IP Communicayions Ltd The Bristol Office 2 Southfield Road, Bristol, BS9 3BH  0117 911 2992  
EcoDial Ltd Alexander Business Park, St Helens, WA10 3TP  08000465098  
Economy Calls Churchill House Churchill Way, Cardiff, CF10 2HH  0845 234 0200  
Economy Mobile   http://www.economymobile.co.uk/ 
Ecosse   http://www.ecosse.net/ 
Ecosse Group Ltd PO Box 16279, Glasgow G13 9BE  0870 403 0140  
Ecosse Technology and Communications Ltd 11 Maybole Road, Ayr, KA7 2PZ  0141 950 2640  
Ecotalk Ltd Lion House Rowcroft, Stroud, GL5 3BY  0333 800 5500  
Ecotel Networks (Ireland)   http://ecotelnetworks.com/ 
Ecotel Networks Ireland Ltd 6 Greenburn River Mews 23 Ballynure Road Ballyclare Northern Ireland, BT39 9AG  08444 41880  
Ecotele   http://www.ecotele.co.uk/ 
ECS Computers Ltd 98-99 London Road King’s Lynn, Norfolk, PE30 5HA  01553 692 727  
Ecservers Ltd 38 kensington gardens square, London, W2 4BQ  02036036456  
Edanpower Ltd Unit 4B Great Barr Business Park Baltimore Road Great Barr Birmingham, B421DY  01213990023  
Eden Currie Business Technology Ltd Pegasus House Solihull Business Park, Solihull, B90 4GT  0330 822 0133  
Eden Services Scotland 43 Ellens Glen Road, Edinburgh, EH17 7QJ  01316643906  
Eden Telecom Ltd Axiom House Moorfield Business Park Moorfield Yeadon, Leeds, LS19 7YA  0113 892 1115  
Edge Telecom Ltd Global House, 2 Crofton Close, Lincoln LN3 4NT  0844 443 4433 http://www.gcicom.net/ 
Edge Telecommunications Ltd Global House Allenby Business Village 2a Crofton Close Lincoln, LN3 4NT  0870 6071038  
Edgecoms Ltd Unit 13 Waterwells, Gloucester, Gl2 2AP  08456448310  
Edinburgh Computers Ltd 4 South Clerk Street, Edinburgh, EH89JE  0131 6629955  
Edinburgh Network Technologies Ltd 12 Dock Place, Edinburgh, EH6 6LU  0845 119 9970  
Edison Networks Ltd 7 Whimbrel Close Sanderstead, South Croydon, CR2 0RW  07826871878  
Ed-IT Solutions (UK) Ltd Unit 1, Willow Mill Fell View Caton Lancaster, LA2 9RA  01524771950  
Educom Ltd 60 Nore Road Dublin Ind Estate Glasnevin Dublin, Dublin 11  018601995  
Edward Martin Computer Services Unit 1 Roughmoor Industrial Estate Wilton Somerset, TA4 4RF  01984 633603  
Everything Everywhere Ltd Hatfield Business Park, Hatfield, Herts AL10 9BW  0845 412 5000 http://ee.co.uk/ 
Everything Everywhere Ltd Hatfield Business Park, Hatfield, Herts AL10 9BW  0845 412 5000 http://ee.co.uk/ 
eemits Communications   http://www.eemits.co.uk/ 
EEZPC Ltd Mearns House Kirkton of Auchterless Turriff Aberdeenshire, AB53 8BG  01888 511552  
Efar Ltd The Old Library 6 Linden Road, Clevedon, BS21 7SN  01275 797900  
Effective Communication Solutions Ltd 43 Bradford Road Tingley, Wakefield, WF3 1RG  08450 515 030  
Efuse Telecom Ltd Liverpool Business Centre 25 Goodlass Road, Liverpool, L24 9HJ  0333 3230 139  
Egton Medical Information Systems Ltd Fulford Grange Micklefield Lane Rawdon Leeds, LS19 6BA  0113 380 3000  
EHL Networks Ltd 10 Railton Road Wolseley Business Park Kempston Beds, MK42 7PN  01234 851 167  
Eight Networks Ltd Skirsgill Business Park, Penrith, CA11 0FA  0845 456 9889  
eInfinity Ltd Tredomen Business and Technology Centre Tredomen Park Hengoed Caerphilly, CF82 7FN  01443813535  
Eips Ltd 17 Lee Lane Horwich, Bolton, BL6 7BP  0844 824 6060  
Eipsys Ltd 60 Shalford Road Rayne Braintree Essex, CM77 6BY  020 7100 2599  
Eircom (UK) Ltd Davenport House, 16 Pepper Street, Glengall Bridge, London E14 9RP  0800 039 2000 http://www.eir.co.uk/ 
Eircom NI Ltd Forsyth House, Cromac Square, Belfast BT2 8LA  028 9000 2100 http://www.eircomni.co.uk/ 
EIS Computing Ltd 82 Goldings Road, Loughton, IG10 2QN  08432891449  
Eison Ltd 18 The Embankment Vale Road, Stockport, SK4 3GN  08448009213  
Eker International Ltd Davina House 137-149 Goswell Road, London, EC1V 7ET  0845 108 0557  
e-know.net Ltd Datapoint House 400 Queensway Business Park Queensway Telford, TF1 7UL  01952 225000  
Eko-Sys Ltd Redcare West Burnside Laurencekirk Kincardineshire, AB30 1UY  03444 099880  
Electrodune Flat 33 Halyard House Manchester Road, London, E14 3HD  02030111020  
Electronic Business Systems Ltd 852 Tyburn Road Erdington, Birmingham, B24 9NT  01213842513  
Electronic Data Processing PLC Fourth Floor Fountain Recinct Balm Green Sheffield, S1 2JA  01142622000  
Electronic Media Services Ltd Passfield Business Centre Lynchborough Road, Liphook, GU30 7SB  01428 751655  
Electronic Security Phone Systems ltd 3 Chapman Lane, Bourne End, SL8 5Pb  01628 531531  
ElemenTel Ltd 2 Mountbatten Business Centre Millbrook Road East, Southampton, SO15 1HY  02381 103333 http://www.elementel.co.uk/ 
Elexaar Ltd 78 Trym Side, Bristol, BS9 2HQ  07454243247  
Elite Business Systems UK Ltd 26-27 Chartergate Quarry Park Close Moulton Park Northampton, NN3 6QB  0870 899 3355  
Elite Cloud Solutions Ltd 41 Burnt Oak Lane Sidcup, Kent, DA15 9BZ  020 7148 7680  
Elite Telecoms (Dorset) Ltd Suite 2, Cleveland Court Cleveland Road Bournemouth Dorset, BH1 4QB  01202 392 970  
Elitetele.com PLC 33 Cornhill, London EC3V 3ND  0843 636 8415 https://www.elitetele.com/ 
Elitex Ltd 26 Beeches Walk, Sutton Coldfield, B73 6HN  0121 321 2121  
Eloquent Technologies Ltd Calyx House South Road Taunton Somerset, TA1 3DU  0800 2100106  
ElpaTech Ltd 33 London Street, Andover, SP10 2NU  01264748043  
Elro Electronics Ltd 408a Wokingham Road Earley, Reading, RG6 7HX  07702159140  
Eltham Communications Ltd 159 Eltham High Street, London, SE9 1TW  020 8850 2233  
Emedia Telecom 32 Grove Place, Bedford, MK40 3JJ  0845 226 0260  
Emerito Ltd Church Road, Crockenhill, BR8 8JY  0870 2336840  
Empanda    
Empower IT Solutions Ltd 11 Broad Meadow Ipswich, Suffolk, IP8 3SP  01473 557 203  
E-mpower.IT Ltd Suite J KBF House 55 Victoria Road Burgess Hill, RH159LH  01444 250404  
Empowered Solutions Ltd The Old School HOuse Tamworth Road, Long Eaton, NG101BE  01159460033  
Emtel Ltd Renewal Trust Business Centre 3 Hawksworth Street, Nottingham, NG3 2EG  0115 947 5952  
Emysea UK Ltd 145-147 St John Street, London, EC1V 4PW  01992 666 525  
e-nasc eireann teoranta Hamilton house, limerick, V94 TRW8  +35361274000  
Enbel    
Enbiz Ltd 4 Shakespeare Avenue Hawarden, Deeside, CH5 3TB   
Energy Simple Ltd Unit 3 Netherton Court Infirmary Walk Worcester, WR1 3AU  01905384222  
Energy Telecom Ltd Freepost Energy Telecom PO Box 6918, Derby, DE1 9EL  0870 755 6699  
Enet Telecommunications Networks Ltd hamilton house national tech park plassey limerick, V94TRW8  +353879573653  
Engineering Intelligence Ltd 4 Torr Street, Glasgow, G22 5ED  +441671900020  
Enhanced Computer Solutions Ltd 3 New Fields Stinsford Road, Poole, BH17 0NF  01202 308 000  
Enhanced IT Ltd Adelaide House Perth Trading Estate, Slough, SL1 4XX  020 7122 1227  
Enlinea Ltd 278 St Vincent Street, Glasgow, G2 5RL  0141 285 6677  
Enlinea Networks Ltd 278 St Vincent Street, Glasgow, G2 5RL  0141 285 6677  
Enrich Telecom Ltd 406 Roding Lane South Woodford Green, Essex, IG8 8EY  0330 303 0130  
Ensign Communications Ltd Unit 20/21 Sandford Lane, Wareham, BH20 4DY  01929 556553  
Entamedia Ltd Stafford Park 6 Telford, Shropshire, TF3 3AT  0333 101 5000  
Entanet International Ltd Stafford Park 6, Telford TF3 3AT  0330 100 3550 https://www.enta.net/ 
Entelligent Value Enhancement Ltd 107-109 Towngate,,  Leyland, PR25 2LQ  01772888000  
Enter-at 2 Bader Drive, Upper Heyford, OX255TN  01869220280  
Enterprise Carrier Services Ltd   http://www.ecscomms.co.uk/ 
Enterprise Solutions (E-Sol) LTD Suite 13 ELE CENTRE LINK WALK EASTFIELD Scarborough, YO11 3LR  01723364444  
Enterprise Telecoms Ltd Office 69 Holland Park Cyttir Road Holyhead, LL65 2PU  01407760909  
Entigy Ltd Imperial Chamber Prince Albert Street Crewe Cheshire, CW1 2DX  01270 212199  
Entropia Digital Ltd 8 Northumberland Avenue, London, WC2N 5BY  02036332333  
Entropie Ltd 18 Walker Avenue Wolverton Mill East, Milton Keynes, MK12 5TW  0845 3305539  
Entrust IT Ltd Unit 1, The Doughty Building Crow Arch Lane, Ringwood, BH24 1NZ  0330 0020045  
Envision Technologies Ltd Suite 109 The Standish Centre Cross Street, Standish, WN6 0HQ  01257 472 959  
Enviz Ltd Unit 1-3 Mebourne Farm Liddington, Swindon, SN4 0EY  0800 0822 420  
EOS Communications Ltd Suite E Hove Technology Centre St. Josephs Close Hove, BN3 7ES  01273 900900  
Eossystems Ltd 100 Ladas drive, Belfast, BT6 9FH  +442890459222  
E-Partner Telecom Ltd Marathon House Olympic Business Park Drybridge Road Dundonald,Kilmarnock, KA2 9AE  01563 852230  
Epic Integration Ltd 8th Floor 6 Mitre Passage Greenwich Peninsula London, SE10 0ER  02031501685  
e-plenish Ltd Unit 12 Barnes Wallis Road Segensworth Hampshire, PO15 5TT  0845 505 5544  
Epoq IT Ltd Unit 9 Anglo Office Park Lincoln Road Cressex Business Park High Wycombe, HP12 3RH  01494 444065  
EQ Systems (t/a E-centriQ Ltd) 8 Leopold Road, London, NW10 9LP  020 8453 0700  
EQPI Software Ltd Ingleside House The Drive, IFOLD, RH14 0TB  07976246287  
Equate Business Solutions Ltd Cardiff House Cardiff Road Barry Vale of Glamorgan, CF63 2AW  0845 085 0053  
Equate Group Plc 3 Watermill Way Weston Turville, Bucks, HP22 5SR  01296 612 427  
Equiinet Technologies Ltd Edison House, Edison Road, Dorcan, Swindon SN3 5JX  01793 603700 https://www.switchconnect.co.uk/ 
Equip-IP Ltd Albany House 14 Shute End Wokingham Berkshire, RG40 1BJ  0118 3231674  
Equitalk.co.uk Ltd 5th Floor, Britannia House, 960 High Road, London  N12 9RY  0800 161 3837 http://www.equitalk.co.uk/ 
Equitalk.co.uk Ltd Innovation Centre Heyford Park Upper Heyford Oxon, OX25 5HD  0800 161 3837  
Equity Networks Ltd Boundary House Cricket Field Road Uxbridge Middlesex, UB8 1QG  01753 668 668 http://equitynetworks.co.uk/ 
j2 Global Ireland Ltd Unit 3, Woodford Business Park, Santry, Dublin 17, Ireland  020 3070 1000 https://www.ereceptionist.co.uk/ 
ERS eBusiness Services Ltd 124 New Bond Street, London, W1S 1DX  02079939789  
Erud IT Ltd Trinity House, Wharf Farm Coventry Road, Hinckley, LE10 0NF  01455 611557  
ESAT Telecommunications Ltd c/o Norton Rose, Kemson House,PO Box 570 Camomile Street, London EC3A 7AN   
Esendex Ltd 20 Wollaton Street, Nottingham NG1 5FW  0115 958 1400 https://www.esendex.co.uk/ 
Eskimo Intelligent Solutions 62 Queens Road, Aberdeen, AB15 4YE  01224 208820  
ESP Global Services Ltd 5 Acre Road, Reading, RG2 0SU  01189169300  
eSpida Ltd 111-113 Fort Dunlop, Birmingham, B249FD  03448806140  
Espirit Telecom UK Ltd Minerva House, Valpy Street, Reading
RG1 1AR 
0118 951 4000 http://www.esprittele.com 
E-Squire Business Solutions Ltd 84 Billingham Road, Stockton on Tees, TS20 2SA  01642040616  
Essanet Ltd 8 Cromwell Business Centre Howard Way Newport Pagnell Milton Keynes, MK16 9QS  01908 888327  
Esscom Communications Ltd Century House Westcott Venture Park Westcott Bucks, HP18 0XB  08704 232 320  
Essensys Ltd Centre Point, 103 New Oxford Street, London WC1A 1DD  020 3102 5252 http://www.essensys.co.uk/ 
Essential Security (UK) Ltd 151 Sheen Lane, London, SW14 8LR  0844 484 2572  
ETC Telecom Ltd 16 Shearway Business Park, Folkstone, Kent CT19 4RH  0872 048 4848 http://www.etctelecom.co.uk/ 
E-Tel Communications Ltd Suite 14 Hattersley House 1 Hattersley Court Burscough Road Ormskirk, L39 2AY  01695 575 217  
E-Telegence.com Ltd 166 Grahams Road, Falkirk, FK2 7BY  01324 808 741  
Ethcom Ltd   http://www.ethcom.org/ 
Etherlive LTD Unit 13 Interface Business Park, Royal Wootton Basset, SN48SY  01666800129  
Ethertek LTD 8 Crown Wood Court Bamfurlong, Wigan, WN25LY  01618831514  
Ethos Voice and Data Ltd 72 Leadenhall Market, London, EC3V 1LT  020 7253 4882  
ETS Communications Ltd Stonebridge House Wakefield Road Horbury Wakefield, West Yorkshire, WF4 5HQ  01924 237000  
EUNA Ltd The Enterprise Hub Edinburgh Way Harlow Essex, CM20 2NQ  0843 216 8910  
Euro Business Solutions Ltd Euro House Satellite Park Macmerry East Lothian, EH33 1RW  0800 328 1372  
Euro Systems (Scotland) Ltd 7000 Academy Park Gower Street, Glasgow, G51 1PR  08445675029  
Eurodexx Ltd 86-90 Paul Street, London, EC2A 4NE  02031501808  
Eurolink Connect Ltd 21 High Street Stonehouse, Gloucestershire, GL10 2NJ  01453 700 800 http://www.eurolinkconnect.com/ 
Eurolink Telecom Ltd Swan House Bonds Mill Estate Stonehouse Glos GL10 3RF  08450 755 500 http://www.eurolinktelecom.com/ 
Europacom.net Ltd The Rectory Stoneham Park, Eastleigh, S050 9NW  023080 646 305 http://www.europacom.net/ 
European Communications - Communications House 17 Chesham Avenue Flixton Manchester M41 8SS  08709 500 074  
European Communications - Communications House 17 Chesham Avenue Flixton Manchester, M41 8SS  01617420063  
European Computer Units Ltd Units B&C Station Road Estate Newcastle Emlyn, Carmarthenshire, SA38 9BY  01239 710 823  
European Strategic Advisory Services Ltd 21 Hurst Park, Midhurst, GU29 0BP  0203 603 4635  
European Telecom Solutions PO Box 104, Neath, SA11 2WZ  01639 814 800  
Eurotech Services (UK) Ltd 5 Marchmont Gate Boundary Way, Hemel Hempstead, HP2 7BF  01442 217099  
Eurotel Communications Ltd HB House Foleshill Enterprise Park Courtaulds Way Coventry, CV6 5NX  0870 750 9999  
Eurowide Telecoms    
Ever Data Ltd 7 Topsfield Parade, London, N8 8PR  07932079260  
Evercom Technology 5 Knuway house Cranborn Road, potters bar, EN63JN  01707620245  
Everon Ltd The Lodge 87 Harrogate Road Chapel Allerton Leeds, LS7 3QQ  0113 225 7193  
Everthing TC Ltd Everything TC Limited Daleside House Park Road East Calverton, NG14 6LL  01159 655354  
Everycomm Ltd Suite 216 Lombard House 12/17 Upper Bridge Street Canterbury, Kent, CT1 2NF  01795 342 424  
Everything Comms Ltd 65 Gibfield Park Avenue, Atherton, M46 0SY  03301224250  
Everything Everywhere Ltd Hatfield Business Park, Hatfield, Herts AL10 9BW  0845 412 5000 http://ee.co.uk/ 
Everything Telecoms Ltd 4 Tesla Court Lynchwood, Peterborough, PE2 6FL  01733 590 401  
Everything Voice Ltd 17 Howley Park Business Village Morley, Leeds, LS27 0BZ  0330 055 3570  
Everything Voip Ltd 8 Shaw Heath View, Knutsford, Cheshire WA16 8HP   
Evolve BG Ltd 704 Merlin Park Burscough, Lancashire, L40 8JY  0845 612 0442  
e-volve solutions LTD 83 Friar Gate, Derby, DE1 1FL  08452 870685  
Evolve Telecom Ltd Evolution House New Garrison Road Shoeburyness Essex, SS3 9BF  01702 411 512 http://www.evolvetele.com/ 
Evolving Networks Ltd Datum House 3 Commerce Road Lynch Wood Peterborough, PE2 6LR  0845 652 2212  
Evorio Ltd 3-4 Crumplins Business Court, Odiham, RG29 1DU  01256 704518  
EvoSoft Windrush Millennium Centre 70 Alexandra Road, Manchester, M16 7WD  01618508008  
EW Communications Ltd Linton House, Highgate Road, London NW5 1RS  020 7428 7733 http://www.ewcoms.com/ 
Exa Networks Ltd 100 Bolton Road, Bradford BD1 4DE  0345 145 1234 https://www.exa.net.uk/ 
Exactive Exactive House, Pitreavie Court, KY11 8UU  0844 561 1577  
Exascale Ltd Hilton Hall Hilton Lane, Wolverhampton, WV11 2BQ  0330 010 0140  
Excalibur IT Dauntsey House Westlea, Swindon, SN5 7HB  01793 438 881  
Excel Business Communications Ltd Whitfield Business Centre 188-200 Pensby Road Heswall Wirral, CH60 7RJ  0333 358 3331  
Excel Office Communications LTD 66-69 Pegholme Mill Wharfebank Business Centre, Otley, LS213JP  01943858404  
Excel Telecom Ltd First Floor Braemar House 127 Main Street Garforth, Leeds, LS25 1AF  0113 286 3299 http://www.exceltelecom.co.uk/ 
Excel Telecommunications Network Ltd Greenlands Business Centre Studley Road, Redditch, B98 0NZ  01527 527 747  
Excell Business Systems Ltd 4-6 Langford Arch London Road Industrial Estate Sawston Cambridgeshire, CB22 3FX  01223 505050  
Excell Group 9 Lower John Street, London W1F 9DZ  020 7292 8600 http://www.excellgroup.com/ 
Excell Network Solutions Ltd   http://www.excellgroup.com/ 
Excellence IT (UK) Ltd Unit 8 Swanbridge Court Bedwas House Industrial Estate Bedwas Caerphilly, CF83 8DW  02920887362  
Exchange Communications Ltd Exchange House Kerr Street Kirkintilloch Glasgow, G66 1LF  0141 776 5851 http://www.exchangecommunications.co.uk/ 
Exchange Communications Network Services Ltd Prime House 14 Porters Wood St Albans Herts, AL3 6PQ  01727 858 449  
Exec-IT 264 Ravenswood Avenue, Ipswich, IP3 9TQ  01473 550793  
Exeid Ltd St Nicholas Court 27 Castle Gate, NOTTINGHAM, NG1 7AR  0115 8241444  
Exigo Technologies Ltd Unit 1a Sandown Road Industrial Estate Sandown Road, Watford, WD24 7UB  02030962220  
Eximus Solutions Ltd 53 Ullswater Crescent Coulsdon, Surrey, CR5 2HR  0844 887 1100  
Exmos Ltd Epoch House Falkirk Road Grangemouth Stirlingshire, FK3 8WW  01324 486 844  
Exonet Systems Ltd 17 Dainton Business Park, Newton Abbot, TQ12 6RG  07919237173  
Expanse (UK) Communications Ltd The Old Rectory Church Road Sevington, Ashford Kent, TN24 0LD  0870 242 1718  
Expat Email Ltd Cross Keys House Queen Street, Salisbury, SP1 1EY  01722 777 999  
Expedite Total Office Solutions Ltd 9 Lynx Crescent, Weston Super Mare, BS24 9DJ  01934 422 222  
Expert Systems Ltd The Meeting Rooms Boothroyd Lane, Dewsbury, WF13 2LP  01924488612  
Expert Tech IT Ltd Cardiff House Cardiff Road, Barry, CF63 2AW  01446327329  
Exponential-e Ltd 100 Leman Street, London E1 8EU  020 7096 4100 http://www.exponential-e.com/ 
Express Commerce Ltd Wassell Grove Business Centre Wassell Grove Lane Hagley West Midlands, DY9 9JH  0845 141 0080  
Express Telephony Ltd 9 Perowne Way Puckeridge, Ware, SG11 1SZ  0800 052 2323  
Exsel IT & Communications Ltd Exsel House 2 Moorpark Avenue, Glasgow, G69 9DZ  0141 779 1111  
Exstream Networks Ltd The Studio 377-399 London road Camberley Surrey, GU15 3HL  01420 562929  
Extech Ltd Delta House Bridge Road Haywards Heath West Sussex, RH16 1UA  01444 443200  
Extera Ltd 10 Manor Park, Banbury, OX16 3TB  0800 10 77 655  
Extreme Gaming Solutions Ltd 5 london Road, Swanley, BR8 7AQ  07484706840  
EZ Telecoms Ltd 40 The Green Peterborough, Cambs, PE4 6RX  01733 750 544  
Eze Talk Ltd Kingsley House Eaton street Crewe Cheshire, CW2 7EG  0845 017 9878  
Ezee Business Solutions Ltd The Old Barn Pury Hill Business Park Nr Alderton Towcester, NN12 7LS  01327 810062  
eZe-Talk Ltd Kingsley House, Eaton Street, Crewe CW2 7EG  0845 017 9878 http://www.eze-talk.com/ 
Ezis Ltd 31a Clerkenwell Close, London, EC1R 0AT  03332020444  
EZPC Ltd 2 Cross Way Petts Wood, Kent, BR5 1PF  07828252201  
F H Brown Office Technologies Ltd    
F One Technologies Ltd 20 Mead Road Chandlers Ford Eastleigh Hampshire, SO53 2EZ  07706 123 000 http://fonetechnologies.co.uk/ 
F&M Telecommunications Ltd 170 Walkwood Road, Redditch, B97 5NS  020 7625 2999  
F6 Consulting Ltd 71 Rochelle Way, Northampton, NN5 6YJ  01604592011  
F8 Solutions Ltd 13 Columbia Road Bournemouth, Dorset, BH10 4DZ  01202 901 530  
Fab Spider Ripponden Mill Mill Fold, Ripponden, HX6 4DH  01422 825712 http://www.fabspider.com/ 
FAB-ITRescue Ltd Heath House 19a Heath Ridge, Long Ashton, BS41 9EW  01179 118094  
Fabric Technologies 222 Grays Inn Road, London, WC1X 8HB  020 7841 6700  
Face To Face Digital The Old Gasworks 2 Michael Road, London, SW6 2AD  020 7384 9121  
Faces UK Ltd 16 Bulwark Avenue Bulwark, Chepstow, NP16 5QG  01291 620 189  
Factotum Ltd 8 Swan Lane Business Park Newmarket, Suffolk, CB8 7FN  01638 576 403  
Fair Isaac (Adeptra) Ltd International Square, Starley Way, Birmingham B37 7GN  020 7940 8718 http://www.fico.com/ 
Fair Pricing 4 Business Ltd 2nd Floor Offices 71A High Street Rushden Northamptonshire, NN10 0QE  01933 201 111  
Fairford Communications Ltd Millhouse Business Centre Station Road Castle Donington Derbyshire, DE74 2NJ  08454 595 595  
Fairland Consulting Ltd Abbey House 25 Clarendon Road, Redhill, RH1 1QZ  01737852198  
Fairlea Online Ltd Unit 12, Trident Ind Estate Blackthorne Road Colnbrook Slough, SL3 0AX  01753 287882  
Faith Telecommunications Ltd 54 Norfolk Gardens, Littlehampton, BN17 5PF  07484079484  
Farm Out It Ltd 4 Nicola Mews Hainault, Ilford, IG6 2QE  02031371747  
Farndale Free Range Ltd Farndale Kirkbymoorside, York, YO62 7LH  01751 430 323  
Faros Engineering Ltd Look House Aldon Road Poulton Ind Estate Poulton-le-Fylde, FY6 8JL  01253886665  
Fast Connect Media Ltd 12 Tatsfield Close, Gillingham, ME8 6AU  01634 505003  
Fast Systems Consultants Ltd Hermitage Tower Hurstwood Road, Uckfield, TN22 4BH  02082971776  
Fast247   http://www.fast247.co.uk/ 
Fast4   http://www.fast4.net/ 
fasthosts   http://www.fasthosts.co.uk/ 
Fasthosts Internet Ltd Discovery House 154 Southgate Street, Gloucester, GL1 2EX  0333 0142700  
Fastnet   http://www.fastnet.co.uk/ 
Fastnet International Ltd Shaftsbury Court 95 Ditchling Road Brighton East Sussex, BN1 4ST  01273 662 888  
Fastvision Ltd Pillar House, 113/115 Bath Road, Cheltenham, GL53 7LS  08447766999  
Fat Hosting Ltd 12 Spring Garden Street, Lancaster, La11RQ  441524548949  
Faultbasic Ltd    
Fax2Mail Ltd Venture West New Greenham Park Newbury Berks, RG16 6HN  0870 114 1140  
Faxtastic 23B High Street, Tring, Herts HP23 5AH  01442 927397 https://www.faxtastic.co.uk/ 
FCL Ltd Unit 1 Western Business Park Brixham Road Paignton Devon, TQ4 7BR  01803 663 338  
FCP Communications 19-20 Bourne Court Southend Road Woodford Green Essex, IG8 8HD  01279 60 32 91  
FCP Technologies Ltd 3B Wixford Park Georges Elm Park, Bidford on Avon, B50 4JS  01789 868190  
FEBO Telecom Ltd 232 Arch Makariou III Avenue, Limassol 3030, Cyprus  +357 25 030468 http://www.febotele.com/ 
Fellcroft Computing 13 Hallstile Bank, Hexham, NE46 3PG  01434606417  
Feltech Electronics Ltd Feltech House 7 Long Spring St Albans Hertfordshire, AL3 6P  01727834888  
Fenetre Ltd Friargate Studios, Derby, DE1 1EE  01332 460640  
Fenix Solutions Ltd 3A Alexander House Castlereagh Business Park Castlereagh Road Belfast, BT5 6BQ  02890 400 400 http://www.fenixsolutions.net/ 
FGL Telecom Ltd 71-75 Shelton Street Covent Garden, London, WC2H 9JQ  020 3129 6111  
FGS Services UK Ltd Suite 1 Morley Carr House Morley Carr Road Low Moor Bradford, West Yorkshire, BD12 0RA  01274 973 600  
Fi Real Estate Management Ltd Canal Mill Botany Bay Botany Brow Chorley, PR69AF  01257263010  
Fibernet (UK) Ltd Olympus House, Calleva Park, Aldermaston, Berks RG7 8SA  0118 881 9122  
Fibre Options   http://www.fibre-options.com/ 
Fibre1 Ltd 4 North Guildry Street, Elgin, IV30 6RN  01343811110  
FibreWifi   http://www.fibrewifi.com/ 
Fidelity Group Ltd Newton House Newtown Road Henley on Thames OXON, RG9 1HG  http://www.fidelity-group.co.uk/ 
Fidget Ltd 85-91 West Wycombe Road, High Wycombe, HP112LR  01494448252  
Fido Telecom Ltd Palladium House, 1-4 Argyll Street, London W1F 7LD  020 3519 0000 https://www.fido.net/telecoms/ 
FidoNet Registration Services Ltd 10-16 Tiller Road, London, E14 8PX  0845 004 5045 http://www.fido.net/ 
Fieldgate Data Services Ltd Standsure House Billings Road Dalton-in-Furness Cumbria, LA13 0PF  01229 808133  
Fifosys Ltd Unit 7 Hampstead West 224 Iverson Road West Hampstead London, NW6 2HL  020 7644 2600  
Fifteen Communications Ltd Park Hall Business Village, Stoke on Trent Staffordshire, ST3 5XA  01782 337898  
FiftySeven57 Ltd 25 White Lion Road, Amersham, HP79HZ  07912787175  
Finarea   http://www.telediscount.co.uk/ 
Finarea SA Viale Carlo Cattaneo 1, Lugano 6900, Switzerland  +41 91 922 5431 http://www.finarea.ch/ 
Fincomp Services Ltd 103 Woodland Way Winchmore Hill, London, N21 3PY  020 8099 7301  
Fine Line Telecommunications Management Ltd Global House Harfreys Road Harfreys Ind Estate Great Yarmouth, NR31 0LS  01493 441114  
Fine Memorials Ltd 18 St Mary Street, Bridgwater, TA6 3LY  01278456119  
Fineline Communications Ltd Third Melrose Roxburghshire, TD6 9DR  08700 505 015  
Firbanks PC Maintenance Ltd 4 Paxton Close Hedge End, Southampton, Hampshire, SO30 0PB  01489 858 109  
Fire IT Ltd Wilton House 3-5 Cowbridge Hertford Hertfordshire, SG14 1PG  01992 660350  
Firefly Enterprises Ltd Unit 12 Beckford Business Centre Beckford Street, Hamilton, ML3 6NN  0870 141 7114  
Firefly IT Solutions Ltd Horizon Scotland Forres Enterprise Park Forres Moray, IV36 2AB  01309 676 151  
Firenet Ltd 4 Windsor Avenue Lurgan, County Armagh, BT67 9BG  01428 808 080  
Firewave Technology Services Ltd 354 Omega Court Cemetery Road, Sheffield, S11 8FT  0203 475 7870  
First Base Solutions Ltd Pebworth Barn Back Lane Pebworth Stratford-upon-Avon, CV378XA  01789721746  
First Choice PCs Ltd 27F Pennygillam Way Pennygillam Launceston Cornwall, PL15 7ED  01566777627  
First Class Comms Ltd The Hive 6 Beaufighter Road Weston super Mare North Somerset, BS24 8EE  0845 180 1000  
First Comms Ltd 10 glenmarsh close Higher Bebington, wirral, ch63 2lb  01514887494  
First Computer Services Ltd Crown Yealm House Pathfields Business Park, South Molton, EX36 3LH  01271 446105  
First European Telecom Ltd Ramsay Court 111 Ecclesall Road South, Sheffield, S11 9PH  0800 195 9200  
First For Energy Group Ltd Arrowe Brook rd, Wirral, CH490AB  01513633966  
First Line Support Ltd Hamilton House 1B Howard Street, Oxford, OX4 3AY  01865 260 220  
First Media Ltd 23 Castalia Square, London, E14 3NG  416 847 5240 (ext 5271)  
First Number   http://www.wavecrestcom.com/ 
First Office Systems Ltd 14-16a Albion Road Royal Tunbridge Wells, Kent, TN1 2NH  01892 676000 http://www.firstoffice.co.uk/ 
First Rate Telecom Ltd 1st Floor Kent House Romney Place Maidstone Kent, ME15 6LH  0844 779 2250  
First Solution Technologies Ltd County House St Mary's Street, Worcester, WR1 1HB  01905 729992 http://www.firstsolution.co.uk/ 
First4coms Ltd 10 Hatherley Road, Gloucester, GL1 4PN  01452 314 000  
Firstcom Ltd 66 Medway, Crowborough, TN6 2DN  01892 578666  
Firstnet Solutions Ltd Saville Mount, Leeds, LS7 3HZ  08452160001  
Firstsound Ltd Forge House, 39/41 Cambridge Road, Stanstead, Essex CM2 8BX   
Fitsystems Ltd B4 Enterprise Point Melbourne Street Brighton East Sussex, BN2 3LH  01273 773 302  
Fitzrovia IT Ltd 29/30 Fitzroy Square, London, W1T 6LQ  020 7874 8845  
Fivebars Mobile Ltd 111a Winchester Road, Eastleigh, SO53 2GH  03332402345  
Fivenines UK Ltd 19 Howley Park Business Village Morley, Leeds, LS27 0BZ  0113 201 2130  
FJC Systems Ltd Allied Business Centre Potter Place Skelmersdale Lancashire, WN8 9PW  01695 550907  
Flair 4 IT 155 Whiteladies Road, Bristol, BS8 2RF  0117 959 5143  
Flamble Ltd 131 St. Peters Court High Street, Chalfont St. Peter, SL9 9QJ  02089975000  
Flaming Ltd Cambrai Court 1229 Stratford Road Birmingham West Midlands, B28 9AA  0121 655 2730  
Flat Telecom (dissolved November 2013)   
Fleet Telecom Ltd Cranford House 24A Longley Road Rainham Kent, ME8 7RU  01634 264751  
Fleur Telecom Ltd Mitchell House, Southampton Road, Eastleigh, Hants SO50 9XD  033 3320 4020 http://fleurtelecom.co.uk/ 
Flex Information Technology Ltd Harvard House Grove Technology Park Wantage Oxon, OX12 9FF  0333 101 7300  
Flex Managed Services Ltd 1 Brassey Road Old Potts Way Shrewsbury Shropshire, SY3 7FA  01743 235 000  
Flexgrid Ltd One Gloucester Place, Brighton, BN1 4AA  0203 1371877  
Flexible Services Ltd 9 Nuneaton Road, Fillongley, CV7 8EZ  024 7692 0050  
Flexicomm (UK) Ltd Unit 2 Corinium Industrial Estate Raans Road, Amersham, HP6 6JQ  01494 412635  
FlexOn LTD 17 Victoria Road East Thornton Cleveleys,, FY5 5HT  0845 263 8239  
FleXtel Ltd FleXtel House, The Commons, Sandbach,
Cheshire CW11 1EG 
0870 3210 1000 https://www.flextel.com/ 
Flex-Telecom Ltd The Workshop off Princess Street Sandal Wakefield West Yorkshire, WF1 5NY  0845 180 1414  
Flip Solutions Ltd Unit 8 29 Mill Lane Welwyn Herts, AL6 9EU  01582 464 090  
Flonet Ltd 291 HITCHIN ROAD BEDFORDHIRE, LUTON, LU2 7SL  02036170260  
Flonix Ltd Unit 2, InverAlmond Way, Perth, PH1 3UQ  0333 101 0000  
Flower Telecom Ltd The Big Peg, 120 Vyse Street, Birmingham B18 6NF  033 3700 0444 https://flowertelecom.uk/ 
FLR Spectron Ltd Unit 4 Orpington Trade Centre, Murray Road, Orpington, Kent BR5 3SS  0845 899 9900 https://flrs.co.uk/ 
Fluency Communications Ltd 1 Broughton Market, Edinburgh EH3 6NU  0845 874 7000 http://www.fluency.net.uk/ 
Fluent Communications Ltd The Estate Yard, New barn, Eridge road, Tunbridge wells, Kent, TN3 9JR  01892532373  
Fluent Voice and Data Solutions Ltd New Barn The Estate Yard Eridge Road Tunbridge wells, TN3 9JR  01892532373  
Fluent2 Ltd 42-44 Bishopsgate, London, EC2N 4AH  020 7430 6690  
Fluid IT Ltd Old Poplar Library 45 Gillender Street, London, E14 6RN  08454740770  
Fluid Law Ltd My House 7 Road One Winsford Industrial Estate Winsford, CW7 3PZ  01606 866 500  
Fluid Network Solutions Ltd Communications House, Unit 11 Keel Row, The Watermark, Metro Riverside, Gateshead NE11 9SZ  0845 345 4313 http://www.fluidns.co.uk/ 
Fluid Tech Support Ltd 3 Summerfield Close Walton Le Dale, Preston, PR5 4NP  01772314676  
Fluidone Ltd 5 Hatfield, London, SE1 9PG  0845 868 7848  
Flyford Connect Ltd Spark House Rope Walk, Lincoln, LN6 7DQ  01522 300056  
Flying Dragon Ltd 121 Strathdon Drive, London, SW17 0PS  0845 021 2688  
FMI Ltd Voice Support Queens House 1 Leicester Place London, WC2H 7BP  020 7758 0848  
FMS Solutions Ltd    
Focus Group Europa House, Southwick Square, Southwick, West Sussex BN42 4FJ  0800 054 6100 http://www.focus-grp.co.uk/ 
Focus IT Managed Services Ltd S6 Adelphi Mill, Bollington, SK105JB  01625221077  
Foehn Ltd Goodwin House, 5 Union Court, Richmond, Surrey TW9 1AA  0844 846 2323 https://www.foehn.co.uk/ 
B2B & Retail Ltd 19 Leicester Road, Manchester M7 4AS  01617922503  
Fonehouse Business Ltd 421 New Kings Road, London, SW6 4RN  0207 384 3636  
Fonix Mobile Ltd 23 Heddon Street, London W1B 4BQ  020 8114 7000 https://www.fonix.com/ 
Fonnax Ltd 2 Chorlton Grove, Stockport, SK1 4PT  08000588228  
Force 36 Ltd Unit 2 Saffron Business Centre Elizabeth Close Saffron Walden, CB10 2NL  01799523265  
Forces Communications Ltd Bradley Court Off Maple Road, Castle Donington, DE74 2UT  0845 270 2476  
Fordata LTD Office L2a 23 Leafield Industrial Estate, Corsham, SN13 9RS  0800 098 8145  
Forefront IT Ltd Suite 205 28A Queensway Bayswater London, W2 3RX  0203 1986021  
Foresee Fixed Line Ltd Sony UK Technology Centre Pencoed Technology Park Pencoed South Wales, CF356 5HZ   
Foreseer Technology Ltd 61A Newington Green, London, N16 9PX  07960 933403  
Foresight Business Solutions Ltd Hollinwood Business Centre Albert Street Failsworth Manchester, OL8 3QL  08456210076  
Forest Communications Ltd Stable Block Warwick House 116 Palmerston Road Buckhurst Hill, Essex, IG9 5LQ  0844 844 0691 http://www.forestcommunications.co.uk/ 
Forever Systems Ltd 204 Sutton Park Road Kidderminster, Worcestershire, DY11 6LE  0843 515 0011  
Formative IT Services Ltd Flat 2, Bakers Mews 2A Underhill Street, Bridgnorth, WV16 4BB  07767334313  
Fort House Systems Ltd 100 East Street, South Molton, EX36 3DF  01769574603  
Forward Space Ltd The Old Church School Butts Hill, Frome, BA11 1HR  03333 448850  
Four County Services Ltd The Thatched Cottage 14 Ring Street Stalbridge Dorset, DT10 2LZ  01963 363 639  
Fourteen Network Services Ltd Emerald House Meadowcrodt Way Leigh Lancs, WN7 3XS  01942 369 196  
Fourth Pillar Ltd Forum 3 Solent Business Park Whiteley Hampshire, PO15 7FH  03333 44 55 11  
Fox ITC 47 Tyler Road Ratby, Leicester, LE6 0NQ  03301241827  
Foxguard Ltd Unit 9C Charles Industrial Estate, Stowmarket, IP14 5AH  01473 8 58810  
FP Cloud Networks Ltd Berkshire House 39-51 High Street, Ascot, SL5 7HY  0333 241 4077  
Fractal Telecom Services Ltd 240 Branston Road, Burton Upon Trent, DE14 3BT  0870 410 8989  
Franzcom Ltd 11 Winwell Field, Wadebridge, Cornwall PL27 6UJ  0808 117 6736 http://www.franzcom.co.uk/ 
FreeCall   http://www.freecall.com/ 
FreeClix Ltd Waterside Building Old Chapel Way Broadland Business Park Norwich, NR7 0WG  01603 703 340  
Freecom Internet Services Ltd Freecom Internet Services Limited E4 Hagley Court North The Waterfront, Level Street Brierley Hill, DY5 1XF  08444 720022  
Freecomm Services 64 Fairfield Green Whitley Bay Tyne & Wear, NE25 9SD  0191 252 1543  
Freedom Communications (U.K.) Ltd Olds Approach Tolpits Lane, Watford, WD18 9RX  01923654321  
FreedomCall Ltd Hampton House, High Street, East Grinstead, West Sussex RH19 3AW  0800 279 6050 http://www.freedomcall.co.uk/ 
Octotech Ltd 30 Worthing Road, Horsham RH12 1SL  01403 603103  
Freeola Ltd 92-102 East Street Braintree, Essex, CM7 3JW  0333 003 0505 http://www.freeola.com/ 
Freerunner Net Ltd 16 Mortimer Street, London, W1T 3JL  02074360509  
Freestyle Communications 37 Alexander Gibson Way, Motherwell, ML1 3FA  0870 403 0121  
Freestyle IT Ltd 2 Murrell Green Business Park London Road, Hook, RG27 9GR  01256 760922  
Fresh PCs Consultancy Ltd 36 Livesey Avenue, Ludlow, SY8 1HN  01584 517234  
Fresh Tech Ltd 54-58 Tanner Street, London, SE1 3PH  02033973123  
FrogBox IT Ltd Mercury House Shipstones Business Centre, Nottingham, NG7 7FN  01158220600  
Frogmore Solutions Ltd Fistral Heath Road, Brixham, TQ5 9BH  01803 22 00 40  
Frontier Systems Ltd 9 Warwick Street, London W1B 5LY  020 3301 6777 http://www.fsys.co.uk/ 
Frontier Telecom LTD Office 8 Rake House Farm Rake Lane North Tyneside, NE29 8EQ  0800 124 4348  
Frontier Voice and Data Ltd Longleys Rye Road Sandhurst, Cranbrook Kent, TN18 5PG  0845 301 4100  
FTB Communications Ltd Buntsford Drive, Bromsgrove, B60 3DJ  01527 519820  
FTTC Ltd 4 Queen Street Uppingham, LE15 9QR  01572 858858  
Fubra    
Fuel Broadband PO Box 1122, Nelson, Lancs BB9 4FY  0333 003 3839 http://www.fuelbroadband.co.uk/ 
Fulcrum Technology Ltd 22 Crane Terrace, Wolverhampton, WV6 9LX  08432897252  
Fullspeed Unit 14 Louis Pearlman Centre Goulton Street Hull, HU3 4DL  01482778440  
Funview    
Furness Internet Ltd Trinity Enterprise Centre Furness Business Park, Barrow in Furness, LA14 2PN  01229 877111  
Fuse 2 Communications Ltd Liverpool Business Centre, 25 Goodlass Road, Lliverpool L24 9HJ  033 0088 0333 http://www.fuse2.net/ 
Fuse Technologies Ltd The Old Church 48 Verulam Rd St Albans Hertfordshire, AL3 4DH  02071184551  
Fuse Telecom Ltd RMT Gosforth Park Avenue, Newcastle Upon Tyne, NE12 8EG  03303 331160  
Fusion Care Solutions Ltd 12 Fusion Court Garforth Leeds West Yorkshire, LS25 2GH  0113 286 3056  
Fusion Event Production Ltd Unit 23 Lichfield Business Village, Lichfield, WS13 6QG  01543 225 877  
Fusion IT Management Ltd Oakley House 1 Hungerford Road, West Yorkshire, HD3 3AL  0845 122 1240  
Fusion Media Networks Ltd 33/41 Thamesgate House Victoria Avenue Southend on Sea Essex, SS2 6DF  08707 709101 http://www.fmn.uk.net/ 
Fusion Networks Ltd imperial works, london, ne53ed  02074288409  
Fusion Systems Ltd York House, Outgang Lane, York, YO195UP  01904436604  
FusionWiFi Ltd Unit 1 St Stephens Court, Bournemouth, BH2 6LA  01202912202  
Futter Ltd 76 Cricklade Street, Cirencester, GL7 1JN  01285 700 012  
Future Comms Inc Ltd Ocean House Bentley Way Barnet Herts, En5 5FP  0844 318 7807  
Future Communication Specialists Ltd Unit 4 The Mill, Weevil Lane, Gosport, PO12 1AX  02393873344  
Future Reliance Ltd 119 Richmond Road Kingston Upon Thames, Surrey, KT2 5BX  0845 450 3880  
Future Technologies Waterside House Cliffe Commercial Park, Huddersfield, HD1 3JD  01484 345400  
Future Voice and Data Ltd 3120 Park Square Birmingham Business Park, Birmingham, B37 7YN  03300 555 222 http://www.futurevad.com/ 
Futuretel Ltd 145-157 St Johns Street, London, EC1V 4PW  03330040041  
Fuzion Systems Ltd Unit 16 Brooke Business Park Brooke, Norwich, NR15 1HJ  08445891000  
Fxsec Ltd 20-22 Wenlock Road, London, N1 7GU  +74993482863  
Fylde Computer Solutions Ltd 4 St Georges Avenue, Thornton Cleveleys, FY5 3NH  01253 821 691  
G K M Technical Services Ltd Denmark St, Darlington, DL3 0LP  01325286348  
G T Business Solutions Ltd 6 Swan Close Whitchurch, Aylesbury, HP22 4LF  01844291656  
G2 Support Unit h Hove Technology Centre St Josephs Close, Hove Sussex, BN3 7ES  0845 307 3443  
G2 Voice Ltd Alpha Tower Suffolk Street Queensway Birmingham, B1 1TT  0333 666 5000  
G3Comms Ltd Harling House 47-51 Great Suffolk Street, London, SE1 0BS  020 7075 1472  
G5 Technologies Ltd 5 Abercrombie Court Prospect Road Westhill Aberdeenshire, AB32 6FE  01224 443 896  
Galactech Ltd 10 High Street, Poole, BH15 1BP  01202973800  
Galaxy Numbers Ltd IMEX Building 575-599 Maxted Road, Hemel Hempstead, HP2 7DX  0845 056 7777 http://www.galaxynumbers.co.uk/ 
Galaxy Protel Ltd Business Box 3 Oswin Road Braunstone Leicestershire, LE3 1HR  0116 344 0014  
Galaxy Telecoms & Networks Ltd Oakwwod Court City Rd, Bradford, BD8 8JY  01274449009  
Galip Systems Ltd 5a Willowbank Business Park Willowbank Road, Larne, BT40 2Sf  028 28272827  
Game Network BV Postbus 14717 Amsterdam 1001LE, Netherlands  http://www.gamenetworkbv.com/ 
Games And Computers (Uk) Ltd Inside Unit, East End, Pannier Market, Market Road, Tavistock, PL19 0AL  01822 616288  
Gamma Business Communications Ltd 2 Manor Court, Barnes Wallis Road, Segensworth, Fareham, Hants PO15 5TH  0845 521 5000 http://www.gamma.co.uk/ 
Gamma Metronet Ltd Kings House Kings Road West Newbury Berkshire, RG14 5BY  0808 168 3838  
Gamma Network Solutions Ltd Kings House Kings Road West Newbury Berkshire, RG14 5BY  0333 240 3000  
Gamma Telecom Holdings Ltd Kings House, Kings Road West, Newbury RG14 5BY  0333 240 3000 http://www.gamma.co.uk/ 
Gap Telecom 12 Ryder Crescent, Southport, PR8 3AE  01704 330 690  
Garc Ltd Unit 3A, Parkway Trading Estate, Alba Way, Trafford Park, Manchester, M32 0TL  0161 8651925  
Garnell Corporate Communications Ltd Arundel House Garnell Business Park Brownfields Welwyn Garden City, Herts, AL7 1AY  01707 321100  
Garnell Technologies Ltd Arundel House Garnell Business Park Brownfields Welwyn Garden City, Herts, AL7 1AY  01707 321 100  
Gary Page 15 shelley ave, bristol, bs21 6hd  01275875616  
Gatenby Services Ltd Keward Court Jocelyn Drive Wells Somerset, BA5 1DB  01749 685 151  
Gateway Community Media CIC C/O Gateway Community Media CIC 125 - 128 Eastgate Centre, Basildon, SS14 1AN  01268 833978  
Gateway of Technology Ltd Acorn House Lindum Business Park, Lincoln, LN6 3FE  0800 122 3051  
GW Telecom Ltd Ephraim Phillips House 54-76 Bissell Street, Birmingham B5 7HP  0845 456 1092 http://www.gatewaytelecom.co.uk/ 
Gather Technology Ltd 3 Lombard Street, London, EC3V9AA  020 3870 4301  
GB Technologies ltd Galamoor House Netherdale Galashiels, TD1 3EY  01896 752 607 http://www.gbtscotland.co.uk/ 
GB Telecom (Scotland) Ltd Netherdale Industrial Estate, Galashiels, Selkirkshire TD1 3EY  01896 752607 http://www.gbtechnologies.co.uk/ 
Gbiz IT Ltd 9 The Wynd, Redcar, TS11 7LD  01642 477200  
GCC Innova LTD Henley House, Gloucester, GL4 3RT  01452371441  
GCI Network Solutions Ltd Global House, 2 Crofton Close, Lincoln LN3 4NT  0844 443 4433 http://www.gcicom.net/ 
GCI Telecom Group Ltd Global House, 2 Crofton Close, Lincoln LN3 4NT  0844 443 4433 http://www.gcicom.net/ 
GCIS (UK) Ltd Crompton Road, Stevenage, SG1 2EE  01438 347090  
GCM Services Ltd Unit 40 Greenway Business Centre Harlow Essex, CM19 5QE  01889 574476  
GDS Digital Services Ltd Queen Square House 18-21 Queen Square, Bristol, BS1 4NH  01179214000  
GE Telecom Ltd Hammerain House Hookstone Avenue, Harrogate, HG2 8ER  0191 432 4410  
Gecom Solutions Ltd 91 Marlpool Lane, Kidderminster, DY11 5HP  01562639963  
GeekCast Media 20 Marine Close, Leigh on Sea, SS9 2RD  +44 20 8144 0029  
Geekee Ltd Eventus Business Centre Sunderland Road, Market Deeping, PE6 8FD  01778 243000  
Gekko Technology LTD Universal Square Devonshire Street North, Manchester, M12 6JH  08002790681  
GEL Holdings Ltd Suite 6 4th Floor, Alperton House Bridgewater Road wembley Middlesex, HA01EH  020 3137 6201  
Gelada Networks Solutions Ltd 26 York Street, London, W1U 6PZ  02034752234  
Gema Tech Uk Ltd Telford House Hamilton Close Houndmills Basinstoke, Hants, RG21 6YT  0845 3458888  
Gemfish IT Ltd 838 Eccleshall Road, Sheffield, S11 8TD  0845 225 5646  
GemHadar Software Ltd 5 Falcon Way Yately, Hampshire, GU46 6NY  01252 683554  
Gemini TML Ltd Unit 11, Harraby Green Business Park Carlisle Cumbria, CA1 2SQ  01228 516500  
GEN Telecom Ltd PO Box 539, Nottingham, NG3 1BR  02080992341  
Gencom Technologies Ltd Charter House 8-10 Station Road, London E12 5BT   
General Communications UK LTD 33 Lambourne Crescent, Cardiff, CF14 5GF  02920752628  
General Technology Ltd 5 Fairchild Place, London, EC2A 3EN  020 7375 0000  
General Telecom (UK) Ltd P.O. Box 126, St Helens, WA11 7FL  0870 758 5555  
General Telephone & Telegraph    
Generation Productions Ltd 6 Lilac Road Ormesby, Middlesbrough, TS7 9DF  0844 357 0432  
Generation Telecom    
Genesis Computers UK 9 Severn Street, Newtown, Powys  07401648147  
Genesis Intrerface Telecom Ltd Britania House Northfleet Industrial Estate Lower Road Northfleet, DA11 9BL  020 3500 0010  
Genesis IT & Telecommunications Ltd Francis House Meadowcroft Business Park Pope Lane Whitestake, PR4 4BA  0845 050 8950  
Genesis Telecom Ltd BT9 7GU  02890 662 500 http://www.genesistelecom.co.uk/ 
GeneSys Developments Ltd 41 Riviera Drive Southend-on-Sea, Essex, SS1 2QT  01702 462 385  
Genius PPT Ltd Cityview 6 Eagle Street, Glasgow, G4 9XA  0141 280 0275  
Genius Technical Support Services Ltd 1439 Cumbernauld Road, Glasgow, G33 1AN  0141 2126135  
Geniyisis Geniyisis House Berkeley Close Ross Court Estate, Ross-on-Wye Herefordshire, HR9 7XL  01989 566 893  
Genmar (UK) Ltd Unit 12, The links, Raynham Road Bishops Stortford Hertfordshire, CM24 8NJ  01279 210088  
Gentoo Construction Ltd Ravensworth House, Gateshead, NE110HF  01914870505  
Gentoo Tolent Ltd Ravensworth House, Gateshead, NE110HF  01914870505  
Genuine IT Solutions Ltd 10 Fig Court Woodmill Road, London, E5 9GH  020 3411 1866 http://www.genuineitsolutions.co.uk/ 
Genuine Solutions   http://www.genuine-solutions.co.uk/ 
Genxsolutions Ltd 27 Gloucester Place, London, W1U 8HU  020 8099 5813  
Geoborders   http://www.geoborders.com/ 
Geostream Solutions Ltd Suite 17 Brunts Business Centre Samuel Brunts Way, Mansfield, NG18 2AH  01623423615  
Geotel Communications Ltd 8 Sycamore Drive Bury St Edmunds, Suffolk, IP32 7PW  01284 705 339  
Get A Faster Broadband 41 Priory Lane Penwortham, Preston, PR1 0AS  01772743853  
Get Comms Right Ltd Britannia House 11 Glenthorne Road, Hammersmith, W6 0LH  02080902971  
GET Communications Pendle Innovation Centre Brook Street Nelson Lancashire, BB9 9PU  0845 838 9840  
Get Dotted   http://www.getdotted.com/ 
Getech Ltd Solutions Centre Knightsdale Road, Ipswich, IP1 4JQ  01473 240470  
Getfirst Ltd 6 Beechwood Bowdon Altrincham Cheshire, WA14 3DW  0161 928 8840  
G–Force Communications Ltd Vale House Business Centre Aston Lane North Whitehouse Vale Runcorn, WA7 3PA  01928 715 724  
Ggr Communications Ltd De Salis House De Salis Drive, Droitwich, WR9 0QE  01905825900  
GHM Communications Ltd 5 The Boundary, Wheatley Road, Garsington, Oxford OX44 9EJ  0845 058 4668 https://www.ghmcommunications.com/ 
Ghost Telecom Ltd 3rd Floor, Denmark Court, 18 Market Place, Wokingham RG40 1AL  0118 979 6884 http://www.ghosttelecom.com/ 
Giacom World Networks Ltd 1 Priory Court Saxon Way, Hessle, HU13 9PB  0333 332 0555  
Giakonda Ltd 3 Humphrey St, Swansea, SA1 6BG  01792 422 616  
Giant Computers Ltd The Old Cobblers The Green, Elstead, GU8 6DD  08448470251  
giffgaff   http://www.giffgaff.com/ 
Gigaclear (also covered Rutland Telecom)   http://www.gigaclear.com/ 
Gigaquad IT Solutions LTD 3 Staples Close, clevedon, BS21 5BL  07954801606  
Gigler   http://www.gigler.co.uk/ 
Giotech Ltd Bryson House, 1st Floor 131 Church Elm Lane Dagenham Essex, RM10 9RR  020 7183 2494  
Giraffe Connected Solutions Ltd Fusion Hive North Shore Road, Cleveland, TS18 2NB  01642 939730  
GJ Beckett and Associates Ltd Gj Beckett & Associates Limited Units 6-7 Saturn House Calleva Park, Aldermaston Berkshire, RG7 8HA  0118 9409000  
glantel   http://www.glantel.com/ 
GlemNet Unit 1/2 Thayers Farm Road, Beckenham, Kent BR3 4LZ  020 8639 0230 http://glemnet.com/ 
Glenfield Software Ltd 7 Eaton Court Road Colmworth Business Park St Neots Cambridgeshire, PE19 8ER  01480 407 700  
Glide Utilities Ltd Alpha Tower Suffolk Street Queensway Birmingham, B1 1TT  08006 348 631 http://www.glide.uk.com/ 
Global 4 Communications Ltd Global House Rusper Road, Horsham, RH12 4QR  01403 272 910 http://www.global4.co.uk/ 
Global Biz Solutions Ltd 30 craig road, london, tw10 7jt  02037239009  
Global Cable Installations LTD 16 Othello Drive, Salford, M30 0QX  07840873183  
Global Crossing (UK) Telecommunications Ltd 5th Floor, 9 St. Clare Street, London EC3N 1LQ   
Global Electroteks Ltd 37 High Street, London W3 6ND  07747 867885  
Global Gossip LTD 62 Britton Street, London, EC1M 5UY  0203 215 0600  
Global Networks International Ltd 16 Commercial Way Abbey Road, London, NW10 7XF  0845 2418000  
Global Nomi Telecomunicacoes E Servicos LDA Global Nomi c/o 4th Floor, The Tower Building 11 York Road London, SE1 7NX  020 7620 0700  
Global Reach Networks Ltd 6/F Exchequer Court, 33 St. Mary Axe, London EC3A 8AA  020 7173 1700 http://www.pccwglobal.com/ 
Global Telecall Ltd 1 Fowler's Court, Chipping Norton, Oxon OX7 5FW  020 8099 9069 http://www.voiceblade.com/ 
Global Telecom Ltd PO Box 2059 Watford, Herts, WD17 1XR  08700 55 56 57  
Global Telecom Group Ltd 140 Bushey Mill Lane, Watford Herts, WD24 7PB  0330 440 1000  
Global Telecommunications Ltd Palamos House 67 High Street, Lymington, SO41 9AL  0800 953 4050 http://www.gt.uk.com/ 
Global Telecoms Ltd Unit 11 Mallusk Enterprise Park, 2 Mallusk Drive, Newtownabbey, Co. Antrim BT36 4GN  http://www.topupdial.co.uk/ 
Global Telelinks   http://www.globaltelelinks.com/ 
Globalcharge    
Globalnet It Innovations Ltd 1 Cedar House Chandlers Way, Southend on Sea, ss2 5se  02030059650  
Globalnet Telecom Ltd 1–3 The Coach House, 36a Castlegate, Newark NG24 1BG  0844 880 2010 http://www.globalnet-telecom.com/ 
Globe2 Ltd 33 York Rd, Leicester, LE15TT  03333 446441  
Globecom International LLC 5904 18th Ave, Brooklyn, NY 11204, USA  (212) 380-1828 http://www.globecoms.com/ 
Glo-Networks Ltd 6 Old Meadow Hill, Bridgend, CF31 5EW  03302230033  
Gloucester Telecom Ltd Kemp House 160 City Road, London, EC1V 2NX  01452348640  
Glow Networks Ltd Unit 2, Palace Court, 250 Finchley Road, London, NW3 6DN  02036757160  
GML Networking Technologies Mumford Buildings 27-29 Thorpe Road Kirby Cross Essex, CO13 0LT  01255 851 999  
Go Broadband Ltd 176 Cricklewood Broadway, London, NW2 3EB  02082083893  
GO Telecom Ltd Towerpoint 44 North Road, Brighton, BN1 1YR  03332220888  
go2 Convergence Ltd Taylor Business Park, 1 Cedar Court risley Warrington, WA3 6BT  01925 768250  
Go4 Communications Ltd Building 5 Dane Road Sale Manchester, M33 7BZ  01614462772 http://www.go4cp.co.uk/ 
Go52 LTD 123 Clapton Common, London, E5 9AB  02035191818  
Gold Telecom Ltd Unit 1 St John's Mews, 13 St John's Road, Hampton Wick, Kingston Upon Thames KT1 4AN  020 8614 4860 http://www.goldtelecom.co.uk/ 
Golden Technology 115 Innovation Forum Frederick Road Salford Manchester, M6 6FP  01612800085  
Goldfield Computing Lrd Unit 8 Griffin House 24 Station Road Morley Leeds, LS27 8JW  0845 900 7801  
Goldmicro Ltd 2 Broad Street Wells, Somerset, BA5 2DN  01749 678 997  
Gomango Ltd 14 Hazelwood Lower Warberry Road, Torquay, TQ11TU  01803 368304  
Gopal Consulting Ltd 26 York Street, London, W1U 6PZ  0330 050 7575  
Gordon Kirk Ltd 1 Orchard Gardens Floyds Lane Ledbury Herefordshire, HR8 1LR  01531 636 281  
Gould Electronics Two Way Radio Ltd 7 Scorrier House Workshops Scorrier Redruth Cornwall, TR16 5AU  01209 821804 http://www.gouldelectronics.co.uk/ 
Gower Business Systems Ltd 2 New Mill Court Enterprise Park, Swansea, SA7 9FG  01792762646  
Gower Coast IT Solutions Ltd 29 Waterloo Place Brynmill, Swansea, SA20DE  01792687120  
GP Network Solutions Ltd 56a Albury Road Merstham, Surrey, RH1 3LS  01737 646 770  
GPD Communications Ltd Unit 3 Landscape Close, Weston-on-the-Green, Bicester, Oxon OX25 3SX  01869 342142 http://www.connect2tele.com/ 
GPS Telecoms Ltd Suite 9 Stowmarket Business Centre Ernest Nunn Road Stowmarket Suffolk, IP14 2ED  0870 730 7000  
Grace Solutions Ltd 5 Iceni Way, Cambridge, CB4 2NZ  01223 909802  
Grade Computer Solutions Ltd 12 Mallard Way Pride Park, Derby, DE24 8GX  01332369087  
Gradwell Communications Ltd Westpoint, James St West, Bath BA1 2DA  01225 800800 https://www.gradwell.com/ 
Gradwell Communications Ltd First Floor Westpoint James Street West Bath, BA1 2DA  01225 800800 http://www.gradwell.com/ 
Granero Data Systems The Threshing Barn Elberton, BRISTOL, BS35 4AG  01454 416769  
Grant McGregor Ltd The Merchants Hall 22 Hanover Street, Edinburgh, EH2 2EP  01316037910  
Grantbrook services 83 ducie street, manchester, m1 2jq  08454747883  
Grapevine IT Ltd The Old Workhouse Higher Union Road, Kingsbridge, TQ7 1EQ  01548898183  
Grapevine Telecom (Bath) Ltd 19-25 Nuffield Road, Poole, BH17 0RU  0845 123 6677  
Grapevine Unifield Communications Ltd Unit 5 Clyst Works Clyst Road Topsham Devon, EX3 0DB  0844 375 5547  
Gravitas ICT Ltd 8 Locke King Close, Weybridge, KT13 0TA  0333 320 3425  
GreatValue Telecom 6 Harbour Court 6 Cliff Street, Bridlington, YO15 2NH  0330 3500 690  
Greaves Solutions Ltd Laddenbrook Bagstone Road Bagstone Wotton under Edge, GL12 8BD  01454809010  
Greaves West & Ayre Ltd 1-3 Sandgate Berwick Upon Tweed, Northumberland, TD15 1EW  01289 306688  
Green Cloud IT Ltd Lower Whittle Farm, Heywood, OL10 2QE  01612505000  
Green Duck Ltd Technology House Western Way Bury St Edmunds Suffolk, IP33 3SP  01284 700015  
Green Fields Technology 93-99 Upper Richmond Road, London, SW15 2TG  0845 200 7800  
Green ISP Unit 7 Victoria Works Victoria Road Hebden Bridge West Yorkshire, HX7 8LN  0845 058 0659 http://www.greenisp.net/ 
Green Lane Solutions Ltd 1 Lyric Square, London, W6 0NB  020 3008 6049  
Green Telecom Ltd Seven, The Power House Higham Mead, Chesham, HP5 2AH  0149 477 5500 http://greentelecom.co.uk/ 
Green To Talk Ltd 14 Church Street Braunton, North Devon, EX33 2EL  07599 991 515  
Greenbeam Orion Ltd Orion House Heath Lane, Tiverton, EX16 8LU  01884 221122  
Greenfrog Computing Ltd The Coach House at the Old Rectory Swathwick Lane Wingerworth Chesterfield, S426QW  01246520000  
Greenlight Innovation Ltd Unit A Tayside Software Centre Prospect Business Centre, Dundee, DD2 1TY  01382843843  
Greenpoint Computer Services Ltd 109 Cove Road Farnborough, Hants, GU14 0HF  01252 544 788  
Greg Brown and Lucy Blake 97a Sprowston Road, Norwich, NR3 4QJ  01603451810  
Gregory Micallef Associates Ltd 8th Floor Yeoman House 63 Croydon Road London, SE20 7TS  020 8778 7759  
Group 3 Technology Ltd Hogan House, 20 High Street, Aldridge, West Midlands WS9 8LZ  01922 453394 http://www.group3technology.net/ 
Grove Business Solutions Ltd Wyrehurst George Lane Wyre Piddle Pershore, WR10 2HX  01905 700710  
GTEQ Solutions Ltd Eden Point Three Acres Lane Cheadle Hulme Cheshire, SK8 6RL  0844 811 0844 http://gteq.solutions/ 
GTI Computers Ltd 219 Victory Business Centre Somers Road North Portsmouth Hampshire, PO1 1PJ  0845 543 8077  
GTPC Ltd 10 Dodmoor Grange, Telford, TF3 2AW  03331017100  
Gtt Emea Ltd 6 St Andrew Street, LONDON, EC4A 3AE  00 44 20 7489 7200  
Guaranteed Telecom Ltd 2 Bridge Avenue, Berkshire, SL6 1RR  0203 039 3910  
Guernsey Airtel    
GVX Telecom Ltd Business Cube,, 2 - 7 Clerkenwell Green, London, EC1R 0DE  02071833603  
Gyrocom Ltd 8 Station Road,, Chertsey, KT16 8BE  08456123994  
Gzilch Ltd 31 Museum Street, London, WC1A 1LG  020 7692 2650  
Hackfive Broadband 27 Windermere Avenue, Billingham, TS231jl  07494774826  
Hale Communications Europe Ltd 23 Ashley Road, Altrincham, WA14 2DP  01619291580  
Halifax Computers Ltd 55 Pellon Lane Halifax, West Yorkshire, HX1 5SP  01422 257 777  
Halo Communications Ltd Unit5 Block5 Moorfield Industrial Estate Kilmarnock Ayrshire, KA2 0DP  01563 558 844 http://www.thinkhalo.co.uk/ 
Halstone Technology Ltd Unit 4 Brock Way Newcastle-Under-Lyme Staffordshire, ST5 6AZ  01782557937  
Hampshire Business Computers Ltd 1 Park Court Premier Way Abbey Park Industrial Estate Romsey, SO51 9DN  01794 830 326  
Hampton Communications Ltd 10-12 Rodney Road, Portsmouth, PO4 8SY  02392006380  
Handel Capital Ltd 73 The Common Parbold, Lancashire, WN8 7AE  01257806298  
Hanhaa Ltd International House, 1 St Katharine's Way, London E1W 1UN  https://www.hanhaa.com 
Hanndi Ltd 2 Elm Mews Horbury, WAKEFIELD, WF4 5HB  01924 274093  
Hannon Telecom Ltd Dissolved on 26 April 2016   
Harry Shaw Business Computers 29-31 Leicester Street Bedworth, Warwickshire, CV12 8GG  024 7645 5444  
Hartwood Services 70 Armstrong Road Old Basing, Basingstoke, RG24 8NU  01256 334755  
Harwood Brittain Technology Ltd Castle Malwood, Minstead, SO43 7PE  023 8081 2888  
Hash Tag Tech and Games 119 York Road, Hartlepool, ts26 9dl  07900801803  
Hastingwood Securities Ltd Docklands Business Centre 10-16 Tiller Road, London, E14 8PX  020 7345 5000  
Haven Communications 97 Charles Street Milford Haven, Pembrokeshire, SA73 2HL  0870 78 79 700  
Haventrust Ltd Suite 501 417 Wick Lane, London, E3 2JJ  00442071484542  
The Hawkify Group Ltd The Workstation 15 Paternoster Row, SHEFFIELD S1 2BX  01143863233  
Hay Systems Ltd Watermark, Alba Campus, Livingston EH54 7EG  01506 605260 http://www.hslmobile.com/ 
Hayes IT Consultancy Ltd M25 Business Centre 121 Brooker Road, Waltham Abbey, EN9 1JH  020 3515 5150  
HB Telecom (UK) Ltd HB House Foleshill Enterprise Park Courtaulds Way Coventry, CV6 5NX  0870 750 3666  
HBP Systems Enterprise House Woodhouse Road, Scunthorpe, DN16 1BD  01724 400 300  
HBS Consultants Ltd 11 Mill Lane Barrowden Oakham Rutland, LE15 8EH  08000 199 850  
HBT Communications   http://www.hbtcommunications.com/ 
Headstart Enterprises Ltd 29 Sutton Road, Kidderminster, DY11 6QN  01562 740 375  
Headway Technology Services Shaw House Shaw Road, Wolverhampton, WV10 9LE  01543 888 150  
Health In Touch Ltd Sucklings Yard Church Street Ware Herts, SG12 9EN  01920 459 800 http://www.healthintouch.co.uk/ 
Healthcare Computing Ltd Unit 10, millstream Trading Estate, Ringwood, BH24 3SB  01425483865  
Heart Business Systems Ltd Unit 314/315F The Big Peg Vyse Street, Birmingham, B18 6NF  0844 556 7076  
Heartwood Computer Services Ltd 7 Field View Halifax West Yorkshire, HX3 5LT  01422 330662  
Helios IT Ltd Blaris Industrial Estate 5 Altona Road, Lisburn, BT27 5QB  028 9094 5542  
Hello Internet Hello Internet 2619 Chenoweth House Blackwater Truro, TR48UN  01305300700  
Hello Telecom (UK) PLC 19 Musters Road, West Bridgford, Nottingham NG2 7PP  0115 852 6600 http://www.hello-telecom.co.uk/ 
HELP4IT Ltd 61 Queen Street, London, EC4R 1AF  0845 257 4448  
Helpdesk Communications Ltd 21 Court Lane Erdington, Birmingham, B23 6NS  0845 872 1316  
Helpdesq Ltd Leith Lodge Horsham Road Beare Green Dorking, RH5 4PF  01306 711 112  
Hemshore Ltd 30 Leeming Road, Borehamwood, Herts WD6 4DU   
Henderson Morgan Ltd 163 Station Road, Addlestone, KT15 2BA  07506733166  
Hexsol Ltd Sophia House 28 Cathedral Road, Cardiff, CF11 9LJ  02920026291  
HFC Systems Ltd 1 Roseberry Court Stokesley Business Park, Stokesley, TS9 5QT  01642 712393  
HFH Communications    
Hi Tel UK Ltd 26 Waldegrave Road Dagenham, London, RM8 2QD  020 7137 1719  
HIBU (UK) Ltd One Reading Central, Forbury Road, Reading RG1 3YL  0118 358 3300 https://business.yell.com/ 
High City IT Ltd Kemp House 160 City Road, London, EC1V 2NX  02033556516  
High Span Networks Ltd 14 Alban Park Hatfield Road St. Albans Herts, AL4 0JJ  01727 810 860  
Highland IT Ltd 24 Redwood Cr, inverness, IV2 6HB  01463221189  
Highland Network Ltd 10 Lotland Street, Inverness IV1 1PA  0808 168 0088 http://www.highnet.com/ 
Highland Network, t/as HIGHnet   http://www.highnet.org.uk/ 
Highland Wireless & IT Solutions   http://highlandwireless.co.uk/#about_us/ 
Highlander Computing Solutions Ltd Systems House Shepcote Office Village 333 Shepcote Lane Sheffield, S9 1TG  0114 2923800  
HighSpeed Office Ltd 50 Leman Street, London E1 8HQ  020 7847 4500 http://www.hso.co.uk/ 
Highworth UK Ltd Rowan House 28 Queens Road Hethersett Norwich, NR9 3DB  01603 813 924  
Hiline Communications Ltd Woodgates Pardhouse Lane Stanford Bridge Worcester, WR6 6RX  01886 812731  
Hill Data Systems Ltd 39 Oldfield Road, Salisbury, SP1 3GQ  01722 448 888  
HindSight IT & Telecoms Ltd Chapel Street Pontnewydd, Newport, NP441DL  01633 740046  
HIPTAC Services Ltd Basepoint Business Centre Basepoint Centre, Lincoln Road Highwycome, Bucks, HP12 3RL  0844 335 6398  
Hi-Tech Installations Shaw Park Office Centre Silver Street, Huddersfield, HD5 9AF  01484 550 760  
Hiteishee Ltd 24-26 Arcadia Avenue, London, N3 2JU  08009998080  
Hive Technology and Digital Consultancy Services Ltd 145 edge lane wavertree, Liverpool, L7 2PL  03303500501  
Hive Telecom Ltd Global House, 2 Crofton Close, Lincoln LN3 4NT  01256 857000 http://www.hivetelecom.com/ 
HiWiFi   http://hiwifi.co.uk/ 
HJS Essentia Ltd 12-14 Carlton Place, Southampton, SO15 2EA  023 8023 4222 http://www.hjsessentia.co.uk/ 
HJS Technology   http://www.hjsessentia.co.uk/ 
HM Network Ltd Cotton Court Church Street, Preston, PR1 3BY  01772 508121  
Hmt Sales And Marketing Ltd Challange House Sherwood Drive Bletchley Milton Keynes, MK3 6Dp  03304005440  
Holdfast Systems Ltd 4 Duffins Orchard, Ottershaw, KT16 0LP  01932 497990  
Holistic Technologies Ltd DBIC Ten Pound Walk Doncaster South Yorkshire, DN4 5HX  01302 235 050  
Holker Network Solutions Ltd Holker Business Centre Burnley Road Colne Lancs, BB8 8EG  01282 859 806 http://www.holkerit.co.uk/ 
Home Group Ltd Home Group Ltd 2 Gosforth Parkway, Gosforth, NE12 8ET  0845 1553222  
Home Network (UK) Ltd 8 Eavestone Grove, Harrogate, HG3 2XY  07960 668 999  
Home Office    
homelineuk 22 MILBANK, DURHAM, TS248NF  01429 293012  
Home-save.co.uk Ltd Kathleen House 10 James Road, Birmingham, B11 2BA  0845 263 6943  
Hooper Technical Solutions Ltd 17 MARKET HILL, COGGESHALL, CO6 1TS  07398209465 http://www.hoopertechnical.co.uk/ 
Horizon Telecom Networks Ltd Unit 4, Longwood Court Love Lane Cirencester Gloucester, GL7 1YG  01285 656 421 http://www.horizontelecom.co.uk/ 
Horizon Telecom UK   http://www.horizontelecom.co.uk/ 
Horizone Ltd Futura House Station Road Maldon Essex, CM9 4LQ  01621 843 366  
Horsebridge Network Systems Ltd Unit 4 Herrick Way Staverton Technology Park Cheltenham, GL51 6TQ  08448150510  
Hospedia Ltd Landmark Place, 1-5 Windsor Road, Slough SL1 2EJ  0845 414 6000 http://www.hospedia.com/ 
Hospitality Networks and Services Plus UK Ltd 126-128 New Kings Road, London, SW6 4LZ  020 7348 6770  
Host My Office Ltd Calverley House 55 Calverley Road, Tunbridge Wells, TN1 2TU  03333110020  
Hosted Connections Ltd 13 Widecombe Close, Bedford, MK403BL  01234860055  
Hosted Phones Ltd The Old Courthouse Chapel Street Dukinfield Cheshire, SK16 4DT  0161 885 2085  
Hosted Technology Ltd 25 LIme Street,, London, EC3M 7HS  020 7952 6666  
Hosted Telephone Systems Ltd 150 Minories, London, EC3 1LS  020 7098 2544  
Hosting Systems Ltd Bellringer Road Stoke on Trent, Staffs, ST4 8GB  0845 888 8001  
Hosting Techniques Ltd 5 Chancery Gate Business Centre, Twyford, RG10 9LT  01189241412  
Simulant Systems Ltd Popeshead Court Offices Peter Lane, York YO1 8SU  08712663676  
Hostingus   http://www.hosting.us.com/ 
hostITlocal Ltd Unit R, Eurocentre North River Road Great Yarmouth Norfolk, NR30 1TE  01493 249449  
Hotality IT Solutions Ltd View Point, Basing View, Basingstoke, RG21 4RG  01256 592150  
Hotech Ltd 11 Approach Road, London, SW20 8BA  020 8544 9321  
Hotel Guest Technology Ltd The Ridge Blunsdon, Swindon, SN26 7AD  03302020530  
Hotel Telephone Maintenance (HTM) Ltd HTM Ltd 33 Walker Avenue Wolverton Mill East Milton Keynes, MK12 5TW  0845 4580 690  
Hotline Energy Plc    
Howsons Ltd Kirkshead Westhouse Ingleton North Yorkshire, LA6 3NJ  01524 241 422  
HP Networks Ltd 2 Lislasley Road, Dungannon, BT71 6TA  02890538411  
HPCB.co.uk Unit 8 Wisdom facilities Centre 42 Hollands Rd, Haverhill, CB9 8SA  08718712100  
HQ Telecom Ltd Unit 51 Waterside Trading Centre Trumpers Way London, W7 2QA  0844 901 0044  
HTL Telecom Ltd 23 Nether Hall Avenue Great Barr, Birmingham, B43 7EU  0121 360 4824  
Hub Business Solutions Ltd 5 Fewster Road Nailsworth, Glos, GL6 0DH  01453 833 684  
Hub Network Services Ltd St Brandons House 29 Great George Street, Bristol, BS1 5QT  01179200045  
Hubtel Communications Ltd Unit C6 HRS House Garretts Green Lane Garretts Green Birmingham, BB33 0UE  0870 7744075 http://www.hubtelcomms.co.uk/ 
Huddle Business Solutions Ltd 8 Giles Close Hedge End, Southampton, SO30 2TH  07528807247  
Hudson Hill Consulting Ltd Lovell House Birchwood Park, Warrington, WA3 6FW  01925294780  
Hugh Symons Alder Hills Park 16 Alder Hills Park Poole Dorset, BH16 4AR  01202 714316  
Hughes Consortium Ltd The Technology Suite 6A Lines Street, Morecambe, LA4 5ES  01524238999  
Hughes Network Systems Ltd Sunrise Parkway Linford Wood, Milton Keynes, MK14 6LS  01908 425300  
Hull Telecoms Ltd Systech IT Solutions, Skilling's Lane,, Hull, Hu151EN  01482778703  
Hullabaloo Communications Ltd Nelson House 1a Church Street Epsom, KT17 4PF  0845 612 8585  
HulloMail Ltd 27-33 Paul Street, London, EC2A 4JU  https://www.hullomail.com/ 
Humology Ltd 33-35 Daws Lane, London, NW7 4SD  03300103030 http://www.humology.com/ 
Hutchinson Networks Ltd 3 Wester Shawfair, Edinburgh, EH22 1FD  +44 (0)131 554 3438  
Hutchison 3G UK Ltd Tate House, Watermark Way, John Tate Road, Hertford, Herts SG13 7NQ  01992 502000  
Hutchison Ports UK Ltd Tomline House The Dock, Felixstowe, IP11 3SY  01394 604611  
Hutchison Technologies Ltd Innovation Centre 1 Harrison Road Dundee Angus, DD2 3SN  01328 835013  
HW Technology Ltd 120-124 Towngate, Leyland, PR25 2LQ  0845 5048989  
Hybrit LLP Royal Ordnance Depot Weedon Bec, NORTHAMPTON, NN7 4PS  07890266864  
HYPE Comz Ltd 16th Floor Terminus House Terminus Street, Harlow, CM201XA  01279677010  
Hyperoptic Ltd 200 Shepherds Bush Road, London W6 7NL  0333 332 1111 https://www.hyperoptic.com/ 
I Aberdeen Ltd Navigator House 77 Waterloo Quay, Aberdeen, AB11 5DE  01224 418 238  
I Active 225 Norberry Road Norberry London, SW16 4TU  07932 017 575  
I Data Solutions (UK) Ltd Parkgate House, Deeside Industrial Park, Welsh Road, Deeside CH5 2LR  0844 847 6768 http://www.idsu.co.uk/ 
I Want Stuff Ltd 2 Parnall Road Fishponds, Bristol, BS16 3JG  0844 893 2151  
I.A.Z.F.S Ltd 15 Peckover Street,,, Bradford, Bd1 5BD  01274 405932  
I.net Internet Services Ltd 1B Market Place Grantham, Lincolnshire, NG31 6LQ  01476 512 920  
I.R.I.S.   http://www.iris-incar.co.uk/ 
I.T Communications Ltd 20-24 High Street, Rayleigh, Essex SS6 7EF  01702 668836 http://www.it-communicationsltd.co.uk/ 
i4commsltd County House St Marys Street, Worcester, WR1 1HB  03333600055  
I7 Technologies Ltd Hampton Heath Industrial Estate Malpas Cheshire, SY14 8LU  01948 820787  
Ian Dart Consulting Ltd 14 Abbey Heights, Askam in Furness, LA16 7HT  01524 805550  
Ian Johnston 59 Malmesbury Park, Runcorn, wa7 1xd  07436151000  
Ian Renwick Argyle House 2a Venetia Road, London, W5 4JD  02082800380  
IAP(UK) Ltd Old Bakehouse Woodend Road Coalpit Heath Bristol, BS36 2LN  0117 911 4390  
IB2I Ltd 145-157 St John Street, London, EC1V 4PW  0333 305 8100  
iBasis Regina House, 4th Floor, 1 Queen Street, London EC4N 1SW  020 3451 4211 http://ibasis.com/ 
Ibcos Computers Ltd Abacus House Acorn Business Park Ling Road Poole, Dorset, BH12 4NZ  01202 714 200  
IBIT Solutions Ltd Enterprise House, Courtaulds Way, Coventry, CV65NX  02476687042  
iBrowse Ltd Sovereign House 212-224 Shaftesbury Ave, London, WC2H 8HQ  0845 508 2537  
IBSC    
IBTS Ltd The Old Church Quicks Road, London, SW19 1EX  0330 323 0152  
Ibub Communications Ltd Glenone Business Park Kilrea Road Portglenone Ballymena, BT44 8PE  028 2765 7309 http://www.ibub.co.uk/ 
iCard European Telecommunications (Ireland) Dissolved on 15 September 2015   
ICC Networks Ltd Monarch House, 7 Queen Street, Leeds LS1 2TW  0113 350 5030 http://www.iccnetworks.com/ 
Ice Comms   http://ice-comms.co.uk/ 
Ice Media (London) Ltd 24-26 Arcadia Avenue Finchley Finchley London, N3 2JU  020 3358 0000  
Icecolo   http://www.icecolo.com/ 
Icewyche Ltd 178 Monton Road Monton, Manchester, M30 9GA  0871 200 2280  
iCloud Support Ltd Melfort Road The Laurels The Laurels Crowborough, TN6 1QT  01273906609  
Icom Unit 3 Brent Mill Business Park South Brent, TQ10 9YT  01364 649310  
ICOM Network IP Ltd 2M Trade Park Beddow Way, Aylesford, ME20 7BT  01622797600  
Icom Telecommunications Ltd 3 Kings Row Armstrong Road Maidstone Kent, ME15 6AQ  01622 655218  
iComm Communications Ltd 37 Caxton House Kings Park Road, Northampton, NN3 6LG  0333 006 5254  
Icomm Protect & Connect Ltd 109 Festing Grove, Southsea, PO4 9QE  02392006581  
ICON I.T Services Ltd 9 Devonshire Square, London, EC2M 4YF  0844 4780533  
Iconism Ltd Priory Road, Rochester, ME2 2EG  01634 715571  
Iconology Ltd The Old Barn Park Farm Brabourne Ashford, Kent, TN25 6RG  01303 813 700  
IcoSys Computers & Communications Ltd Harman House Dunlop Road, Ipswich, IP2 0UG  01473 211 330  
Icron Network Ltd 58 Marsh Wall, London E14 9TP  020 7170 0400 http://www.vectone.com/ 
ICS 1989 Ltd    
iCS Communications   http://www.icscomms.co.uk/ 
iCS Connect   http://www.icscomms.co.uk/ 
Intelligent Communication Services Ltd Norlands Colham Green Road, Hillingdon, Middlesex UB8 3QQ  01895 232 917  
iCS Network Services   http://www.icscomms.co.uk/ 
ICS Networks    
ICT Studio Ltd 9 Eton Place, Plymouth, PL1 5DT  01752 710810  
iCT4 Ltd Pool Innovation Centre Trevenson Road, Redruth, TR15 3PL  01209 311312  
Ictn ltd Unit 1 MW Power Building Sandbach Road, Staffordshire, ST7 3RA  01782 406406  
ICUK Computing Services Ltd Suite 5, Metropolitan House, 38-40 High Street, Croydon CR0 1YB  0845 009 9175 https://www.icuk.net/ 
iD Mobile   http://www.idmobile.co.uk/ 
iDance LTD 2 Rowantree Road, Enfield, EN2 8QA  02083661987  
Idaq   http://www.idaq.com/ 
Idaq Networks   http://www.idaqnetworks.com/ 
i-dash Ltd Suite 3 Orchard House Tebbutts Road St Neots Cambs, PE19 1AW  0845 026 1145  
iData Com Ltd Vision House Denbigh Road, Mold, CH7 1FT  08448476766  
Idea Data Services LTD Basepoint Tewkesbury Oakfield Close Tewkesbury Business Park Tewkesbury, GL20 8SD  01684 773857  
Ideal Network Solutions Ltd Suite C 411 Warrington Road Culcheth Warrington, WA3 5SW  08432 120 060  
IDEAL PC Solutions Ltd 114 Hither Green Lane, REDDITCH, B98 9BW  01527591493  
Ideal Telecoms Ltd HPF House Park Road Toddington Bedfordshire, LU5 6HG  08006 529 863  
IDN Ltd 25-27 Thames Street, Hampton, Middx TW12 2EW  020 8408 8899 http://www.idnltd.com/ 
IDNet Studio Bridge House, Bridge Street, Hitchin, Herts SG5 2DF  01462 480092 http://www.idnet.net/ 
IDNet Home Phone   http://www.idnet.net/ 
IDT Global Ltd Telephone House, 69-77 Paul Street, London EC2A 4NQ  020 7549 6000 http://www.idt.net/ 
iFace Solutions Ltd 81,High street,, Lincoln, LN1 2HA  08001 448844  
IGC Fixed Line Ltd 8-9 Horsted Square Bellbrook Business Park Uckfield East Suusex, TN22 1QG  01825 768 118  
Ignite Business Communications   http://www.ignite.co.uk/ 
Ignite Service Provider Ltd 3 Buckingham Court Rectory Lane Loughton Essex, IG10 2QZ  0845 9000 417  
iHub 2 Ltd The Innovation Centre, Milton Park, 99 Park Drive, Milton Park, Oxon OX14 4RY  020 3019 0000 http://www.ihub.co.uk/ 
iHub UK Ltd In administration June 2015   
IITAC Ltd Suite 306 Warth Business Centre, Bury, BL9 9NB  0161 763 0300  
IITL Ltd Heath House Cheadle Road Uttoxeter Staffordshire, ST14 7BY  0843 2891247  
IJNetworks Ltd 2 Eastview St Cuthberts Lane, Hexham, NE46 2ES  01434 603 999  
Ikiji Ltd The Idea Factory 20 Mearns Street, Aberdeen, AB11 5AT  03450950050  
IKM Network Communications Ltd Intec House St Nicholas Close, Fleet, GU51 4JA  01252 365700  
Ikona (I.T.) Ltd The Coach House Leckwith Road, Cardiff, CF11 8AU  0845 226 3070  
IKONIX Telecoms Ltd IKONIX House Chart Hill Road Staplehurst Kent, TN12 0RW  0844 576 3459  
ilicomm Technology Solutions Ltd Vincent Court Hubert Street Aston Lock Birmingham, B6 4BA  0121 289 3434  
iLomond Ltd East Dualt Killearn, Glasgow, G63 9QW  03333 445500  
Ilux Ltd 3 Cabot House Compass Point Business Park Stocks Bridge Way St Ives, PE27 5JL  01480 501500  
IM Software Ltd PO Box 219, Orpington, Kent BR6 0WJ  http://www.im-software.co.uk/ 
Image Logistics Ltd Unit 15 Fisherrow Ind.Est Newhailes Road, Musselburgh, EH21 6EH  0131 653 1300  
Imbil Consultancy Services Ltd Flat 1, 12 -14, ST Mary's Road,,, London, SE15 2DW  07861474856  
Imdad Hussain Toller Business Centre 451 Toller Lane, Bradford, BD9 5NX  08455046511  
Imerja Ltd Hallmark House, Paragon Business park, Chorley New Road Horwich Bolton, BL6 6HG  0870 8611488  
IMEX Technical Services LTD The Threshing Barn Cowage Farm Business Centre Foxley, Malmesbury Wiltshire, SN16 0JH  01666 827600  
Imicro UK LTD 25 Sturdee Avenue, Gillingham, Kent  01634 280795  
IMImobile Europe Ltd Tempus Court Bellfield Road, High Wycombe, HP13 5HA  01494 750500  
Immedia Broadcast Ltd 7 - 9 The Broadway, Newbury, RG14 1AS  01635572800  
Immervox Ltd 22-24 Hornsby Square, Southfields Business Park, Basildon, Essex SS15 6SD  0800 652 4012 https://www.immervox.com/ 
Immineo Ltd 1st Floor Airedale Building Scott Street Keighley, BD21 2SP  0333 3202186  
Impact Computing and Consulting Ltd Karlynda House Blackpool Road Kirkham Lancashire, PR4 3RE  01772 684 282  
Impact IT Solutions UK Ltd Unit 27B Osprey Court Hawkfield Business Park Whitchurch Bristol, BS14 0BB  0117 2020200  
Imperial Telecom Ltd 46 Syon Lane Isleworth, Middlesex, TW7 5NQ  020 8144 1786  
Impetus Business Solutions (Nw) Ltd PENDLE INNOVATION CENTRE BROOK STREET NELSON LANCASHIRE, BB9 9PU  01282377921  
Impirius Ltd The Croft Bascote Heath Southam Warwickshire, CV47 2DW  01926 812163  
IMS Health Ltd 7 Harewood Avenue, London, NW1 6JB  020 3075 4555  
IMS Technology Services Ltd Carillon House Chapel Lane Wythall Birmingham, B47 6JX  01564 821630  
Imtex Technologies Limied 18 Linford Forum Rockingham Drive Milton Keynes Buckinghamshire, MK14 6LY  08447 644444  
In 2 Networks 1 South Road, Newton Abbot, TQ12 1HQ  01626331756  
In2com Ltd Kandoy House, 2 Fairview Strand, Dublin 3, Ireland  1800 911 800 http://in2tel.ie/ 
IN2NET Solutions Ltd 145-157 St John Street, London, EC1V 4PY  020 8906 8169  
Incito Ltd 9 Bankhead Drive Sighthill Industrial Estate, Edinburgh, EH11 4EJ  0131 202 5732  
Inclarity Communications Ltd 3-5 Swallow Place, Oxford Circus, London W1B 2AF  020 8634 0600 http://www.inclarity.co.uk/ 
inCloudOne Ltd inCloudOne House 1 North Poulders Farm Sandwich Kent, CT13 9JE  0800 0546 111  
Incom Business Systems Waterside, Trafford Wharf Road, Manchester, M17 1WD  0161 876 5353 http://www.incom-business-systems.co.uk/ 
Incommsec Ltd 780-790 Finchley Road, London, NW11 7TJ  020 3368 6301  
Incovo Ltd 5 Nasmyth Court, Houston Industrial Estate, Livingston West Lothian EH54 5EG  0845 450 1780 http://www.incovo.com/ 
Independent Fibre Networks Ltd Driscoll 2 Ellen Street, Cardiff, CF10 4BP  0845 051 1669  
Independent Telecom Brokers Ltd ISDN Buildings Ingatestone Road Stock Essex, CM4 9PD  08456 126 123  
Independent Telecommuications Consultants Ltd Chaucer House 4-6, Upper Marlborough Road St Albans Hertfordshire, AL1 3UR  08451 270 270  
Independent Telephone Service Richmond House Tontine Street, Blackburn, BB1 7ED  01254 244920  
Indexscope Ltd Hillingdon House 386-388 Kenton Road Harrow Middlesex, HA3 9DP  0845 004 6006  
Boundary Communications Ltd 148 Leadenhall Street, London EC3V 4QT  0800 032 3621  
Indigo Intergrated Solutions Ltd Units C3 and C4 Romany Works Business Park Wareham Road Poole, BH16 6JL  01202 237205  
Indigo IT Ltd The Office 92 Guildford Road Lightwater Surrey, GU18 5RP  01483 472 200  
Indigo IT Solutions 58 Tattenham Way, Tadworth, KT20 5NJ  0203 0044789  
Indigo Marketing Ltd Winchester House Deane Gate Avenue, Taunton, TA1 2UH  01823 704050  
Indigo Telecom Group Castlegate Business Park Caldicot, Monmouthshire, NP26 5AA  01291 435500  
Industrial Webs Ltd 282 LICHFIELD ROAD FOUR OAKS, Birmingham, B74 2UG  02030067800  
Indy Ware Ltd Ground Floor Media House 31 Freehold Street Northampton, NN2 6EW  0845 034 6499  
Ineedbroadband Ltd 385 Newbrook House, Alfreton rd., Nottingham, NG7 5LR  01158718379  
Inenco Group Ltd    
i-Net Communications Group Plc 68 Lombard Street, Suite 608, London EC3V 9LJ  0800 810 0100 http://www.inetplc.com/ 
i-Net Communications UK Ltd 25 Ribbesford Avenue Oxley, Wolverhampton, WV10 6DU  0800 270 7676  
i-net Solutions The Technology Centre Station Road Framlingham Woodbridge, IP13 9EZ  01728666140  
iNet Telecoms Ltd Sovereign House, 227 Marsh Wall, London E14 9SD  020 7043 5555 http://www.voipfone.co.uk/ 
Inetwork Ltd 320a Romford Road, London, E7 8BD  020 7100 0830  
Infinite Codeworks Ltd 231 The Vale, London, W3 7QS  0203837 1340  
Infiniti-e Ltd Karlsruhe House 18 Queensbridge Road, Nottingham, NG2 1NB  0845 226 1914  
Infinity Business Solution Ltd Shinfield Grange Cutbush Lane Reading Berkshire, RG2 9AF  0330 2020 278  
Infinity Business Systems Ltd Tara House Hilltop Road Hamilton Business Park Leicester, LE5 1TT  0844 779 8779  
Infinity Direct Ltd Bramingham Business Centre Enterprise Way Luton Bedfordshire, LU3 4BU  01582 705060  
Infinity System Solutions Ltd Innovation Centre Festival Drive, Ebbw Vale, NP23 8XA  0330 9000 009  
Infinity Technology Group Ltd 34 Frederick Street, Sunderland, SR1 1LP  03300539151  
Infinity Technology Solutions Ltd The Coach House Camden Road, Tunbridge Wells, TN1 2PY  0845 450 4600 http://www.infinity.uk.com/ 
Influential Computers Ltd PO Box 5025 Checkendon, Reading, RG8 OWX  01491 680036  
Info Sec Partners The Long Barn Tufton Warren Hampshire, RG28 7RH  0845 257 5903  
Infologic Telecom Ltd 45 Alston Drive Bradwell Abbey, Milton Keynes, MK13 9HB  01908 711330  
Infomatics Support Services Ltd C/O ACCOLOGY USN BOLTON ARENA ARENA APPROACH HORWICH BOLTON, BL6 6LB  01244940942  
Inform Billing Solutions Ltd Unit E The Barton Fields Centre Barton Blount Church Broughton Derbyshire, DE65 5AP  01889 220531 http://www.informbilling.co.uk/ 
Inform Telecom Ltd Unit E The Barton Fields Centre Barton Blount Church Broughton Derbyshire, DE65 5AP  01889 220531  
Information Knowledge Associate Ltd Manchester House 113 Northgate Street, Bury St. Edmunds, IP33 1HP  01616695800  
Information Technologies First Associates Ltd 16 Willow House Newhouse Business Park Grangemouth, FK3 8LL  01324 664713  
Infosystems Ltd The Barn, Bridge Farm Holt Lane, Ashby Magna Lutterworth Leicestershire, LE17 5NJ  01455 201 000  
Infotech Solutions (UK) Ltd 2 Ashford House Beaufort Court Medway City Estate Rochester, Kent, ME2 4FA  0845 466 6500  
Inframatic Ltd 5 Oakway, Shortlands, Bromely, Kent BR2 0LJ  077 1180 9709  
Infrasys Ltd Suite 2 2nd Floor Colman House, Solihull, B930HL  01217949363  
Ing Telecom Ltd Unit 10 Berol House 25 Ashley Road London, N17 9LJ  02088015555 http://www.ingtelecom.co.uk/ 
Ingenious Ltd Park House 22 Park Street, Croydon, CR0 1YE  020 8662 4620  
Ingenitech Ltd 11a ladybridge Road Cheadle Hulme, Cheshire, SK8 5LL  0161 485 5464  
Ingenium Ltd 9 Westcot Wantage, Oxfordshire, OX12 8QB  01235 751 155  
inIT Together Ltd 44 Northfield Gardens Highwoods Colchester Essex, CO4 9SS  01206 804874  
Initial IT Services Ltd Kings House St Johns Square, Wolverhampton, WV2 4DT  0330 380 1138  
Initial Technologies Ltd 12 Whittingham Road Longridge, Preston, PR3 2AA  01772 780 296  
Inkspotwifi Ltd 3A Dublin Meuse, Edinburgh, EH3 6NW  0131 556 4034  
Innov@te Ltd 25 Stanely Hill Amersham, Buckinghamshire, HP7 9HP  01494 727 546  
Innovacom Ltd Bridgford House Heyes Lane Alderley Edge Chesire, SK9 7JP  0800 019 4522 http://www.innovacom.co.uk/ 
Innov@te Ltd Unit A Acorn Business Parl Ling Road Poole Dorset BH12 4NZ  0330 999 1000  
Innovation IT Consultants 4 Saffon Way Whiteley Fareham Hampshire, PO15 7LQ  01489 605 504  
Innovative Cloud Services Ltd Keepmoat Stadium Stadium Way, Doncaster, DN4 5JW  01302247530  
Innovative Energy Solutions Ltd 1st Floor, Beech House 58, Commercial Gate, Mansfield, NG18 1EU  01623627879  
InnovTech Ltd Evolve Business Centre Cygnet Way Houghton Le Spring Tyne & Wear, DH4 5QY  0333 344 9800  
Innsyde Innovation and Management Ltd 70 Warwick Street, Birmingham, B12 0NL  08445858588  
Innzone Ltd Premier House 112 Station Road Edgware Middx, HA8 7BJ  0870 9919205  
Inside I.T. Solutions Ltd 11 Market Hill, Southam, CV47 0HF  0845 475 5549  
Inside View Ltd Charwell House Wilsom Road, Alton, GU34 2PP  01420 388200  
Insight Network Solutions Ltd 87 North Road, Poole Dorset, BH14 0LT  07545845732  
Inspira Technology Group Ltd 71-75 Shelton Street Covent Garden, London, WC2H 9JQ  0843 462 0085  
Inspired IT Ltd Hazelhurt Farm Valley Road Hayfield High Peak, SK22 2JP  01663 308 676  
Inspired Technology Services Ltd 80 Harvey Drive, Whitstable, CT5 3QT  03333201021  
Inspires Technology Ltd The Apex 2 Sheriffs Orchard, Coventry, CV1 3PP  07917014507  
Instafone PLC Taylor House, Bradford Road, Dewsbury WF13 3EG  01924 514 4444  
InstallingIT A116 The Business Park Runcorn, Cheshire, WA7 4QX  01925 398 666  
Intacloud Ltd 1 Fore Street, London, EC2T 9DT  0203 773 4445  
Intalect Ltd Centurion House Station Approach, Hinckley, LE10 1UE  08456448860  
Intavoice Ltd Unit 4 Sweetlake Business Village Longden Road Shrewsbury, SY3 9EW  01743232316  
Intech Ltd Link House, 273 Crown Lane Horwich, Bolton, BL6 7DG  01204 675675  
Intech Fusion Ltd Millworks Field Road, Busby, G76 8SE  0845 680 8903  
In-Tech Telecom Ltd Victory Close Chandlers Ford Industrial Estate Chandlers Ford Hampshire, SO53 4BU  02380 242525  
InTechnology Plc Cardale House, Cardale Court, Beckwith Head Road, Harrogate HG3 1RY  01423 877400 http://www.intechnologyplc.com/ 
Integr8 Managed Services Ltd Montpellier House Montpellier Drive, Cheltenham, GL50 1TY  01200 833880  
Integra Telecommunications Ltd 28 Stephenson Road Leigh-on-Sea, Essex, SS9 5LY  0800 254254  
Integra-ICT Ltd T/A Anglia Telecoms Gateshead Close Sandy Beds, SG19 1RS  01767 692 792  
Integralcomm.co.uk Ltd 5-6 Titan Way Britannia Enterprise Park Lichfield Staffordshire, WS14 9TT  01543 412 250  
Integrated Building Infrastructure Consulting Ltd 8 Barnes Wallis Road, Fareham, PO15 5TU  01489 285140  
Integrated Business Systems Ltd 24 Cottesbrooke Park Heartlands Business Park Daventry Northamptonshire, NN11 8YL  01327 302999  
Integrated Business Telecommunications Ltd Charles House Lower Road Great Amwell Ware, Hertfordshire, SG12 9TZ  0845 678 0777  
Integrated Digital Services Ltd Grange Court Raby Mere Road Raby Wirral, CH63 4JH  0151 353 3838  
Integrated network services ltd Room C022 The Heath Boulevard The Heath Business Park, Runcorn, WA7 4QX  01928238390  
Integrated Open Network Systems Ltd Venture West Greenham Business Park Newbury Berkshire, RG19 6HX  0845 003 9470  
Integrated Telecom Ltd 9 Downsway, Northampton, NN4 0TD  0774 007 3685  
Integrity IT Ltd Unit 2 Hope House Farm, Martley, WR6 6QF  01886887811  
Integrity Link Services Ltd 17 Greenbrae Circle Bridge of Don, Aberdeen, AB23 8NB  01224794711  
Integrity Office Ltd Unit 14 Montgomery Way Rosehill Industrial Estate, Carlisle, CA1 2RW  01228 594 682  
Integritytech Ltd Unit 30 Moor Park Industrial Centre Tolpits Lane Watford, WD18 9SP  01923 297430  
Intelesis Ltd Units 30 & 31 Petre House Petre Street Sheffield, S4 8LG  0844 844 4555 http://www.intelesis.co.uk/ 
InteliCall Ltd The Barn Rickstones Road, Rivenhall, CM8 3HQ  01245 807109  
Intelligent Communication Services Ltd Norlands Colham Green Road, Hillingdon, Middlesex, UB8 3QQ  01895 232 917  
Intelligent Communication Solutions Ltd 14 Whitehill Gardens Chester le Street, Durham, DH2 2NE  0191 388 6987  
Intelligent Communitycations 125 1 Bath Street, Frome, BA11 1DG  07859062200  
Intelligent IT Solutions Ltd The Counting House Dunleavy Drive, Cardiff, CF11 0SN  02920100070  
Intelligent Mesh Technology Ltd 126C Mill Road, Cambridge, CB1 2BQ  01223 573 170  
Interact Communications Ltd 16-18 Monument Street, London, EC3R 8AJ  0845 8733110  
Interactive Advertising ltd 9 Greenacres Avenue, Wokingham, RG41 5SX  01189773763  
Intercity Technology Ltd 101-114 Holloway Head, Birmingham B1 1QP  033 0332 7933 http://intercity.technology 
Intercity Telecom Ltd 101-114 Holloway Head, Birmingham B1 1QP  033 0332 7933 http://intercity.technology 
Intercommunications Ltd 12 Ashley Road, Bournemouth, BH1 4LQ  08006899986  
Intercontec Ltd Basepoint Business Centre, Bromsgrove, B60 3ET  01527 907 650  
Interdata Ltd 141a Bury New Road Whitefield, Manchester, M45 6AA  0161 740 7400  
Interface (DCB) Technology Ltd Tyler Close Normanton, West Yorkshire, WF6 1RL  01924 224929  
Interface Advantage Ltd Abbey House 1650 Arlington Business Park Theale Reading, RG7, 4SA   
Interfuture Systems Ltd Kemps Farm Business Park London Road, Balcombe, RH17 6JH  08455210822  
Interhost LLP MTB House North Farm Road, Tunbridge Wells, TN2 3DH  0208 150 1459  
Internal Comms (Installations) Ltd 33 Roman Way, Longridge Road Preston preston, PR2 5BD  01772 701002  
Internal Systems Ltd Verulam House 110 Luton Road Harpenden Herts, AL5 3BL  0845 894 4906  
International Equipment Ltd Unit 1 Lawson Hunt Industrial Park Broadbridge Heath, West Sussex, RH12 3JR  01403 224450  
Internet & Telecoms Ltd 8 West Street Fochabers, Moray, IV32 7DJ  0800 849 9499  
Internet Central Ltd Innovation Centre Keele Science Park Keele Staffordshire, ST5 5NB  01782 667788 http://www.ic.uk/ 
Internet Connections Ltd The Chapel, Villa Road, Cheddleton, ST13 7EA  0800 2888 680  
Internet Direct (Chichester) Ltd Fernhurst House Clayton Road Selsey West Sussex, PO20 9DB  0845 638 7171  
Internet Engineering Ltd Unit 24 Ffordd Richard Davies St Asaph Business Park, St Asaph, LL17 0LJ  01745586070  
Internet For Business Ltd 387 Union Street Aberdeen, Aberdeenshire, AB11 6BX  0800 027 0110  
Internet Services (EU) Ltd Regus House Falcon Drive Cardiff Bay Cardiff, CF10 4RU  0844 555 5490  
Internet Software Solutions Ltd Whateleys Drive Kenilworth, Warks, CV8 2GY  01926 678407  
Internet Strategies (UK) Ltd Bon Accord House Riverside Drive, Aberdeen, AB11 7SL  01224213995  
Internet Technology Products Ltd 2 Magellan Terrace Gatwick Road, Crawley, RH10 9PJ  0845 052 4949  
Internetworks Mobile Ltd Maxi House Halesfield 20, Telford, TF7 4QU  01952 684 333  
Internexus Networks Ltd 15 Esplanade, St Helier, Jersey JE1 1RB  http://www.internexus.co.uk/ 
Internic Ltd 3 Stratfield Saye 20-22 Wellington Road, Bournemouth, BH8 8JN  01202 232101  
Interoute Communications Ltd 31st Floor, 25 Canada Square, Canary Wharf, London E14 5LQ  020 7025 9000 http://www.interoute.com/ 
Interoute Communications Ltd Walbrook Building 195 Marsh Wall, London, E14 9SG  020 7025 9000  
Interoute Networks Ltd 31st Floor, 25 Canada Square, Canary Wharf, London E14 5LQ  020 7025 9000 http://www.interoute.com/ 
Interpro Technology Solutions Ltd Unit F8 Fareham Heights, Fareham, PO168XT  03301133330  
Intime Consultants Ltd 6 The Parade, Prince's Street, Nuneaton, CV11 5NR  02476998863  
Intouch Advance Ltd Mercury Quays Ashley Lane Shipley West Yorkshire, BD17 7DB  0844-5680000  
IN-Touch Calls Ltd M25 Business Centres 121-Brooker Road, Waltham Abbey Essex, EN9 1JH  020 8507 1693 http://www.in-touchcalls.co.uk/ 
InTouch Communication Services Ltd Olympic House, 28-42 Clements Road, Ilford IG1 1BA  020 7377 8464 http://www.phonate.co.uk/ 
Intouch Communications Ltd Centaur House, Ancells Business Park, Ancells Road, Fleet, Hants GU51 2UJ  01252 241000 http://www.intouchcomms.co.uk/ 
IntraLAN Group Ltd Kings Avenue House Kings Avenue New Malden Surrey, KT3 4DY  020 8401 7000  
IntraLAN Group Ltd Kings Avenue House Kings Avenue New Malden Surrey KT3 4DY  020 8401 7000  
Intrascape Communications Ltd POBOX 16563, LONDON, SW16 4ZT  0845 638 1052  
Intrinsic Technology Ltd Haydock, Merseyside, WA12 0JQ  14 The Parks  
intuitive Cradley Enterprise Centre, Halesowen, B63 2QB  01384 913914  
Intuitive IT (UK) Ltd Benedon Rd, Birmingham, B26 2UR  07970 416008  
Intuitive Systems & Networks Ltd PO Box 6215 Greenham Thatcham Berkshire, RG19 9GD  020 3276 2476 / 01635 490 42  
intY Ltd 170 Aztec West, Bristol, BS32 4TN  01454 640 500  
Invade International Ltd Orchard Street Business Centre, 13-14 Orchard Street, Bristol BS1 5EH  033 3344 0784 http://www.invade.net/ 
Invatech IT Solutions Ltd Invatech House 12 Keane Close Blidworth Nottinghamshire, NG21 0QY  0845 258 1600  
Inverclyde Telecommunications Ltd 3 Finbraken Drive Gourock, Inverclyde, PA19 1BF  01475 632 152  
Investroute Ltd The Old Barrel Store Draymans Lane, Marlow, SL7 2FF  08453 700 800  
Invew Telecom Ltd 1st Floor Swan Building 20 Swan Street, Manchester, M4 5JW  0161 833 1811  
Invicta Telephone Sales Ltd 12 Montacute Road, Tunbridge Wells, TN2 5QR  01622870550  
Invictanet Ltd PO Box 206 Pevensey, East Sussex, BN24 9FX  0333 101 4400 http://www.invictawiz.com/ 
Invictus At Home Ltd Enterprise House Tenlons Road Warwickshire Nuneaton, CV10 7HR  01922665522  
Invoco Ltd 55-57 High Street, Bromsgrove, Worcs B61 8AJ  01527 306000 https://www.invoco.net/ 
Invomo Ltd Global House, 2 Crofton Close, Lincoln LN3 4NT  0844 443 4433 http://www.gcicom.net/ 
Invosys Ltd New Bridgewater House, Mayfield Avenue, Worsley, Manchester M28 3JF  0161 444 3333 http://www.invosys.com/ 
Iomart Hosting Ltd Lister Pavilion West of Scotland Science Park, Glasgow, G20 0SP  01419316400  
ion IT Ltd Office 7 180 Attercliffe Road, Sheffield, S4 7WZ  08449911963  
IOVOX Ltd 153 Westbourne Grove, Notting Hill, London W11 2RS  020 7099 1070 https://www.iovox.com/ 
IP Base Ltd 24 Broad Street, Salford, Manchester M6 5BY  0161 219 8200 http://www.ipbase.co.uk/ 
IP Exchange Ltd Chester House 150-154 Cross Street, Sale, M337AQ  03300580699  
IP Infrastructures Ltd Denby Dale Road Calder Grove, Wakefield, WF4 3QZ  0870 160 3537  
IP Integration Ltd Attenborough House 15 Bennet Road, Reading, RG2 0QX  0118 918 4640  
IP Labs Communications Ltd Unit 9490 13 Freeland Park Wareham Road Poole, BH16 6FH  02033558988  
IP Logic LTD 50 Ardlough Road, Londonderry, BT47 5SP  02871343430  
IP Network Communications Ltd IPNC 7 Joydens Wood Road Bexley Kent, DA5 2HS  0845 1651 360  
IP Office Northwest Ltd Richmond House 120 Victoria Road Wallasey Wirral, CH45 2JF  0845 009 5544  
IP Phone Solutions Ltd Beck House, 77a King Street, Knutsford, Cheshire WA16 6DX  0844 474 9000 http://www.ipphonesolutions.com/ 
IP River Ltd Park Barns Ruleholme,, Irthington, CA6 4NQ  03300 553 554 http://www.ipriver.co.uk/ 
IP Solutions UK Ltd 24 Monument Street, London, EC3R 8AJ  08000 928 128  
IP Voice Networks Ltd 57 High Street, Rowley Regis, West Midlands B65 0EH   
IP Wholesale Ltd Collingbourne House, Spencer Court, 140-142 Wandsworth High Street, London SW18 4JJ  0333 360 0333 http://www.ipwholesale.co.uk/ 
iPinnacle Ltd 60 Southwark Bridge Road, London, SE1 0AS  020 7401 4780  
ipsolutionsni Ltd 152 Albertbridge Road, Belfast, Bt5 4GS  02895622110  
Ipswich Computer Services Ltd Unit 1 Hill Farm Barns Ashbocking Road Henley Ipswich, IP6 0SA  01473 785 845 http://www.ipswichcomputers.com/ 
IPV6 Ltd Berrycentre, Chiltern Drive, Surbiton, Surrey KT5 8LS  070 4000 1111 http://ipv6.ltd.uk/ 
IPX Telecom Ltd Hallmark House Downham Road Ramsden Heath, RM11 1PU  0808 178 8940  
IPX Voice Ltd IPX Voice Ltd 11-13 Watling Street Fenny Stratford Milton Keynes, Buckinghamshire, MK2 2BU  020 3348 8770  
IP-Xchange Ltd 3 Wesley Gate Queens Road, Reading, RG1 4AP  020 3006 1414  
IQ Broadcast Ltd 7th Floor Crown House North Circular Road, London, NW10 7PN  02089653920  
IQ in IT LTD Vine House 143 London Road Kingston Upon Thames Surrey, KT2 6NH  020 8166 8716  
iQual Ltd Crown House Home Gardens, Dartford, DA1 1DZ  08447704206  
Iqunity Ltd Building 114, Bedford Technology Park Thurleigh Bedford BEDFORDSHIRE, MK442YP  08704792754  
iRack Ltd Elizabeth House Victoria Street Openshaw Manchester, M11 2NX  01617110537  
I-Ras Solutions Ltd Decimal House Thomas Lane Redcliff Bristol, BS1 6JG  0845 634 0601  
IRG Computers Ltd Unit 14 Cross Hands Business Workshops Cross Hands, Llanelli, SA14 6RE  01269 500 055  
Iris Global Telecom LLP Europa House, Southwick Square Hawley Road Dartford Southwick, BN42 4FJ  01273874100  
IRL Consulting Ltd 24 Crosby Hill Drive, Camberley Surrey, GU15 3TY  01276 516319  
Iron Dome Ltd 10 Armstrong Close, Walton on thames, KT12 2JQ  02033580203  
IRQ Systems Ltd 15 Montgomery Close, Ivybridge, PL21 0FG  01752895797  
ISC Networks Ltd Solar House Stukeley Business Centre Huntingdon Cambridgeshire, PE29 6EF  01480 421000  
isdn datacom Ltd    
iSimplicity Ltd 45 Stockmans Way, Belfast, BT9 7ET  02890664002  
ISL Initiative Solutions Ltd Victory House 400 Pavilion Drive Northampton Business Park Northampton, NN4 7PA  01604 641000  
ISN Telecom Business Services Ltd 16 Oakhill Road, Doncaster, DN2 5NX  0131 2020 321  
Isomob Ltd Global House, 1 Ashley Avenue, Epsom, KT18 5AD  01372740763  
ISPITT Ltd 13 Castlecombe Drive, London, SW19 6RR  020 8789 7523  
IT All Figures Ltd 3 Rosemary Lane, Lower Stondon, SG16 6NG  01462418641  
IT Ambulance Ltd Units 3A/3B, St Martins Courtyard Chapel Lane Zeal, Nr. Warminster Wiltshire, BA12 6NZ  08000 214 999  
IT Assist The Tek-Centre 187 Baker Street Enfield Middx, EN1 3JT  0870 7771763  
IT at Work Ltd 80-100 Gwynne Road, London, SW11 3UW  020 7100 6956  
IT Backbone Ltd Unit 55 Victoria Industrial Park Victoria Road Dartford Kent, DA1 5AJ  0845 474 7602  
IT Builder Ltd Pantile Barn Waterfall Farm Lower Hatfield Road Hertford, Herts, SG13 8LE  020 3137 0026  
IT Buzz Ltd 70 Rothwell Road, Dagenham Essex, RM9 4JA  0844 484 1017  
IT Champion Ltd 33 Southernhay East, Exeter, EX1 1NX  01392 454750  
IT Clinic London Ltd 38 Goodge Street, London, W1T 2QW  02034684052  
IT Cubed Solutions Ltd Lower Dean Farm, Parracombe, EX31 4PJ  0330 20 20 321  
IT First Ltd Americas House 273 London Road Burgess Hill West Sussex, RH15 9QU  01444 237 219  
IT Genie Ltd Zurich House East Park, Crawley, RH10 6AS  0845 0945 333  
IT House Comms Ltd 39 Brookmill Road, London, SE8 4HU  02071839393  
IT Just Done Ltd 58 Berwick Road, Buxton, SK17 9PE  01246386116  
IT Kept Simple LTD Apartment 9 4 Potternewton Mount, Leeds, LS7 2FJ  0113 827 2336  
IT Lab Ltd Big Studios 1 East Poultry Avenue, London, EC1A 9PT  020 7030 3111  
IT Managed 247 Ltd 1 Fore Street Moorgate, London, EC2Y 9DT  02081236681  
IT Managed Services Ltd West Lancashire Investment Centre Maple View White Moss Business Park Skelmersdale, WN8 9TG  0845 527 8333  
It Me Services Ltd 207 Regent Street 3rd Floor, London, W1B 3HH  03333444100  
IT Needs Ltd 43 Moorland View, Rotherham, S63 6DH  07866 464 403  
IT Planning 14 Forge Steading, Banstead, SM7 2DT  01737373212  
IT Professional Services Ltd Axwell House Waterside Drive Gateshead Tyne and Wear, NE11 9HU  0191 442 8300  
IT Protocol Ltd Unit 3 Weston Farm The Street Albury, Guildford Surrey, GU5 9BZ  01483 203 000  
IT Pursuit Ltd 1 Pegasus House, Peagasus Court > Tachbrook Park Warwick, CV346LW  01572504170  
IT Resource Management Ltd Thames House St Johns Road, Sidcup, DA14 4HD  02083083300  
IT Services Grimsby Ltd 22 Wintringham Road, Grimsby, DN32 0PA  01472236221  
IT Services Support Ltd 92 Wheat Street, Nuneaton, CV11 4BH  01455554708  
IT Simplified Ltd 192 London Road Burgess Hill, West Sussex, RH15 9RD  01444 848 160  
IT Solutions 26 Fosse Road Central, Leicester, LE3 5PR  0116 262 4825  
It Sonix Uk Ltd Unit 2 Heritage Business Centre Derby Road Belper Derbyshire, DE56 1SW  0844 589 9509  
IT Support Ltd 5th Floor, Hampton by Hilton, 42-50 Kimpton Road, Luton, LU2 0FP  01582262111  
IT Support 365 Carlton House Maundrell Road Porte Marsh Industrial Estate, Calne, Wiltshire, SN11 9PU  01793 744100 - 0845 0510800  
IT Telecoms Ltd OLD TRANSCO DEPT OSWALD STREET, BURNLEY, BB12 0BY  01254394608  
IT Trouble Free Ltd Chalfont Hall Gravel Hill, Chalfont st Peter, SL9 0NP  01753336226  
it3000 Ltd 44-50 Old Christchurch Road, Bournemouth, BH1 1LN  01202 830 830  
IT4Automation Ltd Unit 3 Eclipse Estate 30 West HIll, Epsom, KT198JD  01372888025  
Italik Ltd Unit 2B Rudgate Court Walton, Wetherby, LS23 7BF  01937 848 380  
italk Ltd Unit 6, Gemini Centre, 136/140 Old Shoreham Road, Hove BN3 7BD  0845 373 4290 https://www.italktelecom.co.uk/ 
Italk Affiliate Telecommunications Ltd Unit 6, Gemini Business Centre 136/140 Old Shoreham Road Hove East Sussex, BN3 7BD  0845 373 4290  
iTalk247   http://www.italk247.com/ 
ITC Communication Services Ltd 30 Orchard Road St Annes, Lancashire, FY8 1PF  01253 783 990  
ITC Service Ltd 39 Swan Road Swan Indunstrial Estate, Washington, NE38 8JJ  0191 416 2002  
Itc Telecoms Simplified Ltd Unit 3 Campus Road Listerhills Science Park Bradford, BD1 1HR  08456 520450  
ITCS UK Ltd 1 NORTH RD, BRIDGEND IND EST, BRIDGEND, CF313TP  01656660016  
Itec Support Ltd 3 Fountain Street Nailsworth, Gloucestershire, GL6 0BL  0845 057 0570 http://itec-support.co.uk/ 
Itek Systems Management Ltd 1 Newark Road South Eastfield, Glenrothes, KY7 4NS  01592 321207  
ITF Tech Ltd LP4 CEME Marsh Way Rainham, RM13 8EU  01708 209 924  
ITG Ltd Unit 9 J2 Business Park Bridge Hall Lane Bury, BL9 7NY  0161 402 3277  
ITHouse Solutions Ltd 39 Brookmill Road, London, SE8 4HU  02071839393 http://www.ithouse.co.uk/ 
IT-Initiative Ltd 5 Dicker Mill Hertford, Hertfordshire, SG13 7AE  0844 933 0735  
ITJ Contracting LTD 16 Weymouth court, London, SW22SH  02086710765  
IT-Moneywise Ltd 64 Upper Mulgrave Road, Cheam, SM2 7AJ  020 8408 7135  
ITPlusIT Ltd 6 Bayley Street, London, WC1B 3HE  0207 637 9843  
ITS Digital Ltd 50 Bengeo Street Bengeo, Hertford, SG14 3ET  01992 515850  
Its Technology Group Ltd Elm House Farm, Chester, CH3 6EN  01928 291000 http://www.itstechnologygroup.com/ 
ITS Telecoms Ltd Communications House 26 York Street, London, W1U 6PZ  0844 887 0877  
ITSOS Broadband Unit 8 Brannam Crescent Roundswell Business Park Barnstaple N.Devon EX31 3TD  01271 852970  
ITSOS Broadband Lower Twitchen Farm, Huntshaw, EX38 7HQ  01271446466  
ITsynergy Ltd PO Box 50283, London, EC2P 2WS  0800 583 9103  
ITTEAMltd 103 Anchor Road Longton, Stoke on Trent, ST31JY  01782450121  
ITVET Ltd 4 London Road Bishops Stortford, Herts, CM23 5ND  0870 423 2757 http://www.itvet.co.uk/ 
ITWiser Comms Ltd New Chartford House Centurion Way, Cleckheaton, BD19 3QB  01274 868 924  
ITWister LLP New Chartford House Centurion Way Cleckheaton West Yorkshire, BD19 3QB  01274 868924  
IT-Works 2012 Ltd 19 College Walk Kidderminster, Worcestershire, DY10 1PL  0121 270 0808  
ITWorks Computer Systems Ltd Rivington House Rockfield Road Oxted Surrey, RH8 0EL  01883 722 227  
itxpressuk 3-5 Alma Road Carlton House Headingley Leeds, LS6 2AH  01133504271  
IV Response Ltd 57-61 Mortimer Street, London W1W 8HS  0800 883 0800 http://www.ivresponse.com/ 
Iview Comms Ltd 413 Leabridge Road, London, E10 7EA  02033226611  
IVOCA Ltd Suite 106, City House 131 Friargate, Preston, PR1 2EF  01772311959  
Ivocom Ltd 51 Pure Offices Kembrey Park, Swindon, SN2 8BW  01793208050  
Ivy Ltd The Bakehouse Bradwell Abbey, Milton Keynes, MK13 9AP  01908 552 900  
J & E Computers Ltd 3 Owler Ings Road Brighouse, Yorkshire, HD6 1EJ  01484 402030  
J & J Systems Uk Ltd Systems House 14 Downs Park Herne Bay Kent, CT6 6BY  01227371375  
J and V Data Services Ltd 358 London Road Hadleigh, Essex, SS7 2DD  01702 410 043  
J.G Fenn Ltd Second Floor West Court Riverside Park Campbell Road Stoke-on-Trent, ST4 4FB  01782 344 000  
j2 Global Ireland Ltd Unit 3, Woodford Business Park, Santry, Dublin 17, Ireland  0800 066 9939 http://www.yac.com/ 
JabbaTalk Ltd Unit 2, Riverside Park, Caton Road, Lancaster LA1 3PE  01524 39212 http://www.jabbatalk.co.uk/ 
jabez200 Unit 2A The Ferriers Ind Estate, Annscroft, SY58AN  01743860478  
JAD Logic Bush House Seveock Greenbottom Truro, TR4 8QH  01872 561 234  
Jade Solutions Ltd Laurel House Woodlands Park Ashton Road Newton-le-Willows, WA12 0HF  01925 295 400  
Jaeger& Co 12 Ryder Crescent, Southport, PR8 3AE  03333444534  
Jaguar Telecom Ltd 4 Imperial Place Maxwell Road Borehamwood Herts, WD6 1JN  020 3002 9650 http://www.jaguartelecom.co.uk/ 
James Janicki 67 Church Rd, Tilbury, RM18 7AJ  08452573810  
James Steyn 3 Well View Stoke Row, Henley-On-Thames, RG9 5QQ  07447493456  
James Thomason & Co 17 Hampshire Court Stanton Road, London, SW13 0ES  07956 220 882  
JamesCash.co.uk Ltd Suite 2 Winwood Court Norton Road Stourbridge West Midlands, DY8 2AE  01384 880 660  
Jameson Lomax 6 Wilford Lane West Bridgford, Nottingham, NG2 7QX  0115 982 5255  
Jamtech Communications   http://www.jamtechcomms.co.uk/ 
Jandu Technologies Ltd SB210, Telford Innovation Campus, Telford, TF2 9NT  01952257554  
Janua Hortorum Ltd 10 Park Gate, Bradford, BD15BS  01274 701150  
Jasmine IT 28 Forge Close South Muskham, Newark, NG236EG  01636-679301  
Jason Clark 253 Kings Road, Ashton under Lyne, OL6 9EG  07446059659  
Jason Moore 40 beaford road, manchester, m22 0ag  07715665930  
Jaytag Computer Ltd Maddison House 226 High Street, Croydon, CR9 1DF  02087614452  
JBC Computer Systems (Coventry) Ltd Bayley House, Coventry, CV1 5RJ  02476 433402  
JC Telecom Consultants Ltd 144a Springvale Road, Winchester, SO23 7RB  03300431953  
JC&C Bowers Telecoms Ltd Arena Business Centre Lime Tree Gate, Basingstoke, RG24 8WH  0330 159 8102  
JCmicro Ltd 30 musters road, nottingham, ng2 7pl  01159825599  
Jcom UK Ltd 63-67 High Street, Teddington Middlesex, TW11 8HA  020 8943 2222  
JCS-COM-SOL Ltd 19 Hillneuk Ave Bearsden, Glasgow, G61 3PZ  0141 942 8437  
JCWORKS Ltd 36 Market Place, Selkirk, TD7 4BL  01750725007  
Jelly Communications Ltd 44 Barwell Business Park leatherhead Road Chessington Surrey, KT9 2NY  0808 161 0000  
Jeremy Sutton Consultancy Ltd 112 Oakdene Crescent Weddington, Nuneaton, CV10 0DT  07973 861817  
Jersey Airtel Le Masurier House, La Rue Le Masurier, St Helier, Jersey JE2 4YE  07829 700121 https://www.airtel-vodafone.com/ 
Jet Telecom Ltd Richmond Court 216 Capstone Road Bournemouth Dorset, BH8 8RX  0845 070 0808  
JG Communication Services Ltd 1 Abbeyfields Close, Southampton, SO31 5GR  02380 454 455  
Jga Enterprises Ltd 5 phoenix lane fernwood newark, ng24 3ua  07920022440  
JHCS Ltd 27-29 Kirkgate, Newark, NG24 1AD  01636 682244  
JHL Communications Ltd 16 Fitzroy Place Sauchiehall Street, Glasgow, G3 7RW  0141 572 1624 http://www.jhlcomms.com/ 
Jido Ltd The Dock, Wilbury Villas, Hove, BN3 6AH  01273830333  
Jim McCarthy Unit 1G, South Hams Business Park Churchstow, Kingsbridge, TQ7 3QH  01548312888  
Jimico Ltd Barleycroft, Hemsby Great Yarmouth Norfolk, NR29 4NS  01603 673160  
JJB IT Services Ltd 40 Dee Lane, Wirral, CH480QA  07739583138  
Datakom Ltd Unit D12 David Street Bridgend Industrial Estate Bridgend CF31 3SA  01656 653352  
JL Reg Net 3 The Quadrant, Coventry, CV1 2DY  0844 391 3500  
JLB IT Solutions Ltd 103 Paxton Road, Fareham, PO141AD  01329 517380  
JLCIT Ltd Unit 1, 8 Blue Lion Place, London, SE1 4PU  08002922230  
JLCom Ltd Rolland House Newbridge Industrial Estate Clifton Hall Rd Edinburgh, EH28 8PW  0844 257 0400  
JMV Solutions Ltd Benedicts Bridge Liverton, Newton Abbot, TQ12 6HQ  +441626821160  
Jns Telecom Ltd 36 Court Parade East Lane, Wembley, HA0 3HS  02030266980  
John Graham Construction Ltd 5 Ballygowan Road, Hillsborough, County Down, BT26 6HX  02892681778  
John Lewis Broadband The Balance, 2 Pinfold Street, Sheffield S1 2GU  0800 022 3300 https://www.johnlewisbroadband.com/ 
John Pemberton 43 Sylvan Av, Birmingham, B31 2PG  01216433220  
Johnson Technical Systems Ltd Unit 201 - Waterhouse Business Centre 2 Cromar Way, Chelmsford, CM1 2QE  01277 888799  
Join-IT Ltd 26 Bridge Road East, Welwyn Garden City, AL7 1HL  02034688180  
JOKG Ltd Victoria House 2 Grove Road, Fareham, PO16 7TE  02380000088  
JOLA Cloud Solutions Ltd Cambridge House 16 High Street Saffron Walden Essex, CB10 1AX  0115 888 2585  
JPC InfoNet Ltd Suite 2 Bryer Ash Business Park Bradford Road Trowbridge Wiltshire, BA14 8AW  01225 77655  
JPS Technical Services LTD 28 Cathedral Road, Cardiff, CF11 9LJ  02921510260  
JPTF Services Ltd 6B Belgic Square, Peterborough, PE1 5XF  01733 563900  
JRW Developments 11 Westfield Drive, Worksop, S81 0JS  01909 484 511  
JSL Computers The Old Post Office Wycombe Road Studley Green,High Wycombe Buckinghamshire, HP14 3XA  01494 410777  
JT (Global) Ltd PO Box 53, No 1 The Forum, Grenville Street, St Helier, Jersey JE4 8PB  020 7920 2000 https://www.jtglobal.com/Global/ 
JT (Guernsey) Ltd 24 High Street, St Peter Port, Guernsey GY1 2JU  01481 882882 https://www.jtglobal.com/Global/ 
JT (Jersey) Ltd PO Box 53, No 1 The Forum, Grenville Street, St Helier, Jersey JE4 8PB  01534 882882 https://www.jtglobal.com/Global/ 
Jtec IT Solutions 5 Carndale Meadows, Ballymena, BT43 5NX  028 2563 1767  
Jtec UK Ltd 15 Hunts Mill Crispin Place, Wallingford, Oxon OX10 0DR  http://jtechltd.com/ 
J-Tech Systems Ltd 26 Breakfield, Coulsdon, CR5 2HS  0203 326 7329  
JTML.com Clomar House Jubys Hill Witnesham Ipswich, IP6 9EN  01473 286666  
Juddo Ltd 31 Rutley Close, London, SE17 3NP  020 3239 6688  
Juice Telecoms Ltd 33 King Street, Norwich, NR1 1PD  0844 357 1111  
Julian Barnett Brook Fields Close, Bromsgrove, B60 1EP  0845 475 0050  
Junction Computers LTD Unit 4C Woodley Park Estate Reading Road Woodley Reading, RG5 3AW  01189268585  
Jungle IT Ltd 2 Feast Field Horsforth, Leeds, LS18 4TJ  0113 258 4433  
Jungle Networks Ltd The Granary 4 Stebbing Farm Fishers Green Stevenage, Hertfordshire, SG1 2JB  07973 164 628  
Juno Corporation Ltd 10A Frankham House Frankham Street, London, SE8 4RL  09752 590520  
Just Call   http://www.justcall.co.uk/ 
JUST IT Computer Services Ltd 41 Buttercup Road Desborough, Northamptonshire, NN142JP  01536765687  
Just Natter Ltd 3 Hunters Chase Dinnington, Sheffield, S25 2TQ  0845 868 7894  
Just Networks UK Ltd 28 Yarm Road, Stockton on Tees, TS18 3NG  01642 888899  
Just Utilities Ltd Gibson House Gibson Road Hemswell Cliff Gainsborough, Lincolnshire, DN21 5TL  01427 800 310  
Just Voice & Data Ltd 105 Hall Street, Hamilton, ML3 6RY  01698 897 475  
Just2Connect Ltd 2 The Cottage Archive Mews Kingshill Way Berkhamsted, HP43TN  01442573030  
Just-Dial Instant PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY  033 3321 8705 http://www.just-dial.com/ 
Just-Dial Instant PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY  033 3321 8705 http://www.just-dial.com/ 
Jutel Ltd Suite G, Quadrant House 31-65 Croydon Road Caterham Surrey, CR3 6PB  03330069696  
JW and M Clarke Unit 15 Harlescott Barns Harlescott Lane Shrewsbury, SY1 3SZ  01743 442 376  
K Lowther & Co Ltd 18 Middle Hillgate, Stockport, SK1 3AY  0161 480 7385  
Kaizen Telecom Ltd 2-6 Townend Road, Sheffield, S35 9YY  0845 141 1401 http://www.kaizentelecom.co.uk/ 
Kalamath Consultancy Ltd Thistle House Inchinnan Road, Paisley, PA3 2RE  01415309460  
Kalnet4u Ltd 81 St Modwen Road, Parkway Ind Estate, Plymouth PL6 8LH  01752 548143 http://www.tamartelecommunications.co.uk/ 
Kanj Technologies Ltd Unit 5 Waverley Industrial Estate Hailsham Drive Harrow, HA1 4TR  020 3056 7531  
Kanzen Solutions sheepfield close, little sutton, CH66 1HP  01513481166  
Kaptec Telecoms Services Ltd 49 London Road, Maidstone Kent, ME16 8JE  00 353 94 904 8900  
Karma Computing Ltd 20 Brady & Martin Court Northumberland Road, Newcastle upon Tyne, NE1 8SG  020 3095 1759  
Karoo Communications   http://www.karoo.co.uk/ 
KAT Communications Ltd 1, Watervole Way, Doncaster, DN4 5JP  01302260195 http://www.katcommunications.co.uk/ 
Kazzoo Ltd 18 Moat Street, Leicester, le18 2gd  0844 3729893  
KBS Communications    
KCOM Group PLC 37 Carr Lane, Hul, HU1 3RE  01482 602100 http://www.kcomplc.com/ 
KCS Total Solutions Ltd Unit 2 Heron Business Park Eastham Way Hemel Hempstead Hertfordshire, HP2 7DU  01442 251 514  
KDDI Europe Ltd Atlas House, 1 King Street, London, EC2V 8AU  020 7507 0001 http://www.kddi.com/english/ 
Keba Computer Services Ltd Unit 4 Baird Close, Daventry, NN11 8RY  01327300311  
Keeley Travis Business Solutions Ltd Canal Side Lodge George Street Failsworth Manchester, M35 9BW  0161 683 4247  
Keen IT Solutions Ltd Unit 8 St George Industrial Estate Wilton Road Camberley, Surrey, GU15 2QW  01276 818461  
Kelsey Networks Ltd 18 Bold Street, Warrington, WA1 1HP  01925 231 482  
kelway UK Ltd 10 Fleet Place, London, EC4M 7RB  020 7791 6000  
Kencomp Internet Ltd Kerian House 64 Stramongate Kendal Cumbria, LA9 4BD  01539 898 145  
Kensington Steele Ltd Hilton House Lord Street Stockport Cheshire, SK1 3NA  0161 241 1679  
Kent CCTV & Data Ltd UNIT 3F, REAR of 2-4 HIGH STREET, WEST MAILING, ME19 6QR  0800 6126714  
Kent IT Maintenance LTD Chart Hills Golf Club Weeks Lane Biddenden Kent, TN27 8JX  01580 761456  
Kent Laptops Ltd Unit 49 John Wilson Business Park Harvey Drive, Whitstable, CT5 3QY  01227200321  
Kent PCs Rosedene, Canterbury Road Challock, Ashford, TN25 4DW  01233 740306  
Kent Tec 351 Northdown Road, Margate, Kent CT9 3PB  01843 232777 http://www.kent-tec.co.uk/ 
Kent Technologies Ltd 351 Northdown Road Margate, Kent, CT9 3PB  01843 232 777  
Kenton Research Ltd Innovation House Unit 19 Bourne Ind Park Crayford Kent, DA1 4BZ  01322 552000  
Kenwood Electronics UK   http://www.kenwood-electronics.co.uk/ 
Keolia Ltd The Balance Floor 7 Pinfold Street, Sheffield, S1 2GU  0800 652 0589  
Kerbury Ltd 1 rookwood way, Haverhill, CB9 8PB  01440 702800  
Kerchan Ltd 92 The Crestway East Sussex, Brighton, BN1 7BN  01273 311300  
KES Unit 7 Kilnbridge Works Lower Road, East Farligh, ME15 0HD  01622 524160  
Kesher Communications Ltd 21 Rochester Avenue, Prestwich, Manchester M25 0LF  0161 820 8353 http://www.keshercommunications.com/ 
Kestrel IT Ltd Unit 3 Severnside Brue Avenue Colley Lane Ind Est Bridgwater, TA6 5LT  01278411980  
Keswick Computer Services Ltd 5 Packhorse Court Keswick, Cumbria, CA12 5JB  017687 75526  
Kevin James Ltd 16 Seax Court Southfields Industrial Estate Basildon Essex, SS15 6BB  01268 546 594  
Kew Solutions IT Ltd 25 Great Bowden Road, Market Harborough, LE16 7DE  07811349593  
Key Computer Applications Ltd Cavan House Ellesmere Street Leigh Greater Manchester, WN7 4LQ  01942 261 671  
Key Skills Staple Barton, Torrington, EX38 8JD  01805 628060  
Key Solutions Ltd 5 Clifton Square Lytham Lytham St Annes Lancashire, FY8 5JP  01253 731 888  
Key Telecoms Ltd The Old County Police Station, Newhey Road, Milnrow, Lancas OL16 3PS  0161 353 2000 http://www.keytelecoms.co.uk/ 
KEY2 Computer Services Ltd 2 The Courtyard Penkridge Staffs Staffordshire, ST19 5DE  01785 719097  
Keyfort Ltd 6 Stratfield Saye 20 - 22 Wellington Road, Bournemouth, BH88JN  08448014580  
Keysystems EC2 Ltd 7 Cuckoo Hill Road Pinner, Middlesex, HA5 1AS  020 8866 5698  
Keytel Direct Ltd The Levels Redbrook Lane Rugeley Staffordshire, WS15 1RD  0844 669 3666  
Khalil Telecom Pvt    
Kia Fire Safety Ltd 236 Wharf Road Ealand, North Linconshire, DN17 4JN  01724 711 280  
Kijoma Broadband   http://www.kijoma.net/tiki-view_articles.php/ 
Kimcell Ltd Gild House Norwich Avenue West, Bournemouth, BH2 6AW  01202755375  
Kinetic Internet Ltd Kinetic Internet Limited Lodge Park, Lodge Lane Langham Colchester, CO4 5NE  01702 808957 http://www.kinetic-internet.co.uk/ 
King Comms 145-157 St John Street, London, EC1V 4PW  02892 646 097  
Kingsley Networks 12 fairview drive, Watford, WD17 4ST  +441923639021  
Kingstar Services Ltd 23 Richmond Road, Southampton, SO15 3FT  02381 157731  
Kingston Telecom Solutions Ltd 5 Kew Road, Richmond, TW9 2PR  02035516600  
Kinspeed Ltd Albion House Ravenshorn Way Renishaw Sheffield, S21 3WY  01246 437 000  
KIPCOM Ltd Maritime House Kingston Street, Hull, HU1 2DB  01482 238 328  
Kiss Telecom Ltd (dissolved February 2011)   
Kite Telecom Ltd 226 Foundry Lane Shirley, Southampton, SO15 3JX  07940349868  
Kiwi IT Solutions Ltd Unit 8 Darwin House Innovation Centre Pensnett Estate, West Midlands Kingswinford, DY67YB  08432249301  
Kiwi Voice And Data Ltd Surrey House, 196 Barnett Wood Lane, Ashtead, Surrey, KT21-2LW  03330-110490  
Kliker It Services Ltd New House South Grove, Petworth, GU280ED  08455442033  
KM IT Solutions Ltd 31-35 Kirby Street, London, EC1N 8TE  02032827111  
KMI Technologies Ltd 2 Giants Seat Grove Swinton Manchester Lancashire, M27 8AG  0161 736 6205  
KMW IT Services Mayview Street End Lane Broadoak Heathfield, TN218TS  01435862622  
knect IT Ltd 13 Sampson Close Collingwood Manor, Morpeth, NE612FN  441670511222  
Knight ICT 15 Medwin Street, Clapham North, London, SW4 7RT  07947565585  
Knight IT Group Ltd 354 Mare Street, London, E8 1HR  07789549453  
Knowall IT Ltd 18 Spring Street, London, W2 3RA  0844 264 1109  
Knowledge Generation Bureau (jgb) 655 Madison Avenue, New York, NY 10065, USA  http://www.kgb.com/ 
Known Communications Ltd (dissolved May 2011)   
KOG Systems Ltd 17 Black Bourton Road, Caterton, OX18 3HQ  01993 841406  
Kohima Consultants Ltd Leigh House, 28-32 St Pauls Street, Leeds LS1 2JT  0845 450 6161 http://www.kohimacl.com/ 
Koicoms Ltd 160 Hope Street, Glasgow, G2 2TJ  0141 433 1265  
Komputer Consultancy Services Ltd 8 Chess Business Park, Chesham, HP5 1SD  01494773722  
Konnectiv Technology Ltd 3 Blackburn Road, Sheffield, S61 2DW  01142997986  
Koris Ltd 1 Poultry, London, EC2M 8JR  0845 094 8484  
Krome Technologies 246 Station Road Addlestone, Surrey, KT15 2PS  01932 232 345  
KromeTech Krome House 246 Station Road, Addlestone, KT15 2PS  01932 232345  
KS Services Ltd Prince William House 3 Clifton Villas, Bradford, BD87BY  01274 772244  
KSD Communications LLP Patcham Place London Road, Brighton, BN1 8YD  01273 559 293  
KSL Connect   http://www.kslconnect.co.uk/ 
KSM Telecom 1A St Hermans Road Hayling Island, Hampshire, PO11 9NA  02392 290 500  
Kube Get Virtualised   http://www.kubenetworks.com/ 
Kube Network Services Ltd Building 4000 Academy Park Gower Street Glasgow, G51 1PR  0844 873 4488  
Kube Networks Ltd Building 4000 Academy park Gower Street Glasgow, G51 1PR  0844 873 4488 http://www.kubenetworks.com/ 
Kubenet   http://www.kubenetworks.com/ 
Kyle Williamson Associates Ltd Caol House 145-157 St John Street, London, EC1V 4PW  023 8000 0990  
Kyonet-IT Ltd 6 Stafford Park, Telford, TF3 3AT  0333 101 0000  
L A Comms Ltd Ribble Court 1 Meadway, Padiham, BB12 7NG  0844 776 7564 http://www.lacomms.com/ 
L.E.A.D Services Ltd Wyvern Court Wyvern Business Park Stanier Way Derby, DE21 6BF  01332861956  
L.UK/Euro (Brighton) Ltd Broseley House 81 Union Street, Oldham, OL1 1PF  0161 622 1845  
L2MC Ltd Beech House 35 Beech Avenue, Radlett, WD7 7DD  0800833599  
LA Connect Ltd 39/40 The Arches Alma Road, Berkshire, SL4 1QZ  01753 625 111  
LA ICT Services Ltd C/O Baldwin Gravestock & Owen Limited St David's Court Union Street Wolverhamption, WV1 3JE  01922211600  
Labyrinth Computers Ltd Unit 3 Lufton Heights Commerce Park Boundary Way Yeovil, BA22 8UY  01935 421299  
Labyrinth Technology Ltd 184 Lower Road Surrey Quays, London, SE16 2UN  02030029603  
Ladarnas Ltd 8 Rutland Square, Edinburgh, EH1 2AS  01312300160  
Ladybird Communications Unit 3, 2 Laureate Paddocks., Newmarket, CB8 0AP  01638 640000  
Ladybird Voice Solutions Ltd The Latton Bush Centre, Southern Way 2 Laureate Paddocks, Harlow, CM18 7BL  01279 268268  
Lake Technologies Ltd Inspiration House 21 De Havilland Drive Estuary Business Park Liverpool, L24 8RN  0151 432 5600  
Lakeside Business Services Ltd Keepmoat Stadium Stadium Way, Doncaster, DN4 5JW  01302 590001  
Lambit Ltd Hill View Pound Lane Donyatt Ilminster, TA19 0RR  07917620397  
LAN Support Ltd Stonebridge House Catteshall Road Godalming Surrey, GU7 1NJ  01483 413 360  
Lancaster University Network Services Ltd Lancaster University Network Services Ltd (LUNS Ltd) Infolab21 Bailrigg Lancaster, Lancashire, LA1 4WA  08450 505550  
Lancehawk Ltd 11a Regent Street East Briton Ferry, Neath, SA11 2RR  01639-814800  
Unitel Utilities Ltd The Catalyst York Science Park Baird Lane York YO10 5GA  0333 577 0600  
Landmark Technologies (UK) Ltd 4 Lombard St, London, EC3V 9HD  02079777707  
Lanix UK Ltd 6 The Metro Centre St Johns Road Isleworth Middlesex, TW7 6NJ  020 8232 8008  
Lanmark Technical Services Ltd Warnford Court 29 Throgmorton Street, London, EC2N 2AT  020 7947 9656  
Lanonyx Telecom Ltd Office 3, 111 Piccadilly, Manchester M1 2HX  0844 740 7450 http://www.lanonyx-telecom.com/ 
Lansafe Ltd East Quarry Appley Lane North Appley Bridge Wigan, WN6 9AE  01257 758222  
Lansdowne Telecom Ltd 3 Bowood Close, Derry Hill, Calne, Wilts SN11 9QZ  0845 241 1166 http://www.lansdownetelecom.co.uk/ 
LAN-Serve IT Solutions Ltd The Innovation Centre Norden House Basing View Basingstoke, Hants, RG21 4HG  0845 453 0101  
LANtec Services Ltd 381 Carlton Hill, Nottingham, NG4 1HW  0844 844 0660  
Lantec Systems 4 The Studios 322 Chorley Old Road Bolton Lancashire, BL1 4JU  01204 467 440  
Lanway Coporate Business Systems Ltd Bridgewater Close Network 65 Business Park, Hapton, BB11 5TE  01282 418 888  
Lanworks IT Services Ltd 13 Robjohns Road, Chelmsford, CM13AG  01245 251500  
Lanz Ltd 37 East Road, London, N1 6AZ  020 7251 2000  
Larch Computer Services Ltd Unit 3 Compton Place Business Centre Surrey Avenue, Camberley, GU15 3DX  08452609040  
Larrytech Ltd Calverley House 55 Calverley Road, Tunbridge Wells, TN1 2TU  01892 888 011  
LARS Communications   http://www.lars.co.uk/ 
Lascom Communications Second Floor, One Crown Square Church Street East Woking Surrey, GU21 6HR  0870 890 1156 http://www.lascom.co.uk/ 
Lascom Solutions Ltd North Wing Barmere House Bickley Whitchurch, SY13 4HH  08444127009  
Lastnet Ltd Enterprise Zone 210 Portobello, Sheffield, S1 4AE  0114 3210300  
Launceston College Hurdon Road Launceston, Cornwall, PL15 9JR  01566 772 468  
Laurel Consultancy Services Ltd 20 Main Road Washingborough Lincoln Lincolnshire, LN4 1AT  01522 718 396  
Lavaco LTD Unit 5 Baluniefield Ind Est, Dundee, dd4 8UT  +447880746540  
Lawdeck Ltd 86-90 Paul Street, London, EC2A 4NE  07961448432  
Laws Hosting Flat 12 Clover Court 280 Scotland Green Road North Enfield Middlesex, EN3 4SE  0333 112 6288  
Lawson Park LLP The Oakley Kidderminster Road, Droitwich, WR9 9AY  08432898230  
Lawyers On Line Ltd Hereford House 3 Offa Street Hereford Herefordshire, HR1 2LL  0845 388 6891  
Layer 47 Ltd Cedar Court Grove Business Park Waltham Road Maidenhead, Berkshire, SL6 3LW  0870 626 4747  
Layer3 Data Services Ltd Vicar Lane, Sheffield, S1 2EX  01142238332  
LBTS Ltd 117 Preston Grove, Yeovil, BA20 2DB  01935410377  
LCC Communications Ltd Pragnell House, Sopwith Close, Preston Farm Industrial Estate, Stockton-on-Tees TS18 3TT  0800 6522256 http://www.lcccommunications.com/ 
LDD Group Ltd Units C2/C3 Wira Business Park West Park Ring Road, Leeds, LS16 6EB  0113 224 2222  
Lde SmartAlarms Ltd The Stables Braydon Manor Braydon Swindon, SN5 0AG  01666 800800  
LDG Communications LTD 63 Botyl Road,,, Buckingham, MK18 2LR  08443579880  
Le Noir Coms Ltd 2 Elizabeth Road, Marlow, SL73JQ  01628308700  
Leading Edge Technology Ltd 5 The Atrium 31 Church Road Ashford Middlesex, TW15 2UD  08456 447 949  
LeadTec Ltd Eventus Sunderland Road Market Deeping Peterborough, PE6 0HL  01733600700  
Leaf Consultancy Ltd 17a Weavers Court Linfield Road, Belfast, BT12 5GH  028 9089 7650  
Leanwood Communications Ltd Bath Road, Slough Berkshire, SL1 4DX  01753 360151  
LEARNING DIGITAL CIC 113 The Green, Welling, DA16 2PB  07779 481654  
Lebara Mobile   http://www.lebara-mobile.co.uk/ 
Legend Telecom Ltd 167-169 Sunbridge Road, Bradford, BD1 2HB  01274288222  
LegendTel LLC 45 John Street,Suite 711, New York, NY10038, USA   
Leisure Link Group Ltd 3 The Maltings Wetmore Road Burton-on-Trent Staffordshire, DE14 1SE  01283 512777  
Leisure Park Internet Solutions LTD 5 Greengate Cardale Park, Harrogate, HG3 1GY  01423 295001  
Lemon Computing Ltd Unit 9 26-28 Priests Bridge, London, SW14 8TA  020 8878 2138  
Leon World UK Ltd 39 Barling Road,, Barling, SS30QD  07538824617  
Lets Just Do IT Ltd - 4 Upper Mulgrave Road Cheam, Surrey, SM2 7AZ  08445 430900  
Level 3 Communications Ltd 7th Floor, 10 Fleet Place, London EC4M 7RB  0845 000 1000 http://www.level3.com/en/ 
Level 3 Communications UK Limited 7th Floor, 10 Fleet Place, London EC4M 7RB  0845 000 1000 http://www.level3.com/en/ 
Leversedge Telecom Services   http://www.leversedge.co.uk/ 
Leverstock Ltd 17 Avebury Court Mark Road Hemel Hempstead Hertfordshire, HP27TA  01442800800  
Levi Telecommunications Ltd 203 Timberlog Lane Near Vange, Basildon, SS14 1PB  0845 504 8778  
Lexgreen Services Ltd 28 Marshcroft Lane, Tring, Herts H23 5PP  0800 066 4700 http://www.pre-dial.com/ 
LGPtelco Ltd Evans House 107 Marsh Road Pinner Middlesex, HA5 5PA  08445 457045  
Liberation Telecom Ltd 237 Glenhills Blvd, Leicester, LE2 8UJ  07908557295  
Liberty Global PLC 38 Hans Crescent, London SW1X 0LZ  020 7190 6300 http://www.libertyglobal.com/ 
Liberty i-zone   http://www.liberty-izone.com/ 
Liberty Solutions (Swansea) Ltd 11 Pyle Road, Swansea, SA3 3HH  03303 337300  
Liberty-izone Ltd Rivendell House 10 Church Road Guildford Surrey, GU1 4NG  0870 243 0465  
Lifeline Communication Services Ltd The Innovation Centre,, Festival Drive, Ebbw Vale, NP238XA  08458692183  
LifestyleIT Ltd 106 High Street Harrow on the Hill, Middlesex, HA1 3LP  020 8423 2244  
Lily Communications Ltd Unit 3 Headway Business Centre Knowles Lane Bradford, BD4 9SN  0843 507 1111 http://www.lilycomms.net/ 
Lily Systems Ltd Bedders Lodge Leicester Lane Great Bowden Leicestershire, LE16 7HA  01858 450441  
Lima Solutions   http://www.limasolutions.co.uk/ 
Limbtec Ltd 77 Erlstoke Close Eggbuckland, Plymouth, PL6 5QN  01752 546 967  
Limitless Mobile Ltd St Andrew's House, St Andrews Street, Leeds LS3 1LF  http://limitlessmobile.com/ 
Limpio Office Solutions Ltd 5 East Park, Crawley, RH10 6AN  08452412007  
Linctel Ltd   http://www.linctel.com/ 
Line UK Internet Ltd Unit 33 10 Barley Mow Passage Chiswick London, W4 4PH  03300 882 884  
Lineal Software Solutions Ltd Unit 7 Riverside Court Castle Street Barnstaple Devon, EX31 1DR  01271 375 999  
Linear Telecoms Ltd Unit 70 The Base, Dartford Business Park, Victoria Road, Dartford DA1 5FS  020 8114 9849 http://lineartelecoms.com/ 
lineUP Networks Ltd Unit 6 Eversden Court, Salford, M7 1AY  01618060806  
Linix Ltd Unit 88 Venture Point West, Liverpool, L24 9PB  0870 838 0700  
Link Broadband 3a Prestige House, North Shields, NE296QU  07984942899  
Link Connect Services Ltd Frensham House Farnham Business Park Weydon Lane, Farnham Surrey, GU9 8QT  01252 740 800  
Link-Connect Services   http://www.link-connect.com/ 
LinkedUp Communications Ltd Hill Quays, 14 Commercial St, Manchester Manchester, M15 4PZ  01613272969  
Linknet Communications Ltd 16 Torgate Lane Bassingham Lincoln Lincoln, LN5 9HF  08453881712  
Links Business Solutions Ltd 11 Boston Road, Glenrothes, KY6 2RE  01592 770751  
Link-Tel Communications   http://twowayradio.co.uk/ 
LinkUP Mitaka - T/A The Big Word    
LinkUp Technology Ltd Unit 9 Whitwick Business Centre Stenson Road Coalville Leicester, LE67 4JP  01158240042  
Linnet Solutions Ltd 56 The Street Bridgham, Norwich, NR16 2RS  01953 717 605  
Linten Technologies Ltd 792 Wilmslow Road, Manchester, M20 6UG  0800 612 7125  
Linx Telecom Ltd Unit 14 Darlaston Central Trading Estate, Wednesbury, WS10 8XB  01216951067  
Lion House (UK) Ltd 1 The Granary Court Lodge Horton Road, Horton Kirby Dartford, DA4 9BN  01322 868606  
Liongate electronics ltd 27 Trevelyan Crescent,, Middlesex, HA30RN  02083571468  
LionHeart Communications Ltd Glan Yr Afon West Grove Lane Hndleton Pembrokeshire, SA71 5RP  0845 400 0008  
Lipo Experts Ltd 37 Kew Road, Richmond, TW9 2NQ  02083321019  
Liquid 11 Ltd Sea Lake Road, Lowestoft, Suffolk NR32 3LQ  020 7856 0433 http://www.liquid11.co.uk/ 
Liquid Telecommunications Ltd 1 Kingsway, London, WC2B 6XF  0845 241 4252  
Liquid Voice Ltd Matrix House Goodman Street, Leeds, LS10 1NZ  0113 200 2020  
Lister Comms Ltd Sandwell Industrial Estate Spon Lane South, Smethwick, B66 1QJ  0121 553 2411  
Lister Communications Ltd Brunel Way, Stonehouse, Gloucester, GL10 3SX  01453 829 200 http://www.lister-communications.co.uk/ 
Lithium Systems Ltd Unit 5 Block 7 Cooperage Way Business Village, Alloa, FK10 3LP  01259 727847  
Live WiFi Ltd Liverpool Science Park,ic1 131 Mount Pleasant, Liverpool, L3 5TF  08451306246  
LIVEWIRE 87-89 Chapel Street, Salford, Manchester, M3 5DF  0870 750 760  
Livewire Digital Ltd Units 1 & 2 The Axis Centre Cleeve Road, Leatherhead, KT22 7RD  01372 386100  
Livvys Consultants Ltd Matrix House Basing View Basingstoke Hampshire, RG21 4DZ  0333 240 4000  
Lizardstudio Ltd Weston Herne Road, Crowborough, TN6 2NX  01892 801509  
LJT Systems Ltd First Floor 3 All Hallows Road Bispham Blackpool, FY2 0AS  01253966060  
LKS Communications Ltd 7 School Walk Papworth Everard, Cambs, CB23 3XW  07790 498 850  
Lleida.net Serveis Telematics    
Llewellyn Technical Services Unit 52 Staughton Airfield Ind Est Little Staughton, Bedfordshire, MK44 2BN  01234 376 848  
Lloyd Bunday Consultants 14St Cecilias Close Kettering, Northants, NN15 5HX  01536 523842  
Lloyd Technology Ltd 20 Miller Street, Dumbarton, G82 2JA  0333 311 1002  
Lloyds Business Communications Ltd 109 Mere Grange Elton Head Road Leaside St Helens, WA9 5GG  0844 855 0400  
Lloyds Business Networks Ltd 109 Mere Grange Elton Head Road Leaside St Helens, WA9 5GG  0844 855 0400  
Lloyds TSB Bank plc Customer Care Ideal from Lloyds TSB PO Box 5875 Forres, IV36 2YB  0845 900 9000  
LLU Communications Ltd Unit H, Gateway 1000, Whittle Way, Stevenage, SG1 2FP  02030263206  
LMG Networks Office 3 Margaret House Huyton Road, Adlington, PR7 4HD  01257 786200  
LMS Computer Services Ltd Unit 2 The Sussex Business Village Lake Lane Barnham West Sussex, PO22 0AL  0330 088 2565  
LN Communications Ltd Hangar 1 Southside Aviation Centre Leeds Bradford International Airport West Yorkshire, LS19 7UG  0845 643 5811  
Local Expert Services Ltd Unit 10b CockRidden Industrial Estate Brentwood Road Brentwood, CM13 3LH  01708 203 040  
Local Planet Solutions Ltd The Building Design Centre 125 Muir St Hamilton Lanarkshire, ML3 6BJ  01698 426143  
Local Telecom Ltd 1 Royal Terrace, Southend-on-sea, SS1 1EA  01702460200  
Local Telecom Service Ltd 2 Chessingham Court George Cayley Drive, York, YO30 4WQ  01904 330 331  
Locall Communications Ltd 20 Weymouth Drive Biddick Woods, Houghton Le Spring, DH4 7TQ  08435572906  
LocallNet Ltd Piercefield Road Formby, Liverpool, L37 7DG  0845 688 2999  
Localphone Ltd 4 Paradise Street, Sheffield S1 2DF  033 3555 3555 https://www.localphone.com/ 
Lochnet 2 Woodgrove Drive, Inverness, IV2 5HP  01463630110  
Lock 42 Ltd 2-4 Frog Island, Leicester, LE3 5AG  0116 2230303  
Lodge Information Services Ltd 2a Gate Street Maldon, Essex, CM9 5QF  01621 878 600  
Logical Focus Ltd    
Logical Microsystems 538 Great Horton Road Bradford, West Yorkshire, BD7 3HG  01274 522131  
Logicalis (UK) Ltd 110 Buckingham Avenue, Slough Berks, SJ1 4PF  01753 777 200  
Logics Technologies Ltd 41 East Street Bromley BR11QQ Greater London, Bromley, BR1 1QQ  02030111987  
LogicStar Ltd    
LogicTel Ltd 209 Grindley Lane Blythe Bridge, Stoke on Trent, ST11 9JS  07779 219078  
Logix Business Software Ltd Conavon Court 12 Blackfriars Street, Manchester, M3 5BQ  0161 669 4671  
Logixal Document Solutions Ltd 17a Micawber Street, London, N1 7TB  02070140100  
Loho Ltd 141 Kings Hedges Road, Cambridge, CB4 2PL  01223 750 165 http://www.loho.co.uk/ 
London Central Communications Ltd 42 Southwark Street,London SE1 1UN  020 3179 3179 http://www.lcc.co.uk/ 
London Data Cabling Ltd 10 Kennedy Close London Colney, St Albans, AL2 1GR  02077900491  
London Digital Ltd Vernon House, Sicillian Avenue, London WC1A 2QH  020 7704 6600 http://www.londondigital.com/ 
London Executive 65 York Street, London, W1H 1PQ  0870 334 4550  
London Facilities Ltd    
London Gateway Networks Ltd Junction Lodge Port of Tilbury Tilbury Essex, RM18 7EH  01375 363263  
London Telephones NS Ltd 37 Stanmore Hill, Stanmore, HA7 3DS  02071481120  
London Voice and Data Exchange    
London Web Ltd Security House Lismarrine Industrial Park Elstree Road Elstree, WD6 3EE  020 8349 4500  
Long Range Systems UK Ltd 1880 Link House Leek Road, Stoke on Trent, ST2 7AH  01782 53 7000  
Longfield Hospice Burleigh Lane Minchinhampton, Stroud, GL5 2PQ  01453886868  
Lonsdale Network Services Ltd Lowther, Penrith, CA10 2HH  01228 808002  
LoquorTek Ltd Digital World Centre 1 Lowry Plaza The Quays Salford, M50 3UB  08009012902  
Loud Mouth Phones Ltd Unit 3, Shires House Hussey Road Battlefield Shrewsbury, SY1 3TE  01743291731  
Louis Lobban 6 Garfield Close Eldene, Swindon, SN3 6BZ  07725759030  
LSA Systems Ltd 20 Radford Crescent Billericay, Essex, CM12 0DU  0845 230 2940  
LTT UK Ltd Suite 315, 2 Old Brompton Road, London SW7 3DQ   
Lucid Computer Solutions Ltd Office 1&2 Midland Glass Works Charles Street Redditch Worcs, B97 5AA  01527908646  
Lucid IT Solutions Ltd Suite 4 The Willows Ransom Wood Southwell Road West Mansfield, NG21 0HU  0333 3208041  
Lucid Networks (Contracts) Ltd Greenheys Building Manchester Science Park Pencroft Way Manchester, M15 6JJ  0800 862 0059  
Lucid Systems Ltd Felaw Maltings 44 Felaw Street, Ipswich, IP2 8SJ  0845 452 0000  
Lugo Ltd 422 Baltic Chambers 50 Wellington Street, Glasgow, G2 GHJ  0141 285 0900  
Luke Derbyshire 28 The Chase, Boroughbridge, YO51 9JT  07500787864  
Lumic Ltd 24 Peters Road Chadwell St Mary, Essex, RM16 4LA  020 3301 3800  
Lumina Technologies Ltd 1 Marchmont Gate Maxted Road, Hemel Hempstead, HP2 7BE  01442 500 890  
Luminite IT Services Ltd Lymedale Business Centre Hooters Hall Road Newcastle-under-Lyme Staffordshire, ST5 9QF  01782 454 128  
Lux Communications Ltd 145 OAKWOOD AVENUE, WAKEFIELD, WF2 9JU  01482429366  
Lyca Home Ltd Lyca Home Limited 3rd Floor, Walbrook Building 195 Marsh Wall London, E14 9SG  020 7536 6450 ext 6354  
Lycamobile UK Ltd Walbrook Building, 195 Marsh Wall, London E14 9SG  020 7132 0132 http://www.lycamobile.com/ 
LycaTalk   http://www.lycatalk.com/ 
Lycatel Ltd Walbrook Building, 195 Marsh Wall, London E14 9SG  020 7101 2228 http://www.lycatel.co.uk/ 
Lycatel (Ireland) Ltd Dominick Court, 41 Lower Dominick Street, Dublin  D01 YX44, Ireland  +353 1 876 936556 http://www.lycatel.co.uk/ 
Lyonsdown 10 A Millway, London, NW7 3RE  020 8906 9011  
M & A Mckeag 11 Windmill Business Park, Saintfield, BT24 7DX  02897510991  
M 12 Solutions Ltd 6 Manor Court Barnes Wallis Road Fareham Hants, PO15 5TH  0845 408 1212  
M&M Information Technologies Ltd March Road/King Street Longton Stoke on Trent Staffordshire, ST3 1HD  01782 342 228  
M12 Solutions   http://www.m12solutions.co.uk/ 
M2 Technical Services Ltd 18 Glebe St, Glasgow, G4 0ET  01415523877  
M247 Ltd Ball Green, Cobra Court, Manchester M32 0QT  0161 615 1270 http://www.m247.com/ 
M3 Networks Ltd Inveralmond Business Centre Auld Bond Road, Perth, PH1 3FX  01738237001  
M3st Ltd 105 Great North Road, St Neots, PE19 8EL  01480471086 http://www.m3st.co.uk/ 
M7 Managed Services Ltd Unit 2 Cefn Coed Business Park Nantgarw Cardiff, CF15 7QQ  01443 657 100  
M9 Holdings (IT) Ltd Epworth House 25 City Road, London, EC1Y 1AA  020 3667 8266  
Mac Consultants Ltd SE11 5JH  020 7091 9999  
Mac Event Telecoms   http://www.macsystems.co.uk/ 
Mac Systems Ltd Newlands House 3 Carmunnock Road, Glasgow G44 4TZ  08718 711 992 http://www.macsystems.co.uk/ 
MacD IT Ltd 62 East Main Street, Armadale, EH48 2NS  01501 731 919  
Macfarlane Telesystems Ltd 22-26 Albert Embankment, London, SE1 7TJ  020 7314 1300 http://www.macfar.co.uk/ 
MacGregor IT Solutions Ltd 103 East Stirling Street, Alva, Clackmannanshire, FK12 5HB  01259 928631  
Macintosh Electronics Ltd 5 Brook Drive Whitefield, Manchester, M45 8FR  0161 796 5272  
Maclean Data Comms Ltd Suite D, Lancaster House Enderby Road, Leicester, LE8 6EP  0116 277 4020  
MacLellan IT Ltd Kathellan House Home Farm, Kelty, KY4 0JR  0845 833 1677  
Macnamara ICT Ltd 2.1 Hoxton Works 128 Hoxton Street, London, N1 6SH  020 3102 2140  
MacNeil Training & Developments Ltd 3 Carmunnock Road, Glasgow, G44 4TZ  01415838800  
MADJUBA Ltd 47 Royal Earlswood Park, Redhill, RH1 6TJ  020 7101 6368  
Magenta Solutions Ltd Unit 14B The Briars Waterberry Drive Waterlooville Hants, PO7 7YH  0845 894 9685  
Magna Communications Ltd Unit 3 Sunningdale Trading Estate Dixon Close, Lincoln, LN6 7UB  01522287777  
Magnetic North Software    
Magnus Telecom Ltd 53 GILLSCROFT ROAD, BIRMINGHAM, B33 9PS  01213267116  
Magrathea Telecommunications Ltd 5 Commerce Park, Brunel Road, Theale, Berkshire RG7 4AB  0345 004 0040 http://www.magrathea-telecom.co.uk/ 
Maincoms Ltd 61 Longmynd Drive Fareham, Hants, PO14 1SR  08447012050  
Mainframe Computer Services Ltd 17a Upper Aughton Road, Southport, PR8 5NA  01704562333  
Mainline Internet Services Ltd Staxford Villa Stacksford Attlboroug Norfolk, NR17 1PD  01953 860 225  
Mainlink Communications Ltd Unit 19, Hedge End Business Centre Botley Road Southampton Hampshire, SO30 2AU  0845 345 3995  
Mainstream Digital Ltd Cirencester Business Park, Love Lane, Cirencester, Glos GL7 1XD  01285 884310 http://www.mainstreamdigital.co.uk/ 
Main-Tel (Ne) Ltd Thorntree Farm Bassleton Lane Thornaby Stockton on Tees, TS17 0PN  01642 762202  
Maintel UK Ltd House Of Needham Alkington Rd, Whitchurch, SY13 1SR  01948660000  
Maintel Voice & Data Ltd 61 Webber Street, London, SE1 0RF  0870 401 5600  
Maker Technologies Ltd West View 11 Carrs Crescent Formby Merseyside, L37 2EU  01704 832 626  
Mala Communications Ltd Suite F Breakspear Park Breakspear Way Hemel Hempstead, HP2 4TZ  03300 240 444  
Mallott Installations 28 Milton Avenue Braintree, Essex, CM7 1AD  0870 444 1041  
Managed Business Communications Ltd Unit 2 Tennis Court Little Tennis Street Nottingham, NG2 4EW  0871 222 2290  
Managed Connections Ltd Worting House Church Lane, Basingstoke, RG23 8PX  03335777247  
Managed Networks Ltd 6-8 Bonhill Street, London, EC2A 4BX  020 7496 8000  
Managed247 Ltd Technology House 151 Silbury Boulevard, Milton Keynes, MK9 1LH  0845 519 5390  
Manchester Admin Ltd One Central Park Northampton Road, Manchester, M40 5WW  0845 643 6881  
Manchester Metronet Ltd    
Mandate Utilities Ltd 15a Marsh Mill Village Fleetwood Road North Thornton Cleveleys Lancashire, FY5 4JZ  01253 851 818  
Mango Com Ltd 1075 Finchley Road, London, NW11 0PU  020 3026 1120  
Mangrove Services 453 Cowbridge Road West, Cardiff, CF5 5TF  029 2132 3485  
Mann Telecom Ltd Bawnmore Park, Rugby, CV226JW  01788 461668  
Mansys UK Ltd Hope Park Business Centre Trevor Foster Way, Bradford, BD5 8HH  01274 395222  
Manta9 Ltd 63 Collingwood Court The Strand, Brighton, BN2 5WJ  01273 652300  
Mantech 191A Warwick Avenue Littleover, Derby, DE23 6HN  01332 737 752  
Mantracom Ltd Claylands House Alders Way Yalberton Industrial Estate Devon, TQ4 7QL  0844 264 1442  
Manx Telecom Trading Ltd Isle of Man Business Park, Cooil Road, Braddan, Isle of Man IM99 1HX  01624 624624 https://www.manxtelecom.com/ 
Maple Communications 73 Northease Drive, Hove, BN3 8PP  01273 417 170  
Marathon Telecom Ltd 28 Halkett Place, St Helier, Jersey JE2 4WG   
Marches Media Ltd Orchard Cottage Woodseaves, Eardisley, HR3 6LY  01544 327001  
Marcus Ltd 62 Bagleys Lane Farsley, Leeds, LS28 5LY  0113 236 2626  
Marina Telecom Ltd 23 Ocean View Jersey Marine, Neath, SA10 6HR  01792 651 000 http://www.marinatelecom.co.uk/ 
Mark Adams Norwood Meirion St, Aberdare, CF44 8NH  01685 700040  
Marke Solutions 6 Captains Hill Alcester, Warwickshire, B49 6QW  0121 270 6554  
Marketing Initiatives    
Marks and Spencer   http://www.marksandspencer.com/ 
Marley Communications Ltd Studio F, Caddsdown Business Support Centre, Clovelly Road, Bideford, EX39 3DX  01237423445  
Mars Communications Ltd Forest House, Forest Road, Ilford IG6 3HJ  020 7455 3000 http://www.marscomms.co.uk/ 
Marstons   http://www.marstons.co.uk/ 
Marstons Telecoms Ltd IT and Telecoms Dept Marston's House Brewery Road Wolverhampton, WV1 4JT  01902 711811  
Martin Dawes Solutions Martin Dawes House Europa Boulevard Westbrook Warrington, WA5 7WH  01925 713 888  
Martin Docherty 99 Onslow gardens, Wallington, SM6 9PX  02087731780  
Martley Web Mesh The Berrow Martley Worcester Worcestershire, WR6 6PQ  01886 821 237  
Martrel Ltd Fairfield Enterprise Centre Lincoln Way, Louth, LN11 0LS  01507222009 http://www.martrel.co.uk/ 
MAS Networks Ltd Sandstone Barn Handcross Road Plummers Plain Horsham, West Sussex, RH13 6NU  0800 0124 285  
Mason Infotech Ltd 29 Bridgford Rd West Bridgford, Nottingham, NG2 6AU  0333 2400484  
Matrix 4G Ltd 9th Floor, South Tower 26 Elmfield Road Bromley Kent, BR1 1WA  020 8290 9861  
Matrix IT Solutions Ltd 15 Fareham Enterprise Centre, Hackett Way, Fareham, PO14 1TH  01329 888444  
Matrix Logic Comnet Ltd Unit 4 Stephenson Court Stephenson Way Newark, NG24 2TQ  01636 642 450  
Matrix Network 6 Little Copse Chase, Chineham, Basingstoke RG24 8GL  http://www.matrixdial.co.uk/ 
Matrix Platinum Ltd   http://www.matrix247.com/ 
Matrix Telecoms Ltd 34-40 King Street, Norwich, NR1 1PD  01603217588  
Matthew Brain gethiniog cottage cross oak talybont on usk brecon, ld37uq  01874676362  
Matthew Cramer 23 St. Lawrence Way Bricket Wood, St. Albans, AL2 3XN  02030210820  
Matthews Computer Services 140 windsor Road Maidenhead, Berkshire, SL6 2DW  01628 626352  
Maven IT Services Ltd 154 The Rocks Road, East Malling, ME19 6AX  01622230053  
Maverick Connect Ltd Lavenham Business Centre Admiral House Parsons Street Oldham, OL9 7AH  01613001283  
MAX IT Ltd 36 East Street, Nottingham, NG10 2DH  01159465227  
Max Telecom   http://www.max-telecom.co.uk/ 
Max Telecom UK Ltd PO Box 608, Stalybridge, SK15 2WB  0161 304 7731  
Maxadie Ltd 16 Eskdale Gardens, Maidenhead SL6 2HE   
Maxim Solutions Ltd 36 Bruton Street Mayfair London, W1J 6QZ  020 7016 5180  
Maxima   http://www.maxima.co.uk/ 
Maxima Managed Services Ltd Service Management Centre 24 Chiswell Street, London, EC1Y 4TY  020 7579 8299  
Commtech110 Ltd 9 Tegan Close, Sutton SM2 GS  020 3514 6814 http://www.maximatel.com/ 
Maximum Maintenance Uk Ltd Holly House Shady Lane Great Barr Birmingham, B44 9ER  0121 3603775  
Maximum Networks   http://www.maximumgroup.net/ 
Maximum Networks (UK) Ltd    
Maximus Communications Enterprise House Unit 4 Orpington Trade Centre Murray Road Orpington, Kent, BR5 3SS  08704 445 560  
MaxIT Solutions Ltd The Old House 30 Hastings Road, Pembury, TN2 4PD  01892823779  
Maxnett Ltd Rockware Business Centre 5 Rockware Ave, Greenford, UB6 0AA  0845 868 0000  
Maya Solutions Ltd 135 Salusbury Road, London, NW6 6RJ  02031119878  
Mayflower plc Communications House 61-65 Chapel Street Billericay Essex, CM12 9LT  01277 630 444  
MazingTree Ltd 47 Thornhill Road, Plymouth, PL3 5NF  01752 540540  
MB System Networks Ltd   http://www.mbtelecom.co.uk/ 
MBCS.NET Ltd 231 Leach Green Lane Rednal, Birmingham, B45 8EB  0121 460 1231  
MBE Communications Midland House 58 Carlton Road, Nottingham, NG3 2AP  0115 9599 555  
MBT Communications Ltd 48a Northview Road, Luton, LU2 7LF  0844 880 2275  
MCG Systems Ltd The Stables Condover Mews Condover Shrewsbury, SY5 7BG  01743 875150  
MCL Services (NI) Ltd The Innovation Centre Northwest Regional Science Park, Derry, BT48 7TG  02871277814  
Mclwebco Ltd 28 Kineton Road, Wellesbourne, CV35 9LQ  01789471541  
Mcom Systems Ltd The Office Fence Avenue Macclesfield, Cheshire, SK10 1LT  01625 460 012  
MCS Global Ltd Ashwood, Grove Business Park, Maidenhead, SL6 3LW  01628828000  
MCS Systems 45 Preston Road, London, E11 1NL  020 8530 7803  
MCSa Group Ltd Maindec House Holtspur Lane, wooburn Green, HP100AB  01628810977  
MDI Networks Ltd 17-18 The Oakwood Center Downley Road Havant Hants, PO9 2NP  0845 226 8371  
MDNX Managed Services Ltd Sugarbond 2 Anderson Place, Edinburgh, EH6 5NP  0870 9061111  
MDR Interfaces Ltd Forest Hollow Nursery Lane Nutley East Sussex, TN22 3NP  01825 790294  
MDRTech 6 Lyndridge Court, okehampton, ex201jg  01392 580966  
MDS telecom ltd unit 1 sovereign business centre, wigan, wn1 3ab  01942310287  
Mear Technology Ltd The Alba Business Centre The Alba Campus, Livingston, Eh54 7EG  01506668613  
Medhurst (North West) Ltd Frodsham Business Centre Bridge Lane, Frodsham, WA6 7FZ  01928 290101  
Medhurst Communications Ltd    
Media & Communications Ltd Unit 10, Riverside Business Centre Brighton Road Shoreham-by-Sea West Sussex, BN43 6RE  0870 770 1890  
Media Centre Network Ltd Media Centre Network Ltd 7 Northumberland Street, Huddersfield, HD1 1RL  0870 990 5049  
Media Hawk Ltd Power House, Harrison Close, Knowlhill, Milton Keynes MK5 8PA  0800 046 4011 https://www.mediahawk.co.uk/ 
Media Logic Ltd Lydgate House 9 Lydgate Lane Sheffield South Yorkshire, S10 5FH  0114 266 2222  
Media Telecom Ltd 26 Calthorpe Road, Edgbaston, Birmingham B15 1RP  0844 258 8521 http://www.media-telecom.co.uk/ 
Mediatel (Sound Advertising Ltd) 4 Cumbrian House, Meridian Gate, 217 Marsh Wall, London E14 9FJ  020 7308 5555 http://www.mediatel.com/ 
Medway Council Gun Wharf Dock Road Chatham Kent, ME4 4TR  01634 336318  
Meerkat Comms Ltd No 1 Nottingham Science Park Jesse Boot Avenue University Boulevard Nottingham, NG7 2RU  0115 8800 088  
Meetingzone Ltd Oxford House Oxford Road Thame Oxon, OX9 2AH  02920 022 203  
Megacall Ltd The Mamor House 10 St. Margaret's Green Ipswich Suffolk, IP4 2BS  01473 281000  
Megganet 151 Tattysallagh Road Drumqiuin County Tyrone N. Ireland, BT78 4RQ  028 8283 1111  
Meibion Maesycastell Ltd Parc Morgan Crosshands Bus Park Llanelli Carmarthenshire, SA14 6RB  01269 842 242  
Meidan Ventures Ltd 20 William James House Cowley Road, Cambridge, CB4 0WX  020 3129 2062  
Melbek Technology Ltd Unit 7 Leiston Enteprise Service Leiston Suffolk, IP16 4US  0871 236 680  
Melbek Telecom Bay House 20-22 Market Place Saxmundham Suffolk, 1P17 1AG  0151 326 2240  
Melius Group Ltd Corburg Street, Gateshead, NE8 1NS  01912171384  
Mellow Marsh Software Ltd Wolverhampton Self Storage Ltd Unit A114, Vulcan Road, Bilston, WV14 7LF  01902 544135  
Melonite UK Ltd North Sands Business Centre Liberty Way, Sunderland, SR6 0QA  0191 640 2400 http://www.melonite.co.uk/ 
Melrose IT Solutions Ltd Melrose House Upper High Street Cefn Coed Merthyr Tydfil, CF48 2HW  01685 388880  
Melrose Next Ltd Cambridge House, 67-69 Woodham Lane New Haw Surrey, KT15 3ND  0870 111 8080  
Meppen Services Ltd Weetwood Grove Mansion Weetwood Lane, Leeds, LS16 5PJ  0113 2300297  
Meraki Communications Ltd 106 Kiln Road, Fareham, PO16 7UN  07825779257  
Mercia Business Systems 46 Belmont Road, Wolverhampton, WV4 5UD  01902 500 989  
Mercia Computing Ltd Laurus House, First Avenue Centrum 100, Burton on Trent, DE14 2WH  01283 260001  
Mercia Facilities Management Ltd 169 Torrington Avenue Tile Hill, Coventry, CV4 9AP  02476 645975  
Mercury Talk Ltd 713 Cranbrook Road Grants Hill, Essex, IG2 6RJ  020 8550 6677  
Mercury UK 3 Rosewood Westhoughton, Bolton, BL5 2RX  0844 412 8580  
Mercury3 Ltd 206 White Lane, Sheffield, S12 3GL  0870 4204858  
Mercuryavs Ltd 10 Chatsworth Avenue, Chesterfield, S40 3JU  01246 900900  
MergedComms Ltd 444 Royal Exchange, Manchester, M2 7EP  03301222220  
Meridian Computer Systems Ltd Unit 2 Keelan Close, Norwich, NR6 6QZ  01603340172  
Meridian IP Communications Ltd Unit 18 Freemantle Business Park, Southampton, SO15 1JR  0845 313 0987  
Merlin Business Software Ltd Chatsworth House 1 Millennium Way, Chesterfield, S41 8ND  01246 457 150  
Merlin Telecommunications Ltd 3 Cook Close Brompton on Swale, Richmond, DL10 7TY  0800 8778 810 http://www.merlin-telecom.co.uk/ 
Merula 25-31 Huntingdon Street St Neots, Cambridgeshire, PE1 1BG  01480 222940 http://www.merula.net/ 
Mesco Consulting Ltd 11 Woodhill Park, Portishead, BS20 7DR  07973 174 147  
Messenger Telecom Ltd Eden Point Three Acres Lane Cheadle Hulme Cheshire, SK8 6RL  03332228880  
Met Technologies Ltd 2 Bridge Avenue, Maidenhead, Berkshire,, SL6 1RR  0800 0588 233  
Metier IT 5 Palatine Suite, Coppull Enterprise Centre Mill lane, Coppull, PR7 5BW  0161 818 4886  
Metro Communications Ltd Kemp House 160 City Road, London, EC1V 2NX  02039061400  
Metrodata Ltd Fortune House Eversley Way Egham Surrey, TW20 8RY  01784 744 700  
Metronet (UK) Ltd Unit 1-4 Greenheyes Data Centre, Manchester Science Centre, Pencroft Way, Manchester M15 6JJ  0161 822 2560 http://www.metronet-uk.com// 
Mezenet Solutions Ltd 1 Redhill Lodge Road Newhall, Swadlincote, Derbyshire, DE11 0NZ  01283 249 800  
MF Communications UK Ltd Unit 30, Chapman Way, Tunbridge Wells, Kent TN2 3EF  01892 514687 https://www.mfcomm.co.uk/ 
MF Telecom Services Ltd Unit 30 Chapman Way Tunbridge Wells Tunbridge Wells, TN2 3EF  01892577577  
MFG Communications Ltd Unit 19 Theale Lakes Business Park Sulhamstead Berkshire, RG7 4GB  01189 148 800  
MFM-IT Ltd 15-17 Lawn Avenue, Stourbridge, DY8 3UR  01384 880000  
MFX Systems Ltd Crown House Home Gardens, Dartford, DA1 1DZ  0203 405 1750  
Mi Telecom Ltd 14 Hemmells, Basildon, Essex SS15 6ED  0800 810 8000 http://www.mi-telecom.co.uk/ 
Michael Milano 35 Orion Road, Rochester, ME1 2UL  01634778434  
Mick George Telecom Ltd 6 Lancaster Way,, Ermine Business Park, Huntingdon, PE29 6XU  01480464106  
Micom Systems Micom House 4A Bilton Lane Dunchurch Rugby, CV22 6PY  01788 220 022  
Micro Engineering Ltd 155 Kingston Rd., New Malden, KT3 3NS  02089492191  
Micro Minder Ltd Unit1, 8A Wadsworth Road Perivale, Greenford, UB6 7JD  08450941090  
Micro Plus Computers Ltd Unit 8 Trade Stop, Oswestry, SY10 8NU  01691 670960  
Micro-Business Maintenance Ltd 8a Windmill Bank Wombourne, Wolverhampton, WV5 9JD  01902324494  
Microbyte Business Solutions Ltd The Annexe, Victoria Mill Worrall Street, Congleton, CW12 1DT  01260 275381  
Microbyte Solutions Ltd 10 Commerce Road Lynchwood, Peterborough, PE2 6LR  01733 577 055  
Microcare Systems Ltd Microcare Systems Ltd Hamilton Systems Ltd Warth Road, Bury Lancs, BL9 9NB  0800 515513 http://www.microcare-systems.co.uk/ 
Microcomms Professional Services Ltd Pool Innovation Centre Trevenson Road Pool Redruth, TR15 3PL  01209 843 636  
Microcomputer Workshops Ltd The E-Business Centre Davy Way Llay Wrexham, LL12 0PG  01978 858300  
Microcoms Telephone Management Ltd Mayfair Business Centre Garvaghy Rd, Portadown, BT62 1HA  02894420600  
microform 5 Kingsdale Close Walton le Dale, Preston, PR54BT  07989115251  
Microlease PLC Unit 1 Waverley Industrial Estate, Harrow, HA1 4TR  02084200200  
MicroMart Europe Ltd Kingswick House Kingswick Drive, Sunninghill, SL5 7BH  01344875385  
Micromat International 8 High Street Tilbrooke, Cambridgeshire, PE28 0JP  01480 860584  
Micron Communications Unit 5&6, Bartlett Court Lynx Trading Estate Yeovil Somerset, BA20 2NZ  0870 787 2001  
Micronet Infotech Ltd 32 Metro Centre Dwight Road, Watford, WD18 9SB  01923 800614  
Micro-P Ltd Shorten Brook Way Altham Business Park Accrington Lancashire, BB5 5YJ  01282 776 776  
Microsmiths Ltd 9 Linford Forum Rockingham Drive Linford Wood Milton Keynes, MK14 6LY  01908 546500  
Microtalk Europe Ltd 4th Floor, West World, West Gate, Ealing, London W5 1DT  0800 814 4404 http://www.microtalk.co.uk/ 
Microtalk UK Ltd 4th Floor, West World, West Gate, Ealing, London W5 1DT  0800 814 4404 http://www.microtalk.co.uk/ 
Microtalk Wholesale Ltd 4th Floor, West World, West Gate, Ealing, London W5 1DT  0800 814 4404 http://www.microtalk.co.uk/ 
Microtech Sales UK Ltd The Portfolio Centre St Georges Avenue, Northampton, NN2 6FB  01604779014  
Microtech Support Ltd Portland House 38 Portland Road Kilmarnock Ayshire, KA1 2DL  01563 530 480  
Microtechnics Consultants Ltd The School House Cowpen Bewley Billingham Cleveland, TS234HS  01642 562835  
Microtest Ltd 18 Normandy Way, Bodmin, pl311ex  01208261600  
Microtrading Ltd System House 158 Church Road Yardley Birmingham, B25 8UT  0121 784 0077  
Microworld (Yorkshire) Ltd Unit 1, Gatehouse Enterprise Centre Albert Street, Huddersfield, HD1 3QD  0800132201  
Midas Communications Ltd 4 Upper Pavenhill Purton Swindon, sn5 4dq  01793279551  
Midas Telecom Ltd 82-84 York Road, Bristol BS3 4AL  0117 963 8249 http://www.midastelecom.com/ 
Midas Telecom Solutions Number One Waterton Park, Bridgend, CF31 3PH  0844 225 7979  
Midland Communications Company Ltd Orchard Works Backfields Upton upon Severn Worcestershire, WR8 OJH  0800 138 3227  
Midland Networks Group Holdings Ltd 140 Stourbridge Road Halesowen, Halesowen, B63 3UL  01212708700  
Midland Phone Services Plc Shaw House Wychbury Court Brierley Hill West Midlands, DY5 1TA  0330 333 6400  
Midland Tech Solutions Ltd Office 3 82A High Street Bridgnorth Shropshire, WV16 4DS  01746 767 676  
Midland Telecom Networks Ltd 140 Stourbridge Road, Halesowen, Birmingham B63 3UL  0121 270 8700 https://www.midlandnetworks.co.uk/ 
Midland Telecommunications Management Ltd 14 Edward Street, Birmingham B1 2RX  0121 214 1100 https://www.midlandtelecom.co.uk/ 
Midland Telecommunications Management Ltd 255 Hospital Street, Birmingham B19 2YG  0121 333 3488  
Midlands Pro IT Services Ltd 41 Buttercup Road Kettering, Northampton, NN14 2JP  01536 765 687  
Midnight-online (UK) Ltd Midnight-online (OK) Ltd 16 Greenlands Flackwell Heath Bucks, HP10 9PL  07958 103764  
Midpoint Communications Ltd 19 Grosvenor Street, Chester, CH1 4JE  01908665200  
Midshire Business Systems (Communications) Ltd 95-97 Cato Street, Nechells, Birmingham, B7 4TS  0121 359 5559 http://www.midshire.co.uk/ 
Midsys IT Ltd Beaumont Enterprise Centre Boston Road, Leicester, LE41HB  03331014224  
Midus Communications Ltd Midus House 9 Hummingbird Close Bury St Edmunds Suffolk, IP32 7GR  01284 704 339  
Miele Company Ltd Fairacres Marchem Road, Abingdon, OX14 1TW  01235233263  
Might Ltd Suite 114 116 Ballards Lane Finchley London, N3 2DN  02034118936  
Migliori Ltd Bluebells Solomons Lane Shirrell Heath Southampton, SO32 2HU  0345 180 2600  
MigTech IT Solutions Ltd TEDCO Business Centre Viking Industrial Park, Jarrow, NE32 3DT  01914282443  
Mikrotek Solutions Ltd 10 Shelley Close Bicester, Oxon, OX26 2YZ  01869 360 006  
Millbeck Communications Ltd Archway House 30 High Street, Wetherby, LS22 6LT  01937 280 027  
Millbridge Systems Ltd Millbridge Cottage Stump Lane, Hucclecote, GL3 2LT  01452347380  
Millenium Communications Ltd Jupiter House Drummond Road Astonfields Industrial Estate Stafford, ST16 3HJ  0845 873 7335  
Millennium Telecom Ltd 17 Midland Court Oakham, Rutland, LE15 6RA  0870 179 0870 http://www.millennium.ltd.uk/ 
Miller Solutions Ltd Matilda House Carrwood Road, Chesterfield, S41 9QB  01246 266 039  
Miller Waite Ltd Unit 12 Lightburn Trading Estate Lightburn Road, Ulverston, LA12 7NE  01229 588114  
Millgate Connect Ltd 7 Vantage Drive, Sheffield, S9 1RG  0114 242 7310  
Mills Electrical 17 Eastfield Close, Worcester, WR3 7TS  08455088916  
Milne Craig Technology Solutions Ltd 79 Renfew Road, Paisley, PA3 4DA  0141 847 5828  
Milonic Ltd 28 Cold Hatton, TELFORD, TF6 6PZ  07811330643  
Milton Keynes Cabling Ltd 12 Treefields, Buckingham, MK181GP  01908769823  
MIMASM Ltd Boho One Bridge Street West, Middlesbrough, TS1 2AE  0843 224 9088  
Minotaur IT Ltd 6 Meadslade, Hartwell, Northampton NN7 2ES  01604 808708 http://www.minotaur.it/ 
Minotaur Telecom Ltd 10 Cheyne Walk, Northampton NN1 5PT  http://www.minotaurtelecom.com/ 
Minster Micro Computers Ltd 115 Worcester Road Kidderminster, Worcestershire, DY101HU  0156268211  
Mint Chilli IT Consulting 28 Harness Way, St Albans, AL4 9HA  07977520683  
MINT network Ltd 10 Beaumont 6 St. John's Avenue, London, SW15 2AF  07810 433 939  
Mintaka Ltd 2 More London Riverside, London SE1 2AP  020 3499 5050 http://www.dialogagroup.com/ 
Minute One Ltd Harlow Enterprise Hub Hockham Building Edinburgh Way Harlow, CM20 2NQ  020 3096 1240  
MinuteBuyer Corporate Services Ltd 64 Lower Mount Street, Dublin 2 Ireland  +353+1 661 4697  
Minutes Telecom Imperial Court 124 Exchange Street East, Liverpool, L2 2AB  0151 421 2600  
Miracom Ltd Miracom Limited Unit 2 Office 2, Morelands Trading Estate Bristol Road Gloucester, GL1 5RZ  08448 248777  
Mirotel Ltd 147 Albert Road, Portsmouth, PO4 0JW  03300881082  
Mirus IT Solutions Ltd Carina House Sunrise Parkway Linford Wood Milton Keynes, MK14 6NJ  01908257353  
Mirus Telephony Ltd Carina House Sunrise Parkway Linford Wood Milton Keynes, MK14 6NJ  01908 257 365  
Missing Link Communications Ltd Communications House Bradley Hall Trading Estate Bradley Lane Standish, Wigan, WN6 0XQ  01257 473445  
Mission Labs Ltd C/o Crowe Clark Whitehill Llp, 3rd Floor, The Lexicon, Mount Street, Manchester M2 5NT   
Mitec Computer Solutions Ltd Unit 5 AJA Business Centre Laker Road, Rochester, ME1 3EZ  03333231616  
Mitec Telecom Solutions Ltd Unit 5 AJA Business Centre Laker Road, Rochester, ME1 3EZ  03333231616  
Mitel Networks Ltd Castlegate Business Park, Portskewett, NP26 5YR  01291430000 http://www.mitel.com/ 
MJD Systems Ltd 1 The Steadings, Spey Bay, IV32 7QX  01343 821 784  
MJH Computer Services Maycot Quay Lane Kirby le Soken Frinton on Sea, co13 0dp  01255 675515  
MJR Computer Consultants 138 Worksop Road Swallownest, Sheffield, S26 4WE  0114 287 8825  
MJS IT Services Ltd The Royal Stores 152 Offmore Road, Kidderminster, DY10 1SB  01562 748573  
MLCS Ltd 1 Chestnut Close St Ives, Cambs, PE27 6UQ  01480 371 600  
M-Line Telecom Ltd 12 Trinity Crescent, London SW17 7AE  0800 980 5090 http://www.mlinetelecoms.com/ 
M-Line Telecoms Ltd   http://www.mlinetelecoms.com/ 
MLL Telecom Ltd Park House, 5 Mere Park, Dedmere Road, Marlow, Bucks SL7 1FJ  01628 474737  
MMR UK Ltd 11-21 Paul Street, London, EC2A 4JU  020 7300 1100  
MMS Comms Ltd Hermes House 5 Heritage Park Hayes Way Cannock, WS11 7LT  01902 544 135  
MNT Consultancy Ltd Discovery House 3.6, Gemini Crescent Technology Park, Dundee, DD2 1SW  01382250101  
Mobifone Ltd Bradley Court Off Maple Road Castle Donington Leicestershire, DE74 2UT  0845 2702476  
Mobile 5 Ltd Kingfisher House 21-23 Elmfield Road Bromley Kent, BR1 1LT  0845 302 1900  
Mobile Account Solutions Ltd Suckling's Yard Church Street Ware Hertfordshire, SG12 9EN  01920 466 466  
Mobile Account Solutions (Holdings) Ltd Sucklings Yard Church Street, Ware, SG12 9EN  01920466466  
Mobile Business Solutions Ltd C4 Moorfield Point Moorfield Road Slyfield Industrial Estate Guildford, Surrey, GU1 1RU  01483 563 999  
Mobile Cellular Ltd 195 London Road Burgess Hill, West Sussex, RH15 9RN  01444 242 200  
Mobiweb Telecom Ltd Third Floor, 207 Regent Street, London W1B 3HH  020 3318 3618 http://www.solutions4mobiles.com/ 
Mobo Broadband Ltd 4th Floor, 115 George Street, EDINBURGH, EH2 4JN  07922670677  
Modbury Marketing Computer Sentinel House Poundwell Modbury Devon, PL21 0XX  01548 830 710  
Modern Communications Ltd 26 Grays Inn Road, London, WC1X 8HR  0870 444 9891 http://www.modcomms.com/ 
Modern Telephones Ltd 7 Shafford Cottages Lower Road Nash Mills Hemel Hempstead, HP3 8RT  02031950800  
Modrus Ltd Midland House 2 Poole Road, Bournemouth, BH2 5QY  020 3371 6666  
Module IT Ltd Bdg 8/1 Vantage Point Business Village Mitcheldean, Gloucestershire, GL17 0DD  01594 887 399  
Mojocom Systems Ltd Birchwood Cottage Woldingham Road Woldingham, CATERHAM, CR3 7LR  020 3411 6319  
MoJoU Ltd 17 Plover Close, Fareham, PO143PX  01932508844  
Monaghan Consultants Ltd 19 Wellington Rd, stevenage, sg2 9hr  0207 0433142  
Mondial Services Ltd Unit 112 94 Londno Road Headington Oxford, OX3 9FN  01865 750 869  
Monex Telecom Ltd 32 Spring Street, London, W2 1JA  02074022900  
Money Saver Telecom Ltd Tannery Court Tanners Lane Warrington Cheshire, WA2 7NR  01925 401 702  
Monitor Ltd Atrium Court the Ring, Bracknell, RG12 1BW  03455191811  
Castleton Technology Managed Services Ltd Blackbrook House, Dorking RH4 1HJ  01306 888000  
Moodfield Ltd Floor 8 6 Mitre Passage Greenwich London, SE10 0ER  02034755364  
Moonshado Inc    
MoorTalk Ltd Suite 3 9 Park Street Congleton Cheshire, CW12 1EY  01782 510 500  
Moortek Moortek The Old Police Station Kerries Road South Brent, TQ10 9BZ  01364 700290  
Moose Group Ltd 3 Silverwood, Alderbury, SP53TN  07540351449  
Moose Internet Services Ltd Electra house, Wiggenhall Ind Est Wiggenhall Road Watford, Herts, WD18 0FG  01923 238248  
Morcan Ltd 1-3 Snow Hill, London, EC1A 2DH  0845 260 5606  
More Solutions Ltd 21 Drakes Mews Crownhill, Milton Keynes, MK8 0ER  08442511450  
More Talk Communications Ltd Inspire Centre 747 Stockport Road, Manchester, M19 3AR  0161 375 0123  
Morecom Ltd 25 Clarence Street, Pontypool Torfaen, NP4 6LG  01495 755555  
Moremicro Ltd 69 Steward Street, Birmingham, B18 7AF  01213888999  
morethanit Hoskins Barn, Bampton, OX18 2EP  01367870545  
Morita Telecom ltd UNIT 3,ASHLONE WHARF, EMBANKMENT, PUTNEY, LONDON, SW15 1LB  02035970056  
Morpheus Integrated Technologies Ltd Liss BusinessCentre Station Road Liss Hampshire, GU33 7AW  01730 894 834  
Morscot Utilities Ltd 57 Queen Street, Lossiemouth, IV31 6PY  01343544444  
Mosaic Business Systems Ltd The Lodge Tannery Court Tanners Lane Warrington, Cheshire, WA2 7NA  01925 563 678  
Mother Technologies Ltd Davidson House Campus 1, ASTP Balgownie Road Aberdeen, AB22 8GT  01224 350 000  
Motion Communications 11 Whitley Avenue Amington, Staffordshire, B77 3QU  0182751114  
Motion IT Consulting Ltd Unit S3,Keighley Business Centre South Street, Keighley, BD21 1SY  01535 358161  
MotoScotland.com The Maltland Inveraray, Argyll, PA32 8XG  01499 320 460  
Movoda Telecom Ltd Saville Court Saville Place Clifton Bristol, BS8 4EJ  0117 40 30 750  
MPL Systems Ltd Innovation Centre Warwick Technology Park, Warwick, CV34 6UW  01926623500  
MPR IT Solutions Ltd Unit 1 Wotton Trading Estate Wotton Road Ashford, TN236LL  0800 0 302030  
MPSS 3 Knowsley Street, Rochdale, OL12 0PY  07460653918  
MRT Technologies Ltd 67 Chorley Old Road, Bolton, BL1 3AJ  01204 306 357  
MS Bath IT LTD 30 Gay Street, Bath, BA1 2PA  01225 486100  
MSA Systems Ltd Chemix Buildings Dudley Road, Halesowen, B62 8EB  0121 585 0662  
MSH Group Ltd 4 Farthing Court , Cambridgeshire,, St Ives, PE27 5JJ  07375497173  
Microtalk Europe Ltd Westworld West Gate, London W5 1DT  02084972000  
MT Services Computer Systems Ltd 1 Sandy Hill Park Amington, Tamworth, B77 4DU  0182762155  
MTC Communications King Buildings 152 Albertbridge Road, Belfast, BT5 4GS  02890 460 440  
M-Tech Systems Ltd Red Lion House Magham Down, Hailsham, BN27 1PN  08450 511155 http://www.mtechsystems.co.uk/ 
Mulraney Group Ltd Inchview House Kelliebank, Alloa, FK10 1NT  01259 720 444  
Multidata (Europe) Ltd Unit 2 Orchard Business Park Shrivenham Swindon, SN6 8EY  0845 555 3322  
Multinetwork Ltd Hawthorns House Halfords Lane, West Bromwich, B66 1BB  0870 861 0048  
MultiPRO Ltd 1 Blomfield Dale Binfield, Berkshire, RG42 1FY  01344 641 627  
Murja Innovations Ltd Murja Innovations Ltd Eastleigh House Upper Market Street Eastleigh, PO50 9FD  01483 600 832  
Murphx Innovative Solutions Ltd Eastleigh House Upper Market Street Eastleigh Hants, SO50 9FD  0870 034 9100  
Murro Brothers Ltd 56 Captain Street, GREENOCK, PA15 4LQ  01475 788200  
Musicboxset Ltd 33 Church Lane, Bolton, BL5 3PP  01473599019  
Mutu Ltd Mutu Ltd Herons Way Chester Business Park Chester, CH4 9QR  0844 4457500  
MWC Communications Ltd 8 Belbins Business Park Cupernham Lane, Romsey, SO51 7JF  02037279530  
MX Digital Ltd Suite1 Gatwick House Peeks Brook Lane Horley RH6 9ST  0870 777 2008 http://www.mxdigital.co.uk/ 
My Business Communications Ltd 3 Acorn Business Park, Northarbour Road, Cosham, Portsmouth, PO6 3TH  0333 444 0556  
My Comms Technical Services Ltd Unit 9c Swan Lane Business Park, Newmarket, CB8 7FN  084444101021  
My Communications Ltd 27 Old Gloucester Street, London, WC1N 3AX  08444 100 015 http://www.mycommunications.co.uk/ 
My Phone Company (UK) Ltd South Court Sharston Road, Manchester, M22 4SN  01613580060  
My Telecom Group LTD 902 Victory Business Centre somers road north, portsmouth, po1 1pj  0333 123 1383  
MyComms Ltd Borough Hill Farm, Daventry, NN11 4NG  01327828281  
MyDigitalMedia Ltd Unit 1B, HB House Ditton Road Widnes Cheshire, WA8 0WS  0151 601 9515  
myITDepartment Unit 16 Crescent Business Park, Lisburn, BT282GN  02890998792  
myphonebox.net 26 Westgate Old Malton, Malton, YO177HE  07772240982  
MyVoipTraffic PO Box 201, L-2012 Luxembourg  +35 220 881 791 https://www.myvoiptraffic.com/ 
NAC Engineering Services UK Ltd 1-2 Thistle Court Thistle Street, Edinburgh, EH2 1DD  0131 240 8200  
NAC Networkz Ltd 2 Walker Street, Edinburgh Scotland, EH3 7LB  0808 168 4448  
Naglotech Ltd Clacton Road, St Osyth, CO16 8PA  01255 745745  
Naked Servers Ltd Unit 9 Holbrook Commerce Park Holbrook Close, Sheffield, S20 3FJ  01142945369  
Naked Telecom Ltd 70 West Coker Road, Yeovil, BA20 2JA  01935200210  
NAlexis&Co Ltd 28, Townson Avenue,Northolt, London, UB5 6PP  07949248435  
Names.co.uk   http://www.names.co.uk/ 
Namesco Ltd Acton House Perdiswell Park, Worcester, WR3 7GD  0845 3633630  
Nammit Networks Ltd Unit 21 Daish Way Dodnor Industrial Estate, Newport, PO30 5XJ  01983770000  
NAS UK Ltd South Court Sharston Road, Manchester, M22 4SN  0870 8034654  
NatCon Network Services NatCon House 41 Godsey Lane Market Deeping Peterborough, PE6 8HY  01778 341613  
Nathan Gallimore-King 179 Wellington road, Liverpool, L8 4TX  01512161997  
Nation Wilcox Systems Ltd St. Michaels House 196 Boldmere Road, Sutton Coldfield, B73 5UE  01213544345  
National Power Energy Company Windmill Hill Business Park, Whitehill Way, Swindon  SN5 6PB   
Nationwide Telephone Assistance Ltd Ivy Lodge Farm, 179 Shepherds Hill, Harold Wood, Romford RM3 0NR  0800 170 0000 https://www.nta.co.uk/ 
Nationwide Telephone Assistance Ltd Ivy Lodge Farm, 179 Shepherds Hill, Harold Wood, Romford RM3 0NR  01708 320000 http://www.nta.co.uk/ 
Natural Enterprise LTD Natural Enterprise, Northwood House Ward Avenue Cowes Isle of Wight, PO31 8AZ  01983 201560  
Natural Retreats 51 Water Lane, Wilmslow, SK9 5BQ  01625 533 370  
Navertech Ltd Naver House, Thurso, KW14 7QA  01877 892892  
NBCN plc Unit 8 Scotlands Industrial Estate London Road Coalville, LE67 3JJ  0844 375 5730 / 01332 647716  
NCI Systems Ltd 2 Rydens Road Walton-on-Thames, Surrey, KT12 3BS  01932 260 505  
NCI Technologies Ltd 8A Waterside House Falmouth Road Penryn, Falmouth Cornwall, TR10 8BE  01326 379 497  
NCS Group Ltd 65 Rodney Street, Glasgow, G4 9SQ  0141 353 0000  
NCS Network Communications Solutions   http://www.ncs-ltd.com/ 
NCS Support Services Ltd St John's Court Bacup Road Rawtenstall Lancashire, BB4 7PA  01706 239 000  
Ndeavours Ltd 79a Wilslow Road Handforth Wilmslow Cheshire, SK9 3EN  01625 528867  
NDG Technology Ltd Reginson House Whitacre Industrial Estate Whitacre Road Nuneaton, CV11 6BX  01162983168  
NE Solutions Ltd Technical Centre Derwent Street Chopwell Tyne & Wear, NE17 7HY  01207 565 950  
Nebula IT Services Ltd Unit 10a Church Farm Business Park Corston Bath, BA2 9AP  01454 534009  
Nebular Cloud LTD 5 Arbour Close, Macclesfield, SK10 2JA  01625837990  
Nectar Cloud Ltd 54A High Street, Redbourn, St Albans AL3 7LN  0845 060 3030 http://nectarcloud.co.uk/ 
Need More Time Ltd Amphenol Business Complex, Thanet Way, Whitstable, Kent CT5 3SB  020 3303 3303 http://www.needmoretime.co.uk/ 
NEG Technologies Ltd Framlingham Technology Centre Station Road, Framlingham, IP13 9EZ  01728 726 633  
Nemo Group (UK) Ltd Unit 8 Whittle Court Knowlhill, Milton Keynes, MK5 8FT  08000092112  
Neo12 Ltd Empire House Empire Way, Wembley, HA9 0EW  08444142502  
Neon Digital Document Solutions Ltd Suite 301 Mill Studio Business Centre Crane Mead, Ware, SG12 9PY  01920 444 220  
Neos Comms 207 Liverpool Road Cadishead, Manchester, M44 5BZ  0161 7778 8111  
Neo-Tel Ltd Newton Hall Town Street Newton Cambridge, CB2 7ZE  01223 872 055  
Neoteric Networks Ltd Building 67 Europa Business Park Bird Hall Lane Stockport, SK3 0XA  0161 393 5700  
Net Essence Ltd 129 Arlington Drive, Carshalton, SM5 2EU  +44 (0)20 3137 3719  
Net Primates   http://www.netprimates.co.uk/ 
Net Pro 1 Carnany Court, Ballymoney, BT53 7ER  07783 793606  
Net Solutions Europe Ltd 870 The Crescent, Colchester CO4 9YQ  020 3161 6000 http://www.nse.co.uk/ 
Net Support UK Ltd Riverside Court Beaufort Park Way, Chepstow, NP16 5UH  02920 022 300  
Net Technical Solutions Ltd The Millennium Centre Crosby Way Farnham Surrey, GU9 7XX  01252 235235  
Net Technics Comms Ltd 49a Essendene Road, Caterham, CR3 5PB  01883708480  
Net Telecoms Ltd Narramore House Waterrow Taunton Somerset, TA4 2BG  0845 5199 380  
Net1 (NI)   http://net1.co.ni/ 
Net365 Ltd 167-169 Sunbridge Road, Bradford, BD1 2HB  01274900100 http://www.net365.biz/ 
Net3Security Ltd 152-154 Coles Green Road, London, NW2 7HD  0845 130 4680  
Net4Ed Ltd 7 St Helens Close, Telford, TF1 3GF  0870 392 4993  
Netappliant Ltd Clynebury Lodge Great North Road Chesterton Peterborough, PE7 3UJ  0845 154 3560  
Netarcs Ltd 8-10 pembroke buildings scrubs lane, london, NW10 6RE  07714758293  
Netcalibre Ltd - PO Box 11 Brighouse, West Yorkshire, HD6 1NH  020 3026 2626  
Netcall Solutions Ltd 1st Floor, 14 Church Street, Iikley, West Yorks LS29 9DS  01202 065065 http://www.netcallsolutions.co.uk/ 
Netcloud9   http://www.netcloud9.co.uk/ 
Netco Consulting Ltd 2 Mulberry Place Pinnell Road, London, SE9 6AR  02033580500  
Netco Networks Ltd 101 High Street Tring, Herts, HP23 4AB  01442 381 381  
Netcom Solutions & Services Ltd Coveham House Downside Bridge Road Cobham Surrey, KT11 3EP  01932 588774  
Netcom Technologies Ltd 141-145 Abbeydale Road, Sheffield, S7 1FE  0114 321 6146  
Netcoms.co.uk Ltd One Dunston Court Dunston Road, Chesterfield, S41 8NL  0844 887 0287  
Netcoms.co.uk (Holdings) Ltd Dunston Court Dunston Road, Chesterfield, S41 8NL  0844 887 0287  
Netconnection Systems Ltd Green Dragon House 64-70 High Street, Croydon, CR0 9XN  020 8649 6200  
Net-Ctrl Ltd Comms House Cromwell Court 5 GreyFriars Road Ipswich, IP1 1UP  01473 281 211  
Netdatatel Ltd 4 North Guildry Street, Elgin, IV30 1JR  01343 811 800 http://www.netdatatel.co.uk/ 
NETECH IT Solutions LTD 15 The Glade North Walbottle, Newcastle upon Tyne, NE15 9XJ  01912676766  
Neteffekt Ltd Unit 1 Park Farm Barns Packington Lane, Stonebridge, CV7 7TL  0333 939 0013  
Netfuse Telecom Ltd Unit 11 Hove Business Centre, Fonthill Road, Hove, Sussex BN3 9HA  056 0004 5001 http://www.netfuse.net/ 
Neticonic Ltd 75 Corporation Street St Helens, Merseyside, WA10 1SX  01744 762 020  
Netknow Ltd 4 Gatchell Meadow Trull Taunton Somerset, TA3 7HY  01823 257240  
Netkonect Communications PLC Dissolved January 2011.   
Netmatters Ltd Unit 11 Penfold Drive, Wymondham, NR18 0WZ  01603704020  
Netmetix Ltd 4 Sycamore Court Birmingham Road Allesley Coventry, CV5 9BA  024 7640 8100  
Netopian Ltd Unit 50, Louis Pearlman Centre Goulton Street, Hull, HU34DL  01482333170  
Net-Phone   http://www.net-phone.net/ 
Netplan Internet Solutions Ltd The Techno Centre Puma Way, Coventry, CV1 2TW  08707 518 345  
Netpremacy Ltd 100 Wellington Street, Leeds, LS1 4LT  0113 237 3072  
Netpresto Ltd 9-11 Wellington Street Gateshead Tyne & Wear, NE8 2AJ  0191 478 2233  
Netresult.uk.com Ltd The Old Post Office Upton Andover Hants, SP11 0JS  01264 736 770  
Netronix Ltd Netronix House Wigeon Grove, Apley, Telford, Shropshire, TF1 6GZ  01952 898 666  
Netserv Internet Solutions Ltd 51a Station Road, Birmingham, B377AB  01217703730  
Netserve Ltd Bellevue House, 4 Bellevue Road,, Southampton, SO152AY  02380000999  
Netservers Ltd 21 Signet Court Swann Road Cambridge Cambridgeshire, CB5 8LA  01223 446000  
NetServices Plc 30 Mowden Rd Sandpiper Quay, Salford, M3 3EZ  0870 1630 143  
Netstar UK Ltd Jameson House 146-148 Clerkenwell Road Farringdon London, EC1R 5DG  020 7101 0545  
Netteam Consultants Ltd 12 Kingfisher Court Hambridge Lane Newbury Berkshire, RG14 5SJ  01635 262 560  
Net-Telco   http://www.net-telco.net/ 
nettelecom Communications Services Ltd Block A Southgate Office Village 284 Chase Road Southgate London, N14 6HF  02089205270  
Nettitude Ltd 1 Jephson Court Tancred Close, Leamington Spa, CV31 3RZ  08455200085  
Netuity Networks Sp. z o.o. al. Wincentego Witosa 16, Lublin, 20-315  +1.888.890.8905  
NetVector Consulting Ltd Chequers Barn Bough Beech Edenbridge Kent, TN8 7PD  01732 743 300  
NetvisionIP Ltd 15 Kings Road Calf Heath, Wolverhampton, WV10 7DU  01902 585 301  
Net-Voice   http://www.net-voice.net/ 
NetWeaver.com Ltd Unit 11 Mead Way Padiham Burnley, BB12 7NG  01282901000  
Net-Work   http://www.net-work.net/ 
Network 79 Ltd Office 6b KPC House Canterbury Road, Ashford, TN24 0BP  01233270270  
Network and Internet Management Services Thorntree House Springholm Castle Douglas Dumfriesshire, DG7 3LP  01556 510030  
Network Billing Services Ltd Exchange House, 1 Selden Hill, Hemel Hempstead HP2 4TN  0800 508 8880 http://networkbillingservices.co.uk/ 
Network Billing Services (NBS) Ltd Network House 36-38 Thornhill Park Road, Southampton, SO18 5TQ  023 8047 5900  
Network Bridge Solutions Ltd Unit G38B Waterfront Studios 1 Dock Road, London, E16 1AH  02036960535  
Network Communications Solutions Ltd 65 Rodney Street, Glasgow, G49SQ  01413530000  
Network Connect Ltd Egret Mill 162 Old Street Ashton Under Lyne Lancashire, OL6 7ST  0161 2142000  
Network Consolidation & Infrastructure Services Ltd Unit 12, Swan Lane Business Park, Swan Lane, Exning Newmarket, CB8 7FN  01638578913  
Network Cube Ltd Holly Cottage Farm Road, Great Oakley, CO125AL  0844 249 2854  
Network Europe Group Ltd 14 The Capricorn Centre Cranes Farm Road Basildon Essex, SS14 3JJ  08444 771 771  
Network Extender Technologies Ltd Meridian House Road One Winsford Cheshire, CW7 3QG  01606 868100  
Network Fusion LLP The Hopkiln Bury Court Bentley Farnham, GU10 5LZ  02031312220  
Network I Ltd 227 Berwick Avenue Slough, Berkshire, SL1 4QT  020 8230 2113  
Network Integration Technologies LLP carrwood park, leeds, ls154lg  01133410123  
Network Integrity Services Ltd PO Box 102 Bramhall Stockport Cheshire, SK7 1YJ  0345 004 7258  
Net-Work Internet Technology House, Rhewl Ruthin, Denbighshire, North Wales LL15 1TN  033 0220 2253 http://www.net-work.net.uk/ 
Network IT Systems Ltd 1 North St, Dudley, DY2 7DT  08452 600 286  
Network Maintenance Ltd Unit 4 Snowhill Business Centre, Copthorne, RH10 3EZ  01342714301  
Network Needs Ltd Airmed House Edinburgh Way Harlow Essex, CM20 2ED  0845 8059383  
Network Rail Infrastructure Ltd 1 Eversholt Street, London NW1 2DN  020 7557 8000 http://www.networkrail.co.uk/ 
Network ROI Ltd Stobo House Midlothian Innovation Centre, Edinburgh, EH25 9RE  01315102210  
Network Sales & Solutions Ltd Nycomm Agecroft Road Pendlebury Swinton Manchester, M27 8SB  0161 925 1900  
Network Services Sarisbury Business Park 33a Painswick Close Sarisbury Southampton, SO31 7EQ  08000 747700  
Network Services.com Ltd Riverside House, 1 Place Farm, Wheathampstead AL4 8SB  0845 678 6656 http://www.nsltelecom.co.uk/ 
Network Services.com t/a NSL Telecom Management   http://www.nsltelecoms.co.uk/ 
Network Strategy Ltd 330 High Holborn, London, WC1V 7QT  020 7566 1185  
Network Support London LTD Southbridge House Southbridge Place Croydon Surrey, CR0 4HA  0844 884 5196  
Network Support Solutions Ltd Suite A Mercury House Shrewsbury Business Park Shrewsbury, SY2 6LG  01743 290 588  
Network Telecom (UK) Ltd Communications House, Hadley Park, Telford TF1 6QJ  0800 097 6543 http://www.networktelecom.co.uk/ 
Network Telecom Solutions LLP Communications House Hadley Park Hadley Telford, TF1 6QJ  0345 4500333  
Network999 ltd 59 breck lane, sheffield, s25 2lj  01909518275  
Net-workedcouk Ltd Unit 5F Bestwood Business Park Off Park Road, Bestwood Village Nottingham, NG6 8TQ  0115 822 0036  
Net-Work-M Ltd Saffron House Gaddum Road Altrincham Cheshire, WA14 3PD  0870 444 6564  
Networks Direct PLC P.O. Box 378, Peterborough, PE2 6FY  08708 100 000  
Networks First Ltd Number One Paper Mill Drive Church Hill South Redditch Worcestershire, B98 8QJ  0845 850 1177  
Networth Telecom 33 Avenue Duquesne, 75007 Paris  +33 144 117115  
Neutrino Networks Ltd 1 Cornhill, London EC3V 3ND  http://www.neutrinonetworks.co.uk/ 
Nevcom Ltd 8 Dungoil Avenue, Glasgow, G68 9BQ  08456436451  
Nevis Computers Ltd 16 Wool Gate Cottingley Business Park Bingley West Yorkshire, BD16 1PE  01274 550910  
New Call Telecom Ltd 3rd Floor, 27A Floral Street, London WC2E 9EZ  020 7195 5050 http://www.newcalltelecom.co.uk/ 
New Forest Telecom 1st Floor, Coronation House Queen Street Lymington Hampshire, SO41 9NH  01590 688 666  
New Image Communications Ltd 505 PINNER ROAD, HARROW, HA2 6EH  01895450622  
New Land Solutions Ltd 102 Marmion Road, Southsea, PO5 2BB  0845 130 4289 http://newland.solutions/ 
New Media Software Ltd 1 Canute Road, Southampton, SO14 3FH  02380 382 903  
New Prospect Business Solutions Ltd 29 Welbeck Road, Maidenhead Berkshire, SL6 4EB  0870 116 7676  
New Star Networks Ltd Unit 9, 14 Station Road Henley-on-Thames, Oxfordshire, RG9 1AY  08000 546200 http://www.nsn.co/ 
New Vision Telecom Ltd 466 Cranbrook Road Ilford, Essex, IG2 6LE  02081236322  
New World Network Services Ltd 177 Hook Road Surbiton, Surrey, KT6 5AR  0208 407 5757  
Newbury Internet Services 23 Kingsland Grange, Newbury, RG14 6LH  01635 569123  
Newenden Associates Ltd 57 Bower Place Maidstone, Kent, ME16 8BG  01622 620 800  
NewFox Ltd 20 Baildon Mill Northgate Baildon West Yorkshire, BD17 6JX  01274 294 074  
Newman Business Solutions Newman House Farningham Road Crowborough East Sussex, TN6 2JR  01892 664155  
Newreg Ltd Recycling Lives Centre Essex Street, Preston, PR1 1QE  01772665942  
NewVoiceMedia Ltd NewVoiceMedia House, Jays Close, Basingstoke, Hants RG22 4BS  020 7785 8888 http://www.newvoicemedia.com/ 
NewWave Broadband Ltd 93 George Street, Edindurgh, EH2 3ES  0131 240 1232  
Nexanet Ltd New Romeny Business Centre Unit 12, Mountfield Road New Romeny Kent, TN28 8LH  01797 363779  
Nexbridge Communications Ltd 5th Floor, Oxford Place, 61 Oxford Street, Manchester M1 6EQ  0345 680 0800 https://nexbridge.co.uk/ 
Nexcom Communications (Mobile) Ltd 18-20 Stoke Road, Slough, SL2 5AG  020 7517 0990  
Nexet Ltd 14 Sandringham Close, Seaford, BN253EB  01323897307  
NexGen Business Ltd 38 First Avenue Bexleyheath, Kent, DA7 5SX  0203 362 4318  
Nexsis Comms Ltd 59 Longfield Lane IIkeston, Derby, DE7 4DX  08000 803080  
Next Business Telecom Ltd Level 2 48-54 Moorgate, London, EC2R 6EJ  0800 054 6642  
Next Communications and Security Ltd 449 Millbrook Road West Millbrook Southampton Hampshire, SO15 0HX  02380 764 454  
NeXT I.S. Ltd Cambridge House 67-69 Woodham Lane New Haw Surrey, KT15 3ND  0870 111 8080  
Nextcall Telecom PLC 10 Stratton Street, London, W1X 5FD  020 7731 3300 http://www.nextcall.co.uk/ 
Nextec (UK) Ltd Tithe Barn, Salwarpe, Droitwich, Worcester WR9 0AH   
Nextgen Digital Ltd 58 Strawberry Ave, Leeds, LS251EE  01133506116  
NextGenAccess Ltd The Orangery Seckford Hall Road Woodbridge Suffolk, IP12 4DA  020 8778 7338  
Nextiraone UK Ltd Aldershaw Hill Claypit Lane, Lichfield, WS14 0AQ  01276 804 074  
Nexus GS Ltd C11 Generator Wharf Electric Wharf, Coventry, CV1 4JL  024 7622 3865  
Nexus IP Ltd 278 Chase Road, Southgate, N14 6HA  0345 200 1770  
Nexus IP Network Services LLP 278 Chase Road, London, N14 6HA  03452001770  
Nexus Telecommunications Ltd Zicon House, Belgrave Street, Leeds LS2 8DD  0844 414 2001 http://www.nexusuk.com/ 
NFON UK Ltd 140 Wales Farm Road, London W3 6UG  020 3740 6740 https://www.nfon.com/ 
NG Bailey IT Services Ltd 7 Brown Lane West, Leeds, LS12 6EH  0845 126 1266  
ng experts ltd 329-339 Putney Bridge Road, London, +442036406670  +442036406670  
NG Network Consultancy 13 Titmuss Avenue, Thamesmead, London SE28 8DH   
NGC Network Services Ltd 1285 Century Way Thorpe Park, Leeds, LS15 8ZB  0844 980 0340  
NGN Communications Ltd Salisbury House 81 High Street Potters Bar Herts, EN6 5AS  01707 291250  
NGN Express Ltd Aston House, Cornwall Avenue, London N3 1LF   
NGN Telecoms Ltd 52 Grosvenor Gardens, London, SW1W 0AU  020 7824 5152  
NGO Consulting Ltd Carlow Heathview Road Milford Godalming, GU8 5DF  01428 792 222 http://www.ngoconsulting.com/ 
niche telecoms ltd the custard factory zellig unit 114 gibb street birmingham, b9 4at  01216471668  
Nigel Bateman 5 Pasture Way Sherburn in Elmet, Leeds, LS25 6LQ  01977689630  
Nimans Ltd 1st Floor Unit 6 Temple Point Finch Drive Leeds, LS15 9JL  0844 848 0965 http://www.nimans.net/ 
Nimbos Communications Ltd First Floor 9 Radford Crescent, Billericay, CM120DU  02071832614  
Nimbus Medical Ltd Suite 4, Eastham hall Eastham Willage, Wirral, CH62 0AF  01513280286  
NimbusWeb Ltd Talbot House 204 Imperial Drive, Harrow, HA2 7HH  0208 845 7777  
Nine Telecom Ltd Pegasus House, Unit 602 Stonehouse Business Park, Stonehouse, Glos GL10 3UT  0800 970 2999 http://www.ninetelecom.co.uk/ 
Nine Telecom Wholesale Ltd Marbridge House Enterprise Way Edenbridge Kent, TN8 6HF  0800 970 2999  
Ninehundred Communications Ltd White Rose Way Doncaster Carr, Doncaster, DN4 5JH  0845 600 4900 http://www.ninehundred.co.uk/ 
Ninex Telecom Ltd 12 Marion Street, Oldham, OL82AW  07460501130  
Ninja Unified Communications Ltd Cammach Business Centre Greenbank Road East Tullos Aberdeen, AB12 3BN  01224 945555  
Nippy Gecko IT Ltd Block E 286A Chase Road, London, N14 6HF  02033842135  
NITEL    
Nitrex LTD 1 Enterprise Court Lakes Road Braintree Essex, CM7 3QS  0800 612 2110  
NivaCom Ltd 6 Iona Road, Leicester, LE7 1QP  +441162960005  
Nix Communications Group Ltd Unit 8 Wichester Hill Business Park Winchester Hill Romsey Hants, SO51 7UT  0844 318 5000  
NJK Computer Services Ltd Fernden House Chapel Lane Stockton Heath Warrington, WA4 6LL  01925 634407  
Nk Computer Services Ltd 11 WOODSIDE END ALPERTON WEMBLEY MIDDX, HA0 1UR  02089036770  
NKIT Systems Ltd 1 Ladythorne Drive, Manchester, M25 9RP  01619370435  
No Problem Managed It Services Ltd 6-8 PAXTON PLACE, LONDON, SE27 9SS  02086764441  
No Worries Glanrafon Fawr, Caernarfon, LL54 7PY  01286805004  
Antheus Telecom Ltd Summersong Ashburton Road Bovey Tracey Newton Abbot TQ13 9BZ  0845 868 5140  
Noble Telecom Ltd (dissolved January 2013)   
Node4 Ltd Millennium Way, Pride Park, Derby DE24 8HZ  0845 123 2222 https://www.node4.co.uk/ 
Nodemax Ltd 145-157 St John Street, London EC1V 4PW  020 3390 1000 http://www.nodemax.com/ 
Noise Comms Ltd 23 Salisbury Road Business Park Salisbury Road, Pewsey, SN9 5PZ  01672565430  
Nomical Ltd Suite S5/S6 Lock 50 Business Centre Oldham Road Rochdale, Lancashire, OL16 5RD  08443 843000  
Nomis Connections Ltd 11a Kings Road Connections House Fleet Hampshire, GU51 3AA  08448 809900  
Norcom Ltd Unit 37 Old Brewery Lane, Newtownards, BT23 4AD  02891 310048  
Norisco Ltd 60 Tabernacle Street, London, EC2A 4NB  020 7324 2200  
Normanton Telecom Ltd Le Fort Church Lane, Normanton, WF6 1SA  07450359875  
Normanton Telecoms Group PLC Le Fort Church Lane, Normanton WF6 1SA  07450359875  
Normanton Telecoms Group PLC Le Fort Church Lane, Normanton, WF61SA  03304450078  
Norsa Ltd Unit 2 Manor Farm Aust, Bristol, BS36 4AT  01454 632 344  
Nortelco Fixed Line Ltd Asquith House Leyburn Business Park Harmby Road Leyburn, North Yorkshire, DL8 5QA  01969 625 035  
North American Gateway Ltd 140-142 King's Cross Road, London, WC1X 9DX  020 7575 7500  
North American Science Associates Ltd Medvance House, Burn Grange Doncaster Road, Burn, Selby, YO8 8LA  01757 270964  
North West Telecom Ltd New Brunswick Street, Horwich, Bolton, BL6 7JB  0870 872 4130  
Northamber PLC    
Northarbour Ltd Kao Hockham Building Edinburgh Way Harlow Essex, CM20 2NQ  0845 862 0762  
Northdoor plc 1-3 Dufferin Street, London, EC1Y8NA  02074488500  
Northern Parking Services (North East) Ltd 22 Wenlock Road, London, N1 7GU  01914250317  
Northern Retail Services (Scarborough) Ltd 4c Dunslow Court Eastfield, Scarborough, YO11 2JD  01723 581559  
Northern Telecommunications Ltd    
Northsat Ltd 22 Westfield Drive,, Inverness, IV2 5TR  01463 795365  
Northstar Telecom Ltd 4th Floor Wynne Jones Building Ellison Place, Newcastle upon Tyne, NE1 8ST  0845 521 6465  
Not Just Computers Ltd Broadway House 3-5 High Street Bromley Kent, BR1 1LF  020 3004 2050  
NoticeBoardTv Ltd Didcot Enterprise Centre Hawksworth Southmead Industrial Park Didcot, OX11 7PH  01635 881 188  
Nouveau Solutions Ltd Technology House 15 Headley Road Woodley Berks, RG5 4JB  0845 055 6066  
Nova Communications Ltd Bridge Street, Derby, DE1 3LA  0845 413 0128  
Nova IT Solutions 73 Watling Street, London, EC4M 9BJ  02031028342  
Nova Telecom    
Novatech Ltd Harbour House Hamilton Road Cosham Hampshire, PO6 4PU  023 9232 2762  
Novosco Ltd Concourse Building 1 Queens Road, Belfast, BT3 9DT  028 9081 7171  
Nowcomm Ltd The Nowcomm Building Stanier Way Wyvern Business Park Derby, DE21 6BF  01332 821 100  
Nowtel Wholesale Ltd Anchor Brewhouse, 50, Shad Thames, London SE1 2LY  0871 332 9189 http://www.nowtelcards.com/ 
NowYoYo Ltd 1 North Poulders Farm Sandwich, Kent, CT13 9JE  0800 0546 111  
Npower Ltd Windmill Hill, Business Park, Whitehill Way, Swindon SN5 6PB  01793 877777 http://www.npower.com/ 
NR30 Services Ltd Fastolff House 30 Regent Street, Great Yarmouth, NR30 1RR  01493 334 000  
NRG Telecom Ltd Lower Ground Floor 33 Princess Street, Rochdale, OL12 0HA  0845 120 0270  
NS Optimum Ltd Unit 7a Jenton Road, Leamington Spa, CV31 1XS  01926880300  
NSIS Systems LLP 405 Strand, London, WC2R 0NE  020 7240 4942  
NSM (Sidcup) Ltd 1-4 The Mews Hatherley Road, Sidcup, DA14 4BH  02083022626  
NT Independent Networks Ltd Unit 12 H20 Businsss Park Lake View Drive, Nottingham, NG15 0HD  01159 517 000  
NTE Ltd 7 Camberwell Way Moorside Park Doxford International Business Park Sunderland, SR3 3XN  0345 034 6622 http://www.ntecoms.com/ 
Ntel Communications Ltd Network House 2 Connaught Avenue, London, E4 7AA  0844 887 1688  
nTrust Systems Ltd 26 Holmethorpe Avenue Redhill, Surrey, RH1 2NL  03331 506070  
NTS Technology Partners Ltd Deer Park House Network Point Range Road Witney, OX290YN  01993777780  
Nuage Communications Ltd 20 Canal Reach Andwell Hook Berks, RG27 9QN  01628 906 074  
Nubiacom Ltd Corby Enterprise Centre, Corby, NN17 5EU  01536737282  
Nuco Technologies Ltd Unit 1 Northampton Science Park Kings Park Road Moulton Park Northamptonshire, NN3 6LG  0844 745 1300  
Nueon IT Solutions LTD 5 Elm Grove Grotton, Oldham, OL4 4LL  01618832050  
Number Solutions    
Numbergroup Network Ltd Unit 1, Ansty Court, 31 Caroline Street, Birmingham B3 1UQ  0800 310 1010 http://www.numbergroup.com/ 
Numbers Direct Ltd    
Numbers Directory Ltd Delta House Wavell Road, Manchester, M22 5QZ  0844 979 8892  
Numbers Plus Ltd Manor Coach House, Bristol Road, Keynsham, Bristol BS31 2BB  0333 301 2233 https://www.numbers-plus.com 
Numbers Telecom Ltd 43 Berkeley Square, Mayfair, London W1J 5FJ   
Numbersales.com Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ  0800 449966 https://numbersales.com/ 
TelecomIQ Ltd Upper Level, Turnbridge Mills, Quay Street, Huddersfield HD1 6QT  033 0990 0000 https://www.numbersiq.co.uk/ 
Numeric Futures Ltd 168 Holiday Street, Birmingham, B1 1TJ  0333 300 0300  
Nuvoli Ltd Home Farm House Church Road Elford Staffordshire, B79 9DA  020 3375 4999  
NV Integration Ltd 242 Acklam Road, London, W10 5JJ  020 7205 2325  
NW Systems Group Ltd Claddagh Business Centre New Hall Lane Hoylake Wirral, CH47 4BP  0151 633 2111  
NWIMS Communications Ltd The Stables Kirkby Lonsdale Road, Carnforth, LA6 2NZ  01539 234050  
NWP Spectrum Ltd PO Box Hemel Hempstead, Herts, HP2 4WA  01442 205 500  
Nxcoms Ltd 33 Conisbrough Place Whitefield, Manchester, M45 6EJ  01617663629  
Nxtgen Consulting Ltd Office 4 19 Market Square, Sandbach, CW11 1AT  08458050901  
Nycom Business Services Ltd 8 Horizon Court Clifton Moor York North Yorkshire, YO30 4RB  01904 653 383  
Nye-Uk Ltd Unit 6 Lower Edgebold, Shrewsbury, SY5 8NY  01743 861290  
NYnet Ltd Douris House Roecliffe Business Centre Roecliffe Boroughbridge, YO51 9NE  01423 323 961  
Nynex Communications Ltd 4 Cromwell Court,, Oldham, OL1 1ET  01616335423  
Oak Telecom Ltd 7 Albany Park Cabot Lane Poole Dorset, BH17 7BX  01202 607 000  
Oakford Internet Services Ltd 9-10, Prince Maurice Court, Devizes, SN10 2RT  03302 230 230  
Oakhill Voice Solutions Ltd AU30 The Innovation Centre Bletchley Park Milton Keynes, MK3 6EB  01908 889490  
Oakleaf Telecoms Ltd Unit 27 Kilwee Business Park, Belfast, BT17 0HD  0800 2055576  
Oasis Communication Services Ltd 27 Nevill Street, Abergavenny, NP7 5AA  029 2061 5588  
Oasis I.T. Company Ltd Unit 17 Goldthorpe Industrial Estate, Commercial Road Goldthorpe, S63 9BL  01709891529  
Oasis Technology Ltd 17 Ambleside Way Nuneaton, Warwickshire, CV11 6AT  01455 240 140  
O-Bit Telecom Ltd Park House, 38 Station Road, High Wycombe, Bucks HP10 9UN  0800 849 4949 http://www.o-bit.net/ 
Oblivion Media 184 Well Hall Road, London, SE9 6SR  01797 208037  
Obsidian Networks Ltd Chantry Court, Chester, CH1 4QN  01244569928  
OC Communications 3 Hazel Grove, Dinas Powys, Cardif CF64 4TE  0845 458 8485 http://www.occuk.co.uk/ 
Ocean Data & Voice Services Ltd 2 Ocean Quay Marina Belvidere Road, Southampton, SO14 5QY  0845 050 5656  
Ocean Digital Ltd Clifton House 10 Poole Hill, Bournemouth, BH2 5PS  01202 788496  
Ocean Telecom UK Ltd Unit 1 Glovers Meadow Oswestry Shropshire, SY10 8NH  01691 661 177  
Ocean Unified Communications Ltd 110 Clifton Street, London, EC2A 4HT  0845 006 6800  
Ocean Voice and Data Ltd 6 The Matlings Hoe Lane Ware Hertforshire, SG12 9LR  0870 2202768  
OCM Communications Ltd Forward House 17 High Street, Henley in Arden, B95 5AA  01564 420 980 http://www.ocmcommunications.co.uk/ 
OCS-UK IT Ltd 9 Well Lane Barnwell, Peterborough, PE8 5PF  0844 991 0036  
Octagon Communications Ltd Octagon House 2 Astley Court Lockett Road Ashton-in-Makerfield, WN4 8DE  08456 787878  
Octagon Telecom Ltd Sterling House Langston Road Loughton Essex, IG10 3TS  020 3651 8000  
octavian it ltd 175 Huntingdon Street, Nottingham, NG1 3NL  0115 77 88 409  
Octex 10 Horseshoe Business Park Lye Lane Bricket Wood St. Albans, AL2 3TA  07801882835  
Octopus Telecom Ltd 8 Lombard Road Wimbledon, London, SW19 3TZ  0800 0283 166 http://www.octopustelecom.co.uk/ 
Octotech Ltd 30 Worthing Road, Horsham, RH12 1SL  01403 603103 http://www.octotech.co.uk/ 
Odyssey Systems Lockheed Court, Preston Farm, Stockton-on-Tees TS18 3SH  01642 661800 http://www.odyssey-systems.co.uk/ 
OEM Computer Systems Ltd St Helens Lodge 3 Parsons Lane, Sharnford, LE10 3PY  07976724833  
OERS Ltd 32 Birchdale Avenue Heald Green Cheadle Stockport, SK8 3ST  0161 436 0625  
Office Machine Repairs Ltd 2 Lessingham Avenue Clayhall Ilford Essex, IG5 0BJ  02085503433  
Office Pro Telecoms 139 Rooley Lane, Bradford, BD5 8JH  07548884070  
Office Unlocked Ltd 41 Lordsmead Cranfield Lidlington Beds, MK43 0HP  03333 209 020  
OfficeAnyplace Ltd 42 Tamworth Road, Croydon, CR0 1XU  02082537253  
Offline GSM Ltd - 47 Prior Street, Lewes East Sussex, BN7 1HJ  0870 7584465  
Offsite IT Ltd Unit 3, Monument offices, Maldon Road Woodham Mortimer Maldon, CM9 6SN  01621 850550  
Ogilvie Communications Ogilvie Communications Ogilvie House 200 Glasgow Road Stirling, FK7 8ES  01786 810 810  
Oi ! Business Telecoms Ltd Ashgrove Green Lane Tutbury Burton on Trent Staffordshire, DE13 9NN  08442 470101  
Olive Fixed Line Services Ltd 1st Floor, Tal House 575 North End Road Wembley Middx, HA9 0UU  0870 444 1083  
Olive Unifield Communications Services Ltd Olive House Kings Square, High Wycombe, HP11 1RX  020 8166 4466  
OllyCom 30 Cuerdale Sreet, Burnley, BB102EP  07486914391  
Omnes Loquantur Ltd Beacon House Newtown, West Pennard, BA6 8NL  03333 407 710  
Omniis Ltd 121 High Street, Berkhamsted, HP4 2DJ  01442299282  
On Air Telecom Ltd Westpoint 501 Chester Road, Manchester, M16 9HU  0161 9060845  
On Direct Business Services Ltd - The Tramshed Beehive Yard Walcot Street Bath, BA1 5BB  0800 0789438  
On Line Systems (Northern) Ltd    
On Line Systems Northern   http://www.online-systems.co.uk/ 
On Telecom (UK)   http://www.ontelecomuk.com/ 
Onbrand Group Ltd 29-45 High Street 4th Floor Middlesex House, Edgware, HA8 7UU  02089319300  
On-Communications Ltd The Quadrant 99 Parkway Avenue, Sheffield, S9 4WG  08704 296745  
One (UK) Ltd Unit H3A Dawkins Road Industrial Estate Poole Dorset, BH15 4JY  01202 596 520  
One Big Solution 3 Onslow Avenue, Sutton, Surrey  0845 413 2600  
One Call Telecom Ltd 170 Midsummer Boulevard, Milton Keynes, MK9 1BP  03333052234  
One Connectivity Ltd 10 Glover Road Castle Donington, Derbyshire, DE74 2GL  01332 811890 http://www.oneconnectivity.co.uk/ 
One Education Ltd Universal Square No 1 Devonshire Street North Ardwick Manchester, M12 6JH  0844 967 1113  
One Horizon Group Plc Third Floor, Russell Square House, 10-12 Russell Square, London WC1B 5LF  020 7509 9345 http://www.onehorizongroup.com/ 
One Network Ltd (dissolved May 2009)   
One Point Telecom One Point Telecom 9 Sundial Court Tolworth Rise Tolworth, Surrey, KT5 5RN  08704 424 343  
One Source Communications Ltd 16 Commerce Road, Peterborough, PE2 6LR  0845 127 1421  
One Step Telecom Ltd 5 Jupiter House Calleva Park Aldermaston Reading, Berkshire, RG7 8NN  0118 373 2015  
One Stop Computers (STOKE) LTD 173-175 London Road, Stoke on Trent, ST4 5RW  01782 847208  
One Tek Business Solutions Ltd Merdian House Winsford, Cheshire, CW7 3QG  0844 993 4147  
One2call Ltd Unit 16 Longacre Close Halfway Sheffield, S20 3FR  0800 9555 866  
One36 Computing Ltd 136 Comiston Road, Edinburgh, EH10 5QN  0131 466 7748  
OneBill Telecom Ltd PO Box 72283, London SW1P 9NW  0844 880 0444 http://www.onebilltelecom.com/ 
Onebyte Ltd 27 St Andrews Street, Norwich Norfolk, NR2 4TP  0845 034 7760  
OneCloud Networks Ltd 302B Regal House, 70 London Road, Twickenham TW1 3QS  020.3909.8600 https://www.onecloudnetworks.co.uk/ 
Onecom Ltd Gleneagles House 4400 Parkway, Solent Business Park Whiteley Fareham, Hampshire, PO15 7FJ  01489 587200 http://www.onecom.co.uk/ 
Onega Ltd Studio H, Container City 2 Trinity Buoy Wharf Orchard Place, Docklands London, E14 0JY  0870 060 1310  
OneNet Distribution Ltd 28 The Firs Syston, Leicester, LE72FT  08454135888  
Onestop ITS Ltd 32/6 Hardengreen Industial Estate Dalhousie Road Eskbank Midlothian, EH22 3NX  0131 510 0100  
Digital Phone Company Ltd - Onecom House, Fareham PO15 7FJ  01489 587200  
OneTel Telecommunications    
ONEX Solutions LTD Radford Business Centre Radford Cres, Billericay, CM12 0DP  02030111445  
ONI Plc 24 Crawley Green Road, Luton, LU2 0QX  01582 429 999  
Online Assistance Ltd White Hart Lane S/Stn White Hart Lane Tottenham London, N17 7RP  020 8889 9545  
Online Communications Ltd 19-21 Kents Hill Road, Benfleet Essex, SS7 5PN  01268 881 001 http://www.online-comm.co.uk/ 
On-Line Marketing & Sales Ltd 30 Greenlands Business Centre Studley Road Redditch Worcestershire, B98 7HD  0121 222 0500  
Online Support Computing 67a Boston Manor Road, Brentford, TW8 9JQ  020 8232 1190  
Online50 Ltd Unit 57, Sklylines Village Limeharbour London, E14 9TS  020 7536 7749  
Onsite Connect Ltd 40-44 Arundel Street, Portsmouth, PO1 1RT  0845 077 7071  
Ontech Solutions Ltd 4 Langford Court Ongar Road Kelvedon Hatch Essex, CM15 0LB  0871 221 2671  
ontel services Ltd Unit 6 Chess Business Park Moor Road Chesham, HP5 1SD  01494372211  
Ontraq Ltd 74 Duke Street, Chelmsford, CM1 1JP  01245 265100  
Onwave UK Ltd The Oasts Charmans Farm Beggars Lane Westerham, Kent, TN16 1QP  0845 413 5999 http://www.onwave.co.uk/ 
Onyx Business Systems Ltd 100 Hellesdon Park Industrial Estate Drayton High Road, Norwich, NR6 5DR  01603414142  
Onyx Group Ltd 9 Cheltenham Road, Portrack Interchange Business Park, Stockton on Tees TS18 2AD  01642 216200 https://onyx.net/ 
Oojie Ltd 11 Redstart Avenue, ,, Maidstone, ME15 6ZY  02070991390  
Oosha Ltd Suite 2 The Chubb Buildings Fryer Street Wolverhampton, WV1 1HT  01902 702233  
Opal IT Ltd Media Exchange One Coquet Street, Newcastle upon Tyne, NE1 2QB  0330 2233011  
Opal Telecom Ltd Stanford House, Garrett Field, Birchwood, Warrington WA3 7BH  0845 330 3456 http://www.talktalkbusiness.co.uk/ 
Opals (UK) Ltd 10 Tesla Court Innovation Way Lynchwood Peterborough, PE26FL  01733305451  
Open by Nature Ltd 112-114 High Street Rickmansworth, Hertfordshire, WD3 1AQ  0330 828 0725  
Open IP Ltd CPA House 49 Bolton Road Famworth Bolton, BL4 7JN  0845 868 7263  
Open Network Services Ltd Windsor House Clovelly Road Southbourne, Emsworth Hampshire, PO10 8PF  0845 225 3389  
Open Telecom Ltd Siddeley House, 50 Canbury Park Road, Kingston upon Thames, Surrey KT2 6LX  020 3388 8888 https://www.opentelecom.co.uk/ 
Open Telecom International Ltd    
OpenHosting   http://www.openhosting.co.uk/ 
OpenIP Services Ltd Office 617,6th Floor 120 Bark St, Bolton, BL1 2AX  03332413150  
OpenITC 44 Moorhead, Newcastle upon Tyne, NE5 3AP  0333 340 6736 http://www.openitc.co.uk/ 
Open-Link Technology Ltd Open-Link Technology Limited Archway House Padworth Near Reading, RG7 5HR  08700 500 771 http://www.openlinktechnology.co.uk/ 
Opex Hosting Ltd 462 London Road, Isleworth, Middx TW7 4ED  020 8326 8326 http://www.opexhosting.co.uk/ 
Opious Ltd The Old School House 9 Court Road, Cranfield, MK43 0DR  01234 819 819  
OptaNet Ltd Tower Point 44 North Road, Brighton, BN11YR  02034753611  
Optics Internet Ltd 4 Lockside Office Park Lockside Road Riversway Preston, PR2 2YB  03300232323  
Optimised IT Ltd 5 Foxcovert Lane Lower Peover Knutsford Cheshire, WA16 9QP  01565 722280  
Optimity Ltd    
Optimum Calls   http://www.optimumcalls.com/ 
optimus networks LTD 19 Vernon Close, Manchester, SK8 6AN  01618505065  
Optinet U.K. Ltd Monometer House Rectory Grove Leigh on Sea Essex, SS9 2HL  07825432757  
Option One Communications Ltd 4, Wilton Cottages Doctors Hill Ashley Box, SN13 8AT  01225744947  
Option Telecom Plc Elstree Business Centre Elstree Way Borehamwood Hertfordshire, WD6 1RX  0208 238 7873  
Optionbox Ltd Unit 5F Carr Mills Business Centre 919 Bradford Road Birstall, WF17 9JX  0333 200 4680  
Optix Software Ltd Poppleton House Rose Avenue, York, YO26 6RU  01904 606 606  
Opton Telecom Ltd 255-261 Hornlane Acton, London, W3 9EH  05603 669 724 http://www.optontelecom.co.uk/ 
Opus Network Services Ltd 1st Floor, 16, South Park, Sevenoaks, Kent TN13 1AN  01732 446644 http://www.opusnetworks.co.uk/ 
Opus Telecom Ltd The Hopkiln, Bury Court, Bentley, Farnham, Surrey GU10 5LZ  0345 303 1001 https://www.opusteam.co.uk/ 
Opus UK Ltd 10 Clock Court Campbell Way, Sheffield, S25 3QD  01909 518 811  
Opus Wifi Ltd The Old Vicarage Market Street, Castle Donington, DE74 2JB  01163440118  
Orange Business Holdings UK Ltd 217 Bath Road, Slough SL1 4AA  020 8321 4000 http://business.ee.co.uk/ 
Orange Peel Intellectual Ltd 3 Stone Pine Road, Bromham, Bedford MK43 8GF   
Orange Stripe Consultancy Ltd 39 Pure Offices Kembrey Park, Swindon, SN2 8BW  01793 700 536  
Orb Communications Ltd    
ORB Telemedia Ltd 38 Winton Crescent, Blantyre, South Lanarkshire G72 0QN  http://www.orb-telemedia.com/ 
Orbex Solutions Ltd Accurist House 44 Baker Street, London, W1U 7AL  0870 0411 411 http://www.orbex.co.uk/ 
Orbiss Ltd Lowen House Greenbottom Truro Cornwall, TR4 8QQ  01872 561 656  
Orbital Net Ltd County House, Station Approach, Bekesbourne, Canterbury CT4 5DT  01227 668900 https://www.orbital.net/ 
Orbital Networks Ltd 130 Cassini Drive, Swindon, SN25 2LW  0845 880 2634  
Orbitus Ltd Aizlewoods Mill Nursery Street, Sheffield, S3 8GG  0333 577 5650  
Orbix UK Ltd Old Stable Yard 123a Station Road, Hamption, TW12 2AL  0844 875 0108  
Orbtalk Ltd Unit 4, Hove Technology Centre, Hove BN3 7ES  033 0045 0111 https://www.orbtalk.co.uk/ 
Orca Telecom Ltd 2nd Floor 5 St John Street, Perth, PH1 5SP  0844 224 7373 http://www.orcatelecom.co.uk/ 
Orchard House Computers Ltd Wood Farm Barn, The Street, Flixton, NR35 1NZ  01986 891000  
Orchard ICT Ltd Barham House Wedhampton, Wiltshire, SN10 3PZ  01380 848 294  
Orchid Electronics Ltd Ridlington Park Farmhouse Holygate Road Ridlington Oakham, LE15 9AR  01572717888  
Orchid Telecom Ltd Holygate Road Ridlington, Oakham, LE15 9AR  01572717888 http://www.orchidtelecom.co.uk/ 
Orderly Telecoms Ltd 27 Tamar House, Kennington Lane, London SE11 4XA  0845 004 5413 http://www.orderlyq.com/ 
Organic Telecoms Ltd ONE Cathedral Square, Blackburn, BB1 1EX  0333 023 8080  
Oricom Ltd Unit 4 2 Cunninghame Road Kyle Business Park Irvine, KA12 8JJ  0844 4154888  
Origin Broadband Ltd 5 Thorne Road, Doncaster, DN1 2HJ  01302 235 060  
Orion Control Systems Ltd Treetops Farm Measham Road, Oakthorpe, DE12 7RG  01530 274455  
Ortiga Support Ltd Fairgate House 205 Kings Road, Birmingham, B11 2AA  0333 567 7700  
OryxAlign Ltd The Shepherds Building Rockley Road, London, W14 0DA  020 7608 7890  
Oscar Telecom Ltd Unit 12,Ashley House Ashley Road, London, N17, 9LZ  0208 885 1475  
Ostrich I.T Services Ltd Belvedere House Belvedere Road, Exmouth, EX8 1QN  08443577573  
Otra Dia Ltd 2nd Floor 145-157 St John Street, London, EC1V 4PY  0800 0336 444  
Our IT Department Ltd 128 - 132 Station Road, Chingford, London, E4 6AB  02037808896  
Outersight (UK) Ltd Unit 28, Mary Seacole Road The Millfields, Plymouth, PL1 3JY  01752220860  
Outfit Digital Ltd 2/1 348 Cumbernauld Road, Glasgow, G31 3NQ  0141 345 0543  
OutofHours 16 Durward, East Kilbride, G74 3PB  0141 433 0492  
Outsource Online LLP 3 Plasketts Close, Antrim, BT41 4LY  02894485112  
Outsourced IT Ltd 35 Tansey End, Biggleswade, sg188wl  01767600604  
Outsourced Telecom Ltd 4 Falcon Way Shire Park Welwyn Garden City Herts, AL7 1TW  0845 408 2283  
OutsourceOperations Ltd Eagle Tower Montpellier Drive, Cheltenham, GL50 1TA  01242 244 843  
Outsourcery PLC 1 The Avenue, Spinningfields, Manchester M3 3AP  0843 366 6060 http://www.outsourcery.co.uk/ 
Outsourcery Group Ltd 1 The Avenue Spinningfields, Manchester, M3 3AP  0843 366 6060  
Outsourcevoice Ltd Eagle Tower Montpellier Drive Cheltenham Gloucestershire, GL50 1TA  01242 244843 http://www.outsourcevoice.com/ 
Over The Web Ltd 22 Bower Road, Harrogate, HG1 5BW  01423789040  
Overline Network Consultants Unit 8, The Quoin Estate Marlborough Road, Lancing Business Park Lancing West Sussex, BN15 8AD  0870 891 9001  
OVH Ltd 3 Southwark Street, London SE1 1RQ  020 7357 6616 https://www.ovh.co.uk/ 
Owl Technical Services Ltd 22 Gibson Road Booker, High Wycombe, HP12 4QW  01494 627001  
OX365 Ltd 1 Oxford Road Garsington, Oxford, OX44 9DA  03304455365  
Oxford Macintosh Solutions Ltd Macintosh House 50 Acre End Street Eynsham Oxfordshire, OX29 4PD  01865 882 504  
Oxygen8 Communications UK Ltd 12th Floor, Lyndon House, 58-62 Hagley Road, Birmingham B16 8PE  0121 621 2000 http://www.oxygen8.com/ 
OZ Cloud Ltd 421 High Road, London, N12 0AP  0845 056 3450  
P&C Communications Ltd 10 Pilkington Road, Southport, PR8 6PD  01704542420  
P2C Communications Ltd Suite 16, The Granary, 1 Waverley Lane, Farnham, GU98BB  01252823161 http://www.p2c-communications.com/ 
P2p It Ltd Gemini House Hargreaves Road, Swindon, SN25 5AZ  01793 680088  
P3 Computer Services Ltd 2 HEALEY WOOD ROAD BURNLEY LANCASHIRE, BB11 2HJ  01282 424041  
Pace Telecom Ltd 33 High Street, Wrexham LL13 8HY  http://www.pacetelecom.co.uk/ 
Pacit Technical Services Ltd 57 Dumas Drive Whiteley, Fareham, PO15 7LU  01489668866  
Packet Media Ltd Enterprise House Trentham Business Quarter Trentham Lakes South Stoke on Trent, ST4 8GB  01782 463838  
Packnet Ltd Greenheys Business Centre, Pencroft Way, Manchester M15 6JJ  0845 004 4994 http://www.pack-net.co.uk/ 
Page Computer Company Ltd 8 Clayford Dormansland Lingfield Surrey, RH7 6PR  01342 835603  
PageOne Communications Ltd 2th Floor GW1, Great West House, Great West Road Brentford TW8 9DF  0333 200 5033 http://www.pageone.co.uk/ 
Pageworks Ltd 15 Gosditch Street, Cirencester, GL7 2AG  01902620500  
PALMSECURE 152 Ladywood Road, Kirk Hallam, DE7 4NS  01158 24 00 11  
Pan Technology Ltd St Martin’s Cottage Western Road, Crowborough, TN6 3EH  01892 667 022  
Pan Telecom Communicate House Allenby Business Village Crofton Road Lincoln, LN3 4NL  0870 757 7001  
Panacea Box Ltd 75 George Street, Manchester, OL11 2PU  07011773828  
Panama Communications Ltd C/O Neal Frain Accountants 53 York Street, Heywood, OL10 4NR  0845 504 8854  
Panda IT Solutions Ltd 29 Mill Hill Churchill House, Pontefract, WF8 4HY  08450950025  
Panoptic Technology Ltd 18 Devonshire Row 1st Floor, London, EC2M 4RH  02036519270  
Panorama Antennas   http://www.panorama-antennas.com/ 
Pantec Solutions LTD 14 Strawberry Mead Fair Oak Eastleigh Hampshire, SO50 8RG  08446863311  
Panztel (UK) Ltd Raglan House Llantarnam Business Park, Cwmbran, NP44 3AB  0845 453 4150  
Paradox IT Ltd Bluebell Lodge 6 Millbrook Close Shaw Oldham, OL2 8QA  0845 875 0005  
Paralogic Networks Ltd Unit 1d Haddenham Business Park Pegasus Way, Haddenham, HP17 8LJ  01844 293333  
PARAMOUNT ENTERPRISES 38 MANDELA CLOSE, LONDON, NW10 8BG  07851961819  
Parkeray Ltd Bridge House 4 Borough High Street, London, SE1 9QQ  0207 378 4567  
Part Two Ltd M.I.O.C Styal Road Manchester, M22 5WB  0845 673 0025  
P-A-S Intertest Ltd Swan Court Forder Way, Peterborough,, PE7 8GX  01733 302903  
PAS Partnership Ltd Unit 11 LDTC Bancroft Rd Burnley Lancashire, BB10 2TP  01282 872361  
Pasporte Ltd 56 London Road Bagshot, Surrey, GU19 5HL  0800 054 6060  
Passage Telecommunications Ltd 16 Sewell Close, Chafford Hundred. RM16 6BT, Grays, RM16 6BT  07459195820  
Passport-IT The Bridge One Graypen Way Queens Road Immingham, DN40 1QN  01469 730730  
Paston Chase Ltd Henderson Business Centre Ivy Road, Norwich, NR5 8BF  01603 340010  
Patoy Ltd 96 Vallander Road, London SE6 2QE  020 7173 1700  
Patrick Seyler No 2 Apple Tree Lane Carlyon Bay,, PL25 3QB  07775697241  
Paul Finney 11 Cowdray Close, Southampton, SO16 8EB  08009101555  
Paul Gratton Red Hill House Hope Street, Chester, CH4 9BU  01244 457870  
Paul Hooker 24 Cherry Orchard Holt Heath, Worcester, WR6 6ND  01905 621388  
Paul OBrien Ltd 78 Hospital Street Hantwich, Cheshire, CW5 5RP  03333 444243  
Pbl Holding Ltd 71- 75 Shelton Street Covent Garden,, London, WC2H9JQ  02039055475  
pbuk consultants Ltd 37 regina road, southall, ub25pl  07956189891  
PBX Hosting 5 The Cobalt Centre Siskin Parkway East, Coventry, CV3 4PE  02070999930  
PC Call LTD 147 Milton Road, Cambridge, CB4 1XE  01223 755 666  
PC Comms Ltd Unit 6 Wills Business Park Salmon Parade, Bridgwater, TA6 5JT  01278 458558  
PC Docs Tel Ltd Solar House 282 Chase Road, London, N14 6HA  0333 430 0405  
PC Doctors Ltd Watling Office Grange Watling Street Hinckley Burbage, LE10 3AR  0844 3320350  
PC Excelled Ltd 58 Bellman Avenue,, Gravesend, DA12 1RE  07710181171  
PC Flying Doctors Ltd Lewis House, Chesterford Court Great Chesterford Saffron Walden Essex, CB10 1PF  01799 531000  
PC Jen The Fleece 24 Keighley Rd, Skipton, BD23 2NS  01756668213  
PC Paramedic Solutions Unit 10 Norton Canes Business Park, Norton Canes, WS11 9SS  08000199934  
PC Southwest Ltd Queensgate House 38 Queen Street Exeter Devon, EX4 3SR  01392 361 999  
PC Stop 7 Kingsland, Arleston, telford, tf1 2lb  01952 246446  
Black & Yellow Ltd PO Box 6568, Newark NG23 7ER  01522 704777  
PC Supplies Ltd Unit 54 Trinity Enterprise Centre Ironworks Rooad, Barrow in Furness, LA14 2PN  01229877577  
PC Support Company Kingsferry House Burton Stather, North Lincolnshire, DN15 9DJ  01724 701 621  
PC Tech Hub 39 Second Avenue, Farlington, Portsmouth, PO6 1JR  03301221870  
Pc1 Ltd Castle House Kingsway Swansea West Business Park Swansea, SA5 4DL  01792 580540  
PCB Group Ltd Ryburn Villas 2 Jerry Lane Sowerby Bridge West Yorks, HX6 3BH  01422 833 999  
Pccure Services 762 R Kemp House 152 City Road, London, EC1V 2NX  0161 872 5297  
PCCW Global Exchequer Court, 33 St. Mary Axe, London EC3A 8AA  020 7030 3770 http://www.pccwglobal.com/ 
PCGuys 1 Haggerston Road, Borehamwood, WD6 4BU  07572013942  
PCI Services Ltd Evolve Business Centre Rainton Bridge Business Park, Sunderland, DH4 5QY  08451433000  
PCI Xpress Ltd 124 Market St. Hoylake wirral Merseyside, CH47 3BH  0151 632 5970  
PCI-PAL (U.K.) Ltd 1 Cornhill, London EC3V 3ND  https://www.pcipal.com/ 
pckwikfix Ltd 8-10 Glasgow Road Kirkintilloch, Glasgow, G66 1SH  01412800494  
PCL Technology Ltd 3 Hambro Parade Rayleigh, Essex, SS6 9PU  0844 251 0802  
PCN Computer Services 29a Kingston Road, Taunton, TA2 7SA  01823 271342  
PC-Q   http://www.pc-q.co.uk/ 
PCQ Solutions Ltd Cambrian House Cambrian Place, Llanidloes, SY18 6BX  01686 411000  
PCS Business Systems ltd 2 Northfield Point Cunliffe Drive, Kettering, NN16 9QJ  08453 735010  
PCSG (Merseyside) Ltd Liverpool Business Centre 23 Goodlass Road, Liverpool, L24 9HJ  0330 088 6116  
PDR Communications Ltd 104 London Rd Newcaste under Lyme, Staffordshire, ST5 1LZ  01782 711141  
Peace Telecom Suite 2 1st Floor, Oak Court, Wynne Avenue, Clifton Swinton, Manchester M27 8FF   
Peach Communications Ltd 18 Blacksmith Close, Oakdale, Blackwood, Gwent NP12 0BG  01495 237868 http://www.peachcomms.co.uk/ 
Peach Technologies Ltd St Andrews House, 4400 Parkway, Whiteley, Hants PO15 7FJ  0800 998 2002 http://www.peach-telecom.co.uk/ 
Peak Support Services Ltd Sams Place 53 Dimple Road, Matlock, DE4 3JX  01629 582128  
Peak Telecom UK Ltd 57 Liddon Road Stamford House, Bromley, BR1 2SR  02082907230  
Peakweb Ltd 15 Dale Close Fritchley Belper Derbyshire, DE56 2HZ  01773 856872  
Pearl Communications Ltd 36-38 Berry Street, Wolverhampton, WV1 1HA  01902 426291  
PECC Consultants Ltd Unit 102 Batley Enterprise Centre 513 Bradford Road Batley West Yorkshire, WF17 8LL  01924 427 700  
Peer Point Internet Ltd First Floor 8 Denmark Street, London, WC2H 8LS  020 3656 1234  
Pegasus Communications (uk) Ltd 206 White Lane, Sheffield, S12 3GL  0870 4441408  
Pelsiscareers Ltd Unit 2 Etheridge Avenue Milton Keynes Bucks, MK10 0BP  0845 1800 936  
Pembs Media IT Services & Broadband 27 St Lawrence Avenue, Hakin Milford Haven, SA73 3NB  01646 400510  
Pen Telecom Ltd 404 Northpoint Centennial Way Elstree Herts, WD6 3TN  020 8827 0723  
Peninsula Evolvit Ltd Castlemead, Bristol, BS1 3AG  08458804554  
Pennine Telecom Ltd Pennine House Salford Street Bury Lancashire, BL9 6YA  0161 763 3333 http://www.penninetelecom.com/ 
Pennycom Ltd 253 Alcester Rd, Birmingham, B14 6DT  01217187000  
Pensar Systems Ltd 71 Gloucester Place, London, W1U 8JW  0845 402 6797  
Penstone Communications Ltd Suite 116 Trident Court, Chessington, KT9 1BD  0800 074 4414  
Pentagon Systems Darley Court 1 Alfreton Road, Derby, DE21 4AA  08451 662358  
Pentangle Internet Ltd 1 Lauras Close Great Staughton, Cambridgeshire, PE19 5DP  08700 339905  
Perdial Ltd Perdial Limited Mint House 6 Stanley Park Road Wallington, Surrey, SM6 0HA  0845 3703 111  
Perfect Image Ltd Equinox House 3.2 Silver Fox Way Cobalt Business Park North Tyneside, NE27 0QJ  0191 238 0111  
Performance Networks Ltd The Old Rectory Main Street, Glenfield, LE3 8DG  0845 094 4432  
Performance Telecom Ltd Unit 63, 17 Holywell Hill, St. Albans AL1 1DT  0845 456 1500 http://www.performancetelecom.co.uk/ 
Pericom PLC 16 Alston Drive Bradwell Abeey, Milton Keynes, MK13 9HA  01908 224680  
Personal Computer Clinic Ltd Grove Farmhouse Dorrington, Shrewsbury, SY5 7JD  01743718388  
Personal Group Mobile Ltd 3b Brunel Close Drayton Fields Industrial Estate Daventry Northants, NN11 8RB  01327872300  
TRU Communications Ltd Sentinel House Albert Street, Eccles M30 0NJ  0844 241 2595  
Personic Computers Ltd 22-24 Winsterstoke Road Ashton, Bristol, BS3 2NQ  0117 966 6341  
Perspective Communications Ltd 218 Leigh Road, Eastleigh, SO53 3AY  02380 170270  
Pescado Hosted Ltd Poplar House Park West, Chester, CH1 4RN  033 000 22 000  
Peter King Woodford Old Stafford Road, Wolverhampton, WV10 7PL  07595904866  
Petrol Communications Ltd 18 Haythrop Close Downhead Park, Milton Keynes, MK11 9DD  020 3130 1790  
PGL IT Ltd Unit A, ARC Progress Beckerings Park Lidlington Beds, MK43 0RD  08445 449330  
Phase 5 Communications Ltd BBIC, Innovation Way, Barnsley, S75 1JL  01226285600  
PHD in Communications Ltd Venture West Greenham Business Park, Thatcham, RG19 6HN  01635 573208  
PHE Solutions Ltd One Way House Station Road Lenwade Norwich, NR9 5LY  01603 555100  
Pheonix Corporate Communications Ltd    
Phi Network Systems 55 Bally Martin Road Ballyclare, Co Antrim, BT39 0BS  028 93 155 600  
Philp Kalax Ltd 10 York Place, Edinburgh, EH1 3EP  0345 095 2529  
Phipps Communications Ltd Holmecote Yard Health Road, Soberton, PO17 6LA  01329 830124  
Phoenix Backup Ltd Heritage House 79-80 High Street Gravesend Kent, DA11 0BH  0845 467 1236  
Phoenix Broadband Ltd Suite 2b 1 Pitt Terrace, Stirling, FK8 2EZ  01786 230 830  
Phoenix Communication Services Ltd The Offices, Carillon Longdon Road Upton upon Severn Worcs, WR8 0QL  01684 892 911  
Phoenix IT Services Ltd Technology House Hunsbury Hill Avenue, Northampton, NN4 8QS  0844 863 1632  
Phoenix Link Albion Chambers 1 Albion Road Birchington Kent, CT7 9DN  01843 844 180 http://www.phoenixlink.co.uk/ 
Phoenix Link UK Ltd B4 Hillborough Business Park Sweechbridge Road, Herne Bay, CT6 6TE  0844 257 1710 http://www.telephoneskent.com/ 
Phoenix Managed Networks Ltd Phoenix House Maple Road, Tankersley, S75 3DL  0845 006 0066  
Phoenix Solutions SL 70-72 The Havens, Ipswich, IP3 8BF  01473858950  
Phoenix SSI Ltd Dawson House 128-130 Carshalton Road Sutton Surrey, SM1 4TW  08447799776  
Phonate Telecom Olympic House, 28-42 Clements Road, Ilford IG1 1BA  020 3153 0000 http://www.phonate.co.uk/ 
Phone Buddy Ltd 2nd Floor Saxon House, Heritage Gate, Derby DE1 1NL  0870 787 5678  
Phone Cheap   http://www.finarea.ch/ 
The Phone Co-Op Ltd 5 The Millhouse, Elmsfield Business Centre, Worcester Road, Chipping Norton, Oxon OX7 5XL  0845 458 9000 http://www.thephone.coop/ 
Phone Co-Op Caller Plus   http://www.thephone.coop/ 
Phone Co-Op Caller Plus and Home user   http://www.thephone.coop/ 
Phone Co-Op Numbering Ltd 5 The Millhouse, Elmsfield Business Centre, Worcester Road, Chipping Norton, Oxon OX7 5XL  0845 458 9000 http://www.thephone.coop/ 
Phone Co-Op Package   http://www.thephone.coop/ 
Phone Direct    
Phonelink Installations Ltd 94 Sterry Road Gowerton, Swansea, SA43BW  01792 875999  
phoneplus network ltd 170 PLASHET GROVE, LONDON, E6 1AB  02039071700  
Phones 4 Business Ltd Suite 5, Cleveland Court 3-5 Cleveland Road Bournemounth Dorset, BH1 4QB  01202 705 030 http://www.phones4business.com/ 
Phones 4 Less   http://www.phones4less.co.uk/ 
Phones42 Ltd 3rd Floor) 207 Regent Street, London, W1B 3HH  01604882066  
Phonestar Ltd 10 Bridge Road, Christchurch, Dorset BH23 1EF  0845 366 6444 http://www.phonestar.co.uk/ 
Phonexa LTD 23 Hinton Rd, Bournemouth, BH1 2EF  0-808-189-3371  
Phonio UK Ltd 170 Edmund Street,, Birmingham, B3 2HB  +49 40 2288 2222  
PiaTel Communications Ltd 302 Regent Street, London, W1B 3HH  020 7979 1700  
Pier IT Ltd 6 Grange Paddock Mark Highbridge Somerset, TA9 4RW  01278 641 497  
Piksel Ltd York Science Park 1 Innovation Close, York, YO10 5ZD  01904 271 000  
Pinacl Solutions Ltd Pinacl House Carlton Court St Asaph Business Park ST Asaph, LL17 0JG  01745 535300  
Pine Media Business Ltd 19 Woodhouse Gardens Ruddington, Nottingham, NG11 6BF  01133031031  
Pineapple Communications Ltd (dissolved May 2013)   
Pinehill Associates Ltd Minshull House 67 Wellington Road North, Stockport, SK4 2LP  01612992411  
Pink Connect Ltd Connect House Mill Street Shipston on Stour Warwickshire, CV36 4AW  0345 450 9393 http://www.pinkconnect.com/ 
Pink Connect Ltd Connect House, Mill St, Shipston on Stour, Warcs CV36 4AW  0345 450 9393 http://www.pinkconnect.com/ 
Pinnaca Retail Solutions Ltd Sterling House 2nd Floor S4 Langstone Road Essex, IG10 3TS  02037474366  
Pinnacle Technologies Ltd First Floor Suite 2D Blue Pit Mill Queensway Rochdale, OL11 2YW  01706 350 370  
Pinnacle Telecoms Wales    
Pinnacom Ltd The Coach House Mallory Race Circuit Kirkby Mallory Leicester, LE9 7QE  02071155555  
Pioneer Business Systems   http://www.pioneercomms.co.uk/ 
Pioneer Global Services Ltd 2 Gayton Road, Harrow Middlesex, HA1 2XU  020 8819 1946  
Pioneer Information Solutions Ltd 194 Honeypot Lane, Stanmore, HA7 1EE  02082049628  
Pioneer It Support Ltd 3-5 Balfour Road, Ilford, IG1 4HP  02033849347  
Pioneer Solutions (UK) Ltd Roding Lane South, Ilford, IG8 8EY  02033849347  
Piran Technologies ltd Unit 1, Jon Davey Drive Treleigh industrial Estate Redruth Cornwall, TR16 4AX  01209 708 608  
Piron Networks Ltd 30 New Road, Brighton, BN1 1BN  03300021200  
Pisys.Net Ltd 2 Princess Way, Swansea, SA1 3LW  01792464748  
Pitch Partners Solutions LTD 30A Swanley Centre London Road, Swanley, BR8 7TL  02033971515  
Pivotal Networks Ltd 1 Berrymoor Court Northumberland Business Park, Cramlington, NE23 7RZ  01912503120  
Pixel Hosts Ltd 1 Manthorpe Way,, Newark, NG24 3PP  0844 884 2698  
PJ Communications Ltd 259 Virgo Road, Andover, SP10 1JX  01483 361 122  
Plain Sailing Communications Ltd PO Box 335 Sevenoaks, KENT, TN13 3ZX  01732 743 746  
Plan Communications Ltd Capital House Circular Road Douglas Isle of Man, IM1 1AG  01624 654 067  
PLAN:IT Business Systems The Radcliffe Centre 41a Blackburn Street Radcliffe Manchester, M26 1NR  0161 723 0999  
Planet Convergence Ltd 500 Chiswick High Road, London, W4 5RG  020 8994 4454  
Planet Numbers Ltd Suite 3, 1st Floor, Richmond House, Richmond Hill, Bournemouth BH2 6EZ  0345 077 7777 https://planet-numbers.co.uk/ 
Planet Talk PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY  020 7195 2875 http://www.planet-talk.co.uk/ 
Planet Talk Account PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY  020 7195 2875 http://www.planet-talk.co.uk/ 
Planet Talk Instant PO Box 1122, Lindred Road Business Park, Nelson, Lancs BB9 4FY  020 7195 2875 http://www.planet-talk.co.uk/ 
Planet Telecommunications Solutions Ltd    
Platinum Computer Solutions Ltd 10 Abbey Court Fraser Road Priory Business Park Bedford, MK44 3WH  01234 832 520  
Platinum Telecom 145-157 St John Street, LONDON, EC1V 4PY  0870 167 2114  
Plaza Telecom    
Plexio UK Ltd Suite 2 Resource Centre Bridge Street Garstang Preston, PR3 1YB  01995 912 020  
PLH Consultants Ltd Suite 4 Crown Business Centre Old Ipswich Road Ardleigh Colchester, CO7 7QR  01206233465  
Plugd Ltd 3 Gedney Close Shirley, Solihull, B90 1LJ  07968 726 379  
Plum Communications Ltd Bright Street, Oldham, OL8 4AB  0870 750 4730 http://www.plumcom.co.uk/ 
Plus Networks Ltd 11 Heath Croft Road, Sutton Coldfield, B75 6RA  01212710755  
Plus Save Ltd Flat D, 291 Waldergrave Road, Twickenham Middlesex, TW1 4SU  020 7993 2720  
Plus Technologies Ltd 1st Floor Helen and Douglas House Broadfields Court Broadfields Retail Park AYLESBURY, HP19 8BU  01296 658947  
Plus Telecom Ltd 17-18 Margaret Street, London W1W 8RP  0808 148 4848 http://www.plustelecom.com/ 
PlusNet Plc The Balance, 2 Pinfold Street, Sheffield S1 2GU  0345 140 0200 https://www.plus.net/ 
PlusNet Broadband Phone   https://www.plus.net/ 
PlusNet Home Phone   https://www.plus.net/ 
Plustel Ltd Innovation House Innovation Way, Sandwich, CT13 9FF  08008495496  
PMC Electrics Ltd 8th Floor St James House, Salford, M6 5FW  0161 737 9898  
PMGC Technology Group Ltd Sutherland House 5-6 Argyll Street, London, W1F 7TE  0207 2879928  
PMS Networks Ltd 41 Vittoria Street, Birmingham, B1 3ND  08445732611  
Pneuma Global Networks Brookmans Park Teleport Gt North Road Brookmans Park Herts, AL9 6NE  01707 648316  
PNP Consultants (UK) Ltd 210 Warsash Road Warsash, Southampton, SO31 9JF  01489571238  
PNS Affinity Ltd Unit 2 Apsley Business Centre,, 233 London Road, Hemel Hempstead, HP3 9SE  08003047065  
Podium Infrastructure Design & Consultancy Ltd 21 Spencer Close Earls Barton, Northamptonshire, NN6 0RD  07860524908  
Polaris Telecommunications Ltd St John's Innovation Centre Cowley Road, Cambridge, CB4 0WS  08707 651654  
PolkaSpots Ltd 4th Floor 62 Britton Street, London, EC1M 5UY  020 7183 1471  
Pond Group Ltd 17 Widmore Road, Bromley, BR1 1RL  020 8466 6043  
Poplar Ltd    
Poplar Aegis Ltd Suite 4 Gymphlex Offices, Boston Road, Horncastle, LN9 6HU  0333 011 0512  
Poppy's Communications Ltd The Old Parlour Purn House Farm Bleadon Weston Super Mare, BS24 0QE  01934 814 984  
Port 5060 Ltd Unit 25, President Buildings, Saville Street East, Sheffield S4 7UQ  0330 088 1101 https://www.port5060.net/ 
Portal Voice & Data Ltd Unit 2a, Saphire Estate Roundtree Way Norwich Norfolk, NR7 8SQ  01603 785300  
Porthlas Ltd 24 Bridge Street, Newport, NP20 4SF  02921111202  
Portsmouth Business System Ltd 14 The Tanneries Brockhampton Lane Havant Hants, PO9 1JB  02392 454 694  
Pos-Aid Ltd 4 The Square Wellow, Bath, BA2 8QE  0330 223 2237  
Posicom Ltd 15 Peregrine Road Hucknall, Nottingham, NG15 8HF  07913343103  
Posilan Ltd Empress Business Centre 380 Chester Road, Manchester, M16 9EA  0161 660 7471  
Positive Computing Berkshire House Kings Road, Reading, RG1 4HP  0118 907 4000  
Positive ICT Ltd Po Box 3866, Wolverhampton West Midlands, WV6 8ZT  0844 884 1000  
Positive IT Communications West Wing, Bynea House, Bynea, Llanelli, Carmarthenshire SA14 9SU.  0871 6440244 http://www.positiveit.com/ 
Posix Ltd 493 Hornsey Road, London, N19 3QL  07974565531  
Post Office Ltd Providence Row, Durham DH1 1RR  0845 600 3210 http://www.postoffice.co.uk/ 
Post Office Phonecard   http://www.postoffice.co.uk/ 
Poundbury Systems Ltd Poundbury Systems Ltd Emeria House 71-73 Middlemarsh Street Poundbury, Dorchester, DT1 3FD  0871 208 0034 http://www.poundbury.com/ 
Power Internet 249 Midsummer Boulevard Central Milton Keynes, Buckinghamshire, MK9 1EA  01908 605 188  
Powercit.co.uk Ltd 82a Singer Way Woburn Rd Ind Est, Kempston, MK42 7PU  01234 905102  
Powercuts UK Ltd 181-183 Summer Road Erdington, Birmingham, B23 6DX  0121 647 6023  
Powerdial Services Ltd East Batterlaw Farm, Hawthorn County Durham, SR7 8RP  01915275000  
Powered by Vision Ltd Spindrift Timberlea Close Ashington, Pulborough, RH20 3LD  01903868030  
Powernet Management Ltd First Floor Offices 3 All Hallows Road, Blackpool, FY2 0AS  0845 643 9013  
PPSnet Ltd Crown House Home Gardens, Dartford, DA1 1DZ  08445614636  
Pragma Networks Ltd Swan Court Waterhouse Street Hemal Hempstead Herts, HP1 1DS  0845 873 7950  
Praten Telecom Ltd Suite 43 26 Kings Hill, Kings Hill Avenue Kings Hill Business Park West Malling, Kent, ME19 4AE  01732 424156  
PreciousIT Ltd Ethos House New Road Sandy Beds, SG19 1NX  01767 221100  
Precise IT Solutions 27 Tile Street, Bradford, BD8 8NX  01274 288072  
Precise Telecom Ltd 331 St Margaret's Road, Twickenham, TW1 1PW  020 8744 2140  
Precium Ltd 1 Farnham Road, Guildford Surrey, GU2 4RG  01483 549 040  
Preferred One Stop Technologies Ltd Priority House Grove Park Court, Harrogate, HG1 4DP  01423 534 560  
Premier 1983 Ltd Premier Business Park Dencora Way, Luton, LU3 3HP  +44 1582 572727  
Premier Choice Telecom Ltd Premier House 102a Station Road Sidcup Kent, DA15 7DE  020 8300 9495 http://www.premierchoicetelecom.com/ 
Premier Computer Support Ltd 10-16 Tiller Road, London, E14 8PX  020 7345 5139  
Premier Links Ltd Unit 5D Folgate Road Lyngate Road Industrial Estate, North Walsham, NR28 0AJ  01692 403036  
Premier Services NE Ltd 31 Bromarsh Court St Peters Riverside, Sunderland, SR60RN  01915946999  
Premier System Solutions Ltd 229 Aylestone Lane Wigson, Leicester, LE18 1BE  01162 571456  
Premier Talk Ltd EBC House Townsend Lane Kingsbury London, NW9 8LL  020 7392 8864 http://www.premiertalk.co.uk/ 
Onecom Ltd Gleneagles House 4400 Parkway, Solent Business Park Whiteley Fareham, Hampshire PO15 7FJ  01489 587200  
Premier Voice & Data Ltd    
Premier Voicemail Ltd PO Box 3, Borehamwood, Herts WD6 4HD  020 8236 0236 http://www.premiervoicemail.co.uk/ 
Premiere Communications Inc 3399 Peachtree Road NE, The Lenox Building, Suite 400, Atlanta, Georgia 30326, USA   
PremierEdge Solutions Ltd Unit 4E Winford Business Park Winford Bristol, BS40 8HJ  01275400300  
Premium Galaxy Ltd 17 Old Church Road, Coventry CV6 7BZ  0845 589 5895 http://www.premiumgalaxy.co.uk/ 
Premium O Ltd Liquidation February 2016   
Premium Routing GmbH Steinackerstrasse 2, CH-8302 Kloten, Switzerland  http://premium-routing.com/ 
Premtext Ltd Sellack House, Sellack, Roth on Wye, Herefordshire, HR9 6QP  0333 3040800  
Press Start Ltd Tudor Lodge - Fiveways Barton Mills, Bury St Edmunds, IP28 6AE  01638 603204  
Press Telecom Ltd 3-5 Elizabeth Street, Burnley, BB11 2BQ  01282 842163  
Prestige IT Support Ltd Unit 23 Pitcliffe Way Industrial Estate Upper Castle Street Bradford West Yorkshire, BD5 7SG  01274 955 509  
Prestige Logic Ltd 1st Floor Franklin House Maple Road Bramhall Stockport, SK7 2DJ  08455828080  
Price Engines Ltd Pioneer House Derby Road Stenson Derby, DE73 7HL  01283707050  
Primary PC Solutions Unit 4, Trenethick business Park Water-Ma-Trout, Helston, TR130LW  01326562310  
Prime & Modern Ltd Kingsway House 103 Kingsway, London, WC2B 6QX  020 7443 5618  
Prime Connect Millennium Business Centre Humber Road, London, NW2 6DW  02071010990  
Primenet Southwest Ltd 24 the orchard Locking North somerset Weston super mare, bs248du  07971530594  
Primus Telecommunications Ltd NIOC House, 4 Victoria Street, London SW1H 0GT  020 7669 6000 http://www.fuelbroadband.co.uk 
Principal Communications Ltd 30 Eldon Business Park Eldon Road Attenborough Nottingham, NG9 6DZ  01159 221110  
Principal I Ltd Principal House Parsonage Business Park, Horsham, RH12 4AL  0333 240 8130  
Priority IT Solutions Ltd 56 Stallard ST, Trowbridge, BA148HH  +441225636000  
Priority Managed Services Ltd 20-22 Wenlock Road, London, N1 7GU  01217965622  
Priority One IT 58 Southwark Bridge Road, London, SE1 0AS  020 3151 6000  
Prism Business Developments Ltd 5 John Bradshaw Court Congleton Cheshire, CW12 1LB  0845 121 7770  
Proactive Network Solutions Ltd Suite B, Floor 8 St James’s House Pendleton Way Salford, M6 5FW  08432909102  
Proactive Networking Ltd ProNet House 36 Mannock Drive Loughton Essex, IG10 2JB  0845 612 5785  
Proactive Networks Ltd Suite 16, Floor 6 St James House Penedelton Way,, M6 5FW  0870 224 2890  
Probado Ltd The Old Surgery Manchester Road Marsden Huddersfield, HD7 6EL  01484 905 103  
Probrand Ltd 45-55 Camden Street, Birmingham, B1 3BP  0121 605 1000  
Procom Stowick Evesham Road, Broadway, WR12 7HU  01386 830858  
Procom Global Ltd Maxim 1 2 parklands Way, Eurocentral, ML1 4WR  07917356092  
Pro-Copy Ltd Parc-Ty-Glas, Llainshen Cardiff, CF14 5DU  02920689999  
Prodec Networks Ltd Chancery Gate Business Centre Ruscombe Park, Twyford, RG10 9LT  0118 960 2500  
Prodigy Internet Ltd PO Box 1636, Sheffield S10 5XG   
Prodigy PC Everley Farm Iwerne Minster, Blandford, DT11 8PT  01258442888  
ProExe Ltd 37 Rolle Street, Exmouth, EX8 2SN  01395224141  
Professional IT Systems Ltd Dunn and Mills Business Park Red Doles Lane, Huddersfield, HD2 1YE  01132385525  
Professional Link Ltd 8 Calthorpe Road Edgbaston, Birmingham, B15 1QT  0121 456 5115  
Professional Software Design Ltd 2-3 Fairmile Parade Fairmile Road Christchurch Dorset, BH23 2LP  0845 8621061  
Professional Technical Consulting Ltd Unit 3F Bolingbroke Road Fairfield Industrial Estate, Louth, LN11 0WA  01507 609643