Operator Address List (full)
Version 167 - 30th April 2012
Database Updated: 17th May 2012
Not for commercial publication or use.
| Company Name | Address | Telephone | Fax | External Link |
| (aq) Ltd | 13-15 Hunslet Road, Leeds LS10 1JQ | 0113 320 3040 | 0113 320 3041 | http://aql.com/ |
| 001 International Telecom | ||||
| 01 Telecom Ltd | 64 St James Street, Brighton BN2 1PJ | 020 7186 0101 | http://www.01telecom.co.uk/ | |
| 05pence | http://www.callax.com/ | |||
| 08 Numbers Ltd | 23-25 Fowler Road, Ilford, Essex IG6 3UT | 0800 848 8000 | http://www.08-numbers.co.uk/ | |
| 08 UK Ltd | Strathdene House 32 Broomfield Road Heaton Moor Stockport SK4 4ND | 08444 939 444 | ||
| 0844 Calls | http://www.0844calls.co.uk/ | |||
| 08Direct Ltd | Mazhar House, 48 Bradford Road, Stanningley, Leeds LS28 6DF | 0844 504 4000 | 0844 504 4001 | 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 Red Cube Ltd | Suite 55 33 Queen Street Wolverhampton West Midlands WV1 3AP | 01902 583 990 | ||
| 1 Telecom Ltd | ||||
| 10 Telecom Ltd | ||||
| 100 Percent IT Ltd | Wessex House Oxford Road Newbury Berkshire RG14 1PA | 01635 814440 | ||
| 10ACT | ||||
| 118 Ltd | Conduit House, East Point Business Park, Dublin 3, Ireland | |||
| 118 777 | http://www.switchingon.com/ | |||
| 118 Group Ltd | 87 Waterhouse Business Centre Cromar Way Chelmsford Essex CM1 2QE | 01245 392172 | ||
| 121 Comms Ltd | Newham Farm 5 Wales Street Rothwell Northants NN14 6JL | 08452 720 121 | ||
| 123 Telecom Ltd | 305-308 Vale Enterprise Park, Hayes Road, Sully, Cardiff CF64 5SY | 0870 871 0123 | 0870 871 0124 | http://www.123telecom.co.uk/ |
| 123Call | http://www.tttelecom.nl/ | |||
| 123Telecom Ltd | 305 Vale Enterprise Centre Hayes Road, Sully Vale of Glamorgan, CF64 5SY | 0870 871 0123 | http://www.123telecom.co.uk/ | |
| 123vISP.co.uk | http://www.123vISP.co.uk/ | |||
| 127 Solutions Ltd | Chatham House Dee Hills Park, Chester CH3 5AR | 0845 8621 127 | ||
| 1301 | http://www.call1301.co.uk/ | |||
| 18185.co.uk | http://www.18185.co.uk/ | |||
| 186k Ltd | The Spectrum, Queens Road, Reading RG1 4BQ | 0118 906 4000 | http://www.186k.co.uk/ | |
| 1899.com | http://www.1899.com/ | |||
| 1RT Group | Box No 53, 27 Colmore Row, Birmingham B3 2EW | 0800 310 1010 | 0800 310 1011 | http://www.1rt.co.uk/ |
| 1st Advance Ltd | ||||
| 1st Call Communications Ltd | Station House 6a Station Road Eckington Sheffield South Yorkshire S21 4FX | 01246 439 800 | 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 | ||
| 1st Contact Telecom Ltd | Clydesdale Bank House, 33 Regent Street, London SW1 Y 4ZT | 020 7577 3636 | ||
| 2 Circles Communications | http://www.2circles.com/ | |||
| 2 Way Radio Shop | http://www.2wayradioshop.co.uk/ | |||
| 200connect Ltd | 45 Weale Road, London E4 6JL | 020 3411 5345 | ||
| 21 Next Gen Ltd | Unit 4 1 Oakwood Road Sparkhill Birmingham B11 4EX | 0871 971 0056 | ||
| 21 Plus Telecom Ltd | Evans Business Centre Manchester Road, Bolton BL3 2PY | 01204 368 636 | ||
| 21C Telecom | http://www.21ctelecom.co.uk/ | |||
| 21C Voice & Data | http://www.21ctelecom.co.uk/ | |||
| 21ip Ltd | 8 North Hills Brill Aylesbury Bucks HP18 9TH | 01844-239750 | ||
| 21st Century Telecom.com Ltd | 23 Gaolgate Street, Stafford ST16 2NT | 0870 777 2121 | ||
| 24 by 7 Communications Ltd | ||||
| 24 Seven | http://www.24seven.co.uk/ | |||
| 24 Seven Communications Ltd | Telecoms House, 4 Sheepscar Court, Leeds LS7 2BB | 0800 024 7247 | 0800 024 7248 | http://www.24seven.co.uk/ |
| 24Talk | Unit 25, City Business Centre 6 Brighton Road Horsham West Sussex RH13 5BB | 0845 345 2889 | http://www.24talk.co.uk/ | |
| 2Communications | ||||
| 2Ergo | ||||
| 2pm Technologies Ltd | Unit 20, Faraday Mill Business Park, Faraday Road, Plymouth PL4 0ST | |||
| 2-Sell-It | ||||
| 360 Solutions (UK) Ltd | 360 House Newborough Road Needwood, DE13 9PD | 0845 223 6360 | ||
| 360coms Ltd | 1 Cabot House Stocks Bridge Way Compass Point Business Park St Ives PE27 5JL | 01480 468000 | ||
| 360CRM Ltd | 80 St Vincent Street, Glasgow G2 5UB | 0141 433 0500 | http://www.360crm.co.uk/ | |
| 365 Telecom Ltd | ||||
| 3C | ||||
| 3C Technology Ltd | Network House Hawkins Road, Colchester CO2 8LA | 01206 790 060 | ||
| 3C Telecom | 67 Manor Road Romford, Essex RM1 2RD | 0870 750 7088 | ||
| 3g Comms Ltd | Cuckoo Wharf 427 Lichfield Road, Aston, Birmingham B6 7SS | 0121 328 8444 | ||
| 3it Ltd | 2 Forbes Business Centre Kempson Way Bury St Edmunds Suffolk IP32 7AR | 08456 424333 | ||
| 3Mi Ltd | ||||
| 3R Net Ltd | PO Box 42599 Wapping High Street, London E1W 3LA | 0870 1748570 | ||
| 3R Telecom Ltd | 28 Lindsey Street Epping, Essex CM16 6RD | 01992 564644 / 07958 562413 | ||
| 4 Business Calls Ltd | 282 Heywood Old Road Middleton, Manchester M24 4QG | 0807 300 4299 | ||
| 4 Networks Ltd | 95 Manchester Road, Rochdale, Lancashire OL11 4JG | 0870 906 0066 | ||
| 42 Com Telecommunication Gmbh | Friedrichstrabe 231, D-10969 Berlin, Germany | +49 (0)30-340 605 907 | ||
| 42 Telecom UK Ltd | Tower 42 (Level 7), 25 Old Broad Street, London EC2N 1HQ | 020 3411 0483 | https://www.42tele.com/ | |
| 4Com PLC | Loewy House, 11 Enterprise Way, Aviation Park West, Christchurch, Dorset BH23 6EW | 0844 375 0000 | 0844 375 3200 | http://www.4com.co.uk/ |
| 4Com Network Services LLP | 4Com House 2 Watt Road, Churchfields Sailsbury Wiltshire SP2 7UD | 0870 777 0700 | ||
| 4D Interactive | ||||
| 4most Solutions LLP | Boxhill Cottage Dorking, Surrey RH5 6BS | 0870 111 0700 | ||
| 4Net Technologies Ltd | Maclaren House Talbot Road, Manchester M32 0FP | 0845 055 6366 | ||
| 4one2one | PO Box 8681 Loughborough, Leicestershire LE11 9DZ | 0871 705 4121 | ||
| 4Sight UK | ||||
| 4SQR | 92 Margate Road Herne Bay, KENT CT6 7BJ | 0870 2247424 | ||
| 4tech Connect Ltd | 38 Morgan Way Bowthorpe Industrial Estate, Norwich , Norfolk NR5 9JJ | 0870 167 2265 | ||
| 4tel Communications | 1st Floor, Carrick Business Centre, Commercial Road, Penryn, Cornwall TR10 8AR | 0870 750 6300 | 0870 750 6301 | http://www.4telgroup.com/ |
| 4theNet Internet Ltd | The Old Bakery 61 High Street, Rottingdean BN2 7HE | 0870 740 1619 | ||
| 4ward Communications | Unit G35 Hastingwood Trading Estate Harbet Road LONDON N18 3HT | 08700 411 005 | ||
| 5 Rings Telecom Ltd | Findale House 151 Findon Road Worthing West Sussex BN14 0BQ | 0845 680 1555 | ||
| 500 Ltd | Unit 500 17 Holywell Hill St Albans Hertfordshire AL1 1DT | 0845 0000 500 | http://www.500.uk.com/ | |
| 5miles Communications Ltd | 67 London Road Bognor Regis, West Sussex PO21 1DF | 08452 249 041 | ||
| 6 Communications Ltd | 6 Communications Ltd 2nd Floor 145-157 St John Street London EC1V 4PY | 08456 525603 | ||
| 7 Telecommunications Ltd | Suite 15732 145-147 St John Street, London EC1V 4PW | 0845 894 9773 | ||
| 81G Ltd | 2 Venture Road Southampton Science Park Southampton Hampshire SO16 7NP | 0845 3030819 | ||
| A & K Communications Ltd | 408 Little Wakering Road Barling Magna Southend on Sea Essex SS3 0LP | 01702 218620 | ||
| A2B Telecom | ||||
| A4 IT Services Ltd | 54a Church Road, Ashford Middlesex TW15 2TS | 08700 634 283 | ||
| AAC Services Ltd | Manton Lane Bedford, Beds MK41 7TL | 01234 227 788 | ||
| AB Internet | http://www.abinternet.co.uk/ | |||
| Abacus Lloyd Ltd | Daws House 33-35 Daws Lane, London NW7 4SD | 08444 821 482 | ||
| Abbey Telecom Ltd | Logic House Ordnance Street Blackburn Lancashire BB1 3AE | 01254 272000 | http://www.abbeytelecom.co.uk/ | |
| Abel & Co (Scotland) | ||||
| Aberconwy Phone Services | http://www.pacetelecom.co.uk/ | |||
| Abica Ltd | 72 Elderslie Street, Glasgow G3 7AL | 0845 373 3622 | ||
| Abjak Ltd | Unit 1a, Sovereign House Bramhall Village Centre Bramhall Stockport SK7 1BD | 07710 695006 | ||
| Abrient Ltd | The Old Smithy Bath Road Oakhill Somerset BA3 5AQ | 01749 841525 | ||
| AbroadCall | http://www.abroadcall.co.uk/ | |||
| AbroadTel | http://www.abroadtel.co.uk/ | |||
| Absolute Numbers Ltd | Forum House Stirling Road Chichester West Sussex PO19 7DN | 08454 501910 | ||
| Abtec Network Systems Ltd | Barents House Compass Point Market Harborough Leicestershire LE16 9HW | 01858 438 510 | ||
| Abtec Services UK Ltd | 95-99 High Street Uckfield, East Sussex TN22 1RJ | 0844 880 2000 | ||
| Abycom Ltd | Daisy House Lindread Road Business Park Nelson Lancs BB9 5SR | 08456 777888 | ||
| Abycom International Ltd | 7 Long Road Canvey Island, Essex SS8 0JA | 01268 660600 | ||
| Abzorb Systems Ltd | Clifton House Clifton Mills Bailiff Bridge Brighouse HD6 4JJ | 01484 405 300 | ||
| Accent Telecom UK Ltd | PO Box 328 Witney, OX28, 1ZR | 0870 950 1630 | ||
| Access Telecommunications Retail Ltd | ||||
| Accounts Centre | ||||
| Ace Call Ltd | 19 Alton Road, Liverpool L6 4BH | 0151 263 5628 | http://www.acecallonline.com/ | |
| ACM Energy Consultants Ltd | 204 Brooklands Road, Sale Cheshire M33 3PH | 07599 072251 | ||
| ACN | http://www.acneuro.com/ | |||
| ACN Business | http://www.acneuro.com/ | |||
| ACN European Services Ltd | Tower 42, 25th Floor, 25 Old Broad Street, London EC2N 1HQ | 020 7949 0102 | 020 7949 0275 | http://www.acneuro.com/ |
| Acomys Ltd | 2 Church Street Wiveliscombe, Taunton TA4 2LR | 01984 678 150 | http://www.acomys.net/ | |
| Acorn Networks Services Ltd | Acorn House 5 French Place, London E1 6JB | 020 7643 5900 | ||
| ACR Networks Ltd | ||||
| ACS (UK) Ltd | Unit 11, Merchant Way Wheatley Hall Road Doncaster South Yorkshire DN5 8DT | 01302 381 600 | ||
| ACS Systems Uk Ltd | Oxwich Close Brackmills Ind Est, Northampton NN4 7BH | 01604 704000 | ||
| ACT (Comms) Ltd | Hexagon House 71 Lower Road Kenley Surrey CR8 5NH | 08707 74 75 76 | ||
| Actimax PLC | 1 Yardley Business Park Luckyn Lane Basildon Essex SS14 3GL | 01268 243 903 | ||
| Activ Communications | ||||
| Active Business Communications Ltd | Active House 11 Bredbury Business Park Bredbury Park Way Bredbury, Stockport SK6 2SN | 0161 355 1717 | ||
| Active Comm.Solutions | ||||
| Active Voice & Data Ltd | Units 7 & 9 Kendray Business Centre Thornton Road Barnsley South Yorkshire S70 3NA | 0800 542 5390 | ||
| 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 | ||
| Acuity Networks Ltd | Old Vicarage Market Street, Castle Donington DE74 2JB | 03333 440 801 | ||
| Acuity Unified Communications Ltd | 2nd Floor 2235-2243 Coventry Road, Birmingham B26 3NW | 0333 344 3030 | ||
| Acutec Ltd | St Peters House Church Hill Coleshill West Midlands B46 3AL | 01675 469020 | ||
| ADA Networks Ltd | 3 Mill Court Mill Lane Newbury Berks RG14 5RE | 01635 523131 | ||
| Adam Phones Ltd | http://www.adamphones.com/ | |||
| adapt | 142-148 Goswell Road, London EC1V 7DU | 020 7324 3700 | ||
| Adaptive Communication Solutions Ltd | 72 King Street, Southport PR8 1LG | 0800 634 8889 | ||
| Adaptivecomms | http://www.adaptivecomms.co.uk/ | |||
| Add Communications Ltd | 27 Fishergate Hill, Preston PR1 8JB | 0845 225 6006 | ||
| Adept Telecom | 1st Floor, 27 Mount Ephraim, Tunbridge Wells TN4 8BS | 0870 190 9100 | 0870 190 9101 | 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 | ||
| ADK Communications | 7a The Maltings Railway Place Hertford Herts SG13 7JT | 0845 345 9212 | ||
| Admiral Managed Networks | Victory House Chobham Street Luton Beds LU1 3BS | 0870 330 7500 | ||
| Admiral Mobile Solutions Ltd | Victory House Chobham Street Luton Bedfordshire LU1 3BS | 0845 270 5071 | ||
| Admiral Telecom | ||||
| Admiral Voice and Data Ltd | Victory House Chobham Street Luton Bedfordshire LU1 3BS | 01582 557 925 | ||
| Adodo Communications Ltd | The Howitt Building Lenton Boulevard, Nottingham NG7 2BG | 0800 092 1471 | ||
| ADP Dealer Services UK Ltd | Herongate Charnham Park Hungerford Berkshire RG17 0YU | 01635 523456 | ||
| ADSL24 Internet Ltd | 24 Media House Gatehead Business Park Delph New Road Oldham OL3 5DE | 01457 6000 24 | ||
| ADSL4less | http://www.adsl4less.com/ | |||
| 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 Comms Ltd | No 1 Nottingham Science Park Jesse Boot Avenue Universtiy Boulevard Nottingham NG7 2RU | 0844 915 0551 | ||
| Advance Network Services Ltd | ||||
| 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 | ||
| Advancz Telecommunications Ltd | 60 Bagley Lane Farsley, Leeds LS28 5LY | 0870 0666 308 | ||
| Advantage Cellular Communications Ltd | Advantage House 3a Churchward Didcot Oxfordshire OX11 7HB | 0844 264 0300 | ||
| 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 | ||
| Advantex Network Solutions Ltd | Unit 8 Mercentile Road Rainton Bridge Industrial Estate Houghton-Le-Spring Tyne and Wear DH4 5PH | 0845 222 0666 | ||
| Aero Networks Ltd | The Axis Building Maingate Team Valley Trading Estate Kingsway North Gateshead, Tyne and Wear NE11 0NQ | 0845 6430 595 | ||
| Aerofone (UK) Ltd | Aerofone (UK) Limited Manton Lane, Bedford MK41 7TL | 0845 330 7700 | ||
| Affinicom Ltd | Leeds Farm House Poplar Road Wittersham KENT TN30 7NT | 01797 270 441 | ||
| Affordable Digital Solutions Ltd | Tong Hall Tong Village, Bradford BD4 ORR | 0870 6098041 | ||
| Afrigate Ltd | Old Dominion House Gravel Hill Henley-on-Thames Oxfordshire RH9 2EG | 01491 637857 | ||
| Aggregated Telecom Ltd | Kings Reach, 38-50 Kings Road, Reading RG1 3AA | 0118 338 3001 | 0118 338 3099 | http://www.8el.com/ |
| Agile Communications Ltd | Qnet House Malleable Way, Stockton-On-Tees TS18 2QX | 0871 700 4790 | http://www.agile.uk.com/ | |
| AIC Telecom (UK) Ltd | 1st Foor, 12-13 Little Newport Street, London, WC2H 7JJ | 020 7437 7123 | 020 7437 7288 | http://www.aicom.com/ |
| Air 21 Ltd | 205 Kings Road Tyseley, Birmingham B11 2AA | 0121 314 3144 | ||
| Air Net Services Ltd | 62 St Philips Road Keyingham, Hull HU12 9TD | 0800 916 8570 | ||
| Air Telecom UK Ltd | Air Telecom UK Ltd Centre Court, 1301 Stratford Road Hall Green Birmingham B28 9HH | 08447 703804 | ||
| Airmart Ltd | 32 Shoreditch High Street, London E1 6PG | 020 7247 0101 | ||
| Airphone Telecom Ltd | ||||
| AirRadio | http://www.air-radio.com/ | |||
| Airtime Cellular Logistics | 32 Bridge Street, Uttoxeter, Straffs ST14 8AP | |||
| Airtime Express Ltd | ||||
| Airtime Manager | http://www.airtimemanager.co.uk/ | |||
| Airwave Solutions Ltd | ||||
| AIS Communications Ltd | Unit 3 The Redlands Centre Redlands Coulsdon CR5 2HT | 0845 4605000 | ||
| AJ Business Solutions Ltd | 16 Browning Street, Stafford ST16 3AX | 08707 518 900 | ||
| AK Comms Ltd | Stock Barn Lower Road Great Amwell Herts SG12 9SY | 0844 847 4447 | ||
| AK Connections Ltd | C/O Stafford and Co 2nd Floor Nelson Mill Gaskell Street Bolton BL1 2QE | 08444 128533 | ||
| AKT Projects | 142 Craig Road Gorton, Manchester M18 7GN | 0161 660 1353 | ||
| Alban Holdings | The John Dickinson Enterprise Centre London Road Hemel Hempstead Hertfordshire HP3 9QU | 0845 0654 321 | ||
| Alban Telecom | http://www.ereceptionist.co.uk/ | |||
| 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 | ||
| Alcami Business Service Ltd | ||||
| Alchemist Technologies Ltd | Alchemist House Brownrigg Loaning, Dumfries DG1 3JU | 01387 269 888 | ||
| 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 | ||
| Alfred Ashley Technical Services Ltd | (Business Phone Systems) 38 High Street Northwood Middlesex HA6 1BN | 08708 711 003 | ||
| Allcomm Communications Ltd | 8-10 Compton Road Wolverhampton, London WV3 9PH | 0845 8506107 | ||
| 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 Bell Communications Ltd | BCR House Bredbury Business Park Stockport Chesire SK6 2SN | 08456 730 011 | ||
| Alliance Business Communications Ltd | 2 Excahnge House Thomas Way Lakesview International Business, Park Canterbury CT3 4NH | 08448 878 878 | ||
| Alliance Communication Solution Ltd | Milton Heath House Westcroft Road, Dorking, Surrey RH4 3NB | 0870 770 7370 | ||
| Alliance Communication Solutions | http://www.acstelecom.co.uk/ | |||
| Alliance Communications Ltd | Towerhurst Church Road Leigh Woods Bristol BS8 3PG | 0870 300 2022 | http://www.alliancecoms.com/ | |
| Alliance Technologies LLC | ||||
| Allied Network Services Ltd | 1-2 Berkeley Square 99 Berkeley Street, Glasgow G3 7HR | 0141 567 1234 | ||
| Allodotcom Inc | ||||
| 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 Overseas International Telecommunications Services Ltd (AOITSL) | 75 route de Longwy LU 8080 Bertrange,, Luxembourg | 0845 085 0250 | ||
| Alphatalk | ||||
| Altas (No.2) Ltd | c/o Rakinsons, 14/18 Gresham Street, London EC2V 7JE | |||
| Alternative Networks | Chatfield Court 56 Chatfield Road, London SW11 3UL | 0800 816 8866 | http://www.alternativenetworks.com/ | |
| Alternative Networks TS | http://www.alternativenetworks.com/ | |||
| AlwaysOn Ltd | 1 Napier Court, Napier Road, Reading RG1 8BW | 0333 077 0000 | 0845 241 8306 | http://www.alwayson.co.uk/ |
| AM Telecom | Radclyffe House 66-68 Hagley Road, Birmingham B16 8PF | 0121 456 3273 | ||
| Amcall Communications Ltd | http://www.amcallcommunications.com/ | |||
| Amcomp Ltd | Herons Reach Chapel Road Barns Green Horsham RH13 0PS | 0870 162 4849 | ||
| Amelix Telecom | Amelix House, 8 City Business Park, Marshwood Close, Canterbury CT1 1DX | 0870 063 2010 | 0870 063 2050 | http://www.amelixtelecom.co.uk/ |
| Amerada Telecom | ||||
| AMG Computer Services LTD | AMG Computer Services LTD Unit 26 Winders Way Salford M6 6AR | 0844 8479707 | ||
| Amillan Ltd | Connection House 3 The Parkway Centre Heneage Street Birmingham | 0121 260 8100 | ||
| Ampito Ltd | 1 Farnham Road Guildford, Surrey GU2 4RG | 0870 352 1004 | ||
| Amplefuture | 22 Stephenson Way, London E14 2HD | http://www.amplefuture.com/ | ||
| Amserve | http://www.amstrad.com/ | |||
| Andalucia Telecom Ltd | Unit 6 Buckingham Court Rectory Lane Loughton Essex IG10 2QZ | 020 3195 2232 | ||
| Andrews & Arnold Ltd | Enterprise Court, Downmill Road, Bracknell RG12 1QS | 01344 400000 | 01344 400001 | http://www.andrews-arnold.co.uk/ |
| Anglia Telecom Centres PLC | 166 Hanford Road, Ipswitch, Suffolk IP1 2BH | |||
| Anglo Telecom | ||||
| Anh Communications Ltd | ||||
| Annecto Telecom | ||||
| Annodata Business Communications | ||||
| Anvil Mobile Ltd | Unit B Blois Meadown Business Centre Steeple Bumpstead Suffolk CB9 7BN | 01799 252 000 | ||
| Anycall | ||||
| AOL (UK) Ltd | Shropshire House, 11-20 Capper Street, London WC1E 6JA | http://www.aol.co.uk/ | ||
| AOL Broadband | http://www.aolbroadband.co.uk/ | |||
| AOL Europe Services SARL | IDA Business Park Cork Road, Waterford, Ireland | 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 | ||
| 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 | ||
| APM Internet | ||||
| Apnacom Ltd - | 548a Manchester Raod, Bradford BD5 7LR | 08456 520450 | ||
| Apple Telecom Europe | ||||
| Appleacre Communications | Communications House 3-5 Aleandra Terrace Alexandra Road Alderhot GU11 3HU | 01252 669 220 | ||
| Applegarth Communications Ltd | 375 Meanwood Road, Leeds LS7 2LL | 0113 2441442 | ||
| Applica | Willowbank House 84 Station Rd Marlow Bucks SL7 1NX | 0870 164 993 | ||
| Applied Voice and Data Solutions | Cathedral House 23/31 Waring Street, Belfast BT1 2DX | 028 9043 6618 | ||
| Applinet Plc | Unit 14, Thatcham Business Village Colthrop Way Thatcham Berkshire RG19 4LW | 01635 848900 | ||
| Appollo Ltd | 9 Leasowe Close Great Haywood, Stafford ST18 0RR | 08442 459123 | ||
| Appollo Converged Services Ltd | 9 Leasowe Close Great Haywood, Stafford ST18 0RR | 0843 028 2299 | ||
| APT - Information & Communication Technologies Ltd | 1st Floor Offices, Haslemere Stn Lower Street Haslemere Surrey GU27 2PE | 08445 449 450 | ||
| Aquanet | http://www.aquanetcomms.co.uk/ | |||
| Aquanet Communications Ltd | Bredbury Parkway, Stockport SK6 1SB | 0844 88 00 770 / 07595 043552 | ||
| Aquiss Ltd | PO Box 4710 Bridgnorth, Shropshire WV16 9AN | 01746 708090 | http://www.aquiss.net/ | |
| 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://www.ardencom.com/ | |
| Arkadin UK Ltd | 26-28 Hammersmith Grove, LONDON W6 7JA | 020 8742 6398 | ||
| Arkenis UK Ltd | Arkenis House Brook Way Leatherhead Surrey KT24 7NA | 01372 204700 | ||
| Armstrong Bell Ltd | Office 13, Greenbox Westonhall Road Stoke Prior Bromsgrove B60 4AL | 0845 050 5757 | ||
| Armstrong Communications Plc | 4 Cody Court Kansas Avenue Salford Manchester M50 2GE | 0161 868 3003 | ||
| Arrow Business Communications Ltd | St George's House 24 Queens Road Weybridge Surrey KT13 9UX | 0330 440 4444 | ||
| Arrow Communications Direct Ltd | 102C Bancroft Hitchin, Herts SG5 1NB | 01462 441 445 | ||
| 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.co.uk/ | |
| ASDA mobile | http://www.asda.com/ | |||
| Asergis | ||||
| Ashgoal Ltd | Unit C, Queens Road, Barnet Herts EN5 4DJ | 020 8275 5100 | ||
| Askmore Communications Ltd | Unit 3A Broncoed Business Park Mold, Flintshire CH7 1HP | 01352 758509 / 0800 804 8687 | http://www.askmorecommunications.co.uk/ | |
| Aspect International Telecoms Ltd | Claredon House High Street Stockbridge, SO20 6EY | 0845 634 5566 | ||
| Aspen Technologies Ltd | 16 The Office Village North Road Loughborough Leics LE11 1QJ | 01509 212 202 | ||
| Aspire Technology Solutions Ltd | Heworth Hall Shields Road, Gateshead NE10 0UX | 0845 6439200 | ||
| Assembly Global Networks Ltd | 45 Conduit Street, London W1S 2YN | 0844 871 8430 | ||
| Assume Nothing | ||||
| Assuract Ltd | 258 Belsize Road 26 York Road, London NW6 4BT | 0333 240 0621 | ||
| Assure Telecom | 131 Stooperdale Avenue, Darlington Co Durham DL3 0UD | 08701 903 060 | http://www.assure-telecom.co.uk/ | |
| Assured Communications (Leicester) Ltd | Park House 37 Clarence Street, Leicester LE1 3DW | 01509 348 010 | ||
| Ast Networks Ltd | Temple Court, Cathedral Road, Cardiff CF11 9HA | 0870 1160110 | ||
| 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 | ||
| Astra Connect Services | ||||
| Astro Communications Ltd | 41 High Street Swanley, Kent BR8 8AE | 01322 610 111 | ||
| Astron Communication & Information Services Ltd | PO Box 6379 Wimborne, BH21 9BN | 0800 376 3113 | ||
| Astute Communications Ltd | 323 Wilmslow Road, Manchester M14 6NW | 0844 4068 714 | ||
| As-Voip Communications | 20 Fletcher Gate, Nottingham NG1 2FZ | 01159 838795 | ||
| 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 | ||
| Atech Network Services Ltd | Unit 5 Rotherbrook Court Bedford Road Petersfield Hampshire GU32 3QG | 0844 854 0054 | ||
| Atia Solutions Ltd | Tredomen Business and Technology Centre Tredomen Park Ystrad Mynach Hengoed CF82 7FN | 02920 022200 | ||
| Atlantic | http://www.atlanticeg.co.uk/ | |||
| Atlantic Solutions | ||||
| Atlas Communications (UK) Ltd | 1 West Bank Close, Harbour Ind Estate, Belfast BT3 9LD | 028 9078 6868 | 028 9078 6888 | 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 | ||||
| Atomix Web Solutions Ltd, | Freebournes House Freebournes Road Witham Essex CM8 3US | 0845 468 0010 | ||
| Atomstream | ||||
| ATS Telecom Ltd | Repton House Bretby Business Park Ashby Road Burtin-Upon-Trent DE15 0YZ | 01283 220 688 | ||
| Audio Visual Machines Ltd | 1-3 Old Lodge Place, St Margarets, Twickenham TW1 1RQ | 0845 262 6200 | 0845 262 6201 | http://www.avmachines.com/ |
| Auracall Ltd | Britannia House, 960 High Road, London N12 9RY | 0844 545 3555 | 0844 545 3585 | http://www.auracall.com/ |
| Auracall Lines & Calls | http://www.auracall.com/ | |||
| Aurora Network Services Europe Ltd | Trident House 31-33 Dale Street, Liverpool L2 2HF | 0845 0734452 | ||
| Aurora Networks Ltd | 84-85 Long Lane, London EC1A 9ET | 0870 410 0910 | ||
| Aurora UK Ltd | Unit 7b Sherwood House Walderslade Centre Chatham Kent ME5 9UD | 01634 672 635 | ||
| Auto Personnel Ltd | 3 Mews House Princes Lane Muswell Hill London N10 3LU | 020 8444 7333 / 07887 867569 | ||
| Autovoice Ltd | 5 Rectory Lane Breadsall, DERBY DE21 5LL | 0845 257 5632 | ||
| Avalle LLP | Unit 7 Silverdale In Estate Meadow Road, Worthing BN11 2RZ | 0844 811 9211 | ||
| 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 | ||
| Avant UK Ltd | Zicon House, Belgrave Street, Leeds LS2 8DD | 0844 414 2001 | 0844 414 2002 | http://www.avantcorp.co.uk/ |
| Avaya UK | Avaya House, Cathedral Hill, Guildford GU2 7YL | 01483 308000 | http://www.avaya.com/uk/ | |
| Avenue UK Ltd | 60 Charlotte Road, London EC2A 3QT | 020 7729 2857 | ||
| Avoco UK Ltd | Unit 38 Derwentside Business Complex Villa Rental Consett, County Durham DH8 6BP | 0845 241 5500 | http://www.avoco.net/ | |
| Avonline plc | ||||
| Awayphone | ||||
| Axamba Ltd | 36 Davyhulme Road East Stretford, Manchester M32 0DW | 0870 777 5215 | ||
| 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 | ||
| Axis Telecom Ltd | Suite E, Shirethorn House, Prospect Street, Kingston Upon Hull HU2 8PX | 0844 875 1950 | 0844 875 1939 | http://www.axistelecom.co.uk/ |
| Axonex Ltd | Sixth Floor, Eagle Tower Montpellier Drive Cheltenham Gloucestershire GL50 1TA | 01242 535 700 | ||
| Aztech Global Ltd | Cart Lodge Bedlars Green Great Hallingbury Herts CM22 7TL | 0844 251 0506 | ||
| Azure Telecommunications Ltd | No 70, Annexe Four Technology Drive, Batley WF17 6ER | 0845 634 1504 | ||
| Azzurri | http://www.azzurricommunications.com/ | |||
| Azzurri Communications Ltd | Azzurri Hous Walsall Business Park Walsall Road, Aldridge West Midlands WS9 0RB | 01922 650111 | ||
| B C Computing Ltd | The Old Rectory Ferrybridge Road, Castleford WF10 4JW | 01977 667777 | ||
| B.C.M. (Transport) Ltd | 28 Bouverie Road West Folkestone, Kent CT20 2TG | 0870 870 3232 | ||
| B4U Telecom | ||||
| Baby Cow Ltd | 4 The Exchange 9 Station Road, Stanstead CM24 8BE | 0843 557 3557 | ||
| Band Telecom Ltd | Eden House, Enterprise Way, Edenbridge, Kent TN8 6HF | 020 7099 1310 | 020 7099 1311 | http://www.bandtelecom.com/ |
| 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 | 020 7170 0435 | http://www.barablu.com/ |
| Barclay Telecom | 145-149 Donegall Pass, Belfast BT7 1DT | 0845 4504650 | ||
| Barker Telecommunications Ltd | Eagle Street Bury New Road, Bolton BL2 2BU | 01204 380 002 | http://www.barkertelecoms.co.uk/ | |
| Barrington Technology Ltd | The Old Barn Cidermill Farm Partridge Lane, Newdigate Surry RH5 5BP | 0870 873 0055 | ||
| Base 16 Technology | http://www.base16technology.com/ | |||
| Batier Associates Ltd | 4th Floor, Albany House, 324-326 Regent Street, London W1B 3HH | 0800 999 2232 | 0843 512 0205 | http://www.xinix.co.uk/ |
| Bay Telecom Ltd | Suite 18 Henley House Queensway, Swansea SA5 4DJ | 0844 66 99 111 | ||
| Bay Telecommunications | 7 Redwing Close Heysham, Lancashire LA3 2BH | 01524 854 036 | ||
| Baytek Voice & Data Ltd | Unit 21, Teignbridge Business Centre Cavalier Road, Heathfield Industrial Estate Newton Abbot Devon TQ12 6TZ | 01626 833139 | ||
| BCAS (UK) Ltd | Communications House 143 Maidstone Road Rochester Kent ME1 1RR | 0845 468 6824 | ||
| BCH Digital Ltd | 16A Portland Tower, Portland Street, Manchester M1 3LD | 0844 556 7676 | 0844 556 8686 | http://www.bchdigital.com/ |
| BDI CCTV Ltd | The Arches Trinity Business Park Fox Way Wakefield, West Yorkshire WF2 8EE | 01924 370900 | ||
| BDM Voice Ltd | The Priory Centre Franklynn Road Haywards Heath West Sussex RH17 5DS | 0845 373 4100 | ||
| BDR Networks Ltd | http://www.bdrnetworks.co.uk/ | |||
| Be Un Ltd | 260 Bath Road, Slough SL1 4DX | 0113 388 1010 | ||
| Be Un Limited | Be House, 62 Lancaster Mews, London W2 3QG | 0808 101 3424 | https://www.bethere.co.uk/ | |
| Beagle Communications Ltd | ||||
| Beaming Ltd | Creative Media Centre, Robertson Street, Hastings, East Sussex TN34 1HT | 0870 199 4444 | 0870 094 1484 | http://www.beaming.biz/ |
| Beanstalk Telecom Ltd | 100 High Ash Drive Leeds, LS17 8RE | 0845 130 5211 | ||
| Belcom Networks | 3 Wellington Park, Belfast BT9 6DJ | 0845 270 4411 | ||
| Belgacom UK Ltd | 64A High Street, Harpenden, Herts AL5 2SP | 01582 763838 | http://www.belgacom.be/ | |
| Believe it Communications | http://www.4comm.com/ | |||
| Bellingham Telecommunications | ||||
| 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 | ||
| Belvoir Telecom | Main Street, Marston Lincs NG32 2HH | 01400 251607 | ||
| Benison Communications Ltd | The Beeches Station Road Laurencekirk Aberdeenshire AB30 1BE | 01561 377 660 | ||
| Berry Consultants Ltd | Units 17 & 18 Bradmarsh Business Park Bow Bridge Close, Rotherham S60 1BY | 0845 121 7333 | ||
| Bespoke Computing Ltd | Unit 28 A3 Stafford Park 4, Telford TF3 3BA | 0845 004 3025 | http://www.bespokecomputing.com/ | |
| Best 4 Business Communications Ltd | 41 Conway Road Shirley, Solihull B90 4RF | 0121 244 0787 | ||
| Best Communications | 82 Wykeham Street Kirkdale, Merseyside L4 1QY | |||
| Best Practice IFA Group Ltd | Old Bank Chambers 109-111 High Street Hurstpierpoint West Sussex BN6 9PU | 01273 837600 | ||
| Best Value Providers Ltd | 3 Trinity Street Stratford-upon-Avon, Warwickshire CV37 6BL | 0871 4 25 27 29 | ||
| Bestmobilesaver | http://www.bestmobilesaver.com/ | |||
| Bestway Communications | ||||
| Betamax GmbH & Co KG | Im Mediapark 8, D-50670 Köln, Germany | +49 221 55405564 | +49 221 3549566 | http://www.betamax.com/ |
| Better Telecom Ltd | Unit 5 & 6 Greenline Business Park Wellington Street Burton-On-Trent Staffordshire DE14 2AS | 0845 652 0248 | ||
| Better Telecoms | 121 London Road Knebworth, Herts SG3 6EX | 0870 758 2700 | ||
| BGreen Telecom Ltd | 31 Park Avenue Eastwood Leigh on Sea Essex SS9 5XB | 01268 740 556 | ||
| Bibliotech Ltd | 50 Carnwath Road, Fulham, London
SW6 3EG |
020 7384 6900 | 020 734 6901 | http://www.bibliotech.co.uk/ |
| Bicom Systems EURL | ||||
| Big Fast Web | http://www.bigfastweb.net/ | |||
| Bills R Us Ltd | Abbey Mill, Station Road Bishops Waltham Southampton Southampton SO32 1GN | 01489 896021 | ||
| BirchenallHowden Ltd | 178 Shoreham Street, Sheffield S1 4SQ | 0114 321 0555 | ||
| BIS Ltd | 38 St Mary Axe, London | |||
| BISCIT | 9 Hale Lane Mill Hill, London NW7 3NU | 0870 741 9214 | http://www.biscit.net/ | |
| BisNet Ltd | 137 Victoria Road, Ferndown, Dorset BH22 9HX | 01202 863 246 | http://www.uni.net/aec/bisnet/ | |
| Bit10 | http://www.bit10.net/ | |||
| BizKitz Communications | http://www.bizkitz.co.uk/ | |||
| Bizpax | http://www.bizpax.co.uk/ | |||
| Black & White Telecom Ltd | PO Box 13 Portrush, County Antrim BR56 8WZ | 0870 872 1080 | ||
| Black & Yellow Ltd | PO Box 6568, Newark NG23 7ER | 01522 704777 | ||
| Black Sheep Communications | http://www.blacksheepzone.com/ | |||
| Blacksheep Internet Marketing Ltd | 250 Swan Lane Hindley, Wigan WN2 4EY | 0800 092 5439 | ||
| Blackstar Internet Ltd | Unit 12 Joiners Square Industrial Estate Hampton Street Stoke-On-Trent ST1 3EX | 01782 279 333 | ||
| Blaze Networks Ltd | Beechfield House Lyme Green Business Park Winterton Way Macclesfield, Cheshire SK11 0LP | 01625 511475 | ||
| Bleckfield Broadband | http://www.bleckfield-broadband.com/ | |||
| Blink Telecom Ltd | The Old Mill Bexley High Street Bexley Kent DA51 1JX | 020 3327 5000 | ||
| Blizzard Telecom Ltd | Swan Court Waterhouse Street Hemel Hempstead Hertfordshire HP1 1DS | 0845 8737950 | ||
| Bloxham Mill Services Ltd | Bloxham Mill Barford Road Bloxham Banbury OX15 4FF | 01295 724545 | ||
| Blue & Red Ltd | PO Box 1003, Peterborough PE1 9GG | 0845 603 0603 | ||
| Blue Diamond Telecommunications Ltd | Alexander House 106 Pembroke Road Ruislip Middlesex HA4 8NW | 0870 055 4242 | ||
| Blue Line Communications | Trewen The Street Motcombe Shaftsbury, Dorset SP7 9PF | 01747-854410 | ||
| Blue Line Telecom Ltd | 0/1 37 Stanmore Road, Glasgow G42 9AJ Scotland | 07850 560266 | ||
| Blue Ridge Telecom Systems LLC | ||||
| Blue River Telecom LTD | 167 Dunstable Road, Luton LU1 1BW | 0844 545 0808 | ||
| 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 | 0345 194 8253 | http://www.blueskymanagement.co.uk/ |
| Blue Sky UK | ||||
| Blue Spot Technologies | 100 Mount Pleasant, Westerham, Kent TN16 3TR | 0870 950 5550 | ||
| Blue Square Telecoms Ltd | 1a Bow Lane, London EC4M 9EE | 020 7618 1980 | ||
| Blue Telecommunications | ||||
| Bluebell | http://www.bluebelltelecom.com/ | |||
| 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 | ||
| Bluecherry Telecom Ltd | Queensway House 207-209 Queensway, Bletchley MK2 2ED | 01908 632 943 | ||
| Bluecom (UK) | ||||
| Bluecube Telecommunications Ltd | 1 Whitefriars Business Centre High Street, Lincoln LN5 7DQ | 0845 3713 939 | ||
| Blueridge Telecom Systems LLC | 60 Cannon Street, London EC4N 6JP | 0800 032 1890 | http://www.blueridgetel.co.uk/ | |
| Bluevolution Ltd | 61-71 Cornwall Street, Birmingham B3 2EE | 0800 015 2772 | ||
| Bluewater CCS Ltd | Unit 15 Morgans Business Park Norton Canes, Cannock WS11 9UU | 01543 270 345 | ||
| BlueWave Communications | ||||
| Bluu Sky Connections Ltd | Manor Farm House London Rd Shardlow Derby DE72 2GR | 01332 799 716 | ||
| Boldfield Ltd | Cambridge House 91 High Street Longstanton Cambridge CB24 3BS | 01954 789 978 | ||
| BON.net | St George House, George Street, Huntingdon, Cambs PE29 3BD | 0845 660 5480 | 0845 660 5481 | http://www.bon.net/ |
| Borlin | ||||
| Boundary Networks Ltd | 20 Willowbrook Road Worthing, West Sussex BN14 8NA | 01903 232222 | ||
| Bourke Telecomunicaoese Servicos LDA | Unit 21, Park Royal Metro Centre Britannia Way London, NW10 7PA | 020 8965 8964 | ||
| Bowe Digitl: integration Ltd | Units 1 & 2 Bearl Farm Bywell Stocksfield Northumberland NE43 7AJ | 01661 845905 | ||
| Box Ltd | First Avenue Minworth, Sutton Coldfield B76 1BA | 0121 202 0000 | ||
| Boxx Communications Ltd | Norfolk House East Entrance 499 Silbury Blvd Milton Keynes MK9 2AH | 01908 615791 | ||
| B-Partners Ltd | 10 Barley Mow Passage Chiswick, London W4 4PH | 020 8090 2971 | ||
| Brandford Consulting Ltd | 41 Hartley Down Purley Croydon Surrey CR8 4EF | 020 8407 9034 | ||
| Breeze Telecom Ltd | Moulsham Mill Parkway, Chelmsford CM2 7PX | 0845 888 7800 | ||
| Breeze8 Ltd | Wessex House Oxford Road Newbury Berkshire RG17 0JF | 01635 246030 | ||
| Brent Telecom | 1 Coalisland Road Dungannon, Co Tyrone BT71 6JT | 02887 729580 | ||
| Bridgecom Networks Ltd | 2 Alexandra Gate Ffordd Pengam, CARDIFF CF24 2SA | 02920 452 525 | ||
| Bridgemill | ||||
| Bridgwater Communications(South West) Ltd | 57 Eastover Bridgwater, Somerset TA6 5AP | 01278 439 300 | ||
| Bright Telecom Ltd | 24 Warren Avenue, Cheadle SK8 1ND | 0161 900 5907 | ||
| Brighter Bills Ltd | Tarporley Business Centre Nantwich Road Tarporley Cheshire CW6 9UT | 07973 218341 | ||
| Brighter Connections | The Continental Suite Hill Top Road, Huddersfield HD1 4SD | 01484 467840 | ||
| Brightview Internet Services | 9-10 Grafton Street, London W1S 4EN | 020 7665 3000 | ||
| Britannia Communications | http://www.telesiscomms.com/ | |||
| Britannia Mobile Communications Ltd | 2 Thomas Holden Street, Bolton BL1 2QG | 01204 550626 | ||
| Britannia Network Services Ltd | Britannia House 2 Thomas Holden Street, Bolton, Lancashire BL1 2QG | 0870 754 5556 | ||
| Britannia Telecommunications Ltd | 15 Bishops Grange Rugeley, Staffordshire WS15 3JY | 0800 012 6336 | ||
| Britannic Technologies Ltd | http://www.btlnet.co.uk/ | |||
| Britclick Telecom | 40 Huddersfield Road Meltham Huddersfield West Yorkshire HD9 4AG | 0845 1 292922 | ||
| Centrica PLC | 97 Talbot Road, Old Trafford, Manchester M16 0TW | 0800 072 1945 | 0800 072 1955 | http://www.home.co.uk/ |
| British Telecommunications PLC | 81 Newgate Street, London, EC1A 7AJ | 020 7356 5000 | http://www.bt.com/ | |
| Broadband Wherever | Unit C4, Grovelands Avenue, Winnersh, Wokingham RG41 5LB | 0800 068 3358 | http://www.broadbandwherever.net/ | |
| Broadcast Telecom Ltd | Amadeus House, 27B Floral Street, London WC2E 9DP | http://www.broadcasttelecom.com/ | ||
| Broadtalk Communications Ltd | 3-5 Kewus Road Sidcup, Kent DA14 4NB | 020 8309 1400 | ||
| 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 | ||
| Bruin Communications Ltd | PO Box 98 Leominster, Herefordshire HR6 6AY | 0844 493 0455 | ||
| BSKYB LLU Assets Ltd | Grant Way, Isleworth, Middx TW7 5QD | http://www.sky.com/ | ||
| BSKYB Telecommunications Services Ltd | Grant Way, Isleworth, Middx TW7 5QD | http://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 Standard Business | http://www.bt.com/ | |||
| BT Standard Residential and Payphone | http://www.bt.com/ | |||
| BtL Communication Ltd | Manhattan House, 140 High Street, Crowthorne, Berks RG45 7AY | 0845 450 2100 | 0845 450 2101 | http://www.btlcom.com/ |
| BTT Network Solutions LTD | Five Willows Farm Old Thrapston Road Cranford Northampton NN14 4AW | 01536 211100 | ||
| Budd Communications Ltd | Unit 3 Willcock House Southway Drive Warmley Bristol BS30 5LW | 0845 130 2664 | http://www.buddconnect.co.uk/ | |
| Budget Numbers | STANTA Breakspear Park, Breakspear Way Hemel Hempstead Hertfordshire HP2 4TZ | 0845 5000 567 | ||
| Budgetcom | http://www.budgetcom.co.uk/ | |||
| Bulldog | http://www.bulldogbroadband.com/ | |||
| Burnt Orange Solutions Ltd | BCR Building 3 Bredbury Business Park Stockport Cheshire SK6 2SN | 0844 740 1632 | ||
| Business Broadcast Communications | ||||
| 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 Efficiency Ltd | 8 Robin Crescent, London E6 5XA | 07933 361504 | ||
| Business Essentials Midlands Ltd | 94 Grove Lane Birmingham, West Midlands B21 9HA | 0121 285 0349 | ||
| Business IT Experts Ltd | First Floor 21 Kings Avenue Prestatyn Denbigshire LL19 9AA | 01745 886 954 | ||
| Business IT Support.Net | http://www.businessitsupport.net/ | |||
| Business Link Interactive Linited | No1 Bradwall Court Bradwall Road Sandbach Cheshire CW11 1GE | 07850 749564 | ||
| Business Network Services | ||||
| Business Network Solutions Ltd | 167 Stafford Street Walsall, West Midlands WS2 8EA | 01922 471 890 | ||
| Business Phone Calls Ltd | ||||
| Business Phones & Networks Ltd | The Stables Wassell Grove Lane Hagley Stourbridge DY9 9JH | 0844 822 1212 | ||
| Business Serve Plc | ||||
| 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 Telecom Solutions Ltd | ||||
| Business Telenet (UK) Ltd | ||||
| Business Telephone Network Services Ltd | 5 Fewster Road Nailsworth, Glos GL6 0DH | 01453 833 684 | ||
| Business Transfer Communications Ltd | ||||
| Business VoIP Communications | 85/12 Hopetoun Street, Edinburgh EH7 4NJ | 0845 223 7251 | ||
| BusinessCall | Newhaven Pyrford Woods Woking Surrey GU22 8QR | 01932 356 222 | ||
| BusinessWatch UK Fire & Security Ltd | Unit 9 Swan Court Forder Way Peterborough PE7 8GX | 0845 290 3733 | ||
| Businesswatch UK Telecommunications Ltd | Unit 6 Orton Enterprise Centre Bakewell Road Orton Southgate Peterborough PE2 6XU | 01733 239 997 | ||
| Buy Trade Phones Ltd | 91 Eldon Road Caterham, Surrey CR3 5JU | 0845 658 2489 | ||
| Buzz Telecommunication Ltd | 26 Seymour Street, London W1H 5WD | 01375 402662 | ||
| Buzzme | http://www.buzz-me.co.uk/ | |||
| BWN Telecom | Winchester House, 35 Carlton Crescent, Southampton SO15 2EW | 023 8033 1516 | 023 8033 1495 | http://www.bandwidthnetworks.co.uk/ |
| BWR International | ||||
| Bytebak Ltd | 1b South Mill Warwick Mill Warwick bridge Carlisle CA4 8RR | 01228 562 666 | ||
| Bytefetch Ltd | 92 Cobden Avenue Bitterne Park Southampton Hants SO18 1FS | 0844 704 8560 | ||
| C Mobile | http://www.cmobile.co.uk/ | |||
| C2 Communications | ||||
| C2-UK Communications Ltd | Ribble Court, 1 Mead Way Shttleworth Mead Ind Estate Padiham Lancashire BB12 7NG | 0845 458 6622 | ||
| C3 Ltd | The Jeffreys Building St. Johns Innovation Centre Cowley Road Cambridge CB4 0WS | 01223 427700 | ||
| C3 Europe | ||||
| Cable & Wireless PLC | 26 Red Lion Square, London, WC1R 4HQ | 020 7111 0047 | http://www.cw.com/ | |
| Cable & Wireless Communications | 26 Red Lion Square, London, WC1R 4HQ | 020 7315 4000 | http://www.cwig.com/ | |
| Cable and Wireless Guernsey | PO Box 3, Telecoms House, Upland Road, St Peter Port, Guernsey GY1 3AB | 01481 700700 | 01481 724640 | http://www.surecw.com/ |
| Cable & Wireless Jersey | ||||
| Cable & Wireless UK | Waterside House Longshot Lane Bracknell Berkshire RG12 1XL | 01344 713058 | ||
| Cable & Wireless UK (Thus) | 1-2 Berkeley Square, 99 Berkeley Street, Glasgow G3 7HR | 0800 027 5848 | 0141 566 3105 | http://www.thus.net/ |
| Cable & Wireless UK (Your Communications) | ||||
| Cable and Wireless (Energis) | Lakeside House Cain Road Waterside Park Bracknell, Berkshire RG12 1XL | 0800 316 1600 | ||
| Cable and Wireless Isle of Man | ||||
| Cable Telcommunications Ltd | 15 The Broadway Woodford Green, Essex IG7 6LU | 020 8506 6481 | ||
| Cable Telecom (GB) Ltd | ||||
| Cable&Wireless Worldwide | Liberty House, 76 Hammersmith Road, London W14 8UD | 020 7528 2000 | http://www.cwworldwide.com/ | |
| 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/ | |
| Cad-Capture LTD | Challenge Way Greenbank Technology Park, Blackburn BB1 5RR | 01254 504420 | ||
| 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 | ||
| Caladan Communications Ltd | Epworth House, 25 City Road, London EC1Y 1AA | http://www.portal.caladan.net/ | ||
| Calibre Network Ltd | ||||
| Caliccom Ltd | 17 St Peters Place Fleetwood, Lancashire FY7 6EB | |||
| Call Centre Technology Ltd | Oxleigh House 540 Bristol Business Park Coldharbour Lane Bristol BS16 1EJ | 0117 311 3311 | ||
| Call Connect Ltd | PO Box 8026, Reading RG6 9DR | 0800 197 3545 | ||
| Call Flow Solutions Ltd | Suite 2, Branbridges Industrial Estate Branbridges Road East Peckham Kent TN12 5HF | 01622 873810 | http://www.callflowsolutions.com/ | |
| Call Handling Services Ltd | 23 Plympton Street, London NW8 8AB | 0333 3210888 | ||
| Call Happy | http://www.callhappy.co.uk/ | |||
| Call Monitor | http://www.callmonitor.com/ | |||
| Call Navigator IP | http://www.callnavigatorip.co.uk/ | |||
| Call Navigator TM | http://www.call-navigator.co.uk/ | |||
| Call Options Bristol & Bath Ltd | ||||
| Call Portal Ltd | Lion House New Road Rougham Suffolk IP30 9LJ | 08000 776909 | ||
| Call Sciences Ltd | 115 Whitby Road, Slough SL1 4DR | 01753 587231 | http://www.callsciences.co.uk/ | |
| Call Sense UK Ltd | Unit F19 Scope House Weston RD Crewe CW1 6DD | 08704 42 43 44 | http://www.call-sense.co.uk/ | |
| Call Stream | Bordesley Hall The Holloway, Alvechurch, Birmingham B48 7QA | 0870 787 7868 | ||
| Call Telecom | ||||
| Call Union | 46 Cannon Street, London EC4N 6JJ | http://www.callunion.com/ | ||
| Call118866 | PO Box 44714, London SW1Y 4XD | 0844 861 8040 | http://www.call18866.co.uk/ | |
| Call2Call | http://www.call2call.co.uk/ | |||
| Callagenix | http://www.callagenix.com/ | |||
| Callax Telecom Ltd | Level 7, Tower 42, 25 Old Broad Strret, London EC2N 1HN | 020 7877 0432 | 020 7877 0708 | http://www.callax.com/ |
| CallFUSION | http://www.adtsystems.co.uk/ | |||
| Callgen | ||||
| Call-Link Communications Ltd | 14 Hemmells, Laindon, Essex SS15 6ED | |||
| Callmaster Ltd | Wrecclesham Road Wrecclesham, Fernham, Surrey GU10 4PS | 01252 711 053 | ||
| Callmonitor Ltd | 150 Regent Street, London W1B 5SJ | 0800 074 456 | 0800 074 458 | http://www.callmonitor.com/ |
| CALLMORE | http://www.callmore.co.uk/ | |||
| Calls 4 Business Ltd | The Stables Potlocks Farm Willington Road Findern DE65 6AS | 0844 908 0080 | ||
| Calls Discount | http://www.callsdiscount.com/ | |||
| Callsave UK Ltd | 17-19 Park Lane, Poynton, Stockport SK12 1RD | 0871 871 7070 | http://www.callsaveuk.com/ | |
| Callserve Communications Ltd | 2 Harbour Exchange Square, London E14 9GE | 020 7517 7100 | 020 7517 7101 | http://www.callserve.com/ |
| Callsure Business Telephone Numbers | 36 Duncroft, Windsor, Berks SL4 4HH | 01753 624121 | 0871 277 2234 | http://www.callsure07050.co.uk/ |
| Callswitch Technologies Ltd | 3 Lorne Park Road, Bournemouth BH1 1LD | 0800 215 5155 | http://www.callswitchtech.com/ | |
| Calltracks | ||||
| CallUnion | http://www.callunion.com/ | |||
| Callworld UK | ||||
| Calpe Group | ||||
| Calteq Ltd | Weston Business Centre Parsonage Road Takeley Essex CM22 6PU | 0845 2000002 | ||
| Calyx Networks Ltd | The Pavilion Tower Business Park Wilmslow Road Didsbury M20 2LS | 0870 055 0000 | ||
| Cambrian Communication Cyf | 12 Hole in the Wall Street Caemarfon, Gwynedd LL55 1RF | 01286 672866 | ||
| CANetworks Ltd | ||||
| Capital Marketing Resources UK | ||||
| Capital Network Solutions Ltd | Cardiff House Cardiff Road Barry Vale of Glamorgan CF63 2AW | 0845 3054118 | ||
| 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 Telecoms Ltd | 2A Forest Drive Theydon Bois Epping Essex CM16 7EY | 07737 273535 | ||
| 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 | ||
| Captive8 Ltd | ||||
| CardBoardFish | First Floor, Saxon House, John Roberts Business Park, Pean Hill, Whitstable Kent CT5 3BJ | 0845 125 9445 | 0845 280 2230 | http://www.cardboardfish.com/ |
| Carden Computers Ltd | 191 Carden Avenue, Brighton East Sussex BN1 8LE | 01273 552059 | ||
| The Carphone Warehouse Group PLC | 1 Portal Way, London W3 6RS | 020 8896 5000 | 020 8896 5005 | http://www.cpwplc.com/ |
| Carritech Ltd | Hedgerows Horam, East Sussex TN21 0LJ | 01435 812 306 | ||
| Carrotcity | http://www.carrotcity.com/ | |||
| Cartel Communications | http://www.cartel.co.uk/ | |||
| Carter Allen | 4b The Listed Building 350 the Highway, LONDON E1W 4HU | 0870 053 7000 | ||
| Case Communications Ltd | Unit 12E Norths Estate Old Oxford Road Piddington High Wycombe HP14 3BE | 0845 643 0800 | ||
| 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 | ||
| Catalyst Communications Networks Ltd | 5 Cartwright House County Street London, SE1 6AN | 020 7787 4100 | ||
| 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 | ||
| Cavendish Communications Ltd | Cavendish House, New Road, Newhaven, East Sussex BN9 0ES | 01273 615600 | 01273 615605 | http://www.cavcoms.com/ |
| Cavendish Maintenance Ltd | ||||
| CCS Media Ltd | Old Birdholme House Derby Road Chesterfield Derbyshire S40 2EX | 01246 200 200 | ||
| CECOM | 11 Pyle Road Bishopton, Swansea SA3 3HH | 0800 019 8333 | ||
| Cedar Telecom Ltd | Innovation House Mill Street, Oxford OX2 0JX | 01865 458 609 | http://www.cedar-telecom.co.uk/ | |
| Celcom Ltd | 277-279 Wood Street, London E17 3ND | 0845 021 2323 | ||
| CellCall Ltd | ||||
| Cellsite Communications Ltd | 7 Station Road Yate, Bristol BS37 5HT | 01454 881 821 | ||
| Celltek Communications UK Ltd | Globe House Moss Bridge Road, Rochdale O46 5EB | 0870 905 0789 | ||
| Cellular Communications Ltd | ||||
| Cellular Solutions & Services Ltd | Solutions House Knoll Business Park Old Shoreham Road Hove BN3 7GS | 01273 424220 | ||
| Cencion Communications Ltd | 6 Brewery Yard Deva Centre Trinty Way Manchester M3 7BB | 0870 7515555 | ||
| Centonex Domains | http://www.centonexdomains.com/ | |||
| Central Technology Ltd | Central Technology Ltd Beresford Way, Chesterfield S41 9FG | 08456 43 43 46 | ||
| Centrin Ltd | 76 Guinea Hall Lane Banks, Southport PR8 8BT | 08442 451 555 | ||
| 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 | ||
| Centronet 3 | http://www.cartel.co.uk/ | |||
| 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 | ||
| Cerl Networks Ltd | Suite 13 7 Beach Road South Shields Tyne and Wear NE33 2QA | 0191 406 0400 | ||
| Certus Communications Ltd | Suite 3.2 111 Union Street, Glasgow G1 3TA | 0845 520 5999 | ||
| CFL | http://www.cflmedia.com/ | |||
| CFL Comms | http://www.cflmedia.com/ | |||
| CFL Communications | ||||
| Chain Telecommunications Ltd | ||||
| Chalvington Communications Ltd | http://www.chalvingtoncomms.co.uk/ | |||
| Chamber Communications Ltd | 40 Princess Street, Manchester M1 6DE | 0845 6666551 | ||
| Change Implementations Ltd | 5 Amhurst Road Telscombe Cliffs, Brighton BN10 7AG | 0845 4506388 | ||
| Channel Force Ltd | USC House Choseley Road, Docking, Norfolk PE31 8LZ | 0870 750 8300 | ||
| Channel Media Communications | 40 Hollerith Rise Bracknell, Berkshire RG12 7GJ | 01344 670015 | ||
| 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 | 0845 330 0017 | http://www.channeltelecom.com/ |
| Charity Buying Group | http://www.cbgtelecom.com/ | |||
| Charles Street Communications Ltd | 6 Duke Street St Jame's, London SW1Y 6BN | 020 7451 1313 | ||
| Charlton Networks Ltd | The Canterbury Business Centre 18 Ashchurch Road Tewkesbury Gloucestershire GL20 8BT | 001684 856830 | ||
| Charterhouse Voice & Data PLC | Gate House 5 Chapel Place Rivington Street London EC2A 3DQ | 020 7613 7395 | ||
| Chase Telecom Ltd | 2/7 Canon Lane, Edinburgh EH3 5HD | 0131 557 2771 | ||
| Cheap Calling | http://www.cheapcalling.co.uk/ | |||
| Cheap International Calls | 3rd Floor, Bristol & West House, Post Office Road, Bournemouth BH1 1BL | 0844 332 1234 | http://cheapinternationalcalls.co.uk/ | |
| Cheapdial | http://www.cheapdial.co.uk/ | |||
| Cheapest International Calls LLP | 31-33 High Holborn, London WC1V 6AX | 01930 26611 | http://www.cheapestinternationalcalls.com/ | |
| CheapestChat | PO Box 20338, London NW11 9ZW | 0870 041 2214 | 0870 041 2215 | http://www.cheapestchat.com/ |
| Check Communications Ltd | ||||
| Cheers Followme | http://www.cheersfollowme.co.uk/ | |||
| Cheers International Telecom Ltd | Britania House, 1-11 Glenthorne, London W6 0LH | 0870 244 4422 | 0870 244 7007 | http://www.cheersinternational.com/ |
| Cheers Record | http://www.cheersrecord.co.uk/ | |||
| Cheersdial | http://www.cheersdial.co.uk/ | |||
| Cheersdirect | http://www.cheersdirect.co.uk/ | |||
| Cheerstalk | http://www.cheerstalk.co.uk/ | |||
| Cherry Call | 3rd Floor, Bristol & West House, Post Office Road, Bournemouth BH1 1BL | 0844 332 1444 | http://www.cherry-call.co.uk/ | |
| Cherry Telecom Ltd | Manor Farm 12 Alder Drive, Timperley Altrincham Cheshire WA15 7YG | 0870 751 3292 | ||
| Cheshire Cricket Telecom Ltd | The Pavilion 26 Oakwood Way Hamble Hampshire SO31 4HH | 0845 450 3413 | ||
| Cheshire Telecom Ltd | Fernessia House 29 Avon Road Hale Altrincham, Cheshire WA15 0LB | 0870 034 5050 | http://www.cheshiretelecom.com/ | |
| Chess plc | http://www.chesstelecom.com/ | |||
| Chester Communications | 225 Hoole Lane Chester, Cheshire CH2 3EP | 01244 348667 | ||
| Chesterfield Associates | Fitzroy House Lynwood Drive Worcester Park Surrey KT4 7AT | 020 8715 0200 | ||
| Chilli Telecom Ltd | New Chartered House Centuriion Way Cleckheaton West Yorkshire BD19 3QB England | 0844 8710181 | ||
| Chime Telecom Ltd | ||||
| Teledesign Ltd | Oakfield Wrotham Hill Road Wrotham Sevenoaks, Kent TN15 7PT | 020 7047 4446 | ||
| Choose Pure Solutions Ltd | Imex Business Centre Brookfiled Road Arnold Nottingham NG5 7ER | 08700 116 383 | ||
| ChunkyChips.net Ltd | ChunkyChips.net Ltd Units 1-2 Cornell Estate Navigation Road Chelmsford,Essex CM2 6HE | 0870 255 8000 | ||
| Churchill Office Solutions Ltd | 381/385 Tyburn Road, Erdington Birmingham B24 8HJ | 0121 6938208 | ||
| CI Wholesale Ltd | The Hemmel Blagdon Lane Cramlington Northumberland NE23 8AU | 0800 2800 030 | ||
| CI-Net Ltd | Network House Langford Locks Kidlington Oxford OX5 1GA | 01865 856 020 | ||
| Circle Computers Ltd | Chipping Court 1 Chipping Hall Barns Chipping Herts SG9 0DP | 01707 818 085 | ||
| Citicom Network Services (UK) Ltd | ||||
| Citiwide Facilities Management Ltd | 6 & 7 Harbour Exchange Square, London E14 9GE | 0207 419 5992 | ||
| Citrix Online UK | http://www.citrixonline.co.uk/ | |||
| Citrus Networks UK Ltd | Orchard House 85 Mosslea Road Whyteleafe Surrey CR3 0DS | 020 7100 2410 | ||
| Citrus Telecom Ltd | Keystone House, Exeter Road, Bournemouth BH2 5AR | 01202 317657 | 01202 293555 | http://www.citrusretail.com/ |
| City Interactive Media | ||||
| City Numbers Ltd | 1st Floor, 2 Marlin Office Village, 1250 Chester Road, Birmingham B35 7A | 0845 366 6555 | 0845 366 6556 | http://www.citynumbers.co.uk/ |
| City Telecom | CET House 36 Golders Gardens, London NW11 9BU | 0808 129 6000 | http://www.citytelecom.co.uk/ | |
| City Voice & Data Ltd | 152-160 City Road, London EC1V 2NX | 0845 5192622 | ||
| Citytalk Communications Ltd | Unit 22 Anglo Business Park Smeaton Close Aylesbury Bucks HP19 8UP | 0845 618 9828 | ||
| 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 | ||
| Claritas Solutions Ltd | Bowcliffe Hall Bramham, Wetherby LS23 6LP | 01937 849966 | ||
| Clarity Telecom | First Floor 103-113 Ravenhill Road, Belfast BT6 8DR | 0800 912 0999 | http://www.claritytele.com/ | |
| Clarocom Ltd | 78 York Street, London W1H 1DP | 0845 835 0404 | ||
| Clarus Business Solutions Ltd | Lakesview International Business Park Canterbury, Kent CT3 4NH | 0844 858 9235 | ||
| Class Affinity Projects Ltd | The White House Church Road, Leatherhead, Surrey KT22 8BB | 0870 770 0321 | ||
| Clear Broadband | http://www.clear-connect.com/ | |||
| Clear Comms Ltd | 26 York Street Westminster, London W1U 6PZ | 0845 402 3002 | ||
| Clear Computing Ltd | 14b Brookside Business Park Brookside Avenue Rustington West Sussex BN16 3LP | 01903 786 702 | ||
| Clear Connect Ltd | Connect House P.O. Box 143, Swansea SA2 0WT | 0870 990 9939 | http://www.clear-connect.com/ | |
| Clear Digital Serives Ltd | 4th Floor 72 Church Street, Liverpool L1 3AY | 0151 7072125 | ||
| Clear Hosting | http://www.clear-connect.com/ | |||
| Clear Hotspots | http://www.clear-connect.com/ | |||
| Clear Talk Telecom | 60 Sherborne Street, Manchester M8 8LR | 0844 225 1225 | ||
| Clear Telecom and Data Ltd | 291 London Road Hadleigh, Essex SS7 2BN | 01702 539896 | http://www.cleartelecom.co.uk/ | |
| 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 | ||
| Clearly Connected Ltd | 15 Bishops Grange, Rugeley Staffs WS15 3JY | 01889 574476 | ||
| ClearPath IP Ltd | Innovate Office Lake View Drive Sherwood Park Nottingham NG15 0DA | 01623 687777 | ||
| 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 | ||
| Clearvoice Communications Ltd | ||||
| Clemcom | ||||
| CLEO (Cumbria and Lancashire Education Online) Ltd | County Hall Fishergate, Preston PR1 8XJ | 0845 053 0006 | ||
| Clever IP Ltd | Bay Tree Cottage The Village Burton Neston CH64 5TH | 0845 270 2980 | ||
| Clever Rates | http://www.cleverates.com/ | |||
| Clicknetworks Ltd | 1 Tennant Avenue College Milton, South East Kilbride G74 5NA | 0141 530 9116 | ||
| Clickphone Ltd | Unit 9 17 Piries Place Horsham West Sussex RH12 1BF | 01403 339 809 | ||
| Cloud Net Ltd | 34 Green Lane, Walsall WS2 8HB | 01922 213333 | 01922 213344 | http://www.cloudnetuk.com/ |
| Cloud Nine Telecom Ltd | Moulsham Mill Parkway Chelmsford Essex CM2 7PX | 0800 988 7473 | ||
| Cloud Phone Warehouse | http://www.cloudphonewarehouse.com/ | |||
| Cloud Telecom Ltd | Unit 3 Kingfisher House, New Mill Road, Orpington, Kent BR5 3QG | |||
| Cloud9 Communications Ltd | Pinewood, Chineham Business Park, Crockford Lane, Chineham, Basingstoke, Hants RG24 8AL | 01277 779109 | http://www.cloud9-mobile.co.uk/ | |
| Club Call Management Ltd | 69 North Lane Astley Tyldesley Manchester M29 7AB | 0845 056 5666 | ||
| Club Communications Ltd | New Technology House, Bath Road, Nailsworth, Stroud, Glos GL6 0HH | |||
| Club Talk Ltd | Ailesbury Close Chippenham, Wiltshire SN15 3TX | 08712 310 410 | ||
| Club-Tel Ltd | Club House 2 Brookfield Avenue, Blackrock, Dublin | 00 (353) 1278 9 | ||
| CMR Consultants Ltd | ||||
| CMS Broadband | http://www.cmsbroadband.net/ | |||
| CMT | http://www.cmtelecom.info/ | |||
| C-Net Ltd | 17 Oyster Place Montrose Road Chelmsford Essex CM2 6TX | 01245 451 651 | ||
| CNS Ltd | Bradley House St Albans Lane, Golders Green, London NW11 7QE | 020 8455 6044 | ||
| CNS Communications Ltd | 47 Oxford Drive, London SE1 2FB | 020 7403 3705 | ||
| CNW Communications Ltd | ||||
| Coach House Communications Ltd | The Coach House Sherridge Leigh Sinton Malvern Worcs WR13 5DB | 0870 4440888 | http://www.coachhousecommunications.co.uk/ | |
| Cobalt Telephone Technologies | ||||
| Cobus Ltd | Empire House 22 Strickland Street Hull East Yorkshire HU3 4AQ | 01482 421070 | ||
| Cogent Business Ltd | 143e Arthur Road, Windsor SL4 1SE | 01753 855 972 | ||
| Cole Robert & Co Ltd | 35 Marsh Parade, Newcastle ST5 1BT | 0870 787 0387 | ||
| Colloquium | 101 Abercorn Street, Paisley PA3 4AT | 08454 330 000 | ||
| Colt Technology Services Group Ltd | Beaufort House, 15 St. Botolph Street, London EC3A 7QN | 020 7390 3900 | 020 7390 3901 | http://www.colt.net/ |
| COLT Mobile Telecommunications Ltd | ||||
| Colt Telecom | http://www.colt.net/ | |||
| Columbus Telecom Ltd | Milngavie Enterprise Centre Ellangowan Court, Glasgow G62 8PH | 0870 060 3602 | http://www.columbustelecom.com/ | |
| Columbus Telecom Solutions Ltd | 1 Colquhoun Drive, Bearsden, Glasgow G61 4NQ | 0141 943 1943 | ||
| Columbus Telecommunications Ltd | Fern House, 4 Golf Links Avenue, Hinhead, Surrey GU26 6PQ | |||
| Com Management Inc | ||||
| Comcen Computer Supplies Ltd | Bruce Road Swansea West Ind Park, Swansea SA5 4HS | 01792 515 566 | ||
| Commando Telecom Ltd | 724 Fulham road Fulham, London SW6 5SF | 07952 717215 | ||
| Commexchange Ltd | Unit 2 Knowl Piece Wilbury Way Hitchin SG4 0TY | 01462 426 500 | ||
| comms 365 | http://www.comms365.com/ | |||
| Comms Consulting Ltd | 20 Meridian Way, Norwich NR7 0TA | 0333 320 0515 | ||
| Comms Direct Telecom Ltd | Dominions House Dominions Arcade Queen Street Cardiff CF10 2AR | 0844 6331818 | ||
| Comms Factory Ltd | Premium House, The Esplanade, Worthing, West Sussex BN11 2BJE | 0800 008 7286 | http://www.comms-factory.com/ | |
| Comms FM | http://www.commsfm.com/ | |||
| Comms Group (UK) Ltd | Unit 2 IO Centre Barn Way Lodge Farm Northampton NN5 7UW | 0844 848 8144 | ||
| Comms Management Ltd | Connaught House Riverside Business Park Benarth Road, Conwy North Wales LL32 8UB | 0845 450 3040 | http://www.commsmanagement.co.uk/ | |
| Comms Management Wales | http://www.commsmanagement.co.uk/ | |||
| 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 Uk Ltd | Comms House Collingwood Road West Morrs, Wimborne Dorset BH21 6QW | 01202 894222 | http://www.comms.uk.com/ | |
| Commsbill | http://www.triangletelecom.co.uk/ | |||
| CommsFM Ltd | Caledonia House Lawmoor Street, Glasgow G5 0US | 0800 975 0700 | http://www.commsfm.com/ | |
| 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 | ||
| Commstel Ltd | Spectrum House Dunstable Road Redbourn, St Albans Hertfordshire AL3 7PR | 01727 260 101 | ||
| Commsworld Ltd | Commsworld House Peffer Industrial Estate Peffer Place Edinburgh EH16 4BB | 0141 353 4211 | http://www.commsworld.com/ | |
| Bellview Communications Ltd | 47 Cressex Enterprise Centre Lincoln Road High Wycombe Bucks HP12 3RL | 01494 538858 | ||
| Commsxchange Network Connect Ltd | 47 Cressex Enterprise Centre Lincoln Road High Wycombe Bucks HP12 3RL | 01494 538858 | ||
| Comm-Tech Martam Ltd | Communications Centre Rollesby Road Martham Great Yarmouth, Norfolk NR29 4RU | 01493 748274 | ||
| Commtech110 Ltd | 9 Tegan Close Sutton, Surrey SM2 6GS | 07411 559 630 | ||
| CommuniCall (UK) Ltd | Richmond House 570-572 Eturia Road Newcastle-under-Lyme Staffordshire ST5 0SU | 07779 219078 | ||
| 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/ | |
| Communicate Information Ltd | ||||
| Communication Networks Ltd | ||||
| Communication Solutions Ltd | 1 Rhiw Road Colwyn Bay Conwy North Wales LL29 7TE | 0845 2700 672/3 | ||
| Communications Consultants Ltd | ||||
| Communications EBS Ltd | KBC House 42-50 Hersham Road, Walton on Thames KT12 1RZ | 0870 2 40 30 20 | ||
| Communications Interactive Management Ltd | 12 Shenval House Harlow, Essex CM20 2BD | 0845 127 9818 | ||
| Communications Networking Services (UK) | BT Regulatory Affairs, Postpoint 204, 5 Cheapside, London EC2V 6AA | 020 7356 5313 | 020 7356 4061 | |
| Communications One Ltd | 15 Bishops Grange Rugeley, Staffs WS15 3JY | 0844 854 6996 | ||
| 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 | ||
| Communio Networks Ltd | 1 Frogmore Road Hemel Hempstead, Herts HP3 9TG | 0870 190 0870 | ||
| Company Communication UK Ltd | 58 Buckinham Road Weston Industrial Estate West Super Mare North Somerset BS24 9BG | 0845 4021277 | ||
| Company Communications Ltd | Europa House Coppicemere Drive Crewe Business Park Crewe CW1 6GZ | 01270 503010 | ||
| Complete Business Solutions (NW) Ltd | 40 Devonshire Road, Bolton BL1 4PQ | 01204-848414 | ||
| Complete IT Systems | Gumption Business Centre Glydegate Bradford West Yorkshire BD5 0BQ | 0845 873 9631 | ||
| Complete Networks Ltd | The New Media Center 36-42 New Tythe Street Long Eaton Nottingham NG10 2DB | 0845 070 4440 | ||
| Complete Systems | Manor House Avenue Millbrook, Southampton SO15 0LF | Unit 9 | ||
| Completely Computers | http://www.completely-computers.co.uk/ | |||
| Compucare Computer Servicing Ltd | Petitor House Nicholson Road Torquay Devon TQ2 7TD | 01626 324 029 | ||
| Computacall | Station House Midland Road, Luton LU2 0HS | 01582 488885 | ||
| Computer Communications & Network Solutions Ltd | Letchford House Headstone Lane Harrow Middx HA3 6PE | 0870 436 1821 | ||
| Computer Systems UK Ltd | 15 Southmill Trading Centre Southmill Road Bishops Stortford Herts CM23 3DY | 0870 3866 222 | ||
| Computerease Ltd | 4 Bramble Street, Derby DE1 1HU | 0870 444 5414 | ||
| Computerised Business Systems Ltd | 554-556 Barton Road Stretford Manchester, M32 9TD | 0161 755 9441 | ||
| Coms.Com Ltd | 46 Cannon Street, London EC4N 6JJ | 020 7148 3000 | 020 7148 3001 | http://www.coms.com/ |
| ComsCall | http://www.comscall.com/ | |||
| 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 034 5020 | ||
| Comtec Telecom and Data Ltd | ||||
| Comtxt Ltd | Cavell House Stannard Place St Crispins Road Norwich NR3 1YE | 01603 821 013 | ||
| Comvista Ltd | Suite Six Buko Tower Dalton Road Glenrothes Fife KY6 2SS | 0845 130 2585 | ||
| Comxo TRIDrading Ltd | Pippin Grove 628 London Road Colnbrook Berkshire SL3 8QH | 01753 710 430 | ||
| Concept 2000 Ltd | 72 New Bond Street Mayfair, London W1S 1RR | 0870 199 3164 | ||
| Concept Coders | 105B The Big Peg 120 Vyse Street Hockley Birmingham B18 6NF | 0870 902 5580 | ||
| Concert Networks Ltd | 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/ | |
| Conduit Networks Ltd | 4th Floor 22 Buckingham Gate, London SW1E 6LB | 020 7100 5522 | ||
| Conexion Communications Ltd | The Coach House 1 Manor Courtyard Aston Sandford Bucks HP17 8JB | 01844 296 530 | ||
| Confabulate | ||||
| 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 | 0121 311 1890 | http://www.connaughtltd.co.uk/ |
| Connaught Communications Systems Ltd | 14 Systems House Reddicap Trading Estate, Sutton Coldfield, Birmingham B75 7BU | 0121 311 1010 | ||
| Connaught Telecommunications Ltd | ||||
| Connect B2B Ltd | Northfield House Northfield End Henley-on-Thames Oxfordshire RG9 2JG | 0800 881 8881 | ||
| Connect Business Systems Ltd | Connnect House Waterside Stoke Prior Bromsgrove B60 4FD | 08704 282828 | ||
| Connect Business Systems Telecommunications Ltd | Connect House Waterside Stoke Prior Bromsgrove B60 4FD | 01527 556363 | ||
| Connect Communications Group Ltd | Hertford House 1 Cranwood Street, London EC1V 9QP | 020 7950 3200 | ||
| Connect for Care Ltd | 1 Hylton Park Wessington Way, Sunderland SR5 3HD | 0800 0463297 | ||
| Connect Marketing (UK) Ltd | 1 Straiton View Straiton Business Parc, Edinburgh EH20 9QZ | 0131 440 7777 | ||
| Connect Telecom UK Ltd | 12 St James Square, London SW1Y 4RB | 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 | ||
| Connects Ltd | 17 Nobel Square Basildon, Essex SS13 1LP | 01268 726745 | ||
| Connexin Ltd | 15 The Elms Thicket Road Houghton Huntingdon, Cambridgeshire PE28 2FQ | 020 7148 8777 | ||
| Connexions 4 London | 22 St Peters Road Bournemouth, Dorset BH1 2LE | 01202 299799 | ||
| Connexon Telecom Inc | ||||
| Connexus Networks Ltd | Suite 2 Sperry House Bonds Mill Stonehouse Gloucestershire GL10 3RF | 0870 607 2121 | http://www.connexusnetworks.co.uk/ | |
| Consega Ltd | 7 Beechwood Road West Moors, Dorset BH22 0BN | 01202 873783 | ||
| 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 | ||
| Consortium (UK) Ltd | Parkway Offices Moss Road, Grimsby, North East Lincolnshire DN32 0LW | 0870 190 8900 | http://www.theconsortiumgroup.com/ | |
| Consortium Communications | http://www.theconsortiumgroup.com/ | |||
| Consulting Networks Ltd | Customer Services Team 40 March Road Wimblington Cambridgeshire PE15 0RN | 0870 036 1234 | ||
| Consulting Networks (CONNET) | http://www.consulting-networks.co.uk/ | |||
| Consumer Plus Ltd | 2 Hillmans Court Coleraines, Co. Londonderry BT52 2DF | 02870 002 066 | ||
| Contact Centre Communications Ltd | Bolney Place Cowfold Road, Bolney, West Sussex RH17 5QT | 01444 880 301 | ||
| Contact Scotland Ltd | ||||
| Content Guru | ||||
| Context Connect Inc | ||||
| Continuity Telecom Ltd | Coltwood House 2 Tongham Road Runfold, Farnham Surrey GU10 1PH | 020 8522 6000 | ||
| Converga Ltd | Spring Vale Works, Elland Road Brookfoot Brighouse West Yorkshire HD6 2RN | 01484 818 354 | ||
| Converged Communication Solutions Ltd | 35 Huntly Street, Aberdeen AB10 1TJ | 0800 8620 999 | ||
| Converged Technologies Ltd | 12 High Street Oliham, Hampshire RG29 1LG | 01256 393010 | ||
| 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 | ||
| Convergent Networks Ltd | ||||
| ConvergeOne Ltd | Office 9/10 Moorefield House 2a Moorside Road Swinton Manchester M27 0EW | 0161 793 9744 | ||
| Converse Telecom Ltd | Old Bank House 57 Church Street Staines Middx TW18 4XS | 0845 8739900 | ||
| Coralbridge Ltd | 13-15 Hunslet Road, Leeds LS10 1JQ | 0113 320 3040 | 0113 320 3041 | http://aql.com/ |
| Coralin Telecommunications Ltd | 114 Pinner Road, Northwood, Middx HA6 1BS | |||
| Core Communication Services Ltd | 31 Southampton Row, London WC1B 5HJ | 0808 130 0808 | 0808 130 0809 | http://www.coretel.co.uk/ |
| Core Telecom Ltd | Mazhar House, 48 Bradford Road, Stanningley, Leeds LS28 6DD | 0844 504 0000 | 0844 504 0001 | http://www.coretelecom.co.uk/ |
| Core Telecommunications International Ltd | 18 Edward Square, Bloomfield Avenue, Dublin 4. Ireland | 020 3171 1777 | http://www.coretelinternational.com/ | |
| Coretel Ltd | Unit 2 Woodsie Mews Clayton Wood Close, Leeds LS16 6QE | 0800 8030 747 | ||
| 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 | ||
| Corporate Business Telecoms | 31 Kings Exchange Tileyard Road, London N7 9AH | 020 7503 3000 | ||
| Corporate Communications Europe Ltd | ||||
| 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 | ||
| Correct Group Ltd | 10-14 Interlink House 73A Maygrove Road West Hampstead London NW6 2EG | 020 7372 4106 | ||
| Cortex Communications | Whitehall Emine Way Arrington, Cambridgeshire SG8 0AG | 0844 858 9223 | ||
| Cotswold Community Networks | http://www.cotswoldwireless.co.uk/ | |||
| Countrywide Farmers Energy | Utilities Dept Defford Earls Croome Worcs WR8 9DF | 01386 757 333 | ||
| County Autocall Ltd | 144 Church Road, Hove East Sussex BN3 2DL | 01273 740003 | ||
| CPS Connections | http://www.inwcomms.co.uk/ | |||
| CPS Telecom Ltd | 1st Floor 449-451 High Road, Willesden, London NW10 2JJ | 0870 801 6060 | http://www.cpstel.co.uk/ | |
| CPW Ltd | Technology House 9 Newton Place Charing Cross Glasgow G3 7PR | 08701 996 108 | ||
| Cranleigh Communications Ltd | Technology House Church Road, Haslemere, Surrey GU27 1NU | 01428 664 900 | ||
| Crazy Cheap Calls | http://www.crazycheapcalls.com/ | |||
| Cream Telecom Ltd | ||||
| Creative Telecoms Ltd | Studio 229 Great Gulidford Business Square 30 Great Guildford Street London SE1 0HS | 0871 222 7150 | ||
| Crescent Telecom Solutions Ltd | Unit 17 Business Innovation Centre, Enfield EN3 7XU | 0844 770 5551 | ||
| Crimzon Communications Ltd | Devonshire House Devonshire Lane Loughborough Leicestershire LE11 3DW | 01509 238233 | ||
| Criterion Systems Ltd | 116 Wellington Street Stockport, Cheshire SK1 1YH | 0161 429 4910 | ||
| Crosby Systems Ltd | Liverpool Innovation Park 2nd Floor, Baird House 360 Edge Lane Liverpool L7 9NJ | 0844 334 6000 | ||
| 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 | ||
| Crowthorne Associates Ltd | 8 Tavern Quay Rope Street, London SE16 7TX | 0870 300 7000 | ||
| Crystaline Solutions Ltd | 69-75 Boston Manor House Brentford, Middlessex TW8 9JJ | 0844 8464 222 | ||
| CSCM Ltd | 1B Swallowfield Courtyard Wolverhampton Road, Oldbury B69 2JG | 08431 668866 | ||
| CSD Ltd | 10 New Road Rayne Braintree Essex CM77 6TG | 01376 333820 | ||
| CT Networks Ltd | 3 The Maltings Wetmore Road Burton-on-Trent Staffordshire DE14 1SF | 01283 560 500 | ||
| Ctalk Ltd | 9 Parker Court Staffordshire Technology Park, Stafford ST18 0WP | 0845 120 7791 | ||
| CTI Telecom Ltd | 8 North Hills Brill, Bucks HP18 9TH | 01844 239 750 | ||
| CTS Group | http://www.cts-europe.com/ | |||
| Custard IT Ltd | 3 Innovate Mews Lake View Drive Sherwood Park Nottingham NG15 0DA | 0870 401 9966 | ||
| Customer Care Company Ltd | 40 Kay Brow Ramsbottom, Lancashire BL0 9AY | 0844 811 8900 | ||
| Customer Services Numbers Ltd | Office 36 88-90 Hatton Gardens, London EC1N 8PN | 0117 305 7617 | ||
| CWL Associates | 51 Granby Avenue Harpenden, Herts AL5 5QP | 07977 236 785 | ||
| CWNETWORKS Ltd | ||||
| Cyber Comms | http://www.cybercommsgroup.com/ | |||
| Cybermoor | http://www.cybermoor.org/ | |||
| Cygnet Telecom Ltd | Warwick House 41 Spring Road Hall Green Birmingham B11 3EA | 0870 787 4710 | ||
| cyta | http://www.cytauk.com/ | |||
| Cyta (UK) Ltd | 56A Haverstock Hill, London NW3 2BH | 020 7428 1000 | 020 7428 1005 | http://www.cytauk.com/ |
| D & G Consultancy Services Ltd | 18-19 Griffin House, Birmingham B3 1DW | 0800 088 4330 | ||
| D2See | ||||
| dabs.com plc | ||||
| Daisy Communications Ltd | Daisy House, Suite 1, Linred Road Business Park, Nelson, Lancs BB9 5SR | 0845 450 4520 | 0845 450 4521 | http://www.daisyplc.com/ |
| Daisy Wholesale Ltd | 4th Floor Easleigh House Upper Market Street Eastleigh SO50 9RD | 0330 100 1233 | ||
| Dalecom | Unit 1C Toll Bar Workshops Station Road Sedbergh, Cumbria LA10 5HA | 01539 622 300 | ||
| 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 | 01509 410420 | 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 | ||
| Dane Communications Ltd | Suite 2272 Office 6, Slington House Rankine Road Basingstoke RG24 8PH | 0844 412 0898 | ||
| Danemere Street Creative | ||||
| Danoli Solutions Ltd | 56 New Court Way, Ormskirk L39 2YT | 01695 576387 | ||
| Dantec Enterprises | ||||
| Daotec | ||||
| Dark Group | ||||
| Dash Telecom Ltd | 95 Wilton Road, Suite 3, London SW1V 1BZ | 020 3318 4204 | 020 7785 9184 | http://www.dashtelecom.co.uk/ |
| Data Telecom Ltd | Airport Business Centre 10 Thornbury Road Plymouth Devon PL6 7PP | 01752 546682 | ||
| Database for Business Ltd | Cato House 5 Talavera Court Darnell Way, Moulton Park Northampton NN3 6RW | 0870 442 4924 | ||
| Datacentres Ltd | Quay House Admirals Way, Docklands E14 9XG | 0845 862 0919 | ||
| Datacomms Technology Services | ||||
| Datacomms Warehouse | West Clayton Business Centre West Clayton, Chorleywood WD3 5EX | 01923 287301 | ||
| Dataflex Design Communications | ||||
| Dataflow Communications Ltd | ||||
| Datanet.Co.Uk Ltd | Aspen House Barley Way Ancells Business Park, Fleet Hampshire GU51 2UT | 0845 130 6010 | ||
| Datapro (proprietary) | ||||
| Datasharp UK Ltd | Woodland Court Truro Business Park, Truro, Cornwall TR4 9NH | 01872 266 666 | http://www.datasharpcomms.co.uk/ | |
| Datatech UK LTD | Brodesley Hall Alvechurch, Birmingham B48 7QA | 0845 0515151 | ||
| Datatel Networks Ltd | 19 Peel Road, Douglas Isle of Man IM1 4LS | 0870 333 4947 | http://www.datatel-networks.com/contactus.htm | |
| Datavoice Ltd | Bynea House Bynea Business Park, Llanelli SA14 9SU | 0870 870 5097 | ||
| Datavox | Saddleworth Business Centre Huddersfield Road, Delph OL3 5DF | 0800 0831173 | ||
| Daviker Ltd | City View House Union Street Ardwick Manchester M12 4JF | 0845 250 8060 | ||
| Davria Communications Ltd | 60 Bartley Road, Bensfleet, Essex SS7 4EL | 01268 799 312 | ||
| DBS | http://www.dbs-uk.co.uk/ | |||
| DCFM Telecom Ltd | DCFM Telecom Ltd 1 Bridge Street, Boston PE21 8QF | 01205 310644 | ||
| DCS Ltd | 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 | ||
| DCT Solutions | 167 High Street, Strood, ME2 4TH | 01634 226 580 | ||
| Deans Computer Services PLC | Boston Lodge High Street Boston Spa Wetherby LS23 6EA | 01937 541411 | ||
| Decorum Connect | ||||
| Deep Blue Networks | Unit 3B Rudgate Court Walton, Wetherby LS23 7BF | 0870 224 6200 | ||
| Definite Networks Ltd | Definite Networks Ltd The Nova Building, Herschel Street Slough Buckinghamshire SL1 1XS | 01753 701 807 | ||
| Dellmont Sarl | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | http://www.dellmont.com/ | |
| Delta - T Ltd | 3 Cook Close Brompton on Swale Richmond North Yorkshire DL10 7TY | 0800 0972324 | ||
| Delta Partners Ltd | 29 Harley Street, London W1G 9QR | 0844 493 0000 | ||
| Demon | 322 Regents Park Road, London N3 2QQ | 0800 027 3737 | http://www.demon.net/ | |
| Denovo Communication Ltd | 33 Estelle Road, LONDON NW3 2JX | 0207 424 9095 | ||
| Denwa Ltd | Lancashire Digital Technology Centre Bancroft Road Burnley Lancashire BB10 2TP | 01282 471857/0845 0761001 | ||
| Denwa Communications | http://www.phonesystems.co.uk/ | |||
| Design Communications (UK) Ltd | Orchard Barn Apple Mount Farm Thorpe Morieux Burt St Edmunds IP30 0NQ | 0844 811 79 79 | ||
| Design Communications Systems Ltd | ||||
| Design IT Solutions Ltd | Unit C, Little Bramshot Farm Cove Road, Fleet GU51 2RT | 01252 360480 | ||
| Design Telecommunications UK Ltd | 136 Central Road Worcester Park, Surrey KT4 8HT | 0800 008 7351 / 020 8329 9610 | ||
| DETEWE Ltd | ||||
| Devil7 Ltd | 90-92 Pentonville Road, London N1 9HS | 0870 777 5767 | ||
| Diacom UK Ltd | Unit A The Scotlands London Road Coalville Leicester, Leicestershire LE67 3JJ | 01530 274050 | ||
| 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 master | http://www.eclipsetel.co.uk/ | |||
| Dialect Telecom Ltd | Tithe Barn Blisworth Hill Farm Stoke Road Blisworth, Northants NN7 3DB | 01604 768770 | ||
| DialWise | http://www.dialwise.co.uk/ | |||
| Diamond Communications | ||||
| Diamond Communications (NE) Ltd | 1 St Beadle's, Station Road East Boldon,, Tyne and Wear NE36 0LE | 0191 5193700 | ||
| Diazone Computer Services | Exeter House 1 Amor Way Letchworth Herts SG6 1UG | 01462 489 700 | ||
| Difference Corporation Ltd | Merlin House Langstone Business Park, Newport NP18 2HT | 0844 4931100 | ||
| Digicomm BCS Ltd | 468 Halliwell Rd, Bolton Lancashire BL1 8AN | 0870 444 6540 | ||
| Digiquip Group Ltd | Unit 10 Northbrook Business Park Northbrook Road Worthing West Sussex BN14 8PQ | 0808 178 2769 | http://www.digiquip.co.uk/ | |
| Digital Communication Systems Ltd | 7 - 8 Benton Terrace Sandyford Road, Newcastle Upon Tyne NE2 1QU | 0191 209 4444 | ||
| Digital ip | http://www.digital-ip.com/ | |||
| Digital Mail | http://www.digitalmail.com/ | |||
| Digital Phone Company Ltd - | 16 Southgates Road Great Yarmouth, Norfolk NR30 3LJ | 0845 000 6000 | ||
| Digital Telecom Airtime | Unit 28, Salford University Business Park leslie House Way, Salford M6 6AJ | 0845 873 8994 | http://www.dtairtime.co.uk/ | |
| Digital WWW Ltd | 29 Kestrel Avenue, London SE24 0ED | 020 7147 7001 | ||
| Digitech Solutions Global | ||||
| Digitel Direct Ltd | Holmfeild Mills Holdsworth Road, Halifax HX3 6SN | 08456 522 533 | ||
| 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 | ||
| Digiweb Europe Ltd | Building 3 Chiswick Park 566 Chiswick High Road London W4 5YA | 020 8849 5559 | ||
| Direct Communications International | Europa House Church Street, Old Isleworth, Middlesex TW7 6DA | 0870 770 9901 | ||
| Direct Marketing Solutions Ltd | ||||
| Direct Response Ltd | 9 Winchester House Kennington Business Park Cranmer Road London SW9 6EJ | 0870 414 9000 | ||
| Direct Telecommunications Systems Ltd | 2D Belle Walk Moseley Birmingham West Midlands B13 9DF | 0121 552 6624 | ||
| Direct Telecom Network Ltd | Junction House High Street, Beighton S20 1ED | 0844 598 4488 | ||
| Direct Telecommunications (London) Ltd | 5 Drakes Courtyard 291 Kilburn High Road, London NW6 7JR | 020 7328 0040 | ||
| Direct Telecommunications Systems Ltd | 16 Commercial Road Skelmanthorpe, Huddersfield HD8 9DA | 01484 867 867 | ||
| 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 | ||
| Discount Dial | http://www.discountdial.co.uk/ | |||
| Diva Telecom Ltd | 4100 Park Approach Thorpe Park, Leeds LS15 8GB | 0844 873 23 53 | http://www.divatelecom.co.uk/ | |
| Diverse Systems Ltd | Unit 9, Southmill Trading Centre Bishops Stortford, Herts CM23 3DY | 0808 1296666 | ||
| 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 | ||
| DocForPC Ltd | 8 Lombard Road Wimbledon, London SW19 3TZ | 08000 283 166 | ||
| Docklands Telecom Centre Ltd | 9 Ashton Gate, Ashton Road, Romford RM3 8UF | 01708 383222 | http://www.dtcdirect.co.uk/ | |
| Dolphin Com Ltd | P.O. Box 157, Nantwich, Cheshire LW5 7XD | 0800 195 2544 | ||
| Dolphin Communication Solutions Ltd | 509 Katherine Road Forest Gate, London E7 8DR | 020 8586 6000 | ||
| Dot Comm Consultancy Ltd | ||||
| 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/ | ||
| DrayTEL | http://www.draytel.org/ | |||
| DRD Communications Ltd | Connect House, 21 Willow Lane, Mitcham, Surrey CR4 4NA | 0800 1957978 | http://www.drd.co.uk/ | |
| Dropjaw UK Ltd | 20 Main Street Kimberley, Nottingham NG16 2LL | 0844 770 3806 | ||
| Drum Communications Ltd | Chase Mill Winchester Road Bishops Waltham Hampshire SO32 1AH | 08444 123242 | ||
| Drumbeat Communications Ltd | Rowan House Sheldon Business Park Chippenham Wiltshire SN14 0SQ | 01249 467400 | http://www.drumbeatcomms.co.uk/ | |
| DSL Plus Ltd | Unit 1, Prospect Court Courteenhall Road Blisworth Northampton NN7 3DG | 0844 412 0566 | ||
| DTC Direct Ltd | 9 Ashton Gate, Ashton Road, Romford RM3 8UF | 01708 383222 | http://www.dtcdirect.co.uk/ | |
| Dtx Telecommunications Ltd | Unit 24 President Buildings Savile Street East, Sheffield S4 7UQ | 0845 125 61 61 | ||
| du Pré plc | Vo-Tec Centre Hambridge Lane Newbury Berkshire RG14 5TN | 01635 555 555 | ||
| Dune Tele Ltd | Suit 10, Eaton Place Business Centre 114 Washway Road Sale, Cheshire M33 7RF | 0161 374 4789 | ||
| DuoCall Communications Ltd | Building AO6 Magna 34 Business Park Temple Road Rotherham S60 1FG | 08456 761000 | ||
| Duonox Ltd | The Surrey Technology Centre Unit 23, 40 Occam Road Surrey Research Park Guildford, Surrey GU2 7YG | 0800 5999501 | ||
| Du-Tel Ltd | ||||
| DV02 Ltd | 4 Acorn Business Centre Northarbour Cosham Portsmouth PO6 3TH | 0844 770 99 55 | ||
| DVM Solutions Ltd | 23 Mauncer Drive, Sheffield S13 7JE | 08452 255883 | ||
| Dwarf Ltd | 60 Regent Place, Birmingham B3 1UG | 0121 236 1888 | ||
| DXI Easycall | ||||
| DXI Networks Ltd | Service Management Centre DXI Networks Limited 24 Chiswell Street London EC1Y 4TY | 020 7579 8299 | ||
| DXI Telecom Ltd | 21 New Street, London EC2M 4HR | |||
| Dynamic Telecom Ltd | ||||
| Dynamics Computer Consultants Ltd | 5e Longrock Industrial, Estate, Penzance Cornwall TR20 8HX | 01736-888123 | ||
| E164 | ||||
| E7even UK Ltd | Suite C9 Powerhub Business Centre St. Peters Street Maidstone ME16 0ST | 0870 224 5122 | ||
| Eagle Communication Networks Ltd | Eagle House, No 12 Haslemere Gardens Hayling Island Hampshire PO11 9SD | 02392 329901 | ||
| Easi-Call UK Ltd | ||||
| Easi-tel Ltd | 15 Riverside Studios Amethyst Road Newcastle Business Park Newcastle-Upon Tyne NE4 7YL | 0870 789 7788 | ||
| East Devon IT Ltd | Warwick House 30 High Street Sidmouth Devon EX10 8EA | 01395 493000 | ||
| East Midlands Online Ltd | Suite 4 Onsite Lodge Mansfield Road Eastwood Nottingham NG16 3AR | 0843 330 2194 | ||
| East Point Telecom Ltd | 15 Waveney Road Lowestoft Suffolk NR32 1SP | 01502 532732 | ||
| East Riding Telecom Ltd | 4100 Park Approach Thorpe Park, Leeds LS15 8GB | 08445 796979 | ||
| Easy Networks Ltd | Unit 1.1 Central Point Kirpal Road, Portsmouth PO3 6FH | 023 9277 8800 | ||
| Easy Telecom | http://www.easy-tele.com/ | |||
| Easy Utilities Ltd | Suite 6, Bridgewater House, Surrey Road, Nelson BB9 7TZ | 0844 4120002 | ||
| Easy-Dial | PO Box 8213, Chiswick, London W4 3WR | 020 8987 9552 | 020 8747 0382 | http://www.easy-dial.com/ |
| Easynet Ltd | 5 Thomas More Street Thomas More Square, London E1W 1YW | 0207 0325000 | ||
| Easynet Global Services | Chancellor House, 5 Thomas More Square, London E1W 1YW | 020 7032 5200 | 020 7032 5335 | http://www.easynet.com/ |
| Easytone Telecom (UK) Ltd | 1st Floor 12-13 Little Newport Street, London WC2H 7JJ | 0207 437 7123 | ||
| EBC Group (UK) Ltd | 221 Hagley Road, Halesowen B63 1ED | 0121 585 4400 | ||
| EBS Europe Ltd | 3a Dublin Meuse, Edinburgh EH3 6NW | 07789 434 106 | ||
| EC Computers Ltd | The Laurels Business Centre, Stone Berkeley GL13 9LD | 0845 070 8010 | ||
| Ecam Solutions Ltd | 289/293 Ballards Lane, London N12 8NP | 0870 080 2333 | ||
| Echo Network Services | Echo House 27-33 Burr Road, London SW18 4SQ | 020 8870 4000 | ||
| Eclipse Networking Ltd | Portland House Longbrook Street Exeter Devon EX4 6AB | 0845 122 4333 | ||
| Eclipse Internet | Osprey House, Osprey Road, Exeter EX2 7JG | 0845 1224 333 | http://www.eclipse.net.uk/ | |
| Eclipse Tel | http://www.eclipsetel.co.uk/ | |||
| Eclipse Telecom Networks Ltd | ||||
| Eco IP Communicayions Ltd | The Bristol Office 2 Southfield Road, Bristol BS9 3BH | 0117 911 2992 | ||
| Ecocall Ltd | Ver House 23-25 High Street, Redbourn, Hertfordshire AL3 7LE | 01582 793 007 | ||
| Economy Calls | Churchill House Churchill Way, Cardiff CF10 2HH | 0845 234 0200 | ||
| Ecosse Group Ltd | Unit 7G Anniesland Ind. Estate Netherland Road Glasgow G13 1EU | 0141 950 2640 | ||
| Ecotel Networks Ireland Ltd | 6 Greenburn River Mews 23 Ballynure Road Ballyclare Northern Ireland BT39 9AG | 08444 41880 | ||
| ECS Telecommunications Ltd | 258 Hackney Road, London E2 7SJ | 0870 145 8300 | ||
| ED Communications Ltd | Enterprise House Henfield Road Small Dole West Sussex BN5 9XH | 0870 010 7710 | ||
| Eden Business Support Ltd | Gibbs House Kennel Ride Ascot Berkshire SL5 7NT | 0870 224 0445 | ||
| Eden Communications | 25 High Street, Edenbridge, Kent TN8 5AB | 01732 865313 | 01732 863013 | http://www.edencomms.co.uk/ |
| Edge Solutions Ltd | http://www.edgesolutions.ltd.uk/ | |||
| Edge Telecom | http://www.edgetelecom.co.uk/ | |||
| Edinburgh Network Technologies Ltd | 12 Dock Place, Edinburgh EH6 6LU | 0845 119 9970 | ||
| Edirect Computers Ltd | ||||
| eemits Communications | http://www.eemits.co.uk/ | |||
| Effective Communication Solutions Ltd | 5 Gladstone Road, Liverpool L19 1RR | 08450 515 030 | ||
| EFL Telecom Ltd | 5 Thursday Street Haydon End Swindon Wiltshire SN25 1RG | 0844 418 0188 | ||
| EGN BV | 26 Chemin de Jionvile - case 31, 1216 Ciontrin, Geneva, Switzerland | +41 22 710 01 11 | ||
| E-Guide | ||||
| Eight Networks Ltd | Skirsgill Business Park, Penrith CA11 0FA | 0845 456 9889 | ||
| 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 NI Ltd | Forsyth House, Cromac Square, Belfast BT2 8LA | 028 9000 2100 | 028 9000 2150 | http://www.eircomni.co.uk/ |
| Eircom UK Ltd | 183 Marsh Wall, South Quay Plaza II, London E14 9SH | 020 7517 6000 | ||
| Eiretel | ||||
| 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 | ||
| elephant sevices group | http://www.elephantservices.net/ | |||
| Elephant Talk Communications PRS U.K | ||||
| Elite Business Systems UK Ltd | 26-27 Chartergate Quarry Park Close Moulton Park Northampton NN3 6QB | 0870 899 3355 | ||
| Elite Calls (UK) Ltd | The Lockhouse Frogmore Road Aspley, Hemel Hempstead Herts HP3 9RW | 0870 0665651 | ||
| Elite Telecom | http://www.elitetele.com/ | |||
| Elite Telecoms (Dorset) Ltd | Suite 2, Cleveland Court Cleveland Road Bournemouth Dorset BH1 4QB | 01202 392 970 | ||
| EliteCalls | http://www.elitecalls.com/ | |||
| Elitetele.com | Rainford Hall Crank Road Crank St Helens, Merseyside WA11 7RP | 0870 990 8000 | ||
| Elphinstone Communications Ltd | 295 Fenwick Road, Giffnock, Glasgow G46 6UH | 0141 620 3000 | ||
| Emedia Telecom | 32 Grove Place, Bedford MK40 3JJ | 0845 226 0260 | ||
| Empanda | ||||
| Empha Tech Ltd | ||||
| Emtel Ltd | Mercury House Shipstones Business Centre Northgate Nottingham NG7 7FN | 0845 450 4556 | ||
| Enable Communications Ltd | 27 Waters Edge Canterbury, Kent CT1 1WX | 05602 963598 | ||
| Enbel | ||||
| Endrick IT | 9a Bankers Brae Balfron, Glasgow G63 0PY | 0844 8009188 | ||
| Energy Telecom Ltd | Freepost Energy Telecom PO Box 6918, Derby DE1 9EL | 0870 755 6699 | ||
| Enhanced Network Services Ltd | Trident One Styal Road, Manchester M22 5XB | 020 3326 4231 | ||
| Enlinea Ltd | 278 St Vincent Street, Glasgow G2 5RL | 0141 285 6677 | ||
| Enron Direct Ltd | ||||
| Entanet International Ltd | Stafford Park 6 Telford, Shropshire TF3 3AT | 08707 709 394 | ||
| Entanet International | Stafford Park 6, Telford, Shropshire TF3 3AT | 0870 770 9656 | ||
| Enterprise Carrier Services Ltd | ||||
| Entigy Ltd | Imperial Chamber Prince Albert Street Crewe Cheshire CW1 2DX | 01270 212199 | ||
| Entrepreneur.com | ||||
| Entropie Ltd | 18 Walker Avenue Wolverton Mill East, Milton Keynes MK12 5TW | 0845 3305539 | ||
| Envy Telecom LTD | 169 New London Road, Chelmsford Essex CM2 0AE | 0871 2241112 | ||
| E-Partner Telecom Ltd | Marathon House Olympic Business Park Drybridge Road Dundonald,Kilmarnock KA2 9AE | 01563 852230 | ||
| EPN Technology Cheshire Ltd | Riverside Mountbatten Way Congleton Cheshire CW12 1DY | 01782 479 522 | ||
| Equate Business Solutions Ltd | Suite 13 Pontsychan House Abersychan Industiral Estate Abersychan, Pontypool NP4 7BA | 0845 085 0052 | ||
| Equate Group Plc | 3 Watermill Way Weston Turville, Bucks HP22 5SR | 01296 612 427 | ||
| Equip Communications Ltd | Unit 8F Alder Road West Chirton (North) Ind Est NE29 8SD | 0191 270 8000 | ||
| 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 | 020 8446 7010 | http://www.equitalk.co.uk/ |
| Equitalk.co.uk Ltd | Innovation Centre Heyford Park Upper Heyford Oxon OX25 5HD | 0800 161 3837 | ||
| Equity Networks Ltd | Unit 3 Union Park Packet Boat Lane Uxbridge Middlesex UB8 2GH | 0845 504 5174 | ||
| j2 Global Ireland Ltd | Unit 3, Woodford Business Park, Santry, Dublin 17, Ireland | 020 3070 1000 | http://www.ereceptionist.co.uk/ | |
| ESAT Telecommunications Ltd | c/o Norton Rose, Kemson House,PO Box 570 Camomile Street, London EC3A 7AN | |||
| Esendex | ||||
| e-Shop UK Ltd | ||||
| Espirit Telecom UK Ltd | Minerva House, Valpy Street, Reading
RG1 1AR |
0118 951 4000 | 020 7666 6001 | http://www.esprittele.com |
| 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 | ||
| Esse Solutions | http://www.essesolutions.com/ | |||
| Essensys Ltd | 16th Floor Centre Point 103 New Oxford Street, London WC1A 1DD | 020 3102 5252 | ||
| ETC Telecom | ||||
| E-Tel Systems | 1 Cwrt Pencoedtre Barry, South Glamorgan CF62 9BS | 01446 741530 | ||
| Ethcom Ltd | http://www.ethcom.org/ | |||
| Ethernet Communications | Unit 9, Limefield House Limefield Brow, Bury BL9 6QS | 0161 7633131 | ||
| Ethos Voice & Data - EVAD | 124-128 City Road, London EC1V 2NJ | 020 7253 4482 | ||
| ETS Communications Ltd | Wakefield Road Horbury Wakefield West Yorkshire WF4 5HQ | 01924 237000 | ||
| euCALL | http://www.euphony.com/home/eucall_home.aspx | |||
| Euphony Communications Ltd | Belvedere, Basing View, Basingstoke RG21 4HG | 01256 857000 | 01256 857103 | http://www.euphony.com/ |
| EurISP | 6 Queensgate, Huddersfield HD1 2RD | 0871 2202233 | ||
| Eurolink Telecom Ltd | Swan House Bonds Mill Estate Stonehouse Glos GL10 3RF | 08450 755 500 | http://www.eurolinktelecom.com/ | |
| Europa Network (UK) Ltd | Warwick House 41 Spring Road Hall Green Birmingham B11 3EA | 0870 756 0646 | ||
| Europa.net Ltd | The Rectory Stoneham Park, Eastleigh S050 9NW | 023080 646 305 | ||
| European Communications | Communications House 17 Chesham Avenue Flixton Manchester M41 8SS | 08709 500 074 | ||
| European Telecom Solutions | PO Box 104, Neath SA11 2WZ | 01639 814 800 | ||
| European Utility Management | Liberty House 222 Regents Street, London W1B 5TR | 0207 0601900 | ||
| European Wireless Corporation Ltd | 17 Spikesbridge Road, Middlesex UB1 2AS | 020 8917 9226 | ||
| Euros UK Ltd | 21 Cornwall Road Industrial Estate Cornwall Road Smethwick West Midlands B66 2JS | 0121 314 3144 | ||
| Eurotek West Ltd | Dipaola House Delemare Road Cheshunt Herts EN8 9SH | 01992 240 030 | ||
| Eurotel Communications Ltd | HB House Foleshill Enterprise Park Courtaulds Way Coventry, CV6 5NX | 0870 750 9999 | ||
| Eurowide Telecoms | ||||
| Eurowise Dotcom | ||||
| Everlast Systems Ltd | 81 High Street Salisbury House Potters Bar, EN9 5AS | 0845 2000512 | ||
| Everthing TC Ltd | Everything TC Limited Daleside House Park Road East Calverton NG14 6LL | 01159 655354 | ||
| everymessage | http://www.everymessage.net/ | |||
| Everything Everywhere Ltd | Hatfield Business Park, Hatfield, Herts AL10 9BW | 0845 412 5000 | http://everythingeverywhere.com/ | |
| Evolution Voice and Data PLC | 36 Great St. Helens, London EC3A 6AP | 020 7628 2800 | ||
| Evolve Telecom Ltd | Suite 1-2 Chalkwell Lawns 648-656 London Road Westcliff on Sea Essex SS0 9HR | 0870 333 3734 | ||
| Evoxus | http://www.evoxus.com/ | |||
| EW Communications Ltd | Linton House, Highgate Road, London NW5 1RS | 020 7428 7733 | 020 7428 7701 | http://www.ewcoms.com/ |
| Exa Networks | 27-29 Mill Field Road Cottingley Business Park, BD16 1PY | 0845 145 1234 | ||
| Excalibur Communications Ltd | 6 Hill Road Clevedon, N Somerset BS21 7NE | 0845 0179 535 | ||
| Excel Communications (UK) Ltd | ||||
| Excel Telecom Ltd | http://www.exceltelecom.co.uk/ | |||
| Excel Telecommunications Network Ltd | Greenlands Business Centre Studley Road, Redditch B98 0NZ | 01527 527 747 | ||
| Excell Group | http://www.excellgroup.com/ | |||
| Excell Network Solutions Ltd | http://www.excellgroup.com/ | |||
| Excellent Telecom Ltd | 15 Titan Way Britannia Enterprise Park Lichfield Staffs WS14 9TT | 01543 305050 | ||
| 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 | ||
| Exchange UK | ||||
| Exchange XT | http://www.exchangext.com/ | |||
| Exec Sys Communications Ltd | 130-142 Goswell Road, London EC1V 7DY | 0845 506 784 | ||
| Executel Ltd | West Wing, Cameron House, Metro Centre, Gateshead NE11 9XW | 0191 493 1111 | 0191 493 1100 | http://www.executel.co.uk/ |
| Expanse (UK) Communications Ltd | The Old Rectory Church Road Sevington, Ashford Kent TN24 0LD | 0870 242 1718 | ||
| Expedite Total Office Solutions Ltd | 9 Lynx Crescent, Weston Super Mare BS24 9DJ | 01934 422 222 | ||
| Exponential-e Ltd | 25 camperdown Street, London E1 8DZ | 020 7096 4114 | ||
| Express Telephony Ltd | 9 Perowne Way Puckeridge, Ware SG11 1SZ | 0800 052 2323 | ||
| Exstream Networks Ltd | ||||
| Eyetel | ||||
| EZ Telecoms Ltd | 40 The Green Peterborough, Cambs PE4 6RX | 01733 750 544 | ||
| eZe-Talk Ltd | Kingsley House, Eaton Street, Crewe CW2 7EG | 0845 017 9878 | 0845 017 9879 | http://www.eze-talk.com/ |
| F H Brown Office Technologies Ltd | ||||
| F1 Comms Ltd | 22 Chaldon Road Caterham-on-the-Hill Caterham Surrey CR3 5PE | 020 7101 7500 | ||
| Fab Spider | Ripponden Mill Mill Fold, Ripponden HX6 4DH | 01422 825712 | http://www.fabspider.com/ | |
| Fabric Technologies | 222 Grays Inn Road, London WC1X 8HB | 020 7841 6700 | ||
| Face Value Ltd | Charles House Toutley Industrial Estate, Berkshire RG41 1QN | 0118 977 1010 | ||
| Facilities Management | Saddleworth Business Centre Huddersfield Road, Delph OL3 5DF | 01457 820022 | ||
| Fast247 | http://www.fast247.co.uk/ | |||
| fasthosts | http://www.fasthosts.co.uk/ | |||
| Fastnet International Ltd | Shaftsbury Court 95 Ditchling Road Brighton East Sussex BN1 4ST | 01273 662 888 | ||
| 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 | 01442 540248 | http://www.faxtastic.co.uk/ |
| FCP Communications | 19-20 Bourne Court Southend Road Woodford Green Essex IG8 8HD | 01279 60 32 91 | ||
| Fenix Networks Ltd | Unit 3 Montgomery Business Park 38 Montgomery Road Belfast BT6 9HL | 028 90400400 | ||
| Feranti Trading Ltd | 486 Cheetham Hill Road Cheetham Hill, Manchester M8 9JW | 0871 5219 500 | ||
| FHTM Ltd | United Business Centres Plc Midsummer Court 314 Midsummer Boulevard Central Milton Keynes MK9 2UB | 0870 141 9619 | ||
| Fibernet (UK) Ltd | Olympus House, Calleva Park, Aldermaston, Berks RG7 8SA | 0118 881 9122 | ||
| Fibrestream Ltd | Owthorne Manor Withernsea, East Yorkshire HU19 2AT | 01482 778554 | ||
| FibreWifi | http://www.fibrewifi.com/ | |||
| Fidelity Group Ltd | Newton House Newtown Road Henley on Thames OXON RG9 1HG | http://www.fidelity-group.co.uk/ | ||
| Finarea SA | Viale Carlo Cattaneo 1, Lugano 6900, Switzerland | +41 91 922 5431 | +41 91 922 5433 | http://www.finarea.ch/ |
| Fincomp Services Ltd | 103 Woodland Way Winchmore Hill, London N21 3PY | 020 8099 7301 | ||
| Fineline Communications Ltd | Third Melrose Roxburghshire, TD6 9DR | 08700 505 015 | ||
| Fintech Consultants Ltd | 5 St John's Lane, London EC1M 4BH | 020 7549 1654 | ||
| FIO Telecom | Intershore Suites, Vernon House, Sicilian Avenue, London WC1A 2QS | 020 3026 7000 | 020 3026 7038 | http://www.fiotelecom.com/ |
| Fire Telecom Ltd | ||||
| Firefly Enterprises Ltd | Unit 12 Beckford Business Centre Beckford Street, Hamilton ML3 6NN | 0870 141 7114 | ||
| First Active Communications Ltd | ||||
| First Call Communications Ltd | 3-4 Byron Place, Clifton Bristol BS8 1JT | 0117 952 9189 | ||
| First Choice Communications Ltd | Oak Bank Business Centre Mickley Hall Lane Broomhall Nantwich, Cheshire CW5 8AH | 01270 440 141 | ||
| First Choice Mobiles Ltd | Southern Gateway Speke Boulevard, Liverpool | 01514 865 222 | ||
| First European Telecom Ltd | Ramsay Court 111 Ecclesall Road South, Sheffield S11 9PH | 0800 195 9200 | ||
| First Global Telecom Ltd | Tottenham Green Enterprise Centre Town Hall Approach, London N15 4RX | 0870 224 1120 | ||
| First Group Dynamics Ltd | Palehouse Barn, Palehouse Common Framfield Uckfield East Sussex TN22 5QY | 01825 890 099 | ||
| First Group Dynmics | http://www.firstgd.co.uk/ | |||
| First Line Support Ltd | Hamilton House 1B Howard Street, Oxford OX4 3AY | 01865 260 220 | ||
| First National Telecom Services Ltd | 3rd Floor The Argyle Centre York Street Ramsgate CT11 9DS | 0800 097 7777 | ||
| First Number | http://www.wavecrestcom.com/ | |||
| First Office Systems Ltd | 14-16a Albion Road Royal Tunbridge Wells, Kent TN1 2NH | 01892 676000 | ||
| First Rate Telecom Ltd | 1st Floor Kent House Romney Place Maidstone Kent ME15 6LH | 0844 779 2250 | ||
| First Search Consultancy Ltd | Floor 5 28-32 Albert Road Middlebrough Cleveland TS1 1QD | 0844 745 1111 | ||
| First Solution Technologies Ltd | County House St Mary's Street, Worcester WR1 1HB | 01905 729992 | ||
| First Telecom | http://www.firsttelecom.com/ | |||
| First Utility Ltd | 19 South Audley Street, London W1K 2NU | 0845 215 1640 | http://www.breathe.com/talk/ | |
| First Voice Group Ltd | ||||
| First:telecom | PO Box 4360, Warwick CV34 9DB | 0845 215 1640 | http://www.firsttele.com/ | |
| First:telecom Packages | http://www.firsttele.com/ | |||
| First:telecom Top Up and Talk | http://www.firsttele.com/ | |||
| First4Telecoms Ltd | ||||
| Firstsound Ltd | Forge House, 39/41 Cambridge Road, Stanstead, Essex CM2 8BX | |||
| Fixed Line Solutions Ltd | 7 Hunter Street, Chester CH1 2HR | 0844 579 1581 | ||
| Fizz Telecom Ltd | CBS House, The Courtyard Alban Park Hatfield Road St Albans, Hertfordshire AL4 0LA | 0845 672 7272 | ||
| Flat Rate Telecom | 46 Clerkenwell Close, London ECR1 0AT | 0845 223 7500 | ||
| Flat Telecom | Russell House 149 High Street Edgware, Middlessex HA8 7LW | 0871 950 6005 | ||
| Fleet Telecom Ltd | 28 Church Field Snodland, Kent ME6 5AR | 0844 822 3949 | ||
| FleXtel Ltd | FleXtel House, The Commons, Sandbach,
Cheshire CW11 1EG |
0870 3210 1000 | 0870 3210 1001 | http://www.flextel.co.uk/ |
| 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 | ||
| Floe Networks | ||||
| Floe Telecom | ||||
| Floren | ||||
| Floyds Office Equipment Ltd | 139 Lynchford Road Farnborough, Hants GU14 6HD | 0844 8269 654 | ||
| FLR Spectron Ltd | Unit 4 Orpington Trade Centre, Murray Road, Orpington, Kent BR5 3SS | 0845 899 9900 | http://www.flrs.co.uk/ | |
| Fluenta | ||||
| Fluid Network Solutions Ltd | Communications House, Unit 11 Keel Row, The Watermark, Metro Riverside, Gateshead NE11 9SZ | 0845 345 4313 | 0845 345 4314 | http://www.fluidns.co.uk/ |
| Fluidata Ltd | 300 Kensal Road, London W10 5BE | 0845 868 7848 | http://www.fluidata.co.uk/ | |
| Flying Dragon Ltd | 1 Kings Gate 111 The Drive, Hove BN3 6FU | 01273 205435 | ||
| Flying Start Brokers Ltd | 97 Greenwood Ave, Blackpool Lancashire FY1 6PR | 01253 769720 | ||
| FMI Ltd | Voice Support Queens House 1 Leicester Place London WC2H 7BP | 020 7758 0848 | ||
| FMS Solutions Ltd | ||||
| Focus 4 U Ltd | Unit H, Hove Tech Centre St Josephs Close Hove East Sussex BN3 7ES | 0845 450 5225 | ||
| Focus 4U Ltd | Hove Tech Centre, St Joseph's Close, Hove East, Sussex BN3 7ES | 01273 827410 | 01273 827411 | http://www.focus4u.co.uk/ |
| Focus Group | Europa House, Southwick Square, Southwick, West Sussex BN42 4FJ | 0800 054 6100 | 0844 692 8001 | http://www.focus-grp.co.uk/ |
| Focus4U | http://www.focus4u.co.uk/ | |||
| Foehn Ltd | Marcar House Parkshot Richmond Surrey TW9 2RG | 020 8940 7919 | ||
| Fokus Network Solutions Ltd | The Studio Quarry Hill Box Wiltshire SN13 8LP | 08713 101015 | ||
| Fone and Mobile | 2 Kendal Close, Redditch B98 0QH | 0845 4673 857 | ||
| Forces Communications Ltd | Bradley Court Off Maple Road, Castle Donington DE74 2UT | 0845 270 2476 | ||
| Forces Networks Ltd | Office 1 The Barns Caddsdown Ind Park Bideford Devon EX39 3RD | 01237 426559 | ||
| Forest Telecommunications Ltd | 5 Price's Road Chinley, Derbyshire SK23 6AB | 0844 277 8480 | ||
| Forever Systems Ltd | 120 Holland Road Sutton Coldfield, West Midlands B72 1RE | 0121 355 5735 | ||
| Formjet Plc | Innovation House Windsor Place Faraday Road Crawley RH10 9TF | 0870 606 1670 | ||
| Fourteen Network Services Ltd | 31 Church Road Northenden, Manchester M22 4NN | 01691 661046/07850 410924 | ||
| FP Telekom Ltd | Hayleys Manor Upland Road, Epping, Essex CM16 6PQ | 01992 563 840 | http://www.fptelekom.co.uk/ | |
| Fractal Telecom Services Ltd | 240 Branston Road, Burton Upon Trent DE14 3BT | 0870 410 8989 | ||
| FreeCall | http://www.freecall.com/ | |||
| FreeCall UK Ltd | ||||
| FreeClix Ltd | 110 Prince of Wales Road, Norwich NR1 1NS | 0870 987 3000 | ||
| Freecom Communications Ltd - | 29th Floor, 1 Canada Square Canary Wharf London E14 5DY | 0870 8701818 | ||
| 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 Technology | Wixford Business Park George Elm Lane, Alcester B50 4JS | 01789 772 009 | ||
| Freedom Telecom | ||||
| Freedom To Surf | ||||
| FreedomCall Ltd | Hampton House, High Street, East Grinstead, West Sussex RH19 3AW | 0800 279 6050 | 0800 279 6050 | http://www.freedomcall.co.uk/ |
| FreedomConnect Ltd | Olds Approach Tolpits Lane, Watford, Hertfordshire WD18 9RX | 01923 654 097 | ||
| Freedomtel Ltd | 18 Hanover Square, London W1S 1HX | 020 3008 2566 | ||
| Freeman Telecom Ltd | 24 Beatrice Road Southsea, Hampshire PO4 0JY | 02392 818 190 | http://www.freemantelecom.com/ | |
| Freeola | http://www.freeola.com/ | |||
| Freephone Numbers | ||||
| Freestyle Communications | 37 Alexander Gibson Way, Motherwell ML1 3FA | 0870 403 0121 | ||
| Freetime Communications Ltd | http://www.freecomm.co.uk/ | |||
| Freshtel UK | ||||
| Frontier Systems | Warwick House 9 Warwick Street, London W1B 5LY | 020 7440 1811 | ||
| Frontier Voice and Data Ltd | Longleys Rye Road Sandhurst, Cranbrook Kent TN18 5PG | 0845 301 4100 | ||
| FSG Technologies Ltd | 1st Floor, Cuffley Motor Co Sopers Road Cuffley Herts EN6 4RY | 020 7965 0490 | ||
| FTTC Ltd | 4 Queen Street Uppingham, LE15 9QR | 01572 858858 | ||
| Fubra | ||||
| Fujitsu Services Ltd | 51 Homer Road Solihull 6 Homer Road West Midlands B91 3QJ | 0118 975 7564 | ||
| Funview | ||||
| Fused Networks | ||||
| Fused Webcalls | Kilburn House, Manchester Science Park, Manchester, M15 6SE | 0845 456 1116 | 0845 456 1171 | http://www.fused-webcalls.co.uk/ |
| 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 | ||
| Future Data Networks Ltd | Trafalgar House Trafalgar Wharf 223 Southampton Road Hampshire PO6 4PY | 02392 808 100 | ||
| Future Numbers | ||||
| 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 | ||
| Futures Capital Ltd | ||||
| Futuristic Telecoms Ltd | 1 Montague Road, Slough Berkshire SL1 3RP | 0844 571 9898 | ||
| G3 Network Services Ltd | 3rd Floor Harling House 47-51 Great Suffolk Street, London SE1 0BS | 020 7075 1400 | ||
| G4orce Telecom Ltd | PO Box 69, London NW6 2JS | 020 7419 7528 | ||
| Gaelic Telecom | http://www.gaelictelecom.ie/ | |||
| Gage Networks LLP | Burley House Burley, Rutland LE15 7TE | 0800 0155989 | ||
| Galaxy Numbers Ltd | Ground Floor, Suite F Breakspear Park Breakspear Way Hemel Hempstead HP2 4TZ | 0845 056 7777 | ||
| Gamma Business Communications Ltd | 2 Manor Court, Barnes Wallis Road, Segensworth, Fareham, Hants PO15 5TH | 0845 521 5000 | http://www.uniworld.co.uk/ | |
| Gamma Telecom Ltd | Kings House, Kings Road West, Newbury RG14 5BY | 0333 240 3000 | http://www.gammatelecom.com/ | |
| Gargiera Ltd | Hexgrave Hall Hexgrave Farnsfield Nottinghamshire NG22 8LS | 01623 883805 | ||
| Garnell Corporate Communications Ltd | Arundel House Garnell Business Park Brownfields Welwyn Garden City, Herts AL7 1AY | 01707 321100 | ||
| Gateway Technologies Ltd | 253 Alcester Road South, Birmingham B14 6DT | 0844 887 4444 | ||
| GW Telecom Ltd | Ephraim Phillips House 54-76 Bissell Street, Birmingham B5 7HP | 0845 456 1092 | http://www.gatewaytelecom.co.uk/ | |
| GB Phone Solutions | ||||
| GB Telecom (Scotland) Ltd | Netherdale Industrial Estate, Galashiels, Selkirkshire TD1 3EY | 01896 752607 | 01896 661308 | http://www.gbtelecom.co.uk/ |
| GB Utilities UK Ltd | 1st Floor North West Wing Kent House Maidstone Kent ME15 6LH | 0844 779 0568 | ||
| Gbads | http://www.gbads.co.uk/ | |||
| GCI Communications Ltd | Global House Allenby Business Village 2a Crofton Close Lincoln LN3 4NT | 0870 6071038 | ||
| GCM Services Ltd | Unit 40 Greenway Business Centre Harlow Essex CM19 5QE | 01889 574476 | ||
| Gee2Gee Ltd | 70 Godstow Road, Abbey Wood SE2 9AZ | 0844 8733604 | ||
| Geezer Telecom Ltd | Dale House 35 Dale Street, Manchester M1 2HF | 0161 236 9339 | http://www.geezertelecom.co.uk/ | |
| GEM Communications | The Bank 97 Buttermarket Street, Warrington WA1 2NL | 0151 495 2154 | ||
| Gema Tech Uk Ltd | Telford House Hamilton Close Houndmills Basinstoke, Hants RG21 6YT | 0845 3458888 | ||
| GemHadar Software Ltd | 5 Falcon Way Yately, Hampshire GU46 6NY | 01252 683554 | ||
| Gemini Communications | Unit 11 Petteril Side Harraby Green Business Park Carlisle CA1 2SQ | 01228 516 500 | ||
| Gemini Telecom Ltd | Waterside Trafford Park, Manchester M17 1WD | 0870 224 2031 | ||
| Gemini TML Ltd | Unit 11, Harraby Green Business Park Carlisle Cumbria CA1 2SQ | 01228 516500 | ||
| 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 Voice and Data Ltd | Trevelyan House 117 Chorley Road, Swinton, Greater Manchester M27 4AA | 0870 750 2336 | ||
| Genius PPT Ltd | Cityview 6 Eagle Street, Glasgow G4 9XA | 0141 280 0275 | ||
| Genzee Ltd | 31 Twickenham Gardens, Harrow HA3 6BG | 0800 047 0390 | ||
| GET Communications | Pendle Innovation Centre Brook Street Nelson Lancashire BB9 9PU | 0845 838 9840 | ||
| Get Dotted | http://www.getdotted.com/ | |||
| GHM Communications | Unit 5 TBAC Business Centre Osney Mead, Oxford OX2 ODR | |||
| Ghost Telecom Ltd | 3rd Floor, Denmark Court, 18 Market Place, Wokingham RG40 1AL | 0118 979 6884 | http://www.ghosttelecom.com/ | |
| giffgaff | http://www.giffgaff.com/ | |||
| Giotech Ltd | Bryson House, 1st Floor 131 Church Elm Lane Dagenham Essex RM10 9RR | 020 7183 2494 | ||
| GJ Beckett and Associates Ltd | Gj Beckett & Associates Limited Units 6-7 Saturn House Calleva Park, Aldermaston Berkshire RG7 8HA | 0118 9409000 | ||
| GKC Communications Ltd | 8 Hurricane Close, Wickford Business Park, Wickford, Essex SS11 8YR | 0800 279 8773 | http://www.loweryourphonebills.com/ | |
| Gladstar Telecommunications | ||||
| glantel | http://www.glantel.com/ | |||
| GlemNet | 112 Beckenham Road, Beckenham, Kent BR3 4RH | 020 8639 0230 | http://www.glemnet.com/ | |
| Glide Utilities Ltd | Cornwall House 31 Lionel Street, Birmingham B3 1AP | 08006 348 631 | http://www.glide.uk.com/ | |
| Global 1 | ||||
| Global 4 Communications Ltd | Global House Rusper Road, Horsham RH12 4QR | 01403 272 910 | http://www.global4.co.uk/ | |
| Global Affinity Plc | GA House 16 Mandeville Close Watford Herts WD7 4SF | 01923 448 840 | ||
| Global Business Technology Ltd | Hornby Street, Bury BL9 5BN | 0161 705 6200 | ||
| Global Comms & Consulting Ltd | Wardens House 4, Broad Street Stamford Lincolnshire PE9 1PB | 0870 420 4013 | ||
| 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 House (Europe) Ltd | 100 Greystoke Drive Ruislip, Middlesex HA4 7YW | 01895 677 865 | ||
| 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 One Communications Holdings Ltd | Global One UK Headquarters, Rosewood Crockford Lane, Chineham Business Park, Basingstoke RG24 8UT | 01256 418000 | http://www.global-one.net/ | |
| Global Telecall Ltd | 1 Fowler's Court, Chipping Norton, Oxon OX7 5FW | 020 8099 9069 | http://www.globaltelecall.com/ | |
| Global Telecom Ltd | PO Box 2059 Watford, Herts WD17 1XR | 08700 55 56 57 | ||
| Global Telecommunications Ltd | Palamos House 67 High Street, Lymington SO41 9AL | 0800 953 4050 | http://www.gt.uk.com/ | |
| Global Telecoms Ltd | PO Box 161, Newtownabbey, Co Antrim BT36 6ZA | http://www.topupdial.co.uk/ | ||
| Global Telecoms Partners Ltd | ||||
| M247 Ltd | http://www.globalaxs.com/ | |||
| Globalcharge | ||||
| Globaldial | http://www.protontelecom.co.uk/ | |||
| Globalnet Telecom Ltd | 1–3 The Coach House, 36a Castlegate, Newark NG24 1BG | 0844 880 2010 | 0844 880 2011 | http://www.globalnet-telecom.com/ |
| GlobalVocal | ||||
| Globe Connect Ltd | 90 Worcester Road Hagley Stourbridge West Midlands DY9 0NJ | 01562 888215 | ||
| Globecom International LLC | 5904 18th Ave, Brooklyn, NY 11204, USA | (212) 380-1828 | (718) 795-1666 | http://www.globecoms.com/ |
| GM Convergence Ltd | 113 Lillie Road Fulham, London SW6 7SX | 020 3080 0707 | ||
| GMK Telecom | ||||
| Go Talk | http://www.gotalk.co.uk/ | |||
| Go To Assist | http://www.gotassist.com/ | |||
| Go To Meeting | http://www.gotomeeting.co.uk/ | |||
| Go To Webinar | http://www.gotomypc.com/webinar/ | |||
| Go ToMyPC | http://www.gotomypc.com/webinar/ | |||
| Go Worldwide Communications Ltd | ||||
| Gold Telecom Ltd | Unit 1 St John's Mews, 13 St John's Road, Hampton Wick, Kingston Upon Thames KT1 4AN | 020 8614 4860 | 020 8614 4861 | http://www.goldtelecom.co.uk/ |
| Goldfish Telecom Ltd | 2 Melville Street Lees, Oldham OL4 5BW | 0161 4080874 | ||
| Gooch ICT Ltd | Services Division ICT Warehouse 56 Coulson Road Lincoln LN5 8BH | 01522 546624 | ||
| Goodman Blue Ltd | ||||
| Gordon Harwood Computers Ltd | Derwent House NewStrewet Alfreton Derbyshire DE55 7BP | 0870 774 1234 | ||
| GOUK Ltd | 217 Bath Road, Slough SL1 4AA | 020 8321 4000 | ||
| GP Network Solutions Ltd | 56a Albury Road Merstham, Surrey RH1 3LS | 01737 646 770 | ||
| Your Call Ltd | 75-77 Drake Street Rochdale, Lancs OL16 1SB | 0845 3456787 | http://www.gptelecom.co.uk/ | |
| GPS Telecoms Ltd | Suite 9 Stowmarket Business Centre Ernest Nunn Road Stowmarket Suffolk IP14 2ED | 0870 730 7000 | ||
| GR Comms Ltd | Peter House Oxford Street, Manchester
M1 5AN |
08704 232320 | ||
| Grace Solutions Ltd | 5 Iceni Way, Cambridge CB4 2NZ | 01223 909802 | ||
| Grace Telecom Ltd | 2E Sunrise Business Park, Blandford Dorset DT11 8ST | 0333 577 9790 | ||
| Gracemoore Managed Networks Ltd | 14 Dedham Vale Business Centre Manningtree Road Dedham Essex CO7 6BL | 0844 858 4510 | ||
| Gradwell Dot Com Ltd | 26 Cheltenham Street, Bath BA2 3EX | 01225 800 123 | 01225 800 801 | http://www.gradwell.com/ |
| Gradwell dot com Ltd | 26 Cheltenham St, Bath BA2 3EX | 01225 800800 | ||
| Green Communications Ltd | Unit 8, Bowes Estate Wrotham Road Meopham Kent DA13 0QB | 0845 073 0300 | ||
| Green Fields Technology | 93-99 Upper Richmond Road, London SW15 2TG | 0845 200 7800 | ||
| Green House Telecom | Green House Hebden Bridge, HX7 7JR | 01422 844431 | ||
| Green ISP | http://www.greenisp.net/ | |||
| Green Lane Solutions Ltd | 1 Lyric Square, London W6 0NB | 020 3008 6049 | ||
| Green Mobile | http://www.greenmobile.co.uk/ | |||
| Green Planet Communications Ltd | 1 Yr Hen Felin Castlemorris Haverfordwest Pembs SA62 5EN | 0844 880 1122 | ||
| Green Rate Telecom Ltd | 1 Innova Business Park Elecric Avenue Enfield Middlesex EN3 7XU | 0845 0268912 | ||
| Green Telecom | http://WWW.IBNETWORKS.COM/ | |||
| Green WebHost | http://www.greenwebhost.net/ | |||
| Greencom Europe Ltd | 1 Innova Business Park Electric Avenue Enfield Middlesex EN3 7XU | 08458 722 080 | ||
| Greendog Networks Ltd | Barking House Farndon Road Market Harborough Leicetershire LE16 9NP | 0845 303 8335 | ||
| Greenstock Ltd | ||||
| Greentelecom | http://www.greenteleworld.com/ | |||
| Greystone Telecom Ltd | Greystone House, Rudheath Way, Gadbrook Park, Northwich, Cheshire CW9 7LL | 0844 875 5000 | 0844 875 5001 | http://www.greystonetelecom.co.uk/ |
| Grid Telecom Ltd | 2 Julian Road Sholing, Southampton SO19 8LZ | 0330 700 0023 | ||
| Griffin Information Systems | 20 St Christopher's Way Pride Park, Derby DE24 8JY | 0870 8040804 | ||
| Group 3 Technology Ltd | Hogan House, 20 High Street, Aldridge, West Midlands WS9 8LZ | 01922 453394 | 01922 459994 | http://www.group3technology.net/ |
| GSM-Central | ||||
| GTEQ Intelligent Mobile | http://www.gteq.co.uk/ | |||
| GTEQ Solutions Ltd | Global House Adlington Estate, Adlington SK10 4BF | 0844 811 0844 | http://www.gteq.co.uk/ | |
| GTMobile | http://www.lycamobile.co.uk/ | |||
| Guernsey Airtel | ||||
| GW Telecom Ltd | Branston Court Branston Street, Birmingham B18 6BA | 0845 180 7777 | ||
| Gzilch Ltd | 31 Museum Street, London WC1A 1LG | 020 7692 2650 | ||
| Hale Network Solutions Ltd | 23 Ashley Road Altrincham, Cheshire WA14 2DP | 0161 929 1580 | ||
| Halo Communications Ltd | ||||
| HandT Communications | ||||
| Harmony Solutions Ltd | Unit 9A, Building 2 Shamrock Quay William Street Southampton SO14 5QL | 0870 423 4200 | ||
| Hartel Technologies Ltd | 23 Nether Hall Avenue Great Barr, Birmingham B43 7EU | 0121 360 4824 | ||
| Hartwood Services | 70 Armstrong Road Old Basing, Basingstoke RG24 8NU | 01256 334755 | ||
| HashNine Managed Communications Ltd | 22 Chaldon Road Caterham-on-the-Hill Caterham, CR3 5PE | 0207 101 7500 | ||
| 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 | ||
| Hay Systems | http://www.haysystems.com/ | |||
| HB Telecom (UK) Ltd | HB House Foleshill Enterprise Park Courtaulds Way Coventry CV6 5NX | 0870 750 3666 | ||
| HCC.UK.COM Ltd | The Old School School Road Miskin Pontyclun, RCT CF72 8PG | 01443 449987 | ||
| HCS Telecom Ltd | 11 Silver Lane, West Sussex RH14 9RP | 0800 018 2770 | ||
| HD Telecom Ltd | Trident House 596-598 High Road Woodford Green Essex IG8 0PS | 0870 3004545 | ||
| Headway Technology Services | Shaw House Shaw Road, Wolverhampton WV10 9LE | 01543 888 150 | ||
| Heathrow Communications Ltd | ||||
| Hello Telecom Ltd | http://www.hello-telecom.co.uk/ | |||
| Hello Telecom (UK) | http://www.hello-telecom.co.uk/ | |||
| Hello Voice | 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 | ||
| HFH Communications | ||||
| Hi Tel UK Ltd | 26 Waldegrave Road Dagenham, London RM8 2QD | 020 7137 1719 | ||
| HiDef Conferencing | http://www.hidefconferencing.com/ | |||
| High Span Networks Ltd | 14 Alban Park Hatfield Road St. Albans Herts AL4 0JJ | 01727 810 860 | ||
| Highland Network Ltd | 10 Lotland Street, Inverness IV1 1PA | 0808 168 0088 | 0808 168 0001 | http://www.highnet.com/ |
| Highnet | http://www.highnet.org.uk/ | |||
| HighSpeed Office | Epworth House 25 City Road, London EC1Y 1AA | 020 7847 4500 | http://www.hso.uk.com/ | |
| Hiline Communications Ltd | Woodgates Pardhouse Lane Stanford Bridge Worcester WR6 6RX | 01886 812731 | ||
| Hi-Tech Communications Services Ltd | The Chase Business Centre 39-41 Chase Side Southgate London N14 5BP | 0870 872 0202 | ||
| Hive Telecom Ltd | Global House, 2 Crofton Close, Lincoln LN3 4NT | 01256 857000 | 01256 857103 | http://www.hivetelecom.com/ |
| HiWiFi | http://hiwifi.co.uk/ | |||
| HJS Essentia Ltd | 12-14 Carlton Place, Southampton SO15 2EA | 023 8023 4222 | ||
| Hogarth Commmunications Ltd | 20 Fletcher Gate, Nottingham NG1 2FZ | 0870 777 0377 | ||
| Holistic Telecom Ltd | 2nd Floor 145-157 St John Street, London EC1V 4PY | 0870 432 8370 | ||
| Honey Bee Communications Ltd | 95 Chapel Street, Manchester M3 5DF | 0870 754 7500 | ||
| 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/ | |||
| Hospedia | ||||
| Hospitality Networks and Services Plus UK Ltd | 126-128 New Kings Road, London SW6 4LZ | 020 7348 6770 | ||
| Host Regus | ||||
| Hosted Phones Ltd | The Old Courthouse Chapel Street Dukinfield Cheshire SK16 4DT | 0161 885 2085 | ||
| Hosting Systems Ltd | Bellringer Road Stoke on Trent, Staffs ST4 8GB | 0845 888 8001 | ||
| Hostingus | http://www.hosting.us.com/ | |||
| Host-IT Internet Systems | http://www.host-it.co.uk/ | |||
| Hotchilli Internet | http://www.hotchilli.com/ | |||
| Hotdial | http://www.hotdial.co.uk/ | |||
| Hotel Telephone Maintenance (HTM) Ltd | HTM Ltd 33 Walker Avenue Wolverton Mill East Milton Keynes MK12 5TW | 0845 4580 690 | ||
| Hotline Energy Plc | ||||
| Housing Communications Ltd | Bridge Suite, Severnside House Brassey Road Old Potts Way Shrewsbury SY3 7FA | 01743 356 999 | ||
| Houxou | http://www.houxou.com/ | |||
| HQ Telecom Ltd | Unit 51 Waterside Trading Centre Trumpers Way London W7 2QA | 0844 901 0044 | ||
| Hubtel Communications Ltd | Unit C6 HRS House Garretts Green Lane Garretts Green Birmingham BB33 0UE | 0870 7744075 | http://www.hubtelcomms.co.uk/ | |
| Hugh Symons | Alder Hills Park 16 Alder Hills Park Poole Dorset BH16 4AR | 01202 714316 | ||
| Hughes Network Systems Ltd | Sunrise Parkway Linford Wood, Milton Keynes MK14 6LS | 01908 425300 | ||
| Hullabaloo Communications Ltd | Nelson House 1a Church Street Epsom, KT17 4PF | 0845 612 8585 | ||
| HulloMail | ||||
| 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 | ||
| Hyperoptic Ltd | Rylett Studios, 77 Rylett Crescent, London W12 9RP | http://www.hyperoptic.com/ | ||
| I Active | 225 Norberry Road Norberry London SW16 4TU | 07932 017 575 | ||
| I Care | http://www.ihub.co.uk/ | |||
| I Communicate Services | ||||
| I Data Solutions (UK) Ltd | Parkgate House, Deeside Industrial Park, Welsh Road, Deeside CH5 2LR | 0844 847 6768 | 01244 288792 | http://www.idsu.co.uk/ |
| I Hub Service | http://www.ihub.co.uk/ | |||
| I.net Internet Services Ltd | 1B Market Place Grantham, Lincolnshire NG31 6LQ | 01476 512 920 | ||
| I-21 | ||||
| I3c Ltd | ||||
| iBasis Europe | ||||
| iBasis Global, Inc | 20 Second Avenue, Burlington, Mass 01803 | 001 781 505 7500 | http://www.ibasis.net/ | |
| IBSC | ||||
| iCard European Telecommunications (Ireland) | ||||
| ICC Networks | ||||
| iCCOM Ltd | Townend, 70 Bondgate, Helmsley York YO62 7EZ | 0844 902 4880 | ||
| Icecolo | http://www.icecolo.com/ | |||
| ICOM Ltd | Unit 3 Brent Mill Business Park South Brent, TQ10 9YT | 01364 649310 | ||
| Icom Network Services | http://www.icomtel.com/ | |||
| Icom Telecommunications Ltd | 3 Kings Row Armstrong Road Maidstone Kent ME15 6AQ | 01622 655218 | ||
| iCommunicate Group Ltd | 40 Marsh Wall, London E14 9TP | 0845 1740010 | ||
| IcoSys Computers & Communications Ltd | Harman House Dunlop Road, Ipswich IP2 0UG | 01473 211 330 | ||
| ICS 1989 Ltd | ||||
| ICS Call Options Ltd | 40 Devonshire Road, Bolton BL1 4DQ | 01204 848 414 | ||
| iCS Communications | http://www.icscomms.co.uk/ | |||
| iCS Connect | http://www.icscomms.co.uk/ | |||
| ICS 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 | The Granary 50 Barton Road Worsley Manchester M28 2EB | 0845 017 9000 | ||
| ICTSG Ltd | 26 Llsley Road Marnel Park, Basingstoke RG24 9RU | 01256 478 346 | ||
| ICUK Computing Services Ltd | 240a Pampisford Road, South Croydon CR2 6DB | 0845 009 9175 | 0870 116 2001 | http://www.icukhosting.co.uk/ |
| ICUK Computing Services | http://www.icukhosting.co.uk/ | |||
| ICUK hosting | http://www.icukhosting.co.uk/ | |||
| ICUK Net | http://www.icukhosting.co.uk/ | |||
| Icy Tea Technologies Ltd | Unit 1 Links Close Estate Glemsford Sudbury Suffolk CO12 7GZ | 0844 358 5558 | ||
| ID Telecoms | Cedar House, Fairfield Street, Manchester M1 3GF | 0161 234 6710 | 0161 234 6719 | http://www.idtelecoms.com/ |
| i-dash Ltd | Suite 3 Orchard House Tebbutts Road St Neots Cambs PE19 1AW | 0845 026 1145 | ||
| Ideal Converged Technologies Ltd | 10 Bridge Street Thetford, Norfolk IP22 1DY | 01842 822 485 | ||
| Ideal Network Solutions Ltd | Suite C 411 Warrington Road Culcheth Warrington WA3 5SW | 08432 120 060 | ||
| Ideal Phone Communications (UK) Ltd | 22 Putney Bridge Road, London SW18 1HS | 020 8874 9905 | ||
| Ideal Telecoms Ltd | HPF House Park Road Toddington Bedfordshire LU5 6HG | 08006 529 863 | ||
| IDNet Studio | Bridge House, Bridge Street, Hitchin, Herts SG5 2DF | 01462 480092 | 01462 673963 | http://www.idnet.net/ |
| IDNet Home Phone | http://www.idnet.net/ | |||
| IDT Direct Ltd | ||||
| IDT Global Ltd | Telephone House
69-77 Paul Street, London EC2A 4NQ |
020 7549 6000 | http://www.idteurope.com/ | |
| Ifon Ltd | The Old Printworks Wellington Street Thame Oxon OX9 3BN | 00844 220001 | ||
| IGC Fixed Line Ltd | 8&9 Horsted Square Bellbrook Business Park, Uckfield TN22 1QG | 0845 257 7003 | ||
| Ignite Service Provider Ltd | 3 Buckingham Court Rectory Lane Loughton Essex IG10 2QZ | 0845 9000 417 | ||
| iHub | Long Barn Amport, Hants SP11 8JB | 01264 889 094 | ||
| IITAC Ltd | Suite 306 Warth Business Centre, Bury BL9 9NB | 0161 763 0300 | ||
| ikenga Ltd | Merton House, Lea Wiltshire SN16 9PG | 01666 822392 | ||
| 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 | ||
| IM Software | ||||
| Image Telecom Solutions Ltd | 14 Market Street, Marple, Stockport SK6 7AD | 0845 345 3600 | ||
| Imagine Broadband | http://www.imagine.ie/ | |||
| Imagine Media Ltd | 2nd Floor 145-157 St John Street, London EC1V 4PY | 020 7100 5531 | ||
| Imanage Ltd | 370-372 Manchester Road, Oldham OL9 7PG | 0870 9500150 | ||
| Imerja Ltd | Hallmark House, Paragon Business park, Chorley New Road Horwich Bolton BL6 6HG | 0870 8611488 | ||
| imobileforbusiness | http://www.imobileforbusiness.com/ | |||
| Impact Business Services Ltd | Dyehouse Drive Cleckheaton, West Yorks BD19 4TY | 0870 0433 796 | ||
| IMS Health Ltd | 7 Harewood Avenue, London NW1 6JB | 020 3075 4555 | ||
| Imtex Technologies Limied | 18 Linford Forum Rockingham Drive Milton Keynes Buckinghamshire MK14 6LY | 08447 644444 | ||
| In Call Solutions Ltd | The Granary, 50 Barton Road, Worsley, Manchester M28 2EB | 0161 444 3333 | 0161 444 3334 | http://www.incallsolutions.com/ |
| In2com | ||||
| IN2NET Solutions Ltd | 145-157 St John Street, London EC1V 4PY | 020 8906 8169 | ||
| Inbound Solutions Ltd | 8 Greenham Park Common Road Witchford Ely CB6 2HY | 0800-0776907 | ||
| Inclarity Communications Ltd | 3-5 Swallow Place, Oxford Circus, London W1B 2AF | 020 8634 0600 | http://www.inclarity.co.uk/ | |
| Incom Business Systems | Waterside, Trafford Wharf Road, Manchester M17 1WD | 0161 876 5353 | http://www.incom-business-systems.co.uk/ | |
| Incom Network Services | Incom House Waterside Trafford Park Manchester M17 1WD | 0161 875 6353 | 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 | 0845 450 1781 | http://www.incovo.com/ |
| 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 | ||
| Indiecom Ltd | 24 Great Chapel Street, London W1F 8FS | 0207 439 0116 | ||
| Indigo Forward 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 | Unit 12e The Lansbury Estate Lower Guildford Road Knaphill, Surrey GU21 2EP | 0870 8987089 | ||
| Indigo Networks GmbH | Ronsdorfer Strasse 74 Halle 15/22, D-40233 Dusseldorf, Germany | http://www.sipgate.co.uk/ | ||
| Indigo Telecom Group | Castlegate Business Park Caldicot, Monmouthshire NP26 5AA | 01291 435500 | ||
| Inenco Group Ltd | ||||
| i-Net Communications Group Plc | ||||
| iNet Telecoms Ltd | Sovereign House, 227 Marsh Wall, London E14 9SD | 020 7043 5555 | 020 7043 5556 | http://www.voipfone.co.uk/ |
| Infiniti-e Ltd | Karlsruhe House 18 Queensbridge Road, Nottingham NG2 1NB | 0845 226 1914 | ||
| Infinity Development Ltd | 1 Flint Road, Letchworth SG6 1HJ | 0800 331 7000 | ||
| Infologic Solutions Ltd | 181 Queensway Bletchley, Milton Keynes MK2 2DZ | 0871 811 1973 | ||
| Infomedia Telecom Ltd | ||||
| Inform Billing Solutions Ltd | Unit E The Barton Fields Centre Barton Blount Church Broughton Derbyshire DE65 5AP | 01889 220531 | ||
| Inform Telecom Ltd | Unit E The Barton Fields Centre Barton Blount Church Broughton Derbyshire DE65 5AP | 01889 220531 | ||
| Information Technology Communications Ltd | 2-8 Park Road Lytham St Annes Lancashire FY8 1QX | 01253 783990 | ||
| Infosystems Ltd | The Barn, Bridge Farm Holt Lane, Ashby Magna Lutterworth Leicestershire LE17 5NJ | 01455 201 000 | ||
| Inframatic Ltd | 5 Oakway, Shortlands, Bromely, Kent BR2 0LJ | 077 1180 9709 | ||
| Infrastructure UK | 1 Queen Square, Brighton BN1 3FD | 01273 258730 | ||
| Ingenitech Ltd | 11a ladybridge Road Cheadle Hulme, Cheshire SK8 5LL | 0161 485 5464 | ||
| Initial Technologies Ltd | 65 Long Meadows Chorley Preston Lancs PR7 2YB | 01257 263 768 | ||
| Innotech Consultants Ltd | 27 Trinity Street St. Austell, Cornwall PL25 5LS | 01726 879 285 | ||
| Innov@te Ltd | 25 Stanely Hill Amersham, Buckinghamshire HP7 9HP | 01494 727 546 | ||
| Innovate Communications Ltd | Whitehall Farm Aston, Oswestry SY11 4JH | 0843 515 9999 | ||
| Innzone Ltd | Premier House 112 Station Road Edgware Middx HA8 7BJ | 0870 9919205 | ||
| Insite Management Services Ltd | 3 Birkheads Road Reigate, RH2 0AR | 0845 070 0103 | ||
| Instafone PLC | Taylor House, Bradford Road, Dewsbury WF13 3EG | 01924 514 4444 | ||
| Instant Communication Ltd | Communications House, 25 Bellefields Road, London SW9 9UH | 020 8399 3333 | http://instant-tel.co.uk/ | |
| Instant Telecommunications | ||||
| In-Tech Telecom Ltd | Astro House 16 Brunel Way Segenworth East Industrial Estate Fareham, Hampshire PO15 5TX | 0870 607 060 | ||
| InTechnology | Commensus House Worton Drive Reading Berks RG2 0TG | 01189 168 850 | ||
| Integra Digital | 28 Stephenson Road Leigh-on-Sea, Essex SS9 5LY | 01702 410 303 | ||
| 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 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 Communications for Business (UK) Ltd | Highlands house Basingstoke Road Spencers Wood Reading, Berkshire RG7 1NT | 0870 848 5600 | ||
| Integrated Digital Services Ltd | Grange Court Raby Mere Road Raby Wirral CH63 4JH | 0151 353 3838 | ||
| Integrated Messaging Systems Ltd | 62 Liverpool Road Crosby, Liverpool L23 5SJ | 0871 210 5111 | ||
| Integrated Telecom Ltd | 9 Downsway, Northampton NN4 0TD | 0774 007 3685 | ||
| Intel Ltd | 16 Shearway Business Park Folkestone, Kent CT19 4RH | 0845 869 5253 | ||
| Intelesis Ltd | Unit 7, First Floor Offices Canal Works Cadman Street Sheffield S4 7ZG | 0870 4609967 | http://www.intelesis.co.uk/ | |
| Intelligent | http://www.inwcomms.co.uk/ | |||
| Intelligent Network Services (UK) Ltd | Wingates House 50-52 Chorley Road Westhoughton Bolton BL5 3PR | 0871 871 6781 | ||
| Intelligent Networks Ltd | Unit 4, Bradwall Court, Bradwall Road, Sandbach, Cheshire CW11 1GE | 0845 456 5544 | 0845 456 4778 | http://www.inwcomms.co.uk/ |
| Interact Communications Ltd | 16-18 Monument Street, London EC3R 8AJ | 0845 8733110 | ||
| Interact Solutions | ||||
| Interactive (Telecoms) Ltd | Vittoria House 1-7 Vittoria Street, Birmingham B1 3ND | 0845 300 8998 | ||
| Interactive Call Centre Solutions Ltd | Pavailion Buildings 20 Old Steine Brighton & Hove City East Sussex BN3 2PD | 01273 845 599 | ||
| Intercity Mobile Communications Ltd | 101-114 Holloway Head, Birmingham B1 1QP | 0121 643 7373 | ||
| Interface Advantage Ltd | Abbey House 1650 Arlington Business Park Theale Reading RG7, 4SA | |||
| Intergr8 Voice and Data Ltd | 5 Tempo House 15 Falcon Road, LONDON SW11 2PJ | 0845 225 2202 | ||
| Intergrate (Europe) Ltd | Dominions House Queen Street, Cardiff CF10 2AR | 0870 899 1010 | ||
| Intergrated Communications for Business | http://www.alternativenetworks.com/ | |||
| Intergritel Ltd | 65a Walton Lane Nelson, Lancashire BB9 8HX | 07817 552 852 | ||
| Inter-Group Communications Ltd | 113a Norwood Road Southport, Merseyside PR8 6EL | 0800 919306 | ||
| 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 | ||
| International Telecom Brokers Ltd | ||||
| Internet Central Ltd | Innovation Centre Keele Science Park Keele Staffordshire ST5 5NB | 01782 667788 | ||
| Internet Computer Bureau Ltd | ||||
| Internet For Business Ltd | 387 Union Street Aberdeen, Aberdeenshire AB11 6BX | 0800 027 0110 | ||
| Internet Projects Ltd | European Communications Centre Flag Business Exchange Vicarage Farm Road Peterborough PE1 5TX | 0870 8922 111 | ||
| Internet Services (EU) Ltd | Internet Service (EU) Limited 196 High Road Wood Green London N22 8HH | 0870 0053147 | ||
| Internet Software Solutions Ltd | Whateleys Drive Kenilworth, Warks CV8 2GY | 01926 678407 | ||
| 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 | ||
| Internetworks Telecom Ltd | http://www.inwcomms.co.uk/ | |||
| Internexus Networks | Time Technology Park Blackburn Road Simonstone Burnley BB12 7TW | 0870 830 3122 | ||
| Interoute Communications Ltd | Walbrook Building, 195 Marsh Wall, London E14 9SG | 020 7025 9000 | 0207025 9888 | http://www.interoute.com/ |
| Interoute Communications Ltd | Walbrook Building 195 Marsh Wall, London E14 9SG | 020 7025 9000 | ||
| Intersonic Ltd | Intersonic House 10 Vincent Street Bradford West Yorkshire BD1 2NT | 08456 44 3733 | ||
| Intouch Advance Ltd | Mercury Quays Ashley Lane Shipley West Yorkshire BD17 7DB | 0844-5680000 | ||
| InTouch Communication Services Ltd | Orion House, 104 - 106 Cranbrook Road Ilford, Essex IG1 4LZ | 020 8554 9055 | ||
| IntraLAN Telecom Ltd | Kings Avenue House Kings Avenue New Malden Surrey KT3 4DY | 020 8401 7000 | ||
| Intramation Ltd | 8 Durham Lane West Moor Park Armthorpe Doncaster DN3 3FE | 01302 836090 | ||
| Intrinsic Technology Ltd | Haydock, Merseyside WA12 0JQ | 14 The Parks | ||
| Introcom Corporation | 21 Turvey Lane Long Whatton, Loughborough LE12 5DN | 0870 7946601 | ||
| Intuitive Systems & Networks Ltd | PO Box 6215 Greenham Thatcham Berkshire RG19 9GD | 020 3276 2476 / 01635 490 42 | ||
| INUK Networks | ||||
| InUtil Communications Ltd | Ty Cornel, 2 Llys Armon, Lixwm Holywell CH8 8PG | 0845 121 6672 | ||
| Inventive Data Ltd | 9 Austin Boulevard Quay West Business Village Sunderland Tyne & Wear SR5 2AL | 0191 502 2521 | ||
| Inverclyde Telecommunications Ltd | 3 Finbraken Drive Gourock, Inverclyde PA19 1BF | 01475 632 152 | ||
| Invest UK | ||||
| Investroute Ltd | The Old Barrel Store Draymans Lane, Marlow SL7 2FF | 08453 700 800 | ||
| Invictawiz | http://www.invictawiz.com/ | |||
| Invoco Ltd | 55-57 High Street, Bromsgrove, Worcs B61 8AJ | 01527 306000 | https://www.invoco.net/ | |
| Invomo Ltd | 130 City Road, London EC1V 2NW | 0844 888 8500 | 0844 888 8600 | http://www.invomo.com/ |
| IOVOX Ltd | 153 Westbourne Grove, Notting Hill, London W11 2RS | 020 7099 1070 | http://www.iovox.com/ | |
| IP Base Ltd | 24 Broad Street, Salford, Manchester M6 5BY | 0161 219 8200 | 0161 219 8209 | http://www.ipbase.co.uk/ |
| IP First Ltd | St. James Court Wilderspool Causeway, Warrington WA4 6PS | 0845 330 0207 | ||
| 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 Network Communications Ltd | IPNC 7 Joydens Wood Road Bexley Kent DA5 2HS | 0845 1651 360 | ||
| IP Office Northwest Ltd | 48-52 Penny Lane Mossley Hill, Liverpool L18 1DG | 0845 009 5544 | ||
| IP Phone Services | ||||
| IP Phone Solutions Ltd | 77a King Street Knutsford, Cheshire WA16 6DX | 0844 2570179 | ||
| IP Solutions UK Ltd | 24 Monument Street, London EC3R 8AJ | 08000 928 128 | ||
| IP Telecommunications LTD | ||||
| iPinnacle Ltd | 60 Southwark Bridge Road, London SE1 0AS | 020 7401 4780 | ||
| IPLYNK Ltd | Upper Floor 202 Cirencester Business Park Love Lane, Cirencester Gloucestershire GL7 1XD | 0800 434 296 | ||
| IPTel Ltd | The Old Cart Lodge Feltimores Park Chalk Lane Harlow CM17 0PF | 0800 316 0909 | http://www.iptel-uk.com/ | |
| IPV6 Ltd | 324 Regent Street, London W1B 3HH | 070 4000 1111 | 070 4000 1112 | http://www.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 | Unit 7, Manor Court Barnes Wallis Rd Fareham PO15 5TH | 0870 871 4141 | ||
| I-Ras Solutions Ltd | Decimal House Thomas Lane Redcliff Bristol BS1 6JG | 0845 634 0601 | ||
| IRL Consulting Ltd | 24 Crosby Hill Drive, Camberley Surrey GU15 3TY | 01276 516319 | ||
| ISC Networks Ltd | Solar House Stukeley Business Centre Huntingdon Cambridgeshire PE29 6EF | 01480 421000 | ||
| isdn datacom Ltd | ||||
| ISDN Media Ltd | 94 Whitehorse Road Windsor, Berkshire SL4 4PH | 0870 7775 225 | ||
| Isis Telecommunications Ltd | 92-98 Warwick Road, London W5 5PT | 0845 456 3515 | ||
| ISN Telecom Business Services Ltd | 16 Oakhill Road, Doncaster DN2 5NX | 0131 2020 321 | ||
| Isrighthere Ltd | Broadwater Barn Part Lane Riseley Reading RG7 1RU | 0118 9881 260 | ||
| IT Assist | The Tek-Centre 187 Baker Street Enfield Middx EN1 3JT | 0870 7771763 | ||
| IT Builder Ltd | Pantile Barn Waterfall Farm Lower Hatfield Road Hertford, Herts SG13 8LE | 020 3137 0026 | ||
| IT Genie Ltd | Zurich House East Park, Crawley RH10 6AS | 0845 0945 333 | ||
| IT Professional Services Ltd | Axwell House Waterside Drive Gateshead Tyne and Wear NE11 9HU | 0191 442 8300 | ||
| IT Support 365 | Carlton House Maundrell Road Porte Marsh Industrial Estate, Calne, Wiltshire SN11 9PU | 01793 744100 - 0845 0510800 | ||
| it3000 Ltd | 44-50 Old Christchurch Road, Bournemouth BH1 1LN | 01202 830 830 | ||
| italk Ltd | Unit 6, Gemini Centre, 136/140 Old Shoreham Road, Hove BN3 7BD | 0845 373 4290 | http://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/ | |||
| ITB | http://www.itbcomms.co.uk/ | |||
| Itec Support Ltd | 3 Fountain Street Nailsworth, Gloucestershire GL6 0BL | 0845 057 0570 | ||
| IT-Initiative Ltd | 5 Dicker Mill Hertford, Hertfordshire SG13 7AE | 0844 933 0735 | ||
| ITLab Direct | 309 Scott House Gibb Street Birmingham West Midlands B9 4AA | 0121 607 4140 | ||
| ITR Telecom Ltd | ||||
| ITS Telecoms Ltd | Unit 20 Brookside Centre Sumpters Way Southend on Sea Essex SS2 5RR | 08700 420 580 | ||
| ITSOS | Unit 8 Brannam Crescent Roundswell Business Park Barnstaple N.Devon EX31 3TD | 01271 852970 | ||
| ITsynergy Ltd | PO Box 50283, London EC2P 2WS | 0800 583 9103 | ||
| ITVET Ltd | 4 London Road Bishops Stortford, Herts CM23 5ND | 0870 423 2757 | http://www.itvet.co.uk/ | |
| IV Response Ltd | 57-61 Mortimer Street, London W1W 8HS | 020 7717 1766 | 020 7717 1701 | http://www.ivresponse.com/ |
| Ivory Billing Ltd | Springsteen House 497 Warrington Road Rainhill Merseyside L35 0LR | 0871 277 6630 | ||
| Comms Factory Ltd | 41 Rushington Business Park Chapel Lane Totton Hampshire SO40 9LA | 02380 427 300 | http://www.izr.com/ | |
| J & E Computers Ltd | 3 Owler Ings Road Brighouse, Yorkshire HD6 1EJ | 01484 402030 | ||
| j2 Global Ireland Ltd | Galway Office, Corporate House, Ballybrit Business Park, Galway, Ireland | 0870 199 8877 | http://www.yac.com/ | |
| JabbaTalk Ltd | Unit 2, Riverside Park, Caton Road, Lancaster LA1 3PE | 01524 39212 | http://www.jabbatalk.co.uk/ | |
| JAD Logic | Bush House Seveock Greenbottom Truro TR4 8QH | 01872 561 234 | ||
| Jaguar Telecom Ltd | 3rd Floor, Elstree House Elstree Way Borehamwood Herts WD6 1SD | 08456 777 666 | ||
| Jajah Technologies SA | 11A Boulevard Joseph II, 1840 Luxemburg | http://www.jajah.com/ | ||
| JamesCash.co.uk Ltd | Oakleaf Buildings Plant Street, Cradley Heath B64 6EZ | 01384 880 660 | ||
| Japan Telecom UK Ltd | c/o Dibb Lupton Alsop, 125 London Wall, London EC24 5AE | http://www.japan-telecom.co.uk/ | ||
| JC Technologies | C209 MK:TWO Business Centre 1-6 Barton Road Water Eaton Milton Keynes MK2 3HU | 01908 631 075 | ||
| Jcom UK Ltd | 63-67 High Street, Teddington Middlesex TW11 8HA | 020 8943 2222 | ||
| Jelly Communications Ltd | 44 Barwell Business Park leatherhead Road Chessington Surrey KT9 2NY | 0808 161 0000 | ||
| Jersey Airtel | ||||
| Jersey Telecom | PO Box 53, No 1 The Forum, Grenville Street, St Helier, Jersey JE4 8PB | 01534 882882 | http://www.jerseytelecom.com/ | |
| Jessico Networks | ||||
| Jet Telecom Ltd | Suite 6 Chineside Heights 5 Earle Road Bournemouth Dorset BH4 8QJ | 08450 700 808 | ||
| JHL Communications Ltd | 16 Fitzroy Place Sauchiehall Street, Glasgow G3 7RW | 0141 572 1624 | ||
| Jimati UK | ||||
| JL Data Solutions Ltd | Unit D12 David Street Bridgend Industrial Estate Bridgend CF31 3SA | 01656 653352 | ||
| JL Registry & Connectivity Network | 3 The Quadrant, Coventry CV1 2DY | 0844 391 3500 | ||
| Jomble Ltd | Orchard House Provender Lane Norton, Faversham Kent ME13 0SL | 0845 4210630 | ||
| Jomble Net | http://www.keypointcommunications.co.uk/ | |||
| Joy Telecom | PO Box 34057, London N13 5WA | http://www.joytelecom.co.uk/ | ||
| JPC InfoNet Ltd | Suite 2 Bryer Ash Business Park Bradford Road Trowbridge Wiltshire BA14 8AW | 01225 77655 | ||
| JSC Ingenium (UK) Ltd | Winter Hill House, Station Road Approach, Marlow, Bucks SL7 1NT | http://www.jscingenium.com/ | ||
| Jtec UK | ||||
| JTML.com | Clomar House Jubys Hill Witnesham Ipswich IP6 9EN | 01473 286666 | ||
| Julton Ltd | The Bearings Bowbridge Road Newark Nottinghamshire NG24 4BZ | 08700 505013 | ||
| Jungle Networks Ltd | The Granary 4 Stebbing Farm Fishers Green Stevenage, Hertfordshire SG1 2JB | 07973 164 628 | ||
| Jupiter Systems Ltd | 82 Meadrow Godalming, Surrey GU7 3HT | 01483 410001 | ||
| Jupiter Telecom Services Ltd | ||||
| Just Call | http://www.justcall.co.uk/ | |||
| Just Natter Ltd | 3 Hunters Chase Dinnington, Sheffield S25 2TQ | 0845 868 7894 | ||
| Just Phone | http://www.phonecard-services.co.uk/ | |||
| Just Phone Account | http://www.phonecard-services.co.uk/ | |||
| Just Phone Call Through | http://www.phonecard-services.co.uk/ | |||
| Just Tek Ltd | 3 Hunters Chase Dinnington Sheffield South Yorkshire S25 2TQ | 0845 868 7894 | ||
| Just Utilities Ltd | Gibson House Hemswell Cliff, Gainsborough, Lincolnshire DN81 8LE | 01427 667 070 | ||
| Just-Dial Instant | 6 Snow Hill, London EC1A 2AY | 0844 552 8575 | http://www.just-dial.com/ | |
| JVH Communications Ltd | Blakedown House Village Farm Estate, Bridgend CF33 6BJ | 01656 303030 | ||
| JVH Voice & Data plc | ||||
| Kalnet4u Ltd | 81 St Modwen Road, Parkway Ind Estate, Plymouth PL6 8LH | 01752 548143 | 0870 005 3312 | http://www.tamartelecommunications.co.uk/ |
| Karoo Communications | http://www.karoo.co.uk/ | |||
| KBS Communications | ||||
| KC | http://www.k-c.co.uk/ | |||
| KCom | http://www.kcom.com/ | |||
| KCOM Group PLC | 37 Carr Lane, Hul, HU1 3RE | 01482 602100 | 01482 607007 | http://www.kcomplc.com/ |
| KCT Group | Cheshire House Market Street Disley Cheshire SK12 2AA | 0844 277 7777 | ||
| KDD Europe Ltd | Atlas House, 1 King Street, London, EC2V 8AU | 020 7507 0001 | 020 7507 1102 | http://www.kddi.com/english/ |
| KeConnect Group Ltd | Westgate House, Museum Street, Ipswich, Suffolk IP1 1HQ | |||
| Kee Support Ltd | Broughton Grange Business Centre The Headlands Kettering Northants NN15 6XA | 01536 311640 | ||
| Kent Telephones Ltd | 103 Grosvenor Place, Margate, Kent CT9 1UX | 01843 232777 | 01843 220600 | http://www.kent-telephones.com/ |
| Kenton Research Ltd | Innovation House Unit 19 Bourne Ind Park Crayford Kent DA1 4BZ | 01322 552000 | ||
| Key Account Management Ltd | http://www.kamltd.com/ | |||
| Key Telecoms Ltd | PO Box 465, Bury, Lancs BL8 9BT | 0161 353 2000 | 0161 353 2005 | http://www.keytelecoms.co.uk/ |
| Keycom PLC | ||||
| Keynote Technologies Ltd | 271 Regent Street, London W1B 2ES | 0845 6522040 | ||
| Keysystems EC2 Ltd | 7 Cuckoo Hill Road Pinner, Middlesex HA5 1AS | 020 8866 5698 | ||
| Keytel Ltd | The Studios Lea Hall Enterprise Park Rugeley, Staffordshire WS15 1LH | 08707 333 111 | ||
| Keytel Direct Ltd | The Levels Redbrook Lane Rugeley Staffordshire WS15 1RD | 0844 669 3666 | ||
| Keytel Media Ltd | The Studios Lea Hall Enterprise Park Rugeley Staffs WS15 1LH | 08707 333 111 | ||
| Khalil Telecom Pvt | ||||
| Kilbryde Communications Ltd | ||||
| Kingdom Telecom Ltd | 7 Oaksmead Caterton, Oxon OX18 1JX | 01993 846 008 / 07506 405 852 | ||
| Kingdom Telecom.Net | http://www.kingdomtelecom.net/ | |||
| Kingston Comms KC Talk On-Net | http://www.kcomplc.com/ | |||
| Kingston Comms KC TalkMore Off-Net | http://www.kcomplc.com/ | |||
| Kingston Communications | 37 Carr Lane, Hul, HU1 3RE | 01482 602100 | 01482 607007 | http://www.kingstoncommunications.com/ |
| Kiss Telecom Ltd | The Coach House, Alderley Road, Wilmslow, Cheshire SK9 1QA | 0845 017 6700 | 0845 017 6701 | http://www.kisstelecom.co.uk/ |
| KLCO Ltd | 23a Ongar Road, London SW6 1RL | 0845 880 3939 | ||
| Known Communications | ||||
| Known Future | Harvard House 29 Cornwall Road Harpenden Hertfordshire AL5 4TQ | 020 7100 6370 | ||
| Kohima Consultants Ltd | 54B Bawtry Road, Doncaster DN4 7BQ | 01302 535999 | ||
| Koicoms Ltd | 160 Hope Street, Glasgow G2 2TJ | 0141 433 1265 | ||
| Koris Ltd | 1 Poultry, London EC2M 8JR | 0845 094 8484 | ||
| KS Telecom Ltd - | 22 Roman Road, Leeming Northallerton DL7 9SG | 08448 469688 | ||
| KT Information Technology Ltd | 228 Merton Road South Wimbledon, London SW19 1EQ | 020 8543 9118 | ||
| Ktalk2 Ltd | Oakpark Business Centre Alington Road St Neots Cambs PE19 6WA | 07850 706235 | ||
| Kube Get Virtualised | http://www.kubenetworks.com/ | |||
| Kube IT Solutions | http://www.kubeitsolutions.com/ | |||
| Kube Networks | http://www.kubenetworks.com/ | |||
| Kubenet | http://www.kubenetworks.com/ | |||
| L A Comms Ltd | Po Box 1595, Huddersfield HD1 9PJ | 0844 351 1399 | ||
| Lake Technologies | Woodville House Woodville Street, St Helens WA10 1ET | 01978 858541 | ||
| Lakeside Business Services Ltd | Keepmoat Stadium Stadium Way, Doncaster DN4 5JW | 01302 590001 | ||
| 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 | ||
| 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 | 0845 241 1166 | http://www.lansdownetelecom.co.uk/ |
| LANtec Services Ltd | 381 Carlton Hill, Nottingham NG4 1HW | 0844 844 0660 | ||
| Lanz Ltd | 37 East Road, London N1 6AZ | 020 7251 2000 | ||
| Larrytech Ltd | Calverley House 55 Calverley Road, Tunbridge Wells TN1 2TU | 01892 888 011 | ||
| Lascom Communications | Second Floor, One Crown Square Church Street East Woking Surrey GU21 6HR | 0870 890 1156 | ||
| Last Word Communications | Century Place Lamberts Road, Tunbridge Wells, Kent TN2 3EH | 0845 070 9007 | ||
| Lawyers On Line Ltd | Hereford House 3 Offa Street Hereford Herefordshire HR1 2LL | 0870 2247923 | ||
| Layer 47 Ltd | Cedar Court Grove Business Park Waltham Road Maidenhead, Berkshire SL6 3LW | 0870 626 4747 | ||
| LB Telecom & Data Ltd | Redfern House Dawson Street Hyde Cheshire SK14 1RD | 0845 296 2261 | ||
| 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 | ||
| Leading Edge Technology Ltd | 5 The Atrium 31 Church Road Ashford Middlesex TW15 2UD | 08456 447 949 | ||
| Leanwood Communications Ltd | Bath Road, Slough Berkshire SL1 4DX | 01753 360151 | ||
| Leapfrog Telecoms Ltd | Knutshaw House 930 Wigan Road, Bolton BL3 4RR | 0845 0766243 | ||
| Lebara Mobile | http://www.lebara-mobile.co.uk/ | |||
| Leeds Telecom Centre Ltd | 1st Floor Wellington House Sweet Street Leeds, West Yorkshire LS11 9DB | 0870 751 2828 | ||
| Legend | http://www.legend.co.uk/ | |||
| LegendTel LLC | ||||
| Leisure Link Group Ltd | 3 The Maltings Wetmore Road Burton-on-Trent Staffordshire DE14 1SE | 01283 512777 | ||
| Lekker-Tel | ||||
| Lemon Computing Ltd | Unit 9 26-28 Priests Bridge, London SW14 8TA | 020 8878 2138 | ||
| Lets Do Telecoms Ltd | 1st Floor 2 Woodbury Grove North Finchley London N12 0DR | 0845 459 8153 | ||
| Level 3 Communications Ltd | 44 Lyndhurst Avenue, Whitton, Twickenham, TW2 6BX | http://www.Level3.com/ | ||
| Lexgreen Services Ltd | 28 Marshcroft Lane, Tring, Herts H23 5PP | 0800 066 4700 | http://www.pre-dial.com/ | |
| Leycom Network Services Ltd | The Cambrian Complex Ystrad Road Fforestfach Swansea SA5 4HJ | 01792 564 341 | ||
| LGPtelco Ltd | Evans House 107 Marsh Road Pinner Middlesex HA5 5PA | 08445 457045 | ||
| Liberty Bell Network Services Ltd | Liberty Courts Chapel Street, Dukinfield, Cheshire SK16 4DT | 0161 609 1213 | ||
| Liberty Bell Voice & Data Ltd | 24 Fielden Court 245 Barlwo Moor Road Chorlton Manchester M21 7AY | 0161 6091234 | ||
| Liberty Solutions | 11 Pyle Road, Swansea SA3 3HH | 0845 077 0794 | ||
| Liberty-izone Ltd | Rivendell House 10 Church Road Guildford Surrey GU1 4NG | 0870 243 0465 | ||
| Lifestyle Communication Ltd | 33 The Hawthorns Outwood Wakefield West Yorkshire WF1 3TL | 07799 348 611 | ||
| LifestyleIT Ltd | 106 High Street Harrow on the Hill, Middlesex HA1 3LP | 020 8423 2244 | ||
| Lily Systems Ltd | Bedders Lodge Leicester Lane Great Bowden Leicestershire LE16 7HA | 01858 450441 | ||
| Linco Communications | Balmers Farm Plumpton, Penrith CA11 9NP | 0870 7775888 | ||
| Linctel Ltd | ||||
| Linear Telecoms | ||||
| Linix Ltd | Unit 88 Venture Point West, Liverpool L24 9PB | 0870 838 0700 | ||
| Link Connect Services Ltd | Moor Park House Moor Park Lane Farnham Surrey GU10 1QP | 08707 433 100 | ||
| Link Telecom Holdings Ltd | Airedale Buildings Scott Street Keighley West Yorkshire BD21 2SP | 07870 266612 | ||
| LinkUP Mitaka - T/A The Big Word | ||||
| Lion House (UK) Ltd | 1 The Granary Court Lodge Horton Road, Horton Kirby Dartford DA4 9BN | 01322 868606 | ||
| LionHeart Communications Ltd | Glan Yr Afon West Grove Lane Hndleton Pembrokeshire SA71 5RP | 0845 400 0008 | ||
| Liquid 11 | ||||
| Liquid Telecommunications Ltd | 1 Kingsway, London WC2B 6XF | 020 7101 6100 | 020 7101 6102 | http://www.liquidtelecom.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 | ||
| Liquidite Communications Ltd | 10 Stonor Henley-On-Thames, Oxon RG9 6HE | 0870 085 7224 | ||
| Lister Communications Ltd | Brunel Way, Stonehouse, Gloucester GL10 3SX | 01453 829 200 | http://www.lister-communications.co.uk/ | |
| LIVEWIRE | 87-89 Chapel Street, Salford, Manchester M3 5DF | 0870 750 760 | ||
| Livvys Consultants Ltd | Matrix House Basing View Basingstoke Hampshire RG21 4DZ | 0333 240 4000 | ||
| Lixxus Ltd | 10 Fenchurch Avenue, London EC3M 5BN | 0845 456 6303 | 0845 456 6306 | http://www.lixxus.co.uk/ |
| LKS Communications Ltd | 7 School Walk Papworth Everard, Cambs CB23 3XW | 07790 498 850 | ||
| Lleida.net Serveis Telematics | ||||
| LLG Solutions Ltd | 21 Kings Avenue Prestatyn, Denbighshire LL19 9AA | 01745-886954 | ||
| Lloyd Network Services Ltd | Unit 3 Montgomery Business Park 38 Montgomery Road Belfast BT6 9HL | 028 9040 0400 | http://www.lloydnetworks.co.uk/ | |
| Lloyds Business Communications Ltd | 109 Mere Grange Leaside Road, St Helens WA9 5GG | 0870 232 4500 | ||
| Lloyds Business Networks Ltd | 861-865 Birchwood Boulevard Birchwood Warrington Cheshire WA3 7QZ | 0870 232 4500 | ||
| Lloyds TSB Bank plc | Customer Care Ideal from Lloyds TSB PO Box 5875 Forres IV36 2YB | 0845 900 9000 | ||
| Local Expert Services Ltd | Unit 10b CockRidden Industrial Estate Brentwood Road Brentwood CM13 3LH | 01708 203 040 | ||
| Localphone Ltd | 4 Paradise Street, Sheffield S1 2DF | 0114 319 1919 | http://www.localphone.com/ | |
| Logical Focus Ltd | ||||
| Logicalis (UK) Ltd | 110 Buckingham Avenue, Slough Berks SJ1 4PF | 01753 777 200 | ||
| Logicom Systems Ltd | ||||
| LogicStar Ltd | ||||
| Logix Business Software Ltd | Conavon Court 12 Blackfriars Street, Manchester M3 5BQ | 0161 669 4671 | ||
| loko365 Ltd | Ioko365 Ltd 1 Innovation Close York Science Park York YO10 5ZD | 01904 438000 | ||
| London Central Communications | 81 Southwark Street London, SE1 0HX | 020 7981 0800 | ||
| London Digital Ltd | Vernon House, Sicillian Avenue, London WC1A 2QH | 020 7704 6600 | 020 7704 6351 | http://www.londondigital.com/ |
| London Executive | 65 York Street, London W1H 1PQ | 0870 334 4550 | ||
| London Facilities Ltd | ||||
| London Gateway Networks Ltd | Unit 15b, Star Industrial Estate Chadwell St Mary Essex RM16 4LR | 01375 363263 | ||
| London Voice and Data Exchange | ||||
| London Web Ltd | Security House Lismarrine Industrial Park Elstree Road Elstree WD6 3EE | 020 8349 4500 | ||
| Long Distance International Ltd | Alperton House, Bridgewater Road, Wembley, Middx HA0 1EH | 020 8900 1166 | http://www.ldi-uk.com/ | |
| Loop Scorpio | http://www.loopscorpio.net/ | |||
| Low Cost Travel Group | Second Floor Sussex House London Road East Grinstead, West Sussex RH19 1HH | 01342 305655 | ||
| Lowcoms Ltd | Commerce House Bridgeman Place, Bolton BL2 1DW | 01204-396140 | ||
| LTT UK Ltd | Suite 315, 2 Old Brompton Road, London SW7 3DQ | |||
| Lumison | http://www.lumison.net/ | |||
| Lycamobile | http://www.lycamobile.co.uk/ | |||
| 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.com/ | |
| Lynx Business Solutions Ltd | 8c Chelsfield Road Orpington, Kent BR5 4DN | 0871 575 2360 | ||
| Lyonsdown | 10 A Millway, London NW7 3RE | 020 8906 9011 | ||
| M 12 Solutions Ltd | 6 Manor Court Barnes Wallis Road Fareham Hants PO15 5TH | 0845 408 1212 | ||
| M&M International | 10 Burnham Lodge Oaksted Close Ipswich Suffolk IP4 4HJ | 01473 434 909 | ||
| M247 Ltd | 1 Ball Green Cobra Court, Manchester M32 0QT | 0161 615 1272 | http://www.M247.com/ | |
| MA Global Ltd | 53 Monument Chase Whitehall, Hampshire GU35 9QS | 07884 310 963 | ||
| 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/ | |
| MacLellan IT Ltd | Kathellan House Home Farm, Kelty KY4 0JR | 0845 833 1677 | ||
| MacNeil Training & Developments Ltd | 3 Carmunnock Road, Glasgow G44 4TZ | 0871 871 1992 | ||
| Madhouse Communications Ltd | 10-16 Scrutton Street, London EC2A 4RJ | 020 7880 7777 | http://www.madhousenet.co.uk/ | |
| Magicall Ltd | ||||
| Magma Business Solutions Ltd | 49 Austin Edwards Drive, Warwick CV34 5GW | 01926 350035 | ||
| Magnetic North Software | Solutions House Meridian East, Leicester LE19 1TP | 0870 112 4950 | ||
| Magrathea Telecommunications Ltd | Albany House, 14 Shute End, Wokingham, Berkshire RG40 1BJ | 0845 004 0040 | 0845 004 0041 | http://www.magrathea-telecom.co.uk/ |
| Mainlink Communications Ltd | Unit 19, Hedge End Business Centre Botley Road Southampton Hampshire SO30 2AU | 0845 345 3995 | ||
| Mainstream Digital Ltd | 201 Cirencester Business Park Love Lane Cirencester Glos GL7 1XD | 01285 644 858 | http://www.mainstreamdigital.co.uk/ | |
| Main-Tel (Ne) Ltd | Thorntree Farm Bassleton Lane Thornaby Stockton on Tees TS17 0PN | 01642 762202 | ||
| 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 | ||
| Mallott Installations | 28 Milton Avenue Braintree, Essex CM7 1AD | 0870 444 1041 | ||
| Malvern Ventures | ||||
| Managed Broadband Services | 1st Floor, Crown House Crown Road Grays Essex RM17 6JH | 0870 251 2599 | ||
| Managed Business Communications Ltd | Unit 2 Tennis Court Little Tennis Street Nottingham NG2 4EW | 0871 222 2290 | ||
| 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 | ||
| Mango Telecommunication Ltd | 5 North End Road, London NW11 7RJ | 020 8455 1997 | ||
| Manx Telecom | ||||
| Maple Communications | 73 Northease Drive, Hove BN3 8PP | 01273 417 170 | ||
| Maple Telecom | ||||
| Marathon Telecom | 28 Halkett Place, St Helier, Jersey JE2 4WG | |||
| Marina Telecom | Cherry Tree House Carmarthen Road, Swansea SA1 1HE | 01792 6530000 & 01437 760200 | ||
| Marketing Initiatives | ||||
| Marketstats Ltd | 74 Bentley Road Uttoxeter, Staffordshire ST14 7EN | 0870 1284333 | ||
| Marks and Spencer | http://www.marksandspencer.com/ | |||
| Mars Communications | ||||
| Marstons | http://www.marstons.co.uk/ | |||
| Marstons Telecoms Ltd | IT and Telecoms Dept Marston's House Brewery Road Wolverhampton WV1 4JT | 01902 711811 | ||
| MAS Networks Ltd | Sandstone Barn Handcross Road Plummers Plain Horsham, West Sussex RH13 6NU | 0800 0124 285 | ||
| Mason Information Technologies Ltd | 9 Churchill Park Colwick Nottingham, NG4 2HF | 0845 8800 635 | ||
| Mastercom Telecommunications Ltd | ||||
| Matrix Network | http://calls.matrixnetwork.co.uk/ | |||
| Matrix Platinum Ltd | http://www.matrix247.com/ | |||
| Max Talk Ltd | 2 Hillmans Court Coleraine, Co. Londonderry BT52 2DF | 02870 208 003 | ||
| Max Telecom UK Ltd | PO Box 608, Stalybridge, SK15 2WB | 0161 304 7731 | ||
| Maxim Eyes Ltd | 3rd Floor 56-58 High Street Sutton Surrey SM1 1EZ | 0870 753 2160 | ||
| 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 | ||
| Maximum Maintenance Uk Ltd | Holly House Shady Lane Great Barr Birmingham B44 9ER | 0121 3603775 | ||
| Maximum Networks (UK) Ltd | ||||
| Maximus Communications | 4th Floor Berwick House 8-10 Knoll Rise,, Orpington Kent BR6 0EL | 08704 445 560 | ||
| Maxteleco Ltd | Suite 3 Rays House North Circular Road, London NW10 7XP | 020 8965 9999 | ||
| Maxx Communication Ltd | ||||
| Mayflower plc | Communications House 61-65 Chapel Street Billericay Essex CM12 9LT | 01277 630 444 | ||
| MB System Networks Ltd | ||||
| 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 | ||
| Mc Technology Ltd | 47 Clumber Drive Radcliffe on Trent, Nottingham NG12 1DA | 07788 140285 | ||
| MDNX Group Ltd | St James House, Oldbury, Bracknell RG12 8TH | 01344 543700 | http://www.mdnx.com/ | |
| MDNX Managed Services Ltd | Sugarbond 2 Anderson Place, Edinburgh EH6 5NP | 0870 9061111 | ||
| MDS Telecommunications | ||||
| ME Consultancy Ltd | Millbarn 27-29 Claywell, Huddersfield HD7 4JD | 01484 465160 | ||
| 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 | 1 Brittens Court, Clifton Reynes, Milton Keyes MK46 5LG | 0844 411 7136 | 0845 122 2274 | http://www.mediahawk.co.uk/ |
| Media Now | ||||
| Media Telecom | ||||
| MediaSat3 Ltd | 779 Hessle Road, Hull HU4 6QE | 0845 475 2508 / 0845 475 2509 | ||
| Medius Networks | ||||
| Megacall Ltd | The Mamor House 10 St. Margaret's Green Ipswich Suffolk IP4 2BS | 01473 281000 | ||
| Melbek Telecom | Bay House 20-22 Market Place Saxmundham Suffolk 1P17 1AG | 0151 326 2240 | ||
| Melrose Next Ltd | Cambridge House, 67-69 Woodham Lane New Haw Surrey KT15 3ND | 0870 111 8080 | ||
| Mend My Computer | http://www.mendmycomputer.com/ | |||
| Meppen Services Ltd | Weetwood Grove Mansion Weetwood Lane, Leeds LS16 5PJ | 0113 2300297 | ||
| Mercia RadioTelephones | http://www.merciaradio.co.uk/ | |||
| Mercury UK | 3 Rosewood Westhoughton, Bolton BL5 2RX | 0844 412 8580 | ||
| Mercury3 Ltd | 206 White Lane, Sheffield S12 3GL | 0870 4204858 | ||
| Merlin Telecommunications Ltd | 3 Cook Close Brompton on Swale, Richmond DL10 7TY | 0800 8778 810 | ||
| Merula | 25-31 Huntingdon Street St Neots, Cambridgeshire PE1 1BG | 01480 222940 | http://www.merula.net/ | |
| Metafonic | http://www.metafonic-group.com/ | |||
| Metrodata Ltd | Fortune House Eversley Way Egham Surrey TW20 8RY | 01784 744 700 | ||
| MF Communications (UK) LLP | http://www.mfcomm.co.uk?/ | |||
| MF Communications UK LLP | Unit 38 Chapmans Way Tunbridge Wells Kent TN2 3EF | 01892 514 687 | ||
| MFG Communications Ltd | Unit 19 Theale Lakes Business Park Sulhamstead Berkshire RG7 4GB | 01189 148 800 | ||
| MHA Trading Ltd trading as MHA Telecom | MHA Trading Ltd, trading as MHA Telecom Building 3, Chiswick Park, Chiswick High Road London W4 5YA | 020 3008 2567 | ||
| Micro VoIP | http://www.microtalk.co.uk/ | |||
| Microcare Systems Ltd | Microcare Systems Ltd Hamilton Systems Ltd Warth Road, Bury Lancs BL9 9NB | 0800 515513 | ||
| Microcomms Professional Services Ltd | The Hub Building Tredrea Manor Tredrea Lane St Erth, Cornwall TR27 6HD | 01209 843636 | ||
| Micron Communications | Unit 5&6, Bartlett Court Lynx Trading Estate Yeovil Somerset BA20 2NZ | 0870 787 2001 | ||
| Microtalk UK Ltd | Gormley House, Waxlow Road, London NW10 7NU | 0800 814 4404 | http://www.microtalk.co.uk/ | |
| Microtec 99 Ltd | Unit p1/6 Heywood Distribution Park, Lancs | 01706 694 000 | ||
| Midas Telecom Ltd | 82-84 York Road, Bristol BS3 4AL | 0117 963 8249 | 0117 963 8252 | http://www.midastelecom.com/ |
| Midi & Minerva Trading Company LLC | ||||
| Midland Communications Company Ltd | Orchard Works Backfields Upton upon Severn Worcestershire WR8 OJH | 0800 138 3227 | ||
| Midland Phone Services Plc | Shaw House Wychbury Court Brierley Hill West Midlands DY5 1TA | 01384 47888 | ||
| Midland Telecom | 255 Hospital Street, Birmingham B19 2YF | 0800 652 5375 | http://www.midland-telecom.com/ | |
| Midland Telecom Networks Ltd | 255 Hospital Street, Birmingham B19 2YF | 0121 270 7098 | ||
| Midland Telecommunication Management | http://www.midland-telecom.com/ | |||
| Midland TML Ltd | 255 Hospital Street, Birmingham B19 2YG | 0121 333 3488 | ||
| Midlands Finance Ltd | West Midlands House Gipsy Lane, Willenhall WV13 2HA | 0871 310 8308 | ||
| Midnight-online (UK) Ltd | Midnight-online (OK) Ltd 16 Greenlands Flackwell Heath Bucks HP10 9PL | 07958 103764 | ||
| Midshire Business Systems (Communications) Ltd | 95-97 Cato Street, Nechells, Birmingham B7 4TS | 0121 359 5559 | ||
| Midus Communications Ltd | Midus House 9 Hummingbird Close Bury St Edmunds Suffolk IP32 7GR | 01284 704 339 | ||
| Midus Venture Capital Ltd | St Andrews Castle St Andrews Street South Bury St Edmunds Suffolk IP33 3PH | 08445 499222 | ||
| Milenta Ltd | ||||
| Millenium Communications Ltd | Jupiter House Drummond Road Astonfields Industrial Estate Stafford ST16 3HJ | 0845 873 7335 | ||
| Millennia Telecom Solutions Ltd | Jupiter House Drummond Road, Stafford ST16 3HJ | 0845 241 2728 | ||
| Millennium Telecom Ltd | 17 Midland Court Oakham, Rutland LE15 6RA | 0870 179 0870 | ||
| Miller Waite Broadband | http://www.millerwaite.com/ | |||
| Millfield Management Services Ltd | ||||
| Minotaur IT | ||||
| MINT network Ltd | 10 Beaumont 6 St. John's Avenue, London SW15 2AF | 07810 433 939 | ||
| Mintaka | Mintaka Limited 12 York Gate Regent's Park London NW1 4QS | 020 7153 6933 | ||
| MinuteBuyer Corporate Services Ltd | 64 Lower Mount Street, Dublin 2 Ireland | +353+1 661 4697 | ||
| Minutes Ltd | 2nd Floor 40-46 Dale Street, Liverpool L2 5SF | 0870 755 5175 | ||
| 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 | ||
| Mistral Internet Group Ltd | 5th Floor, Tower Point, 44 North Road, Brighton BN1 1YR | |||
| MJC Group Ltd | MJC Group 12 York Street Stourport on Severn Worcestershire DY13 9EF | 0845 271 8000 | ||
| MJComputers Ltd | 9 Nuneaton Road Fillongley, Coventry CV7 8EZ | 0845 1230400 | ||
| MJR Computer Consultants | 138 Worksop Road Swallownest, Sheffield S26 4WE | 0114 287 8825 | ||
| M-Line Telecoms Ltd | 12 Trinity Crescent, London SW17 7AE | 0800 980 5090 | 0800 980 5091 | http://wwww.mline.gb.net/ |
| M-Line Telecoms Ltd | ||||
| MLL Telecom Ltd | Park House, 5 Mere Park, Dedmere Road, Marlow, Bucks SL7 1FJ | 01628 474737 | ||
| MLM Messaging Ltd | Studio House, Mount Street New Basford, Nottingham NG7 7HX | 0115 9192030 | ||
| MM Communications Ltd | Blythe Valley Innovation Centre Central Boulevard Blythe Valley Park Solihull, West Midlands B90 8AJ | 08700 621035 | ||
| MMC Broadband | http://www.mmcbroadband.com/ | |||
| MNT Technologies | 77 King Street, Dundee DD1 2JY | 01382 250101 | ||
| Mobifon Ltd | The Millhouse Station Road Castle Donington Derbyshire DE74 2NJ | 0845 270 2480 | ||
| 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 Communications 2000 Ltd | Four Oaks House 160 Lichfield Road Four Oaks Sutton Coldfield B74 2TZ | 0871 288 5158 | ||
| MobileWorld | http://www.mobileworld.co.uk/ | |||
| Mobilshop.com Ltd | Millenium House Fox Covert Lane Misterton Doncaster, South Yorkshire DN10 4ER | 0844 544 9030 | ||
| Mobotel Ltd | 91 Peterborough Road Matrix Studio Complex, London SW6 3BU | 0870 264 7770 | ||
| Modern Communications Ltd | 26 Grays Inn Road, London WC1X 8HR | 0870 444 9891 | http://www.modcomms.com/ | |
| Modrus Ltd | 9 Nimrod Way, Wimborne Dorset BH21 7SH | 0845 22 55 016 | ||
| Modus Telecom | 70 Wragby Road, Lincoln LN2 4PH | 0870 871 7871 | 0870 871 2871 | http://www.modustelecom.com/ |
| Mondial Services Ltd | Unit 112 94 Londno Road Headington Oxford OX3 9FN | 01865 750 869 | ||
| Money Saver Telecom Ltd | Tannery Court Tanners Lane Warrington Cheshire WA2 7NR | 01925 401 702 | ||
| Moneypenny | Elice House Elice Way, Wrexham LL13 7YT | 01978 367400 | ||
| Moonshado Inc | ||||
| Moorecom Ltd | The Old Granary 29 Churchgate Street Old Harlow Essex CM17 0JT | 01279 429222 | ||
| MoorTalk Ltd | Barn 2b South Courtyard Dunston Business Village Dunston Staffs ST18 9AB | 0845 862 0688 | ||
| Mootel | http://www.mootel.co.uk | |||
| Morecom Ltd | Unit 5-7 Park Gate Industrial Estate Pontypool Torfaen NP4 8AJ | 01495 755555 | ||
| Morgan Brookes Networks | 207 Marsh Wall Docklands, London E14 9YT | 020 7001 9999 | http://www.mbnetworks.com/ | |
| Morgan Telecom | 254 Dublin Road Kileen, Newry BT35 2NL | 0044 77885 86230 | ||
| Morpheus Computer Technologies Ltd | Liss BusinessCentre Station Road Liss Hampshire GU33 7AW | 01730 894 834 | ||
| MosCom | http://www.moscom.co.uk/ | |||
| 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 | 01827 313349 | ||
| MotionTel Ltd | 27 Redan Place, London W2 4SA | 020 7727 0222 | ||
| Mountain Telecom | ||||
| MPC London Ltd | 2 The Drive Rickmansworth, Herts WD3 4EB | 01923 779777 | ||
| 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 | ||
| Multi Dimensional Networks Ltd | 15/16 Cowell Street, Llanelli SA15 1AQ | 02921 197 001 | ||
| Multidata (Europe) Ltd | Unit 2 Orchard Business Park Shrivenham Swindon SN6 8EY | 0845 555 3322 | ||
| Multilink Business Communications Ltd | 10 Ladysmith Road, Enfield, Middlesex EN1 3DT | 020 8350 2120 | ||
| Mundio Mobile Ltd | 54 Marsh Wall, London E14 9TP | 020 7179 0134 | http://www.vectonemobile.co.uk/ | |
| 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 | ||
| Mussel Club Business Solutions Ltd | 27 Lime Grove Ryton, Tyne & Wear NE40 3RH | 0191 4132642 | ||
| m-viron (Staffs) Ltd | 64 High Street Stone, Staffordshire ST15 8AU | 0845 004 2066 | ||
| MW Network Services Ltd | 145-157 St Johns Street, London EC1V 4PW | 0845 689 0693 | ||
| MX Digital Ltd | Suite1 Gatwick House Peeks Brook Lane Horley RH6 9ST | 0870 777 2008 | http://www.mxdigital.co.uk/ | |
| My Communications Ltd | 27 Old Gloucester Street, London WC1N 3AX | 08444 100 015 | http://www.mycomms.co.uk/ | |
| My Mondo | http://www.mymondo.co.uk/ | |||
| Mycallhome | http://mycallhome.com/ | |||
| MyComms Ltd | 2 Primrose Close, London N3 2RU | 08709 196 535 | ||
| Mynd Communications Ltd | 41 Bancroft Avenue, LONDON N2 0AR | 0870 0600 610 | ||
| MyOnlineSpace.Com | Elm Field Toddington Lane Littlehampton West Sussex BN17 6JX | 0845 450 8586 | ||
| MyVoipTraffic | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | https://www.myvoiptraffic.com/ | |
| NAC Communications Ltd | Suite S6 26 Forth Street, Edinburgh EH1 3LH | 0131 550 3742 | ||
| NAC Engineering Services UK Ltd | 1-2 Thistle Court Thistle Street, Edinburgh EH2 1DD | 0131 240 8200 | ||
| NAC Networks Ltd | 9/10 St Andrews Square, Edinburgh EH2 2AF | |||
| NAC Networkz Ltd | 2 Walker Street, Edinburgh Scotland EH3 7LB | 0808 168 4448 | ||
| Namesco Ltd | Acton House Perdiswell Park, Worcester WR3 7GD | 0845 3633630 | ||
| NAS UK Ltd | South Court Sharston Road, Manchester M22 4SN | 0870 8034654 | ||
| National Comserv | ||||
| National Power Energy Company | Windmill Hill Business Park, Whitehill Way, Swindon SN5 6PB | |||
| NationTel Ltd | 27 Redan Place, London W2 4SA | 020 7727 0222 | ||
| Nationwide Residential Ltd | Cyprus House, 94-96 Cyprus Road, Leicester LE2 8QS | 0116 283 8880 | http://www.telecomgb.co.uk/ | |
| Nationwide Telephone Assistance | Ivy Lodge Farm 179 Shepherds Hill Harold Wood Romford, Essex RM3 0NR | 01708 320000 | ||
| NBCN plc | Unit 8 Scotlands Industrial Estate London Road Coalville LE67 3JJ | 0844 375 5730 / 01332 647716 | ||
| NBCN Networks | ||||
| NCS Group Ltd | 65 Rodney Street, Glasgow G4 9SQ | 0141 353 0000 | ||
| NCS Network Communications Solutions | http://www.ncs-ltd.com/ | |||
| NDV Solutions Ltd | 27 Old Gloucester Street, LONDON WC1N 3XX | 0870 389 0010 | ||
| Need More Time | ||||
| Nemesis Networks Ltd | Switch House Northern Perimeter Road Netherton Liverpool, Merseyside L30 7PT | 0151 5317733 | ||
| Nene Communications Ltd | Unit 8 Orton Enterprise Centre Bakewell Road Orton Southgate Peterborough PE2 6XU | 01733 235 000 | ||
| Neos Comms | 207 Liverpool Road Cadishead, Manchester M44 5BZ | 0161 7778 8111 | ||
| NeoWave Distribution (UK) Ltd | NeoWave House Shadowbrook Lane, Hampton in Arden B92 0DL | 0121 345 8345 | ||
| Nessco Ltd | Willow House Kestrel View, Bellshill ML4 3PB | 01698 741 510 | ||
| Net 366.Com | ||||
| Net Global Ltd | 232B The Broadway, London NW9 7ED | |||
| Net Logix Ltd | 32 Threadneedle Street, London EC2R 8AY | 020 7709 9033 | ||
| Net Pro | 1 Carnany Court, Ballymoney BT53 7ER | 07783 793606 | ||
| Net Solutions Europe | ||||
| Net Support UK Ltd | Riverside Court Beaufort Park Way, Chepstow NP16 5UH | 02920 029 100 | ||
| Netcall Communications | Netcall House 1 Warrior Square Southend Essex SS1 2JN | 01702 615 715 | ||
| Netcall Solutions Ltd | 115 Victoria Road Ferndown, Dorset BH22 9HU | 0800 840 4111 | ||
| NetCalls4Less | http://www.netcalls4less.com/ | |||
| Netcloud9 | http://www.netcloud9.co.uk/ | |||
| Netco Networks Ltd | 101 High Street Tring, Herts HP23 4AB | 01442 381 381 | ||
| Netcom (Wales) Ltd | Unit 27 Enterprise Way Newport Gwent NP20 2AQ | 0844 967 0900 | ||
| Netcom Solutions & Services Ltd | Coveham House Downside Bridge Road Cobham Surrey KT11 3EP | 01932 588774 | ||
| Netcom Technologies Ltd | 2 Brookfield Yard Sheffield, S7 1DW | 0871 2300417 | ||
| Netcomm UK Ltd | Unit 1 Landown Industrial Estate Gloucester Road Cheltenham GL51 8PL | 01242 539 523 | ||
| Netconnection Systems Ltd | Green Dragon House 64-70 High Street, Croydon CR0 9XN | 020 8649 6200 | ||
| Netdatatel Ltd | 4 North Guildry Street, Elgin IV30 1JR | 01343 811 800 | ||
| Netkonect Communications PLC | Opus House, Manor Court, Herriard, Basingstoke, Hants RG25 2PH | 0870 0635555 | http://www.netkonect.co.uk/ | |
| 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 | ||
| Netscalibur UK | ||||
| NetServices Plc | 30 Mowden Rd Sandpiper Quay, Salford M3 3EZ | 0870 1630 143 | ||
| Netsmart | ||||
| Net-Telco | http://www.net-telco.net/ | |||
| Net-Voice | http://www.net-voice.net/ | |||
| Net-Work | http://www.net-work.net/ | |||
| Network Billing Services (NBS) Ltd | Network House 36-38 Thornhill Park Road, Southampton SO18 5TQ | 023 8047 5900 | ||
| Network Business Call Ltd | 57 London Road, Enfield, Middlesex EN2 6SW | 020 8370 8370 | http://www.nbcnetworks.co.uk/ | |
| Network Connect Ltd | Egret Mill 162 Old Street Ashton Under Lyne Lancashire OL6 7ST | 0161 2142000 | ||
| Network Europe Group Ltd | 14 The Capricorn Centre Cranes Farm Road Basildon Essex SS14 3JJ | 08444 771 771 | ||
| Network I Ltd | 227 Berwick Avenue Slough, Berkshire SL1 4QT | 020 8230 2113 | ||
| Net-Work Internet | Technology House Rhewl Ruthin Denbighishire LL15 1TN | 01824 708 780 | ||
| Network Partners Ltd | Innovation House Millbrook Business Park Mill Lane Rainford WA11 8LZ | 01744 887950 | ||
| Network Rail Infrastructure | ||||
| 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 Telecom | http://www.networktelecom.co.uk/ | |||
| Network Telecom (Europe) Ltd | 77 South Audley Street, London W1K 1JG | 020 7499 7272 | http://www.n-telecom.com/ | |
| NetworkEdge Ltd | The Meridian 4 Copthall House Station Square Coventry CV1 2FL | 0191 303 8648 | ||
| 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 | ||
| Networks Plus Ltd | 38 Hill View, Stratford Upon Avon CV37 9AY | 0844 8793 425 | ||
| Networks United LLP | Salisbury House 81 Hight Street Potters Bar, Hertfordshire EN6 5AS | 020 8447 7777 | ||
| Networth Telecom | 33 Avenue Duquesne, 75007 Paris, France | +33 144 117115 | ||
| Neural Telecommunications (UK) | ||||
| New Call Telecom Ltd | 6 Snow Hill, London EC1A 2AY | 0800 036 0094 | http://www.newcalltelecom.co.uk/ | |
| New Concept UK Ltd | 2nd Floor Cunard Building Water Street, Liverpool L3 1DS | 0800 542 5005 | ||
| New England Telephone Company Ltd | 101 High Street Tring, Herts HP23 4AB | 01442 383 381 | ||
| New Forest Telecom | 1st Floor, Coronation House Queen Street Lymington Hampshire SO41 9NH | 01590 688 666 | ||
| New Land Solutions Ltd | 102 Marmion Road, Southsea PO5 2BB | 0845 130 4289 | ||
| New Prospect Business Solutions Ltd | 29 Welbeck Road, Maidenhead Berkshire SL6 4EB | 0870 116 7676 | ||
| New World Network Services Ltd | 177 Hook Road Surbiton, Surrey KT6 5AR | 0208 407 5757 | ||
| New World Telecom (UK) Ltd | ||||
| NewFox Ltd | 20 Baildon Mill Northgate Baildon West Yorkshire BD17 6JX | 01274 294 074 | ||
| NewNet | Carnac Lodge Cams Hall Estate, Fareham PO16 8UJ | 01329 226 722 | http://www.newnet.co.uk/ | |
| News Optimus Ltd | Grant Way, Isleworth, Middx TW7 5QD | http://www.newsoptimus.co.uk/ | ||
| NewTel Communications | 29 Harley Street London, W1G 9QR | 0800 279 3596 | http://www.newtel.net/ | |
| Newtel (Guernsey) | ||||
| NewTel Communications Ltd | 29 Harley Street, London W1G 9QR | 0800 279 3596 | http://www.newtel.ie/ | |
| NewVoiceMedia | http://www.newvoicemedia.com/ | |||
| NewWave Broadband Ltd | 93 George Street, Edindurgh EH2 3ES | 0131 240 1232 | ||
| Nexbridge Communications Ltd | Metropolitan House, Station Road, Cheadle Hulme, Cheshire SK8 7AZ | 0161 486 7780 | http://www.nexbridge.co.uk/ | |
| Nexcom Communications Ltd | 5 Cumbrian House 217 Marsh Wall, London E14 9FJ | 020 7517 0990 | ||
| Nexsis Comms Ltd | 59 Longfield Lane IIkeston, Derby DE7 4DX | 08000 803080 | ||
| 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 | ||
| Next Telecommunications | ||||
| Nextcall Telecom PLC | 10 Stratton Street, London, W1X 5FD | 020 7731 3300 | 020 8731 3355 | http://www.nextcall.co.uk/ |
| Nextiraone UK Ltd | Aldershaw Hill Claypit Lane, Lichfield WS14 0AQ | 01276 804 074 | ||
| Nexus IP Ltd | 278 Chase Road, Southgate N14 6HA | 0345 200 1770 | ||
| Nexus Telecommunications Ltd | Zicon House, Belgrave Street, Leeds LS2 8DD | 0844 414 2001 | 0844 414 2002 | http://www.nexusuk.com/ |
| Nexus Unity Ltd | Lower Ground Floor Zicon House Belgrave Street Leeds LS2 8DD | 08701 22 33 23 | ||
| NG Business Systems | ||||
| NG Network Consultancy | ||||
| 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 Telecoms Ltd | 52 Grosvenor Gardens, London SW1W 0AU | 020 7824 5152 | ||
| NGO Consulting Ltd | Carlow Heathview Road Milford Godalming GU8 5DF | 01428 792 222 | ||
| NIAD Communications Ltd | ||||
| Nimans Ltd | 1st Floor Unit 6 Temple Point Finch Drive Leeds LS15 9JL | 0844 848 0965 | https://secure.nimans.net/ | |
| Nine Telecom Ltd | Marlbridge House Enterprise Way Edenbridge Kent TN8 6HF | 0800 970 2999 | http://www.ninetelecom.co.uk/ | |
| Nine Telecom Wholesale Ltd | Marbridge House Enterprise Way Edenbridge Kent TN8 6HF | 0800 970 2999 | ||
| NITEL | ||||
| Nix Communications Group Ltd | Unit 8 Wichester Hill Business Park Winchester Hill Romsey Hants SO51 7UT | 0844 318 5000 | ||
| NJP Services | 61 London Road Blackwater, Camberley GU17 0AB | 0871 424 0185 | ||
| NM2 Ltd | Number Exchange Half Moon House Barrows Lane Heysham LA3 2RP | 0844 4488505 | ||
| Noble IT Solutions Ltd | Summersong Ashburton Road Bovey Tracey Newton Abbot TQ13 9BZ | 0845 868 5140 | ||
| Noble Telecom Ltd | Westbury House Business Centre, 630 Woodbridge Road, Ipswich IP4 4PG | 01473 706930 | 01473 723489 | http://www.nobletelecoms.co.uk/ |
| Noble Telecom Ltd | Westbury House 630 Woodbridge Road Ipswich Suffolk IP4 4PG | 01473 706 930 | ||
| Node4 | Millennium Way Pride Park, Derby DE24 8HZ | 0845 132 2222 | ||
| Nodemax Ltd | Glenwood, Nathans Lane, Chelmsford CM3 1 RF | 020 3390 1000 | 0845 387 9000 | http://www.nodemax.com/ |
| Nomi (White Nights Telecomunicações e Serviços Lda) | Rua 31 de Janeiro, Funchal, Madeira | 0845 604 7744 | http://www.nomi-dial.com/ | |
| Nomis Connections Ltd | 17 The Enterprise Centre Coxbridge Business Park Alton Road Farnham GU10 5EH | 0845 4505065 | ||
| Norcom Direct Ltd | 3 Charter Gate Moulton Park, Northampton NN3 6QF | 01604 679 250 | ||
| Norisco Ltd | 60 Tabernacle Street, London EC2A 4NB | 020 7324 2200 | ||
| 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 | 020 7575 7501 | |
| North East Communications Ltd | Unit 5 Fairfield Ind Park Bill Quay Gateshead NE10 0UR | 0191 4697945 | ||
| North London Telecom Services Ltd | ||||
| North West Telecom Ltd | New Brunswick Street, Horwich, Bolton BL6 7JB | 0870 872 4130 | ||
| North West Telecommunications Ltd | ||||
| North West Telecoms LLP | Panad House Alvaston Business Park, Nantwich CW5 6PF | 01270 618 520 | ||
| Northamber PLC | ||||
| Northarbour Ltd | Kao Hockham Building Edinburgh Way Harlow Essex CM20 2NQ | 0845 862 0762 | ||
| Northern Telecom Ltd | 23 Glencroft Avenue Uddingston, Lanarkshire G71 6EF | 01698-305285 | ||
| Northern Telecommunications Ltd | ||||
| Northway Communications Services (UK) Ltd | Unit 1 Stations Drive Bredon Tewkesbury Gloucestershire GL20 7HH | 01684 878060 | ||
| 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 Telecom | ||||
| Novarise Associates Ltd | 2 China Street, Fenton Stoke on Trent ST4 3NJ | 01782 450311 | ||
| Novatech Ltd | Harbour House Hamilton Road Cosham Hampshire PO6 4PU | 023 9232 2762 | ||
| Novosco Ltd | Agar House 31 Ballynahinch Road, Carryduff BT8 8EH | 028 9081 7171 | ||
| Now Mobile | http://www.nowmobile.co.uk/ | |||
| Nowcomm Ltd | The Nowcomm Building Stanier Way Wyvern Business Park Derby DE21 6BF | 01332 821 100 | ||
| Nowtel UK | ||||
| Nowtel Wholesale Ltd | Anchor Brewhouse, 50, Shad Thames, London SE1 2LY | 0871 332 9189 | http://www.nowtelcards.com/ | |
| NPlusOne | http://www.nplusone.net/ | |||
| Npower Ltd | Windmill Hill, Business Park, Whitehill Way, Swindon SN5 6PB | 01793 877777 | http://www.npower.com/ | |
| NRG Telecom Ltd | Lower Ground Floor 33 Princess Street, Rochdale OL12 0HA | 0845 120 0270 | ||
| NSIS Systems LLP | 405 Strand, London WC2R 0NE | 020 7240 4942 | ||
| NT Independent Networks Ltd | The Business Park Technology Drive, Beeston, Nottingham NG9 2ND | 01159 517 000 | ||
| NT Telecom Ltd | 15 Titan Way Britannia Enterprise Park Lichfield Staffordshire WS14 9TT | 01543 305050 | ||
| NTE Ltd | 1 Faraday Road Northeast Industrial Estate Peterlee County Durham SR8 5AP | 0191 518-8008 | http://www.ntecoms.com/ | |
| n-Tel Communications | ||||
| NTTCable UK Ltd | Cilpost Farm Cwmfelin Boeth Whitland Carns SA34 0RP | 01944 241315 | ||
| Number Cloak | http://www.numbercloak.com/ | |||
| Number Shop | ||||
| Number Solutions | ||||
| numbergroup | http://www.numbergroup.com/ | |||
| Numbergroup Network | Box No 53, 27 Colmore Row, Birmingham B3 2EW | 0800 310 1010 | 0800 310 1011 | http://www.numbergroup.com/ |
| Numbers Direct Ltd | ||||
| Numbers Plus | ||||
| Numbers Telecom Ltd | ||||
| Numeric Futures Ltd | 170 Holliday Street, Birmingham B1 1TJ | |||
| NWP Spectrum Ltd | PO Box Hemel Hempstead, Herts HP2 4WA | 01442 205 500 | ||
| Telefónica UK Ltd | 260 Bath Road, Slough SL1 4DX | 01753 628835 | http://www.o2.co.uk/ | |
| Oak Telecom Ltd | 7 Albany Park Cabot Lane Poole Dorset BH17 7BX | 01202 607 000 | ||
| Oakstream Communications Ltd | ||||
| Oasis Communication Services Ltd | 27 Nevill Street, Abergavenny NP7 5AA | 029 2061 5588 | ||
| Oasis One Ltd | Oak House Groes Lwyd Abergele Conwy LL22 7SU | 01745 828428 | ||
| O-Bit Telecom Ltd | Park House, 38 Station Road, High Wycombe, Bucks HP10 9UN | 0800 849 4949 | 0800 849 2929 | http://www.o-bit.net/ |
| Obsidian Group | http://www.obsidiangroup.net/ | |||
| OC Communications | 3 Hazel Grove, Dinas Powys, Cardif CF64 4TE | 0845 458 8485 | 0870 164 5375 | http://www.occuk.co.uk/ |
| Ocean Data & Voice Services Ltd | 2 Ocean Quay Marina Belvidere Road, Southampton SO14 5QY | 0845 050 5656 | ||
| Ocean Telecom UK Ltd | Unit 1 Glovers Meadow Oswestry Shropshire SY10 8NH | 01691 661 177 | ||
| Ocean Voice and Data Ltd | 6 The Matlings Hoe Lane Ware Hertforshire SG12 9LR | 0870 2202768 | ||
| Oceanlight Communications Ltd | ||||
| OCIS LITE | Communications House 95 Boston Road, Leicester LE4 1AW | 0870 165 0005 | ||
| OciusB2 | The Heath Runcorn, Cheshire WA7 4QF | 08707 578700 | ||
| Octagon Communications Ltd | Octagon House 2 Astley Court Lockett Road Ashton-in-Makerfield WN4 8DE | 08456 787878 | ||
| Odyssey Systems | Lockheed Court, Preston Farm, Stockton-on-Tees TS18 3SH | 01642 661800 | 01642 661801 | http://www.odyssey-systems.co.uk/ |
| OERS Ltd | 32 Birchdale Avenue Heald Green Cheadle Stockport SK8 3ST | 0161 436 0625 | ||
| Office Comms Ltd | Unit 44 Tondu Enterprise Centre Bryn Road Tondu Bridgend CF32 9BS | 08449 670 808 | ||
| Office Communications (Wales) Ltd | Unit 22, Brynmenyn Business Centre St Theodores Way Brynmenyn Ind Est Bridgend CF32 9TZ | 08444 990010 | ||
| Offline GSM Ltd - | 47 Prior Street, Lewes East Sussex BN7 1HJ | 0870 7584465 | ||
| Ogilvie Communications | Ogilvie Communications Ogilvie House 200 Glasgow Road Stirling FK7 8ES | 01786 810 810 | ||
| Oh Telecom | http://www.ohtele.com/ | |||
| OHS Technology Ltd | St George's Tower Hatley St George Sandy Beds SG19 3SH | 08702 430 861 | ||
| Olive Fixed Line Services Ltd | 1st Floor, Tal House 575 North End Road Wembley Middx HA9 0UU | 0870 444 1083 | ||
| Omega Telecom Ltd | 111 Victoria Road East Thronton - Cleveleys, Lancs FY5 5HQ | 0870 046 0050 | ||
| Omnia Solutions Ltd | 47 Park Road North Urmston, Manchester M41 5AT | 0845 309 6066 | ||
| Omnitech Integrations Ltd | ||||
| On Air Telecom Ltd | Westpoint 501 Chester Road, Manchester M16 9HU | 0161 9060845 | ||
| On Direct Business Services Ltd - | The Tramshed Walcot Street, Bath BA1 5BB | 0800 0789438 | ||
| On Line Systems (Northern) Ltd | ||||
| On-Communications Ltd | The Quadrant 99 Parkway Avenue, Sheffield S9 4WG | 08704 296745 | ||
| One 4 Telecom | 11 Grosmount Way Coedkernew, Newport NP10 8UQ | 01633 816080 | ||
| One Big Solution | 3 Onslow Avenue, Sutton Surrey SM2 7ED | 0845 413 2600 | ||
| One Cloud (UK) Ltd | Gateway House Newburn Riverside Newcastle upon Tyne Tyne & Wear NE15 8NX | 0845 689 9090 | ||
| One Comm Ltd | Suite 3, 2nd Floor Orbit House Albert St Eccles M30 0BL | 0870 232 2099 | ||
| One Connect Ltd | RM T208 County Hall, Preston PR1 0LD | 01524 586 508 | ||
| One Network | One Network Ltd 4th Floor Eastleigh House Upper Market Street Eastleigh, Hampshire SO50 9FD | 0808 168 7768 | http://www.onenet.co.uk/ | |
| 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 Telecom | ||||
| One World Telephony Ltd | B;lcoks D& G, The Heath Business and Technical Park Runcorn Cheshire WA7 4QF | 0845 072 0094 | ||
| One2call Ltd | Unit 16 Longacre Close Halfway Sheffield S20 3FR | 0800 9555 866 | ||
| One2One Telecoms Ltd | Unit R2 Innsworth Technology Park Innsworth Lane Gloucester GL3 1DL | 0844 2091599 | ||
| OneBill Telecom Ltd | PO Box 42177, London SW8 1UE | 0845 450 0627 | 0845 601 4832 | http://www.onebilltelecom.com/ |
| Onega Ltd | Studio H, Container City 2 Trinity Buoy Wharf Orchard Place, Docklands London E14 0JY | 0870 060 1310 | ||
| OnePhone (UK) | ||||
| Onestop ITS Ltd | 32/6 Hardengreen Industial Estate Dalhousie Road Eskbank Midlothian EH22 3NX | 0131 510 0100 | ||
| Onetalk Ltd | Globe House Colwick House Nottingham Nottinghamshire NG2 4GB | 01159 478 910 | ||
| Onetel Business Communications Solutions Ltd | 3 Tenterton Street Mayfair, London W1S 1RR | 0870 199 3164 | ||
| OneTel Telecommunications | ||||
| ONI Plc | 24 Crawley Green Road, Luton LU2 0QX | 01582 429 999 | ||
| Onsite Connect Ltd | 40-44 Arundel Street, Portsmouth PO1 1RT | 0845 077 7071 | ||
| Onwave UK Ltd | The Oasts Charmans Farm Beggars Lane Westerham, Kent TN16 1QP | 0845 413 5999 | ||
| Onyx Group Ltd | 9 Cheltenham Road Portrack Interchange Business Park, Stockton on Tees TS18 2AD | 01642 216200 | ||
| Onyx Innovation UK Ltd | Level 33, 25 Canada Square, London E14 5LQ | 020 7038 8033 | 020 7038 8100 | http://www.onyxinnovation.com/ |
| Onyx Internet | http://www.onyx-group.net/ | |||
| Oosha Ltd | Suite 2 The Chubb Buildings Fryer Street Wolverhampton WV1 1HT | 01902 702233 | ||
| Opal Telecom Ltd | Stanford House, Garrett Field, Birchwood, Warrington WA3 7BH | 0845 330 3456 | 0845 330 6789 | http://www.opal.co.uk/ |
| Open IP Ltd | CPA House 49 Bolton Road Famworth Bolton BL4 7JN | 0845 868 7263 | ||
| Open Telecom Ltd | Siddeley House 50 Canbury Park Road Kingston Upon Thames Surrey KT2 6LX | 020 3388 3030 | http://www.open-telecom.co.uk/ | |
| Open Telecom International Ltd | ||||
| OpenHosting | http://www.openhosting.co.uk/ | |||
| OpenITC | 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 | Operations Service Centre 462 London Road Isleworth Middlesex TW7 4ED | 020 8326 8200 | ||
| Optics Telecom | ||||
| Optimal Communications Services Ltd | 49 Station Road Gerrards Cross, Buckinghamshire SL9 8ES | 01753 482946 | http://www.optimalcomms.net/ | |
| Optimised IT Ltd | 5 Foxcovert Lane Lower Peover Knutsford Cheshire WA16 9QP | 01565 722280 | ||
| Optimity Ltd | ||||
| Optimum Calls Ltd | 164 Kensington High Street, Kensington London W8 7RG | 0844 3723410 | ||
| Option Telecom Plc | Elstree Business Centre Elstree Way Borehamwood Hertfordshire WD6 1RX | 0208 238 7873 | ||
| Opton Telecom Ltd | 255-261 Hornlane Acton, London W3 9EH | 05603 669 724 | ||
| Opus Network Services Ltd | ||||
| Opus Telecom Ltd | Alresford House Mill Lane Alton Hants GU34 2QJ | 01420 567 600 | http://www.opustelecom.co.uk/ | |
| Orange Home UK Ltd | St James Court, Great Park Road, Almondsbury Park, Bradley Stoke, Bristol BS32 4QJ | 0800 072 5563 | http://www.orange.co.uk/ | |
| Orange Home Phone | http://www.orange.co.uk/ | |||
| Oratel Ltd | 207 Regent street, London W1B 3HH | http://oratel.co.uk/ | ||
| Orb Communications Ltd | ||||
| Orbex Solutions Ltd | Accurist House 44 Baker Street, London W1U 7AL | 0870 0411 411 | ||
| Orbis Telecom | http://www.orbistelecom.com/ | |||
| Orbital Net | ||||
| Orbtalk Ltd | Unit 4, Hove Technology Centre, Hove BN3 7ES | 033 0045 0111 | http://www.orbtalk.co.uk/ | |
| Orca Digital Ltd | The Barley Mow Centre, 10 Barley Mow Passage, London W4 4PH | 020 8819 5710 | 020 8819 5711 | http://www.orcadigital.com/ |
| Orca Telecom Ltd | 2nd Floor 5 St John Street, Perth PH1 5SP | 0844 224 7373 | ||
| Orchard ICT Ltd | Barham House Wedhampton, Wiltshire SN10 3PZ | 01380 848 294 | ||
| Origin Telecom Ltd | 19 Hereward Rise, Halesowen B62 8AN | 0044 870 199 3164 | ||
| Ortiga Ltd | Vienna House Birmingham International Park Bickenhill Lane Solihull B37 7GN | 0845 055 6545 | ||
| OryxAlign Ltd | The Shepherds Building Rockley Road, London W14 0DA | 020 7608 7890 | ||
| Ossian Telecom | ||||
| Otra Dia Ltd | 2nd Floor 145-157 St John Street, London EC1V 4PY | 0800 0336 444 | ||
| Oundle Computer Services | http://www.ocs-uk.com/ | |||
| Outburst Ltd | ||||
| Outburst Services Ltd | PO Box 25, Winchester SO21 2BH | 0800 804 8310 | ||
| 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 | Waterfold Park, Rochdale Road, Bury Lancashire BL9 7BJ | 0844 847 9606 | http://www.outsourcery.co.uk/ | |
| Outsourcery Hosting | http://www.outsourcery.co.uk/ | |||
| Outsourcery Mobile | http://www.outsourcery.co.uk/ | |||
| Outsourcevoice Ltd | Eagle Tower Montpellier Drive Cheltenham Gloucestershire GL50 1TA | 01242 244843 | http://www.outsourcevoice.com/ | |
| Overline | http://www.overline.com/ | |||
| Overline Network Consultants | Unit 8, The Quoin Estate Marlborough Road, Lancing Business Park Lancing West Sussex BN15 8AD | 0870 891 9001 | ||
| OVH | ||||
| Ovious Solution Ltd | 9 Cork Street, London W1S 3LL | 0800 063 3100 | ||
| Oxygen8 Communications UK | 19 Cato Street, Birmingham B7 4TS | 0808 131 3131 | ||
| P S Hanford Ltd | Eagle Tower Montpellier Drive Cheltenham Gloucestershire GL50 1TA | 01242 516759 | ||
| p2p Communications Ltd | Ashlea House, 323 North Road, Manchester M11 4NY | 0870 730 3737 | 0870 730 3722 | http://www.talkcheaper.net/ |
| Pace Telecom Ltd | 33 High Street, Wrexham LL13 8HY | http://www.pacetelecom.co.uk/ | ||
| 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 | 0161 660 9825 | http://www.pack-net.co.uk/ |
| PageOne Comms | http://www.pageone.co.uk/ | |||
| Pan Telecom | Communicate House Allenby Business Village Crofton Road Lincoln LN3 4NL | 0870 757 7001 | ||
| Panztel (UK) Ltd | Raglan House Llantarnam Business Park, Cwmbran NP44 3AB | 0845 453 4150 | ||
| Paradigm Network Solutions Ltd | Hatch House Farm Headley Road Lindford Hampshire GU35 0NZ | 01420 476653 | ||
| Paramount Telematics Ltd | The Old Post Office 28 - 29 Haigh Road Aspull Wigan WN2 1YA | 0870 766 8867 | ||
| Park Bench Marketing Ltd | 46a New Road Shoreham by Sea, West Sussex BN43 6RA | 08454 210 270 | ||
| Parrish Communications Ltd | 37-39 Eastcheap, LONDON | 020 7648 0770 | ||
| Part Two Ltd | M.I.O.C Styal Road Manchester, M22 5WB | 0845 673 0025 | ||
| 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 | ||
| Patoy Ltd | 96 Vallander Road, London SE6 2QE | |||
| Patterson Electronics | http://www.patterson-electronics.com/ | |||
| Paul OBrien Ltd | 78 Hospital Street Hantwich, Cheshire CW5 5RP | 03333 444243 | ||
| PC Directs Ltd | Suite 2272 6 Slington House Rankine Road Basingstoke RG24 8PH | 0843 289 7339 | ||
| Black & Yellow Ltd | PO Box 6568, Newark NG23 7ER | 01522 704777 | ||
| PD Media | ||||
| Peace Communication Ltd | 8 Branksome Business Park Bourne Valley Road Poole Dorset BH12 1DW | 01202 768970 | ||
| Peace Telecom | Suite 2 1st Floor, Oak Court, Wynne Avenue, Clifton Swinton, Manchester M27 8FF | |||
| Peach Communications | Unit 18, Penmaen Small Business Centre Penmaen Road Pontllanfraith Blackwood, Gwent NP12 2DZ | 01495 237868 | ||
| Peach Telecom Ltd | 17 Hedge End Business Park, Botley Road, Hedge End, Southampton SO30 2AU | 0800 998 2002 | 0800 998 2003 | http://www.peach-telecom.co.uk/ |
| Peakweb Ltd | 15 Dale Close Fritchley Belper Derbyshire DE56 2HZ | 01773 856872 | ||
| Pearl Communications Ltd | 36-38 Berry Street, Wolverhampton WV1 1HA | 01902 426291 | ||
| Pearl Telecom Ltd | Barnett House 53 Fountain Street, Manchester M2 2AN | 0845 456 6543 | http://www.pearltelecom.co.uk/ | |
| Pegasus Communications (uk) Ltd | 206 White Lane, Sheffield S12 3GL | 0870 4441408 | ||
| Pennine Telecom Ltd | Pennine House Salford Street Bury Lancashire BL9 6YA | 0161 763 3333 | http://www.penninetelecom.com/ | |
| Pentagon Systems | Darley Court 1 Alfreton Road, Derby DE21 4AA | 08451 662358 | ||
| Pentel Communications Ltd | Camellia House Water Lane Wilmslow Cheshire SK9 5BB | 0845 230 0011 | ||
| Perdial Ltd | Perdial Limited Mint House 6 Stanley Park Road Wallington, Surrey SM6 0HA | 0845 3703 111 | ||
| Performance Telecom Ltd | Unit 63 17 Holywell Hill, St Albans AL1 1DT | 0845 456 1500 | ||
| Pericom PLC | 16 Alston Drive Bradwell Abeey, Milton Keynes MK13 9HA | 01908 224680 | ||
| Peterborough Telecoms Ltd | 12 Mary Walsham Close Stanground, Peterborough PE2 8RT | 01733 890074 | ||
| Petrol Communications Ltd | 18 Haythrop Close Downhead Park, Milton Keynes MK11 9DD | 020 3130 1790 | ||
| PGL Com Ltd | Unit A, ARC Progress Beckering Park Lidlington Beds MK43 0RD | 08445 449 330 | ||
| PGL IT Ltd | Unit A, ARC Progress Beckerings Park Lidlington Beds MK43 0RD | 08445 449330 | ||
| Pheonix Corporate Communications Ltd | ||||
| Phitel Communications | 42 Glebe Road Hertford, Herts SG14 3JY | 01992 550498 | http://www.phitel.co.uk/ | |
| Phoenix Backup Ltd | Heritage House 79-80 High Street Gravesend Kent DA11 0BH | 0845 467 1236 | ||
| Phoenix Call Ltd | 96 The London Fruit & Wool Exchange Brushfield Street, London E1 6EP | 0845 052 3344 | ||
| Phoenix Link | Albion Chambers 1 Albion Road Birchington Kent CT7 9DN | 01843 844 180 | http://www.phoenixlink.co.uk/ | |
| Phoenix Link UK Ltd | 125 Canterbury Road, Westgate CT8 8NL | 0844 257 1710 | ||
| Phone Buddy | ||||
| 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 | 0845 458 9001 | 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 Package | http://www.thephone.coop/ | |||
| Phone Direct | ||||
| PhoneBird | http://www.phonebird.co.uk/ | |||
| Phonebox Communications Ltd | 4 Station Court Old Station Road Hampton in Arden Solihull B92 0HA | 0844 412 3237 | ||
| Phonecard Services Ltd | PO Box 8213, Chiswick, London W4 3WR | 020 8987 9553 | 020 8747 0382 | http://www.phonecard-services.co.uk/ |
| Phonenumbers4u Ltd | Suite 328, 162-168 Regent Street, London W1B 5DT | 020 3100 0567 | 0871 918 0608 | http://www.phonenumbers4u.co.uk/ |
| 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/ | |||
| Phones4Business | Fairgate House, 205 Kings Road, Tyseley, Birmingham B11 2AA | 0800 124 4044 | 0870 140 4041 | http://www.phones4yourbusiness.com/ |
| Phones4Education Ltd | Fairgate House, 205 Kings Road, Tyseley, Birmingham B11 2AA | 0800 124 4044 | 0870 140 4041 | http://www.phones4education.co.uk/ |
| Phonestar Ltd | 10 Bridge Road, Christchurch, Dorset BH23 1EF | 0845 366 6444 | http://www.phonestar.co.uk/ | |
| PiaTel Communications Ltd | 302 Regent Street, London W1B 3HH | 020 7979 1700 | ||
| Pineapple Communications Ltd | Top Floor, Edwards Corner, Regents Street, Hinckley, Leics LE10 0BB | 0870 345 0004 | http://www.pinecom.net/ | |
| Pineapple Telecom Ltd | 1 Greenfields, Blackburn BB2 4UM | 01254 689002 | ||
| Pink Connect Ltd | 2 West Street Chipping Norton, Oxfordshire OX7 5AA | 0845 450 9393 | http://www.pinkconnect.com/ | |
| Pinnacle | http://www.pinnacle-telecom.net/ | |||
| Pinnacle Telecom (Wales) | http://www.pinnacle-group.co.uk/ | |||
| Pinnacle Telecommunications Plc | ||||
| Pinnacle Telecoms Wales | ||||
| Pioneer Global Services Ltd | 2 Gayton Road, Harrow Middlesex HA1 2XU | 020 8819 1946 | ||
| Pipe Media | http://www.pipemedia.com/ | |||
| Pipex Uk | http://www.pipexuk.com/ | |||
| Plain Sailing Communications Ltd | PO Box 335 Sevenoaks, KENT TN13 3ZX | 01732 743 746 | ||
| 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 | 3rd Floor, Bristol & West House, Post Office Road, Bournemouth BH1 1BL | 0845 077 7777 | 0845 017 5011 | http://www.planet-numbers.co.uk/ |
| Planet Talk | 6 Snow Hill, London EC1A 2AY | 0800 036 3839 | http://www.planet-talk.co.uk/ | |
| Planet Telecommunications Solutions Ltd | ||||
| Platinum Telecom | 145-157 St John Street, LONDON EC1V 4PY | 0870 167 2114 | ||
| Plaza Telecom | ||||
| PL-Q | http://www.pc-q.co.uk/ | |||
| Plum Communications Ltd | Bright Street, Oldham OL8 4AB | 0870 750 4730 | http://www.plumcom.co.uk/ | |
| Plus Save Ltd | Flat D, 291 Waldergrave Road, Twickenham Middlesex TW1 4SU | 020 7993 2720 | ||
| Plus Telecom | ||||
| PlusNet Plc | Technology Building, Terry Street, Sheffield, S9 2BU | 0845 140 0200 | 0870 703 8553 | http://www.plus.net/ |
| PlusNet Broadband Phone | http://www.plus.net/ | |||
| PlusNet Home Phone | http://www.plus.net/ | |||
| Pneuma Global Networks | Brookmans Park Teleport Gt North Road Brookmans Park Herts AL9 6NE | 01707 648316 | ||
| Poidon Ltd | Raymac House 152-158 Park View Road Welling Kent DA16 1SR | 020 8303 8668 | ||
| Pointel Communications Ltd | 42 Bloomsbury Street London, WC1B 3QJ | 020 7299 4299 | ||
| Polaris Telecommunications Ltd | St John's Innovation Centre Cowley Road, Cambridge CB4 0WS | 08707 651654 | ||
| Pond Group Ltd | 17 Widmore Road, Bromley BR1 1RL | 020 8466 6043 | ||
| Pop Telecom Ltd | 9 Ashton Gate Ashton Road Romford Essex RM3 8UF | 0800 0884321 | ||
| Poplar Ltd | ||||
| Poppy's Communications Ltd | The Old Parlour Purn House Farm Bleadon Weston Super Mare BS24 0QE | 01934 814 984 | ||
| Portal Voice & Data Ltd | Unit 2a, Saphire Estate Roundtree Way Norwich Norfolk NR7 8SQ | 01603 785300 | ||
| Portal Voice and Data | http://www.portal-comms.co.uk/ | |||
| Portsmouth Business System Ltd | 14 The Tanneries Brockhampton Lane Havant Hants PO9 1JB | 02392 454 694 | ||
| Positive Communication | ||||
| Positive ICT Ltd | PO Box 3866, Wolverhampton West Midlands WV6 8ZT | 0870 873 4610 | ||
| Post Office Ltd | Providence Row, Durham DH1 1RR | 0845 600 3210 | http://www.postoffice.co.uk/ | |
| Post Office Broadband | 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 | ||
| Power Internet | 249 Midsummer Boulevard Central Milton Keynes, Buckinghamshire MK9 1EA | 01908 605 188 | ||
| Power Web Tech | ||||
| Powercit.co.uk Ltd | 82a Singer Way Woburn Rd Ind Est, Kempston MK42 7PU | 01234 905102 | ||
| Powerdial Services Ltd | East Batterlaw Farm, Hawthorn County Durham SR7 8RP | 01915275000 | ||
| Powertel Communications Ltd | ||||
| Prana Pura Ltd | 38 Woodlands Avenue, New Malden KT3 3UQ | 020 8949 6994 | ||
| 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 Telecom Ltd | 331 St Margaret's Road, Twickenham TW1 1PW | 020 8744 2140 | ||
| Preferred One Stop Technologies Ltd | Priority House Grove Park Court, Harrogate HG1 4DP | 01423 534 560 | ||
| Premier Choice Telecom Ltd | http://www.premierchoicetelecom.com/ | |||
| Premier Mobile Ltd | Europa House 54 Great Marlborough Street, London W1F 7JU | 020 7287 9928 | ||
| Premier Mobile Phones Ltd | ||||
| Premier Talk Ltd | EBC House Townsend Lane Kingsbury London NW9 8LL | 020 7392 8864 | ||
| Premier Telecommunications Ltd | The Old Chapel Main Street Branston Burton-on-Trent DE14 3EY | 01293 568301 | ||
| Premier Telesales Ltd | Premier Telesales Limited Technology House Hadley Telford, Shropshire TF1 6QJ | 0844 344 8494 | ||
| Premier Voice & Data Ltd | ||||
| Premier Voicemail | ||||
| Premiere Communications Inc | 3399 Peachtree Road NE, The Lenox Building, Suite 400, Atlanta, Georgia 30326, USA | |||
| Premium Galaxy Ltd | 17 Old Church Road, Coventry CV6 7BZ | 0845 589 5895 | http://www.premiumgalaxy.co.uk/ | |
| Premium O | Park House, 38 Station Road, High Wycombe, Bucks HP10 9UN | 0800 849 8877 | http://www.premiumo.co.uk/ | |
| PremTel | ||||
| Prime Hosting | http://www.primehosting.co.uk/ | |||
| Primus Business | 6 Snow Hill, London EC1A 2AY | 0800 036 3698 | http://www.primusbusinesstalk.co.uk/ | |
| Primus Saver | 6 Snow Hill, London EC1A 2AY | 0800 036 0094 | http://www.primussaver.co.uk/ | |
| Primus Saver | 6 Snow Hill, London EC1A 2AY | 0800 036 0094 | http://www.primussaver.co.uk/ | |
| Primus Telecommunications Ltd | NIOC House, 4 Victoria Street, London SW1H 0GT | 020 7669 6000 | 020 7669 6100 | http://www.primustel.co.uk/ |
| Primus Virtual Phone | http://www.primusvirtualphone.co.uk/ | |||
| Principal IT Ltd | The Red House 119 Fore Street Hertford Herts SG14 1AX | 08704 103 232 | ||
| Proactive ITS Ltd | Proactive ITS Ltd Anchor House Anchor Road Aldridge WS9 8PW | 01922 830000 | ||
| 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 | ||
| Procom Europe Ltd | ||||
| Prodigy Internet Ltd | PO Box 1636, Sheffield S10 5XG | |||
| Pro-eco | Newspaper House Tannery Lane, Warrington WA5 2UD | 01925 416784 | ||
| Professional Software Design Ltd | 2-3 Fairmile Parade Fairmile Road Christchurch Dorset BH23 2LP | 0845 8621061 | ||
| Progressive Communications Ltd | 25 Groves Business Centre Shipton Road Milton-under-Wychwood OXON OX7 6JP | 01993 831 222 | ||
| Progressive Consulting Ltd (PCL) | 46 Hyde Road, South Croydon Surrey CR2 9NP | 020 8657 4666 | ||
| Promotions4All | ||||
| ProNet Computers | Unit B1B - Mill One Pleasley Vale Business Park Mansfield Nottinghamshire NG19 8RL | 01623 811920 | ||
| Pro-Net Internet Services Ltd | PO Box 5763, London NW7 0EQ | 0870 835 6911 | ||
| Property Hunt Ltd | 6 Ellsmere Court Manners Industrial Estate Ilkeston Derbyshire DE7 8EF | 0845 223 2200 | ||
| Protel Networks PLC | 4-6 Arden Grove, Harpenden, Herts AL5 2SJ | 07050 102030 | ||
| Proton Telecom | ||||
| Pro-Voice Ltd | Unit 6, Solent Industrial Estate Southampton Hampshire SO30 2FX | 0870 803 0836 | ||
| Pro-Voice Network Ltd | Unit 8, Solent Industrial Estate Hedge End Southampton Hampshire SO30 2FX | 0870 8030836 | ||
| Proweb (UK) Ltd | 18 Mansfield Road Daybrook, Nottingham NG5 6AA | 0115 920 2010 | ||
| Prs Telecom Ltd | 2nd & 3rd Floor PRS Telecom House 82-84 High Street Mold, Flintshire CH7 1BH | 0161 653 4141 | ||
| PSIFX Networks Ltd | 3 Somerset Mews Loch Street Runcorn Cheshire WA7 1LP | 01928 574026 | ||
| PST Business Solutions Ltd | The Courtyard, James Lane Grazeley Green Reading Berkshire RG7 1NB | 0118 959 0800 | ||
| PSU Talk Ltd | 3 Manchester Park Tewkesbury Road, Cheltenham, Gloucester GL51 9EJ | 0870 112 1128 | ||
| Psychic Friends Ltd | 32 The Square, Gillingham Dorset SP8 4AR | 020 3397 2852 | ||
| Public Internet Ltd | Unit 6, Boundary Park Wheatley Road Garsington Oxfordshire OX44 9EJ | 01856 594 000 | ||
| PUL Communications | ||||
| Pulse Business Solutions Ltd | ||||
| Pulse Communications (UK) Ltd | Unit 1 Grove House Booth Street Haslingden Rossendale, Lancs BB4 5JA | 08448 221229 | ||
| Pulse DSL Ltd | Pulse House 29 Elmfield Gardnes, Tyne and Wear NE3 4XB | 0800 9555 107 | ||
| Pulse Media (UK) Ltd | Media House The Lansbury Estate Knaphill Woking, Surrey GU21 2EP | 0870 750 4002 | ||
| Puma Telecom | ||||
| Puma Unified Communications | ||||
| Pure Cloud Solutions Ltd | Unit 3 Blake Court Zone 1 Burntwood Business Park Burntwood Staffordshire WS7 3GR | 08456 771 000 | ||
| Pure Comms Bristol Ltd | 41 Southfield Road Nailsea, North Somerset BS48 1JB | 0800 6344733 | ||
| Pure Communications UK Ltd | ||||
| Pure Mobile Ltd | Pure Mobile T/a Pure Connected Solutions House Blisworth Hill Farm Blisworth, Northampton NN7 3DB | 0870 240 3471 | ||
| Pure Talk Ltd | The Bridges Centre Birches Head Road, Stoke-on-Trent ST2 8DD | 0870 3307431 | ||
| Mobilshop.com Ltd | Aspen Court Comelscourt, Dublin 19 Ireland | +353 1 2895555 | ||
| Pure Telecom Solutions Ltd | Unit 3b Country Design Centre Cotebrook Tarporley Cheshire CW6 9DY | 0844 887 0144 | ||
| Pure Wire Ltd | Solutions House Blisworth Hill Farm, Northampton NN7 3DB | 0870 192 2000 | ||
| Pureglow Ltd | ||||
| Pure-IP Ltd | The Granary 113 Lavender Walk, London SW11 1JS | 020 7801 3280 | ||
| purple comms ltd | ||||
| Q Communications | 109 Park Avenue Mitcham, Surrey CR4 2ES | 0800 090 1212 | ||
| Q\DOS Networks Ltd | Manor Farm Business Centre Manor Lane Stutton Ipswich IP9 2TB | |||
| QDial | http://www.qdial.co.uk/ | |||
| QDOS Communications Ltd | 2 Mere Gardens Rushmere St Andrew, Ipswich IP4 5HU | 0843 208 3001 | ||
| Qeito Network Solutions | ||||
| QiComm | QiComm Ltd 2nd Floor, Challenger House 42 Adler Street London E1 1EE | |||
| Qnet Group Ltd | Qnet House Malleable Way Stockton On Tees Cleveland TS18 2QX | 08708 503 027 | ||
| Quadium Ltd | The Sussex Innovation Centre University of Sussex Science Park Square East Sussex BN1 9SB | 0845 330 3331 | ||
| Quadrant PowerComm (NI) Ltd | Quadrant PowerComm (NI) Ltd Unit 14 Lisburn Enterprise Centre Ballinderry Road Lisburn BT28 2BP | 028 9262 8262 | ||
| Qualicom Solutions | 82 Greenbank Road Watford Hertfordshire, WD17 4FL | 01923 229166 | ||
| Qualitel Business Telecoms Specialists | Brampton House 10 Queen Street Newcastle Staffs ST5 1ED | 01782 622288 | ||
| Qualitel International Ltd | Carrick Business Centre Commercial, Road, Penryn, Cornwall TR10 8AR | 01326 378 999 | ||
| QuantumShift Enterprises | http://www.quantumshift.co.uk/ | |||
| Qubic Group Plc | Athene House 86 The Broadway Mill Hill LONDON NW7 3TD | 02086 017 019 | ||
| Qudo Hosted VoIP | http://www.drd.co.uk/ | |||
| Quest Comms Services Ltd | 21 Ilex Court Emscote Road, Warwick CV34 4PJ | 01926 776 909 | ||
| Quest Communications Ltd | 2 Tanners Courtyard West Street, Warwick CV34 6AZ | 01926 490807 | ||
| QuestZones (Europe) Ltd | The Digital Depot Roe Lane The Digital Hub, Dublin 8 | +353 1 488 5863 | ||
| Quick Call Record | http://www.quickcallrecord.com/ | |||
| Quickline Communications Ltd | Kingston House Saxon Way, Hessle HU13 9PB | 01482 247365 | ||
| Quickspace | http://www.quickspace.net/ | |||
| QuintPlay Ltd | One Friar Street Reading, Berkshire RG1 1DA | 01189 758 547 | ||
| Quore Ltd | 80 Lind Road, Sutton Surrey SM1 4PL | 0845 6448490 | ||
| QX Call | http://www.qxtelecom.co.uk/ | |||
| QX Telecom Ltd | 2 Glenmore Close, Thatcham RG19 3XR | 0844 574 3333 | 0844 574 3000 | http://www.qxtelecom.co.uk/ |
| QXTEL | Oak House, 49a Uxbridge Road, London W5 5SB | |||
| R G C Telecommunications Ltd | Haughmond Farm Felton Butler Shrewsbury Shropshire SY4 1AS | 07143 741188 | ||
| R2 Computer Solutions | 143 Ladybridge Road Cheadle Hulme, Cheshire SK8 5PL | 0161 408 2589 | ||
| Rabco Telecommunications | ||||
| Rainbow Global Network Ltd | Hawley Manor Hawley Road Dartford Kent DA1 1PX | 0870 873 7575 | ||
| Rainbow Telecom | Dundonald Business Park, Dundonald, Belfast BT16 1QT | 0871 230 4200 | http://www.rainbowtele.com/ | |
| Rainton. Net Ltd | The Evolve Centre Cygnet Way Rainton Bridge South Durham DH4 5QY | 0191 305 5005 | ||
| Rallye Communications Ltd | Unit 10 Aragon Road Blackbushe Business Park Yateley Hants GU46 6GA | 01252 863 720 | ||
| Rammacom Ltd | Heathercote, The Winnaway Harwell Didcot Oxon OX11 OJG | 01235 884910 | ||
| RAOB GLE Solutions Ltd | Grove House Skipton Road Harrogate North Yorkshire HG1 4LA | 01423 502 438 | ||
| Rapid Communications Ltd | 43 Temple Row, Birmingham B2 5LS | 08702 430 980 | ||
| RapidSurf | 174 Blake Street Mansfield, Woodhouse NG19 9NN | 08712 183309 | ||
| Rapier Integrated Solutions Ltd | Craven House The Lansbury Estate, Lower Guildford Road Knaphill Surrey GU21 2EP | 0870 89 870 89 | ||
| Ratebuster | 6 Snow Hill, London EC1A 2AY | 0844 552 8576 | http://www.ratebuster.co.uk/ | |
| Raw Telecom Ltd | Hangar 3 Fourth Avenue, Doncaster DN9 3GE | 0845 121 0206 | ||
| RawApple | http://www.rawapple.co.uk/ | |||
| RCG Global Networks Ltd | ||||
| RDL Associates | 12 Chapel Street, Dunfermline, KY12 7AW | 0845 644 2001 | ||
| RDT (Southern) Ltd | Unit 2 Zenith House Gresford Industrial Park, Wrexham LL12 8LX | 01978 858 585 | ||
| RE Marketing Services Ltd | ||||
| Reach Europe | ||||
| React | 20 The Metro Toutley Road, Wokingham RG41 1QW | 0800 0191316 | ||
| Ready Technology | 77 Oxford Street, London W1D 2ES | 0207 135 7000 | ||
| Real Poptel | ||||
| Real Telekom | ||||
| Reality Telecom | Vickers House Priestley Road, Basingstoke RG24 9NP | 08707 606 606 | http://www.realitytelecom.co.uk/ | |
| Realta UK Ltd | Priestgate House 3-7 Priestgate, Peterborough PE1 1JN | 0870 220 7220 | ||
| Rebtel Services Sarl | 9A Bd Prince Henri, L-1724 Luxembourg, Luxembourg | http://www.rebtel.com/ | ||
| Record my call | http://www.recordmycall.co.uk/ | |||
| RecordMyCall | ||||
| Red Communications | Highstone House 165 High Street, BARNET EN5 5SU | 020 8440 0007 | ||
| Red Matter | 42a Station Road East, Oxted, Surrey RH8 0PG | 020 7138 2969 | 0870 626 5208 | http://redmatter.com/ |
| Red Squared | ||||
| Redbox Telecom Ltd | PO Box 238, Northwood, Middx HA6 2ZL | 0844 450 5554 | http://www.redboxtele.com/ | |
| Redcoms Ltd | Telecom House Western Avenue Bridgend Ind. Estate Bridgend CF31 3RT | 01656 674000 | ||
| Redheath Services Ltd | Unit D Kapital Building Charter Street Leicester LE1 3UD | 0871 315 7303 | ||
| Redline Tele.com Ltd | 13 Commercial Road, Hereford HR1 2BB | 01432 359933 | ||
| Redsquid Communications Ltd | Devonshire House Manor Way Borehamwood Herts WD6 1QQ | 0845 307 4091 | ||
| Redstar Telecom Ltd | http://www.redstartelecom.co.uk/ | |||
| Redstar Telecommunications Ltd | Kestrel Court Business Park Harbour Road Portishead Bristol BS20 7AN | 01275 295 100 | ||
| Redstone PLC | Centennial Park, 160 Centennial Avenue, Elstree, Herts WD6 3SG | 0845 201 0000 | http://www.redstone.com/ | |
| Redstone Managed Solutions Ltd | Griffin House 18-19 Ludgate Hill, Birmingham B3 1DW | 0845 201 0000 | ||
| Redwood Telecommunications Ltd | Trade Tower Plantation Wharf, London SW11 3UF | 020 7738 1000 | http://www.redwoodtele.com/ | |
| Redyx Systems Ltd | Redyx Systems Limited 5 Vickers House, Basingstoke RG24 9NP | 01256 807 955 | ||
| Reefstream Ltd | Durham Tees Valley Business Centre Orde Wingate Way, Stockton on Tees TS19 0GA | 01642 636275 | ||
| Reeves Lund & Co Ltd | The Courtyard 55 Charterhouse Street, London EC1M 6HA | 020 7739 8888 | ||
| Regency Grove Communications Ltd | 87a Victoria Road Horley, Surrey RH6 7QH | 0844 770 7977 | ||
| Regent Communications Ltd | 21 llex Court Emscote Road, Warwick CV34 4PJ | 01926 776909 | ||
| Regentcomms Ltd | 1 Stanmor House Cape Industrial Estate Cattell Road Warwick CV34 4JQ | 0333 321 4500 | ||
| Relax Telecom | 18 Buxton Road Hazel Grove Stockport Cheshire SK7 6AD | 0844 877 7900 | ||
| Relevance Ltd | 56 Station Road, Waddington London LN5 9QW | 08700 501101 | ||
| Reliance Communications (UK) | http://www.relianceindiacall.co.uk/ | |||
| Reliance IP Networks Ltd | Big Storage Fence Avenue, Macclesfield SK10 1LW | 0845 070 4607 | ||
| Rely Telecom | ||||
| Re-mark Telecommunications Ltd | Unit 29 Aston Business Park Shrewsbury Avenue Woodston Peterborough PE2 7BX | 01733 405 965 | ||
| REMEDi Communicating Solutions Ltd | Didlington Wimbourne, Dorset BH21 7HH | 0330 0883 766 | ||
| Remote Systems Management | 73 Brackendale Drive, Walsall WS5 4DA | 0845 330 9478 | ||
| Resel Communications Ltd | Tesla Court 8 Innovation Way Peterboroguh Business Park Cambridgeshire PE2 6FL | 0845 676 2020 | ||
| Resilient Networks | ||||
| Resource Network Solutions Ltd | Unit 1 Nasmyth Building Nasmyth Avenue Scottish Enterprise Technology Park East Kilbride G75 0QR | 01355 575111 | ||
| Resource Telecom Ltd | Unit 1, Nasmyth Building Nasmyth Avenue Scottish Telecom Technology Park East Kilbride G75 0QR | 01355 575111 | ||
| Resource Utilities Ltd | Torlundy House, Wood Road, Hinhead, Surrey, GU26 6PT | 0845 233 2222 | http://www.resource-utilities.com/ | |
| Retail Technology Services | Brooke House 4 The Lakes, Northampton NN4 7YD | 0844 840 7666 | ||
| Review Online | http://www.review.uk.com/ | |||
| Revolution Communications Ltd | 3 Searles Close, London SW11 4RG | 0844 581 7000 | ||
| Revolution Telecoms Ltd | 8 Arundel Close Hemel Hempstead, Herts HP2 4QR | 01442 214 028 | ||
| Rexcom Tech | http://www.rexcomtech.com/ | |||
| RFN Marketing Ltd | ||||
| RGS Communication UK Ltd | 8U Meadow Works Great North Road Barnet London EN5 1AU | 020 76244322 | ||
| RGT Ltd | Northdown House Chapel Road, Smallfield RH6 9NW | 0870 777 2444 | ||
| Rhema Telecom | ||||
| RHM Telecommunications Ltd | Goodridge House Goodridge Avenue, Gloucester GL2 5EA | 01452 511 325 | ||
| Rhodium Telecom | ||||
| Ridgewall Communication Ltd | 16 Anning Street, London EC2A 3HB | 020 7749 4321 | ||
| Ridgeway Phones Ltd | The Orangery East Lockinge Wantage Oxon OX12 8QJ | 01235 820 800 | ||
| Ring Telecom Ltd | 6th Floor Britannia House 960 High Road London N12 9RY | 0330 700 0029 | ||
| Ring2 Communications Ltd | 12 Tokenhouse Yard, London EC2R 7AS | 0845 0800 877 | http://www.ring2.com/ | |
| Ringmaster Ltd | Fenwicks Close Farm, Earsden, Whitley Bay, Tyneside, NE25 9TQ | |||
| Ringtrue Solutions | ||||
| Ripple Communications Ltd | ||||
| Ripwire Ltd | Fusion@Magna Magna Way, Rotherham S60 1FE | 0114 303 0096 | ||
| Risc Group IT Solutions Ltd | Church Walks Business Centre Church Walks Llandudno Conwy LL30 2HL | 01492 862780 | ||
| River Telecom Ltd | Beaufront Park Anick Road Hexham Northumberland NE46 4TU | 01434 602 487 | ||
| Riverdale Voice & Data | 266 Toddington Road, Luton LU4 9DZ | 0844 3579548 | ||
| Riviera Networks | PO Box 2168 Rayleigh, Essex SS6 0AU | 0845 2702 742 | ||
| RJ Cortel Ltd | Units 22-23 Silveroaks Farm Waldron Heathfield East Sussex TN21 0RS | 08453 664666 | ||
| RJR Communications | The Office 64 Old Vicarage Westhoughton Bolton BL5 2EL | 01942 814 981 | ||
| RLK Capital Ltd | 577 Dumbarton Road, Glasgow G11 6HU | 01413 425 339 | ||
| RM Education Plc | 183 Milton Park Abingdon, Oxon OX14 4SE | 08450 700 300 | ||
| Roadphone Ltd | Pinfold Road Bourne, Lincolnshire PE10 8HT | 01778 421 250 | ||
| Rock Networks Ltd | Unit 2b Stone Cross Court Yew Tree Way Stonecross Court Wigan WA3 3JD | 0845 076 6266 | ||
| Rockbay Ltd | Solar House 282 Chase Road, London N14 6NZ | 07950 550124 | ||
| Rocom Network Services Ltd | Thorp Arch, Wetherby, West Yokshire LS23 7BJ | |||
| Rojo Trading | ||||
| HQ Telecom Ltd | Unit 51 Waterside Trading Centre Trumpers Way London W7 2QA | 0844 901 0044 | ||
| Rose Communications (UK) Ltd | 72b Oldhill Street, London N16 6NA | 020 8815 4120 | ||
| Rosie Red Ltd | 20 JDEC House London Road Hemel Hempstead Hertfordshire HP3 9QU | 01442 509 022 | ||
| Roswell IT Services Ltd | James Watt Centre Scottish Enterprise Tech. park, East Kilbride G75 0QD | 01355 265 588 | ||
| Rotel Telecommunications Ltd | 12 Dagger Lane West Bromwich, West Midlands B71 4BA | 0121 525 5757 | ||
| ROUTO | ||||
| RPM Grp Ltd | Cavell House Stannard Place St Crispins Road Norwich NR3 1YE | 01603 821127 | ||
| RRD Communications Ltd | 120a Reddish Lane Gorton, Manchester M18 7JL | 08707 517 181 | ||
| RSM 200 Ltd | Wrest Park Silsoe, Beds MK45 4HS | 01525 862 555 | ||
| RSO Telecom Ltd | C/O Catch Telecom Limited & NGO Consulting Ltd Westward House Glebeland Road Camberley, Surrey GU15 3DB | 01276 590 000 | ||
| RSR Communications Ltd | 175 Claremont Road Salford, Manchester M6 8PA | 0161 790 4392 | ||
| RT Systems | http://www.rt-systems.co.uk/ | |||
| Rubato | http://www.rubato.net/ | |||
| Russell Telecom Ltd | Communications House, Unit 11 Keel Row, The Watermark, Metro Riverside, Gateshead NE11 9SZ | 0191 461 4200 | 0191 461 4201 | http://www.russell-telecom.co.uk/ |
| Rutland Communications Ltd | PO Box 7960 Market Harborough, Leicestershire LE16 0AA | 0870 161 3388 | ||
| Rutland ICT | http://www.rict.co.uk/ | |||
| Rutland Telecom | http://www.rutlandtelecom.co.uk/ | |||
| RW Communications Ltd | RW Communications Ltd Lakeside House 1 Furzeground Way Stockley Park, Uxbridge UB11 1BD | 0845 688 6888 | ||
| Ryan and Marc Ltd | 8 Morston Court Kingswood Lakeside Cannock Staffordshire WS11 8JB | 0121 309 0000 | ||
| Rydal Communications Ltd | Unit 114 Culley Court Orton Southgate, Peterborough PE2 6WA | 0845 224 7017 | http://www.rydalcommunications.com/ | |
| RZR | 254 Belsize Road, London NW6 4BT | 0870 7668481 | ||
| S&S Communications | S&S Communications Unit 6 Greenbank Ind Est Newry Co Down BT34 2QX | 029 3026 0864 | ||
| S.L.G. Comms Ltd | 118 Kensington Road, Portsmouth Hampshire PO2 0RB | 08707 701 701 | ||
| Sabio Network Services Ltd | Enterprise House 1-2 Hatfields, London SE1 9PG | 020 7633 3900 | ||
| Sabre Solutions | 20 Star Road Ashford Kent, TN24 8BX | 01233 335 873 | ||
| Sabre Telecommunications Ltd | 1 Woodingdean Business Park Sea View Way Brighton East Sussex BN2 6NX | 0800 849 2080 | ||
| SAC Marketing Ltd | Lincoln House, Derby DE23 8LT | 0870 116 0555 | ||
| Safe Online Billing Ltd | 3 Coral Crescent, Warsop, Mansfield, Notts NG20 0FP | 0845 074 3777 | http://www.safeonlinebilling.com/ | |
| Safecall | http://safe-call.com/ | |||
| Safeserve.com Ltd | 86 Beaufort Street, Chelsea London SW3 6BU | 020 7349 1570 | ||
| Safety In Numbers.co.uk | ||||
| Saga Services Ltd | The Saga Building, Middelburg Square, Folkestone, Kent CT20 1AZ | 0800 559 3230 | http://www.saga.co.uk/finance/telephone/ | |
| Saga Services Ltd | The Saga Building Middleburg Square Folkestone Kent CT20 1AZ | 01303 772 132 | ||
| Sage Telecom Ltd | Unit 36 Sandy Road Norton Stourbridge West Midlands DY8 3AH | 0845 3711555 | ||
| Saicom Ltd | 140 Kings Cross Rd, London WC1X 9DS | 020 7278 9009 | ||
| Network Services.com Ltd | 8 Foundry Court, Daventry Northants NN11 4RH | 0845 4503401 | ||
| Saiph Communications Ltd | Gainsborough House 2 Sheen Road, Richmond TW9 1AE | 020 8150 1237 | ||
| Sala Ltd | Grove Dell
Pump Lane, North Marlow, Bucks SL7 3RD |
|||
| Samite Ltd | 21 Princes Road Ealing, London W13 9AS | 0208 959 9070 | http://www.samite.co.uk/ | |
| Sansaw Properties Ltd | The Estate Office Sansaw Business Park Hadnall Shrewsbury SY4 4AS | 01939 211100 | ||
| Sapphire Telecom LTD | Sapphire Telecom Ltd 18 Russell Place Fareham Hampshire PO16 7FH | 01329 284 481 | ||
| Satphone | http://www.satphone.co.uk/ | |||
| Savage Minds Ltd | 117 Waterloo Road, London SE1 8UL | 020 3137 1135 | ||
| Save Money on Calls.net (UK) Ltd | Unit 2, Martin Office Village 1250 Chester Road Birmingham B35 7AZ | 0870 752 0060 | ||
| Save Talk Ltd | 2nd Floor 145-147 St John Street, London EC1V 4PY | 0141 255 0518 | ||
| Save Telecom | 12 Hood Green Road Barnsley, South Yorkshire S75 3HF | 01226 790054 | ||
| Saver Telecoms Ltd | Suites 203/204 Victoria House Desborough Street High Wycombe Bucks HP11 2NF | 0844 856 1790 | ||
| Saveware Professional Contractors | 15 Oak Tree Lane Selly Oak, Birmingham B29 6JE | 0121 2480528 | ||
| SBC Communications Ltd | Office 404 4th Floor Albany House 324/326 Regent Street London W1B 3HH | 020 7692 4098 | ||
| SBS (GB) Ltd | Gateway House Newburn Riverside Newcastle Upon Tyne Tyne and Wear NE15 8NX | 0845 689 9210 | ||
| Scalable Networks Plc | Endeavour House, Mercury Park Wycombe Lane Wooburn Green Buckinghamshire HP10 0HH | 01628 852 500 | ||
| SCB Communications Ltd | ||||
| SCC Group Telecoms Ltd | 70 Burners Lane, Milton Keynes MK11 3HD | 01908 305062 | ||
| Sceptre Networking Ltd | 16 Canvin Court Somerton Business Park Somerton Somerset TA11 6SB | 01458 273770 | ||
| Schmoozemobile | http://www.schmoozemobile.com/ | |||
| Schooltel Ltd | 23 Bedfordshire Down, Warfield, Bracknell, Berks RG42 3UA | 07050 287201 | http://www.schooltel.co.uk/ | |
| Scotland Telecom Ltd | ||||
| Scotnet | 103 Castle Street, Inverness IV2 3EA | 0845 270 0010 | ||
| Scott IT Ltd | Sycamore House 56 Oakfield Road Clifton BRISTOL BS8 2BG | 0800 279 1993 | ||
| Scottish and Southern Energy PLC | PO Box 7506, Perth PH1 3QR | 0845 678 0051 | http://www.scottish-southern.co.uk/ | |
| Scottish and Southern Energy Talk | http://www.southern-electric.co.uk/phoneandbroadband/products/ | |||
| Scottish Chambers Telecom | http://www.scottishchamberstelecom.co.uk/ | |||
| Scottish Hydro Electric | http://www.hydro.co.uk/ | |||
| Scottish Hydro-Electric | http://www.hydro.co.uk/ | |||
| ScottishPower PLC | Dalmore House, 310 St Vincent Street, Glasgow, G2 5BB | 0141 567 1234 | http://www.scottishpower.co.uk/ | |
| Scrimshaws Information Directories Ltd | 15 Ardbeg Avenue, Rutherglen G73 5NF | 0141 237 3843 | ||
| Sears Communications Ltd | 22 South Audley Street Mayfair, London W1K 2NY | 020 7491 7491 | ||
| Sebastian Tate Communications | Riverside House Warwick Road Carlisle Cumbria CA1 2BS | 07920 164453 | ||
| Secura Telecoms Ltd | 2a Ashfield Court 111 The Grive Ealing London W5 3SN | 0870 891 0876 | ||
| SeeTheLight | http://www.seethelight.co.uk/ | |||
| Select and Buy | http://www.selectandbuy.net/ | |||
| Select Telecom Ltd | Communication House Brunswick Industrial Est Brunswick Village Newcastle Upon Tyne NE13 7BA | 0191 2173960 | ||
| Selex Communications Ltd | Lucena House, Shaw Village Centre, Ramleaze Drive, Swindon SN5 5PY | 01793 879600 | 01793 879666 | http://selexcommunications.com/ |
| Selling Situations Ltd | Your First Contact E-Volve Business Centre Cygnet Way Tyne & Wear DH4 5QY | 0845 872 8888 | ||
| Semtec Ltd | 18 Chapel Street Petersfield, Hampshire GU32 3DZ | 0870 7377700 | ||
| Senokian Internet Ltd | Business Innovation Centre Binley Business Park Harry Weston Road Coventry CV2 2TX | 02476 233 400 | ||
| Sense Telecom | Hillcrest House 2 Woodland Avenue Wolstanton Newcastle, Staffordshire ST5 8AZ | 0843 224 7654 | ||
| Sensibill Ltd | Caspian House Timothy's Bridge Road, Statford-Upon-Avon CV37 9NR | 0845 2415514 | ||
| Sensim Telecom Ltd | AIS House 62 Anchorage Road Sutton Coldfield West Midlands B74 2PG | 0845 217 2030 | ||
| Sentinel Telecom Ltd | ||||
| Sentiro Ltd | 6 Cole Park View, St Margarets, Twickenham TW1 1JW | 020 8607 8530 | 020 8607 8531 | http://www.sentiro.com/ |
| Sentronex | 42 Southwark Street, London SE1 1UN | 020 7397 7400 | ||
| SEP Solutions | 31 Kimberley Road Nuthall, Nottingham NG16 1DA | 0845 0550577 | ||
| Serano Communications Ltd | ||||
| Serez Ltd | ||||
| Sermo Telecom Ltd | Knoll House Knoll Road Camberley Surrey GU15 3SY | 0845 4507950 | ||
| Service Direct Ltd | Advance House North Circular Road, London NW10 7SH | 0208 961 7000 | ||
| Service Direct (UK) Plc | ||||
| Service F1rst Ltd | PO Box 791 Over, Cambridgeshire CB4 5WW | 0845 4033 685 | ||
| Service Telecom Ltd | Orient House Newton Street, Hyde SK14 4RY | 0161 351 4800 | ||
| SES Computers | Banbury House 5 Market Street Weymouth Dorset DT4 8DD | 01305 774402 | ||
| SES Telecom | 167 Lymington Road, Christchurch, Dorset BH23 4JS | 0870 758 1100 | ||
| Sesui | Magdalen Centre Oxford Science Park, Oxford OX4 4GA | 08445 600600 | ||
| Setel | Tower House 226 Cromwell Road, London SW5 0SW | 08700 330270 | ||
| Seven Home and Away | ||||
| Severn Trent Telecoms | PO Box 6187, Nottingham NG5 1LE | 0870 179 1000 | http://www.stretailservices.co.uk/ | |
| ShaBean Ltd | http://www.mootel.co.uk/ | |||
| Shadowfax | http://www.sfax.co.uk/ | |||
| Shaftesbury Systems Ltd | 11th Floor Maple House High Street Potters Bar EN6 5BA | 0870 787 8586 | ||
| Shape Networks Ltd | Suite 6 28 Burton Street, London W1J 6QW | 0844 406 0880 | ||
| Shared Communications | Winchester House Deane Gate Avenue Taunton Somerset TA1 2UH | 0300 330 0530 | ||
| Sheaf Telecom Ltd | 23 Mauncer Drive, Sheffield S13 7JE | 0845 225 0003 | ||
| Shebang Distribution UK Ltd | 2 Lamport Court Heartlands Business Park Daventry Northants NN11 8UF | 01327 709 200 | ||
| Sherwood Solutions Ltd | ||||
| Shetland Broadband LLP | http://www.shetlandbroadband.co.uk/ | |||
| Shimmer Telecom Ltd | http://www.shimmertelecom.com/ | |||
| Shine Telecom Ltd | 127/129 Portland Street, Manchester M1 4PZ | 0845 4566990 | http://www.shinetelecom.co.uk/ | |
| Shipton Communications Ltd | Network Services Dept Shipton Comunications Ltd, 1 Frogmore Industrial Estate Frogmore Road, Hemel Hempstead Hertforshire HP3 9TG | 01442 345600 | ||
| Shire Computer Services Ltd | 66 Dorchester Road Solihull, West Midlands B91 1LJ | 0845 3309 463 | ||
| Shirley Computer Services Ltd | 25 Spring Lane Woodside, London SE25 4SP | 020 8655 1696 | ||
| Shore Communications | Mint House 4-6 Stanley Road Wallington Surrey SM6 0EU | 0870 4299876 | http://www.shorecomms.co.uk/ | |
| Shropshire ITC Ltd | Unit 4 Sweetlake Court Mercian Close, Shrewsbury SY3 9GE | 01743 562 200 | ||
| Siebert Industries Ltd | Blackfaulds House Drumhead Place Cambuslang Investment Park Cambuslang, Glasgow G32 8EY | 0870 050 2266 | ||
| Siemens Communications Ltd | Turnells Mill Lane, Wellingborough Northamptonshire NN8 2RB | 01933 444 363 | ||
| Sigma Telecom Ltd | 29 Gay Street Bath, BA1 2NT | 01225 444464 | ||
| Sigma Voice Solutions | Trafalgar House Fullbridge Maldon Essex CM9 4LE | 0844 7700075 | ||
| Signum Corporate Communications Ltd | The Old Rectory Main Street, Glenfield, Leicester LE3 8DG | 0870 170 9696 | http://www.signum-Communications.com/ | |
| Silver Lining Convergence Ltd | Silver Lining Convergence Limited Unit 20 Regent Trade Park Barwell Road PO13 0EQ | 07789 625907 | ||
| SimpleCall | 4-6 Davenant Street, Unit A, London E1 5NB | 020 7870 3480 | 020 7691 7719 | http://www.simplecall.com/ |
| Simplicity Communications Ltd | Kings House Station Road Kings Langley Hertfordshire HP1 3DP | 0844 669 1276 | ||
| Simplisity Communications Ltd | 29a Nascot Wood Road Watford, Herts WD17 4WE | 08700 420 484 | ||
| Simply IP Ltd | 158 Courthill House Water Lane Wilmslow Cheshire SK9 5AJ | 01565 633521 | ||
| Simply-Fone Ltd | PO Box 20338, London NW11 9ZW | 0844 545 9876 | 084 4545 9877 | http://www.simplyfone.com/ |
| SimplyLINES | http://www.adtsystems.co.uk/ | |||
| Simwood eSMS | Falcon Drive Cardiff Bay, Cardiff CF10 4RU | 029 2120 2121 | ||
| SingTel (Europe) Ltd | 201-203 City Road, London EC1V 1JN | |||
| SiPalto Ltd | 81b De Beauvoir Road, London N1 4EL | 020 7148 7526 | ||
| Sipgate | http://www.sipgate.co.uk/ | |||
| SipliciTalk (UK) Ltd | The Old Bakery 11a Canford Lane Westbury On Trym Bristol BS9 3DE | 0117 971 7722 | ||
| Siplicity Voice & Data Ltd | The Lodge Offices 35 Sturminster Road, Bristol BS14 8BQ | 0117 971 7722 | ||
| SIPsys Ltd | Charwell House Wilsom Road Alton Hampshire GU34 2PP | 0845 0045059 | ||
| Siptel Net Ltd | Surrey Research Park 40 Occam Road Guildford SURREY GU2 7YG | 0870 871 1400 | ||
| Sirocom Ltd | St. Georges Business Park Weybridge, Surrey KT13 0TS | 01932 264 700 | ||
| Sirus Ltd | 27b Hursley Road Chandlers Ford Eastleigh Hampshire SO53 2FS | 02380 258900 | http://www.sirus-telecom.co.uk/ | |
| Siruscom | http://www.sirus-telecom.co.uk/ | |||
| Sitel Ltd | The Coach House Berden, Bishops Stortford CM23 1AB | 0844 8006202 | ||
| Sitelink Communications Ltd | 18 Bridgewater Road Hertburn Industrial Estate Washington Tyne and Wear NE37 2SG | 0191 418 0110 | ||
| Six Degrees Unified Comms Ltd | 44-48 Paul Street, London EC2A 4LB | 020 7257 6100 | 020 7257 6101 | http://www.6dg.co.uk/ |
| Six Degrees Unified Comms (KAM) Ltd | ||||
| Skills Develper Ltd | Malvern House New Road, Solihull B91 3DL | 0121 2700370 | ||
| Sky Blue Telecom Ltd | http://www.skybluetele.com/ | |||
| Sky Premium Telecom | 0777 929 8428 | http://www.skypremiumtelecom.com/ | ||
| Sky Subscribers Services Ltd | PO Box 43, Livingston, West Lothian EH54 7DD | 0844 241 0499 | 01506 484343 | http://www.sky.com/skytalk |
| Sky Telecom Ltd | 82 King Street, Manchester M2 4WQ | 0161 935 8164 | 0161 935 8001 | http://www.sky-telecom.co.uk/ |
| Sky Teledata Ltd | Rugby Chambers 2 Rugby Street Holborn London WC1N 3QU | 020 7096 6367 | ||
| Skycom Ltd | Digital House, High Street, Hadleigh, Ipswich IP7 5EL | http://www.skycomuk.com/ | ||
| Skymaker Ltd | Unit 12, Lady Lane Industrial Estate, Hadleigh, Ipswich IP7 6BQ | 01473 823344 | 01473 827312 | http://www.skymaker.co.uk/ |
| Skymarket | ||||
| Skynet | http://www.skynet.co.uk/ | |||
| Skype Communications SA | PO Box 75538, Luxembourg 1070 AM, Luxembourg | http://www.skype.com/ | ||
| Skytel | ||||
| Skyweb | ||||
| Sleek Networks | ||||
| SLiMtel Ltd | Suite 13 Salisbury House 2 Buddle Street Wallsend NE28 6EH | 03333 44 2345 | ||
| Smallworld | http://www.smallworldmedia.com/ | |||
| Smallworld Cable Ltd | 3 Chalmers Place, Riverside Business Park, Irvine, N Ayrshire KA11 5DH | 01524 313131 | http://www.smallworldcable.com/ | |
| Smart Connection Co Ltd | Farrington Road, Burnley BB11 5FH | 01282 463 102 | ||
| Smart IPX Ltd | 13 Selsdon Way, London E14 9GL | 020 7001 6718 | ||
| Smart IT Support Ltd | 320J Mayoral Way Team Valley Trading Estate, Gateshead NE11 0RT | 0845 463 1982 | ||
| Smart Marketing Services Ltd | ||||
| Smart Numbers Ltd | 20-22 Richfield Avenue, Reading RG1 8EQ | 08450 178 179 | ||
| Smart Talk Solutions Ltd | 19 Crane Street, Pontypool NP4 6LY | 01495 759615 | ||
| SmartCall Direct Ltd | Windmill Business Park, 304 Commonside East, Mitcham, Surrey CR2 1HX | 020 8684 3500 | 020 8239 1008 | http://www.smartcall.co.uk/ |
| Smartcom Plus Ltd | Dalton House 60 Windsor Avenue, London SW19 2RR | 0845 873 7331 / 07900 076302 | ||
| Smartech UK Plc | 25 City Road, London EC1Y 1AA | 020 7689 5678 | ||
| Smarter Solutions UK Ltd | 49 Cariocca Business Park Sawley Road, Manchester M40 8BB | 0800 084 5386 | ||
| Smartinfo | 49-59 Old Street, London EC1V 9MX | 0870 750 0848 | ||
| SME System Solutions Ltd | Units 1-3 85b Ashford Road Eastbourne East Sussex BN21 3TE | 01323 648666 | ||
| SMH Company (UK) Ltd | PO Box 400 Darlington, Co. Durham | 01325 363467 | ||
| Smile Telecoms Ltd | June Almond House Mary Street, Manchester M3 1DZ | 0161 834 3316 | ||
| Smye-Rumsby | http://www.smye-rumsby.co.uk/ | |||
| So Internet | http://www.sointernet.com/ | |||
| Socom Networks | 18 Avon Close, Marple Cheshire SK6 63Q | 0844 800 4172 | ||
| Softlink Solutions | http://www.essexinternet.com/ | |||
| SoftSwitch Telecom | ||||
| Soft-Teck Ltd | 117 Lombard House 2 Purley Way, Croydon CR0 3JP | 02034884884 | ||
| Software Automation Services UK Ltd | 22 Bolton Close Isleport Business Park Highbridge Somerset TA9 4JR | 0844 264 0844 | ||
| Software Cellular Network | ||||
| Softwire Voice and Data Ltd | 69 Dalkeith Road, Dundee DD4 7HF | 01382 453 344 | ||
| Solacom Ltd | 127 - 129 Portland Street, Manchester M1 4PZ | 0845 683 2575 | ||
| Solar Communications Ltd | 33 Portland Square, Bristol BS2 8RG | 0117 901 6000 | 0117 901 6001 | http://www.solar.co.uk/ |
| Solex Systems Ltd | 10 The Highway Hawarden, Flintshire CH5 3DH | 01244 784200 | ||
| Solid Systems Computer Services Ltd | Ajit House Prime Enterprise House Prime Parkway Derby DE1 3QB | 08700 772 726 | ||
| Solution Consultants | Woodberry Cottage Green Lane Pangbroune Berkshire RG8 8LD | 0871 222 2133 | ||
| Solution IP Communications Ltd | 3, Basement Flat Buckingham Place Clifton Bristol BS8 1LH | 0871 222 9422 | http://www.solutionip.co.uk/ | |
| MDNX Managed Services Ltd | Sugarbond 2 Anderson Place, Edinburgh EH6 5NP | 0870 9061111 | ||
| Solutions in Technology (IT) Ltd | Raglan House Llantarnam Park Cwmbran Gwent NP44 3AB | 01633 48700 | ||
| Solutions Inc Ltd | The Joinery 255 Old Shoreham Road Brighton & Hove East Sussex BN3 7ED | 01273 200777 | ||
| Solutios | 38 Skyline Court Grange Yard, London SE1 3AN | 020 7167 - 5555 | ||
| SolwiseTelephony Ltd | Dennis House, Hawley Road, Hinckley Leics LE10 0PR | 0845 006 0800 | 0871 872 0866 | http://www.solwisetelephony.co.uk/ |
| Something Corporation Plc | 240 High Holborn, London WC1V 7DN | 0871 664 1500 | ||
| SOMLINK ltd | 255a Harehills Lane, Leeds LS8 3RG | 07867 601415 | ||
| Sospito Communications Ltd | 29th Floor One Canada Square Canary Wharf London E14 5DY | 08701 458 280 | ||
| Sota Solutions Ltd | ||||
| Sound Advertising Ltd | Floor 2, Cumbrian House, 217 Marsh Wall, London E14 9FS | 020 7308 5555 | ||
| Sound Telecom (UK) | ||||
| South Cheshire Ltd - | 6 High Street, Nantwich Cheshire CW5 5AR | 01270 627496 | ||
| South Tyneside Council | Town Hall & Civic Offices South Shields, Tyne and Wear NE33 2RL | 0191 427 1717 | ||
| South West Communications Group Ltd | Communications House Moor Lane Sowton Exeter EX2 7JA | 01392 369369 | http://www.swcomms.co.uk/ | |
| South West I.T Solutions Ltd | Office 10 Farm Road Caddsdown Business Park Bideford Devon EX39 3BT | 0845 658 8662 | ||
| Southern Communications Ltd | Glebe Farm, Down Street Dummer Basingstoke Hampshire RG25 2AD | 0845 634 0800 | ||
| Southern Electric | http://www.southern-electric.co.uk/ | |||
| Southern Electronic Services Ltd | Banbury House Market Street Weymouth Dorset DT4 8DD | 01305 774 402 | ||
| Southern Telecom Ltd | 15 Blackmoor Drive West Derby, Liverpool L12 9ED | 0844 474 4100 | ||
| Sovereign Communications Ltd | ||||
| SoVision | http://www.sovision.com/ | |||
| SPA Business Services Ltd | Crossbow House 40 Liverpool Road, Slough SL1 4QZ | 01753 610540 | ||
| Spa Telecoms Ltd | Raglan House Westminster Bank West Malvern Worcs WR14 4BN | 01684 580591 | ||
| Spacetel UK Ltd | 15 Bowling Green Lane, London EC1R 0BD | 020 7899 4000 | 020 7899 5000 | http://www.spacetel.co.uk/ |
| Sparkle Telecom Ltd | 27 Old Gloucester Street, London WC1N 3AX | http://www.sparkletelecom.co.uk/ | ||
| Sparks Business Systems Ltd | Bank Building Bridgend Industrial Estate, Bridgend CF31 3SB | 0870 3003335 | ||
| Sparta Telecom Ltd | 37 Flint Close, Luton LU3 3LX | 01582 259 605 | ||
| Speak Media Ltd | Suite 1 The Old Bank 2 Coventry Street Stourbridge, West Midlands DY8 1EP | 0844 418 0910 | ||
| SpeakUp BV | Postbus 1330, 7500 BH Enschede, Netherlands | 31 88 7732587 | 31 88 7732588 | http://www.speakup.nl/ |
| Specialist Contractors Confederation Ltd | Oak Lodge Farm Lodge Lane East Farliegh, Maidstone Kent ME15 0HQ | 0870 042 1710 | ||
| Specialist Cost Auditing Ltd | 3 Finsbury Square, London EC2A 1AE | 020 7965 8800 | ||
| Spectrum Telecommunications Ltd | Thatched Cottage Woodhouses Yoxall Burton-on-Trent DE13 8NR | 0845 450 8292 | ||
| Speedy Asset Services Ltd | Speedy Asset Services Ltd Chase House Newton le Willows Merseyside WA11 9SG | 01942 896 565 | ||
| Spinvox | ||||
| SpiriTel Networks Ltd | Dobson Park Way Ince, Wigan WN2 2DX | 01942 221122 | ||
| SpiriTel Technologies Ltd | 18 King William Street, London EC4N 7BP | 020 7160 0100 | ||
| Spitfire Network Service | http://www.spitfire.co.uk/ | |||
| Spitfire Network Services Ltd | 6-7 SBBC Ponton Road, London SW8 5BL | 020 7501 3030 | http://www.spitfire.co.uk/ | |
| Splash Telecom | 43 Cariocca Business Park, Hellidon Close, Manchester, M12 4AH | 0870 411 8811 | 0870 411 2112 | http://www.splashtelecom.net/ |
| Splitsec Ltd | Waterfront House New Brunswick Thornes Lane Wakefield WF1 5QW | 0845 4090080 | ||
| Sports Tel | ||||
| Spread Media Ltd | Unit 9, Wheatley Business Centre Old London Road Wheatley Oxford OX33 1YW | 0870 243 3086 | ||
| Sprint Ltd | Unit F Hove Technology Centre St Josephs Close Hove BN3 7ES | 0870 608 2801 | ||
| Sprint Communications Systems | MKM House 6-16 Baron Road South Woodham Ferrers Essex CM3 5XQ | 0844 5449540 | ||
| Sprint Convergance Ltd | Wrest Park The Mansion House Sisoe Bedfordshire MK45 2RH | 0845 873 0222 | ||
| Sproutt Ltd | Tredomen Innovation Centre Tredomen Business Park Hengoed Mid-Glamorgan CF82 7FN | 08456 446640 | http://www.sproutt.com/ | |
| Square 1 Communications | ||||
| Square Systems | ||||
| Squaretech Ltd | Suite 2 Vista Business Centre 50 Salisbury Road Hounslow, Middlesex TW4 6JQ | 0800 082 1083 | ||
| SRS Telecom Ltd | Communications House Pitreavie Drive Dunfermline, KY11 8US | 01383 841 200 | ||
| Neos Networks Ltd | 55 Vastern Road, Reading RG1 8BU | 0845 070 4301 | 0118 953 4585 | http://www.ssetelecoms.co.uk/ |
| SSP Com Ltd | ||||
| Star Europe Ltd | 626 Chiswick High Road
London W4 5RY |
020 8580 5150 | 020 8580 5155 | |
| Star Technology Services Ltd | Brighouse Court Barnett Way, Gloucester GL4 3RT | 0845 604 7376 | ||
| Star Telecom | 9 St James Street, Walthamstow London E17 7PJ | 07525 371504 | ||
| Starcomm Ltd | 1 School House Terrace, Kirck Deighton, North Yorkshire LS22 4EH | http://www.starcomm.co.uk/ | ||
| Stardex (UK) | 21 Ashton Road Glasgow, Strathclyde G12 8SP Scotland | 0870 792 8888 | ||
| Startec Global Communications UK Ltd | 2nd Floor, Berkeley Square House, Berkeley Square, London W1X 6EA | 020 7940 2850 | http://www.startec.com/ | |
| Startel Ltd | ||||
| STEL Communications | ||||
| S-Tel Communications Group Ltd | ||||
| Stella Communications Ltd | PO Box 303, Plymouth PL8 1XQ | 0870 033 0522 | ||
| Stem Networks | 10 Thornbury Road Estover, Plymouth PL6 7PP | 01752 692205 | ||
| Sterling Syncordia | Sterling House 102a Station Road Sidcup Kent DA15 7DE | 08453 109010 | ||
| Sterling Telecommunications Ltd | ||||
| Stirling IT Solutions LLP | ||||
| STL Communications Ltd | Park House Station Lane Witney Oxon OX28 4LH | 01993 777144 | ||
| Storacall Technology | Storacall Technology Ltd (Trading As X-ON) Technology Center Station Road Framlingham, Suffolk IP13 9EZ | 0870 345 5577 | ||
| Storm Technology Solutions Ltd | 20 Hanover Square, London W1S 1JY | 0845 456 7014 | ||
| Story Telecom | Britannia House, 958 High Road, London N12 9RY | 0845 108 4450 | 0845 108 4551 | http://www.storytelecom.com/ |
| Stour Marine | ||||
| Straight Talking Telco Ltd | Premier Business Centre 47-49 Park Royal Road, London NW10 7LQ | 020 7998 6898 | http://www.sttelco.co.uk/ | |
| Stranks Communications | ||||
| Strategic Network Consulting Ltd | 26 York Street, London W1U 6PZ | 0845 543 6151 | ||
| Stratiis Ltd | Pavillion 1 15 Cambuslang Road, Glasgow G32 8NB | 0845 644 0771 | ||
| Stream Networks Ltd | Gainfield House Gainfield, Faringdon SN7 8QQ | 01635 884 170 | ||
| Stripe 21 Ltd | The Atrium Curtis Road Dorking Surrey RH4 1XA | 0845 872 2121 | ||
| Stronghold IT Services Ltd | Woodfield Business Centre Carr Hill Doncaster South Yorkshire DN4 8DE | 01302 515 140 | ||
| Structured Communications Ltd | St Martins House 16 St Martins Le Grand, London EC1A 4EN | 020 3195 3333 | ||
| Subhan Universal | ||||
| Sumlock Electronics (NE) Ltd | Planet House Northumbrian Way Killingworth Newcastle Upon Tyne NE12 6EH | 0191 216 4868 | http://www.sumlock.co.uk/ | |
| Sun Management Ltd | ||||
| Sun Telecommunications Europe Ltd | Compass House, 80-82 Newmarket Road, Cambridge | 01223 464 786 | ||
| Sundial Telecom Ltd | Newton House 2 Pioneer Court Chivers Way Histon, Cambridge CB24 9PT | 0844 801 4000 | ||
| Sunley Communications Ltd | 6 Flamstead end road Cheshunt, Herts EN8 OHH | 01992 645 040 | ||
| Sunrise Unified Solutions Ltd | 24-25 Broughton Grounds Lane, Milton Keynes MK16 9HZ | 01908 200770 | ||
| Sunstone Telecom | West Wing (1st Floor) Queensway House 207-209 Queensway, Bletchley Milton Keynes MK2 2ED | 01908 370981 | ||
| Supanet Ltd | Indigo House Blackburn Road Simonstone Burnley, Lancashire BB12 7NQ | 0870 830 3122 | http://www.supanet.com/ | |
| SuperLine Telecommunications Ltd | 46 Cannon Street, London EC4N 6JJ | 020 7148 3333 | 020 7148 3334 | http://www.superline.co.uk/ |
| Supply Communications | Unit A1 Church Lane Business Park Church Lane Nursling Southampton SO16 0YB | 0844 414 20 30 | http://www.thesupplygroup.co.uk/ | |
| Support Telecom Ltd | Unit 4, Rays Farm Barns Roman Road Ingatestone Essex CM4 9EH | 0800 8048840 | ||
| Support UK | Indigo E Rainbow Industrial Estate Trout Road West Drayton UB7 7XT | 0845 0580330 | ||
| support-uk | http://www.support-uk.com/ | |||
| Supreme Connect | 2 Redhouse Square, Duncan Close, Moulton Park, Northampton NN3 6WL | 0844 567 9723 | http://www.supremeconnect.co.uk/ | |
| Sure Telecom Ltd | SK3 0BT | 0843 506 6100 | ||
| Sureline Communications Ltd | The Old Coach House Mill Yard Swan Street West Malling, Kent ME19 6LP | 01732 252 000 | ||
| Suretec Systems Ltd | Unit 18, The James Gregory Centre, Aberdeen Science and Technology Park, Bridge of Don, Aberdeen, AB22 8GU | 01224 279484 | 01224 824887 | http://www.suretecsystems.com/ |
| Surfwise | http://www.surfwise.co.uk/ | |||
| Suzugia Ltd | Bullimores House Church Lane, Cranleigh GU6 8AR | 01483 268834 | ||
| Svargtel | ||||
| Swains | http://www.swainstel.co.uk/ | |||
| Swains Voice & Data plc | Eastland House Hunstanton Norfolk, PE36 5EW | 0845 241 4100 | http://www.swainsplc.co.uk/ | |
| SWALEC | http://www.swalec.co.uk/ | |||
| Swan Communications (South West) Ltd | Castle View Barn Woodmanton Woodbury Devon EX5 1HQ | 0800 8404 007 | ||
| Sweet Telecom Ltd | 19 Station Road Romsey, Hants SO51 8DP | 0808 202 2021 | http://www.sweet-telecom.com/ | |
| Swift Communication Ltd | Blakedown House Village Farm Estate, Bridgend CF33 6BJ | 01656 303030 | ||
| Swift Telecom Ltd | Howard House Bryon Avenue, Felixstowe IP11 3HZ | 0870 1690070 | ||
| Swift Telecom (Network Solutions) | http://www.swift-telecom.co.uk/ | |||
| Swift Telecommunications UK Ltd | ||||
| Swiftnet Ltd | Britannia House, 960 High Road, London N12 9RY | 020 8497 9200 | http://www.swiftnet.co.uk/ | |
| SWIS Communications Ltd | 11b Sherbrook Hill Budleigh Salterton, Devon EX9 6DA | 0870 066 6608 | ||
| Switch Communications | Units 1&2 Hogarth Court Hogarth Crescent, Croydon CR0 2JE | 020 8664 5555 | ||
| Switch Providers Ltd | 3 Trinity Street Stratford-upon-Avon, Warwickshire CV37 6BL | 0871 5 75 75 20 | ||
| Switch Telecoms Ltd | Building 891 Plymouth Road Trading Estate, Slough SL1 4EE | 01753 696 556 | ||
| Switch Utilities | Newbrook House 385 Alfreton Road, Nottingham NG7 5LR | 0845 634 1005 | ||
| Switch2 Telecoms Ltd | Sir John Moore Building 100 Old Hall Street, Liverpool L70 1AB | 0151 235 2222 | http://www.switch2telecoms.co.uk/ | |
| Switch2Mobile Ltd | Elwood House 42 Lytton Road Barnet Hertfordshire EN5 5BY | 0871 666 4293 | ||
| Switchconnect Ltd | Switch House, 3 Berkeley Crescent, Bristol BS8 1HA | 0845 652 2222 | 0845 652 2223 | http://www.switchnumbers.co.uk/ |
| Sycross Attain Ltd | Wheelwrights Barn 1 Haslemere Road Fernhurst West Sussex GU27 3EA | 0333 24000075 | ||
| Synectiv Ltd | 4 Apsley Way, London NW2 7HF | http://www.synectiv.com/ | ||
| Synergy Corp Ltd | 21 Park Royal Metro Center Britannia Way LONDON NW10 7PA | 020 8965 8964 | ||
| Synergy Office Solutions LLP | 81 High Street Potters Bar, Hertfordshire EN6 5AS | 01707 291 291 | ||
| Synergy Telecom | ||||
| SynergyOne Ltd | Salisbury House 81 High Street Potter Bar Herts EN6 5AS | 01707 291291 | ||
| Synetrix Ltd | Innovation Centre Keele Park, Staffordshire ST5 5NB | 01782 338200 | ||
| Synety Ltd | Studio 4, Phoenix Square, 1 Burton Street, Leicester LE1 1TB | 0844 848 8494 | http://www.synety.com/ | |
| Synex Network Services Ltd | Warwick House 35 Spring Road, Hall Green, Birmingham B11 3EA | 0808 144 4040 | ||
| Syntec UK Ltd | Network Operations Unit, 18 The Avenue, London W13 8PH | 020 8991 0200 | ||
| Synthesis IT Ltd | Amron House Borough Road North Sheilds Tyne & Wear NE29 6RN | 0191 270 4371 | ||
| Syscomm Ltd | Syscomm House Park Road Kenilworth Warwickshire CV8 2GF | 01926 856000 | ||
| System Information Technology Ltd | 1 Merchants Drive Parkhouse Carlisle Cumbria CA3 0JW | 01228 516 555 | ||
| System Online Ltd | 250 Main Road Gidea Park Romford Essex RM2 5EQ | 0845 643 0720 | ||
| Systematix Computer Solutions Ltd | Claverton House Love Lane, Cirencester GL7 1YG | 0870 845 1525 | ||
| Systemcare (Uk) Ltd | 108 Worth Street, Portslade, East Sussex BN41 1DG | 0870 166 2400 | http://www.systemcareuk.com/ | |
| Systems (Telecoms) Ltd | https://www.systemstl.co.uk/ | |||
| Systems Intergration UK Ltd | Marquis Drive Moira Swadlincote Derbyshire DE12 6EJ | 0844 375 7000 | ||
| Systems Supported Ltd | 11A Camp Road North Camp Farnborough Hampshire GU14 6EN | 01252 333888 | ||
| SystemTalk Ltd | Berkeley House 18-24 High Street Edgware Middlesex HA8 7RP | 0845 051 8264 or 020 8150 9300 | ||
| T 7 Solutions | ||||
| T I Crystal Ltd | 5-7 Vaughton Street South, Birmingham B12 0YN | 0871 2262135 | ||
| T.T.C. Ltd | Telephone House New Pudsey Court 105 Bradford Road Pudsey, Leeds LS28 6AT | 0113 236 2500 | ||
| T.T.N.C. Ltd | Carlton House 101 New London Road Chelmsford Essex CM2 0PP | 0870 468 6868 | ||
| T1 Telecom's Ltd | Coates School 2 Jersey Street, Manchester M4 6JB | 0870 9022020 | ||
| T24 Ltd | The Terraces Tannery Court Tanners Lane Warrington, Cheshire WA2 7NR | 01925 259401 | http://www.t24ltd.com/ | |
| T2M Telecom Ltd | T2M House Mallard Business Centre Mallard Road Bretton, Peterborough PE3 8YR | 0845 603 0603 | ||
| Tacstalk (Thomson Alarms & Comms Systems Ltd)(Tacs) | 3 Ryeside Mills Drakemyre, Dalry KA24 5JD | 01294 835000 | ||
| Tadiran UK Ltd | 11-15 Columbus Walk, Cardiff CF10 4BZ | 02920 020 700 | ||
| Tailored Telecoms Ltd | Tailored Telecoms Cust. Services PO Box 270, Leeds LS14 9AU | 0845 358 1000 | ||
| TailorMade Talk Ltd | Bridge House 7/9 Church Road, Bristol BS5 9JJ | 0117 9559830 | ||
| Takeda Telecom | Cygnet Court Hawthorn Street Wilmslow Cheshire SK9 5EL | 01625 416 200 | ||
| Talk (Voice & Data) Uk | ||||
| Talk Cheap Ltd | 23 Lower Green Poulton Lancashire, FY6 7JL | 01253 899 482 | ||
| Talk Fair Ltd | The Weston Centre, Crewe Cheshire CW1 6FL | 01270 898501 | ||
| Talk Greener Ltd | Units 3-4 Boundary Business Court 92-94 Church Road Mitcham, Surrey CR4 3TD | 020 8274 4040 | ||
| Talk Internet Ltd | Suite 12, Xpdia, Crab Lane, Warrington., WA2 0XP | 0845 310 1010 | http://www.talkinternet.co.uk/ | |
| Talk Internet (Talk 101) | http://www.talk-101.com/ | |||
| Talk Mobile | http://www.talkmobile.co.uk/ | |||
| Talk Numbers | 6 Nautica 4 Burtley Road Bournemouth Dorset BH6 4AP | 0844 808 0005 | ||
| Talk On Ltd | Armour House Armour Road Reading, RG31 6HF | 0870 224255 | ||
| Talk Online Ltd | 2 Harbour Exchange Square, London E14 9GE | http://www.netcalls4less.com/ | ||
| Talk Plus Telecom Ltd | 5th Floor Swan Court Waterhouse Street Hemel Hempstead, Herts HP1 1DS | 08448 759041 | ||
| Talk Straight Ltd | Mayfield House 5a Little Lane IIkley West Yorkshire LS29 8EA | 01133 221 880 | ||
| Talk Telecom Ltd | PO Box 1222, Norwich NR15 1WL | 0800 067 6800 | http://www.streamlive.co.uk/talktelecom/ | |
| TALK Telecommunications Ltd | ||||
| Talk Together (Wales) Ltd | 30b Cowbridge Road Pontyclun, Mid Glamorgan CF72 9EE | 01443 449929 | ||
| Talk UK | 25 Castlegate Berwick-upon-Tweed Northumberland, TD15 1LF | 0870 224 1400 | ||
| Talkativo Ltd | Enterprise House Mile Oak Industrial Estate Maesbury Road Oswestry SY10 8GA | 0844 264 1070 | ||
| TalkCheaper.net | http://www.talkcheaper.net/ | |||
| Talkdtalk | http://www.talkdtalk.com/ | |||
| Talkinfo Ltd | Voice House 12 Beech Grove Gosport Hampshire PO12 2EJ | 023 9234 7206 | ||
| Talking Business Southern Ltd | Unit 31, The Ridgeway Industrial Estate Iver Slough Berkshire SL0 9HW | 01753 659 821 | ||
| Talking Technology Ltd | Technology House 11 Palmerston Road, Sutton, Surrey SM1 4QL | |||
| Talkline Communications | ||||
| Talknet Systems | 65 Hillview Road High Bonnybridge, Falkirk FK4 2ER | 0870 7515201 | ||
| TalkNTalk | http://www.talkntalk.co.uk/ | |||
| TalkTalk Telecom Ltd | 1 Portal Way, London W3 6RS | 020 8896 5000 | 020 8896 5005 | http://www.talktalk.co.uk/ |
| TalkTalk Communications Ltd | Stanford House, Garrett Field, Birchwood, Warrington WA3 7BH | 0845 330 3456 | 0845 330 6789 | http://www.talktalkbusiness.co.uk/ |
| Talktoafrica | http://www.talk2africa.com/ | |||
| Talkya Communications UK Ltd | 198 Ashenhurst Road Dudley, West Midlands DY1 2HZ | 0844 412 4498 | ||
| Tamar Telecommunications (Kalnet4u Ltd) | 81 St Modwen Road, Parkway Ind Estate, Plymouth PL6 8LH | 01752 548143 | 0870 005 3312 | http://www.tamartelecommunications.co.uk/ |
| Tancroft Communications Ltd | Studio House 42 Ravenshurst Avenue, London NW4 4EG | 020 8457 6000 | ||
| Tanla Solutions (UK) | 0844 884 5050 | http://www.tanlasolutions.com/ | ||
| Taphon Ltd | 5 Olympic Business Centre Paycocke Road Basildon Essex SS14 3EX | 01268 530 066 | ||
| Target Internet Ltd | Arthur Last House Altbarn Road Colchester Essex CO2 8LG | 0845 652 1772 | ||
| Tariff Reduction Services Ltd | The Hollies Chester Road, Whitchurch, Shropshire SY13 1LZ | 0870 777 1124 | http://www.tariff.com/ | |
| Task Communications Ltd | Botwell House 254c High Road Benfleet Essex SS7 5LA | 01268 881001 | ||
| Tata Communications (UK) | http://www.tatacommunications.com/ | |||
| Taunton Broadband | http://www.tauntonbroadband.co.uk/ | |||
| Taurus Clearer Communications Ltd | Orchard Court Heron Road Sowton Estate, Exeter Devon EX2 7NR | 01392 202000 | ||
| Taylor Made Computer Solutions Ltd | Leroux House Cams Hall Estate, Fareham PO16 8UL | 01329 239900 | ||
| TCIPNet Ltd | 45 New Bond Street, London SW11 1LJ | 020 7355 2333 | ||
| TCL Communications Ltd | 67 Crabtree Lane, London SW6 6LP | 020 7381 1321 | ||
| TCL Systems Ltd | 89 Queensmill Road, London SW6 6LP | 020 7381 1321 | ||
| TDC Global Plc | 11 Somerset Road Edgbaston, Birmingham B15 2QB | 0121 693 1017/1018 | ||
| Team Partners Telecommunications Ltd | 16 Whitehouse Street, Bristol BS3 4AY | 0845 833 4555 | ||
| Team Telecom | http://www.teamtelecomukltd.com/ | |||
| Team Telecom UK Ltd | 5 Windsor Court Clarence Drive, Harrogate HG1 2PE | 08451 261 621 | ||
| Tech First Ltd | Howley Park Business Village Pullan Way, Leeds LS27 0BZ | 0844 264 0280 | ||
| Tech Networks Ltd | 11 Lisbon Square, Leeds LS1 4LY | 0870 300 3110 | ||
| Techcomm Ltd | The Lodge Oakridge Avenue, Radlett WD7 8EW | 0845 389 9110 | ||
| Gracemoore Managed Networks Ltd | 14 Dedham Vale Business Centre Manningtree Road Dedham Essex CO7 6BL | 0844 858 4510 | ||
| Technologies Telecom Ltd | SW6 6TU | 0870 224 9901 | ||
| Technology Box Ltd | 45 Robertson Street Hastings, East Sussex TN34 1HL | 0845 890 4717 | ||
| Technology Distribution | ||||
| Technology Services Group | One Gosforth Parkway Gosforth business Park, Newcastle Upon Tyne NE12 8ET | 0191 2561166 | ||
| Technology Telecom Ltd | 37-39 Hawbank Road, East Kilbridge G74 5EG | 01355 595 323 | http://www.technologytelecom.com/ | |
| Techtel Communications Ltd | ||||
| Techxpert | 2 Hartsbourne Drive, Bournemouth BH7 7JB | 01202 425007 | ||
| Tecnica Communications Ltd | The Malvern Suite Borough Mill Neild Street Oldham OL8 1QG | 0161 622 2916 | ||
| Tectrix Solutions Ltd | Unit 3e Stag Industrial Estate Atlantic Street Altrincham Cheshire WA14 5DW | 0845 058 9393 | ||
| Teesside Technology Solutions Ltd | South Tees Business Centre Puddlers Road, Middlesbrough TS6 6TL | 0845 634 6263 | ||
| TelaPal (UK) | ||||
| Telappliant Ltd | 38-39 St. John's Lane, London EC1M 4BJ | 0845 004 4040 | 0845 004 0401 | http://www.telappliant.com/ |
| TelBridge | http://www.telbridge.co.uk/ | |||
| Tel-bureau Ltd | 10th Floor Alexandra House Alexandra Road Swansea SA1 5ED | 01792 646101 | ||
| TelCo Management Ltd | 94-95 NMBC Knowlsley Industrial Park Knowsley, L33 7UY | 0151 545 4500 | ||
| Telcoinabox Ltd | Lemon Studios 85 Clerkenwell Studios, London EC1R 5AR | 020 3326 5555 | ||
| Telconline Inc | ||||
| Tele Dot Comm Ltd | Diva House 10 Hawthorn Close, New Milton, Hampshire BH25 5BB | 01425 619 636 | ||
| Tele2 UK Services | 391 Richmond Road Twickenham, Middlesex TW1 2EF | 020 7894 9880 | ||
| Telebusiness Ltd | 51 Chaplin Close, Salford M6 8FW | 0161 8701870 | ||
| Telecall Ltd | http://www.telecall.uk.com/ | |||
| Telecall Communications Ltd | Flint House Bakery Lane Bognor Regis West Sussex PO21 1UR | 07092 312 455 | ||
| Telecom (GB) Ltd | Cyprus House, 94-96 Cyprus Road, Leicester LE2 8QS | 0116 283 8880 | http://www.telecomgb.co.uk/ | |
| Telecom 123 Ltd | BSC Centre Innovation Centre Hood Road Barry CF62 5QN | 0800 1244123 | ||
| Telecom 150 Ltd | 192 Hill Village Road Sutton Coldfield, West Midlands B75 5JG | 0800 5429150 | ||
| Telecom 2000 Ltd | 3 Minster Industrial Park West Moors Wimborne Dorset BH21 6QF | 01202 895 111 | ||
| Telecom 4 Business Ltd | ||||
| Telecom Bill Ltd | P O Box 13 Portrush, Co. Antrim BT56 8WZ | 08700 493 821 | ||
| Telecom Direct Ltd | 20 Park Gate Milton Park, Abingdon, Oxon OX14 4SH | 01235 442 300 | http://www.telecomdirect.co.uk/ | |
| Telecom Essex | ||||
| Telecom Express | ||||
| Telecom Maintenance | 77 Mount Street, Liverpool L3 5TB | 0151 7091212 | ||
| Telecom Network Services Ltd | 3 Longthorn Backwell, Bristol BS48 3GZ | 0845 050 3035 | ||
| Telecom Network Solutions Ltd | 39 Aldershaw, Shirley,, West Midlands B90 1SQ | 0800 157 7700 | ||
| Telecom North America Mobile Inc | ||||
| Telecom One Ltd | 130 City Road, London, EC1V 2NJ | http://www.telecom1.com/ | ||
| Telecom Plus PLC | Dryden House, The Edge Business Centre, Humber Road, London, NW2 6EW | 0871 222 7777 | 0871 222 7554 | http://www.telecomplus.co.uk/ |
| Telecom Solutions International Ltd | 23-27 Endsleigh Road Merstham Surrey, RH1 3LX | 0870 774 6352 | ||
| Telecom Specialist Services Ltd | Unit 1D, McNee Road Orangefield Industrial Estate Glasgow Prestwick Airport Prestwick, Ayrshire KA9 2PH | 0844 573 8488 | ||
| Telecom Strategies Ltd | PO Box 969 Appleton Thorn, Cheshire WA4 9DL | 01925 212765 | ||
| Telecom System Care | http://www.tvct.co.uk/ | |||
| Telecom UK | ||||
| Telecom Warehouse Ltd | Prestige House Cornford Rd, Blackpool FY4 4QQ | 08700 554 155 | http://www.telecom-warehouse.co.uk/ | |
| Telecom Wholesale UK Ltd | ||||
| Telecom 2 Ltd | 37th Floor, One Canada Square, Canary Wharf, London E14 5AA | 020 8114 1000 | http://www.telecom2.net/ | |
| Telecom365 Ltd | Communications House, 26 York Street, London W1U 6PZ | 0845 519 8510 | 0845 519 8511 | http://www.telecom365.co.uk/ |
| TelecomIT Ltd | 36 Warren House Walk Sutton Coldfield, West Midlands B76 1TS | 0870 411 1110 | http://www.Telecomit.co.uk/ | |
| Telecomm Europe Ltd | Studio 29 Abbey Mills Sir James Clark Building Paisley PA1 1TJ | 0141 887 8485 | ||
| Telecomms Direct Ltd | 28-30 Belle Vue Terrace Malvern, Worcs WR14 4PZ | 01684 588 405 | ||
| Telecommuni.com Ltd | The Old Sorting Office Charlton Green Dover Kent CT16 1AA | 01304 244175 | ||
| Telecommunications Managements Ltd | ||||
| Telecoms 2000 Ltd | ||||
| Telecoms Bridgend Ltd | Unit 9d Garth Drive Brackla Ind Est Bridgend CF31 2AQ | 0800 0933652 | ||
| Telecoms Connect Ltd | Unit 11 Agecroft Network Centre Lamplight Way Salford, Manchester M27 8UJ | 0161 351 6766 | ||
| Telecoms Consortium Ltd | ||||
| Telecoms Network Ltd | 1 Raynham Road, Bishops Stortford, Hertfordshire CM23 5PB | 0870 770 2424 | ||
| Telecoms World | ||||
| Telecoms World Direct | ||||
| Teleconnect Service Ltd | 2 Deanhurst Park Gelderd Road Gildersome Leeds LS27 7LG | 0113 217 2030 | ||
| Teledesign | The White House, 1 The Broadway, Old Hatfield, Herts AL9 5BG | 020 7047 0000 | 020 7057 0000 | http://www.teledesign.co.uk/ |
| Telediscount | http://www.telediscount.co.uk/ | |||
| Teleena Netherlands | The "Merwestein" Building, Krijtwal 29, 3432 ZT Nieuwegein, The Netherlands | 078 8559 2285 | http://teleena.com/ | |
| Telefone Rescources (UK) Ltd | Unit F1, RD Park, Stephenson Close Essex Road Hoddesdon EN11 0BW | 01992 464745 | ||
| Telefonic Ltd | 38 Layfield Road, London NW4 3UG | 08008 491550 | ||
| Telefónica Europe PLC | 260 Bath Road, Slough SL1 4DX | 01753 628835 | http://www.telefonica.com/ | |
| Telefónica UK Ltd | 260 Bath Road, Slough SL1 4DX | 01753 628835 | http://www.o2.co.uk/ | |
| Teleglobe International (UK) Ltd | ||||
| Tele-Lynx (UK) Ltd | Unit 15, Hunts Mill, Wallingford, Oxon OX10 0DR | 01491 832619 | 0870 137 6105 | http://www.fireflytelecom.com/ |
| TeleMagic | ||||
| Telemar (UK) Ltd | 5 Tillingbourne Court, Dorking Business Park Station Road Dorking Surrey RH14 1HJ | 01306 883 355 | ||
| Telemark (UK) Ltd | Carrton House 28-29 Western Road, Hove, East Sussex BN3 1AF | 0870 759 3000 | ||
| Telemax Ltd | 1st Floor Federation House 36-38 Rockingham Road Ketting Northampton NN16 8JS | 0870 7561411 | ||
| Telenatter | ||||
| Telephone and Data (Billing) Services Ltd | 22 South Audley Street, London W1K 2NY | 0870 787 0788 | ||
| Telephone Box | ||||
| Telephone Consultants | 5 Rugby Gardens Ovenden, Halifax HX3 5SP | 0800 977 5420 | ||
| Telephone Europe Ltd | Office 5, Vulcan House Business Centre Vulcan Road, Solihull B91 2JY | 0870 300 686 | ||
| Telephone Maintenance Group Plc | Senate House, Saxon Business Park Stoke Prior Bromsgrove Worcs B60 4AD | 01527 881 800 | ||
| Telephone Monitoring Ltd | Network House 197 Kirkham Road, Preston PR4 1XB | 01772 631 333 | ||
| Telephone Network Supplies | Unit 6, Mountview Road, Orpington, Kent BR6 0HW | 01689 601973 | 01689 601973 | http://www.mastersocket.com/ |
| Telephone Number Discount Warehouse | http://www.tdnw.co.uk/ | |||
| Telephone Systems Direct | http://www.telephonesystemsdirect.co.uk/ | |||
| Telephone Tech Ltd | 290 Heysham Road, Morecambe LA3 1PZ | 01524 853 737 | ||
| Telephone Technology Ltd | The Raleigh Suite The Mohan Business Centre Tamworth Road, Long Eaton Nottingham NG10 1BE | 0115 8554929 | ||
| Telephony Management Ltd | ||||
| Telephony Services Ltd | 26 Cheltenham Street, Bath BA2 3EX | 01225 800 810 | http://www.voip.org.uk/ | |
| Teleport Networks | ||||
| Teleproject UK Ltd | Business & Technology Centre Bessemer Drive Stevenage Hertfordshire SG1 2DX | 0844 556 4757 | ||
| Telequip Ltd | Acorn Business Park Northarbour Road Cosham Hants PO6 3TH | 0870 777 0 777 | ||
| Telesave | http://www.telesave.co.uk/ | |||
| TeleSavers | http://www.telesavers.co.uk/ | |||
| Teleshare Networks Ltd | 1830 The Cube 197 Wharfside Street, Birmingham B1 1RN | 0808 129 4989 | ||
| Telesis | http://www.telesiscomms.com/ | |||
| Telesis Communications Ltd | 15 Bishops Grange Rugeley, Staffordshire WS15 3JY | 0800 012 6336 | ||
| Telesoft Technologies | http://www.telesoft-technologies.com/ | |||
| Telestream Communications UK | Woodside Lodge, Cobbetts Hill, Weybridge, Surrey KT13 0UA | |||
| Telestunt | PO Box 12516, 1100 AM Amsterdam, Netherlands | http://www.telestunt.co.uk/ | ||
| TeleSurf | ||||
| Teleswitch IVR | http://www.telswitch.net/ | |||
| Teletop | http://www.teletop.co.uk/ | |||
| Teleware | TeleWare Group PLC TeleWare House York Road Thirsk, North Yorkshire YO7 3BX | 01845 521193 | ||
| TeleWare Telecom Ltd | ||||
| TELEXT Ltd | Unit 17 Centenary Business Centre Hammond Close Attleborough Fields Ind Est Nuneaton, Warwickshire CV11 6RY | 0844 880 5090 | ||
| Telia UK Ltd | http://www.telia.se/ | |||
| Teliasonera International Carrier UK Ltd | ||||
| Telinco UK Ltd | Sirius House, Alderley Road, Chelford, Cheshire SK11 9AP | 0845 666 6633 | 0845 666 6633 | http://www.telinco.net/ |
| Telinet Solutions Ltd | Telinet House, 52 Southwark Bridge Road, London SE1 OAR | |||
| Telkom Celular Services Ltd | BBIC Building Snydale Road, Choworth, Barnsley S72 8RP | 01226 718 193 | ||
| Telnergy Ltd | Templar House 3 The Courtyard Aylesbury Buckinghamshire HP21 7LZ | 08451 806 688 | ||
| Telnet International Ltd | Golf House Horsham Road Pease Pottage West Sussex RH11 9SG | 0870 770 7790 | http://www.telnet-international.com/ | |
| TelNG | 203 Marsh Wall, London E14 9YT | 020 8114 5000 | ||
| Telsave Ltd | ||||
| Telsis Systems Ltd | Barnes Wallis Road, Segensworth, East Fareham, Hampshire PO15 5TT | 01489 885877 | ||
| Telstra Ltd | 2nd Floor, Blue Fin Building, 110 Southwark Street, London SE1 0TA | 020 7965 0000 | 020 7965 8801 | http://www.telstrainternational.co.uk/ |
| Telstream Communications UK Ltd | Unit 8, Mallard House Business Centre, The Street, Little Bealings, Woodbridge IP13 6LT | 0844 874 7475 | 0844 874 7476 | http://www.telstream.co.uk/ |
| Telswitch | ||||
| TelXL Ltd | 2 Chapel Court, Holly Walk, Leamington Spa CV32 4YS | 01926 888284 | ||
| Tesco Broadband | http://www.tesco.com/telecoms/ | |||
| Tesco Internet Phone & Talk Wi-fi | http://www.tesco.com/telecoms/ | |||
| Tesco Mobile | http://www.tesco.com/telecoms/ | |||
| Tesco Stores Ltd | P.O. Box 5879, Forres IV36 2YF | 0800 068 0818 | ||
| Tesco Talk | PO Box 5879, Forres IV36 2YF | 0845 300 7080 | 0845 300 6030 | http://www.tesco.com/tescotalk/ |
| Tesco.net | http://www.tesco.com/telecoms/ | |||
| TeslaOne Ltd | Studio 5, 155 Commercial Street, London E1 6BJ | 020 3519 1881 | 020 3519 1882 | http://www.teslaone.com/ |
| Test2date B.V | ||||
| TET IP Ltd | Laser House 132 Goswell Road, London EC1V 7DY | 020 7553 9951 | ||
| TextMagic Ltd | Salisbury House, Station Road, Cambridge CB1 2LA | 0845 299 4125 | 0845 280 1467 | http://www.textmagic.co.uk/ |
| TFM Networks Ltd | The Coach House 1 Manor Courtyard Aston Sandford Aylesbury, Bucks HP17 8JB | 01844 296530 | ||
| TG Support | ||||
| Thales UK Ltd | Unit 4 Carolina Court Wisconsin Drive Doncaster South Yorkshire DN4 5RA | 0800 232 1566 | ||
| Thames Valley Chamber Telecom | http://www.scottishchamberstelecom.co.uk/ | |||
| The Abacus Business Consultancy (UK) Ltd | 8 Experian Way NG2 Business Park, Nottingham NG21 1EP | 07788 140 285 / 0115 9578 759 | ||
| The Airtime Group | ||||
| The Calls Warehouse Ltd | 23 New Mount Street, Manchester M4 4DE | 0161 212 7373 | ||
| The Carphone Warehouse Ltd | TalkTalk Telecom Ltd 1 Portal Way, London W3 6RS | 0870 990 9685 | ||
| The Cellphone Store Ltd | 6 Fishergate Court Christian Road Preston Lancashire PR1 8QF | 020 8457 2470 | ||
| The Charity Line Community Interest Company | ||||
| The Comms Guys | 310 E East Wing Sterling House Langston Road Loughton, Essex IG10 3TS | 020 3195 2224 | ||
| The Communications Company UK | http://www.comsco.com/ | |||
| The Complete Solution Company Ltd | Alexander House Moss Road Stretford Manchester M32 0WH | 08443 442 441 | ||
| The Consulting Group Ltd | Suite 28, lymedale bus Centre Hooters Hall Road Newcastle under Lyme Staffs ST5 9QF | 01782 562782 | ||
| The Dental Imaging Company Ltd | 27 Beaconsfield Road Portslade, East Sussex BN41 1XA | 0845 269 2690 | ||
| The Excell Group | http://www.excellgroup.com/ | |||
| The Link Stores Ltd | The Link Stores Ltd Wellington Street, Slough SL1 1YP | 0113 272 2000 | ||
| The Mobile Point Ltd | 189-197 Wincolmlee, Hull East Yorkshire HU2 0PA | 01482 420170 | ||
| The National Business Network Ltd | Buidling 7, Rainbow Business Village, Trout Road, West Drayton UB7 7XT | 0870 870 6650 | http://tnbn.co.uk/ | |
| The Network Union | 145-157 St John Street, London EC1V 4PY | 0845 3888 760 | ||
| The Number Centre | http://www.thenumbercentre.com/ | |||
| The Number UK | ||||
| The Old Tack Room | Home Farm House School Lane, Normanton Le Heath LE67 2TH | 0845 330 1445 | ||
| The One Point Ltd | 189-197 Wincolmlee, Hull HU2 0PA | 01482 420150 | ||
| The Orb Group Ltd | Orb House Cuckoo Wharf 435 Lichfield Road Birmingham B6 7SS | 0845 4080088 | ||
| The Phone Company Ltd | TPC House, 954 Yeovil Road, Slough, SL1 4NH | |||
| The Phone Co-op | 5 The Millhouse, Elmsfield Business Park Worcester Road Chipping Norton Oxon OX7 5XL | 0845 458 9000 | http://www.thephone.coop/ | |
| The Phone Guys Ltd | Garrick House Glinton, Peterborough PE6 7JP | 0808 168 1680 | ||
| The Phone Works | Holy Oak Farm Upson Snodsbury, Worcester WR7 4NH | 01905 381188 | ||
| The SPA Group | http://www.thespagroup.co.uk/ | |||
| The Team Group of Companies UK Ltd | 2 Hyde House Victoria Avenue, Harrogate, North Yorkshire HG1 1DX | 0845 126 1621 | ||
| The Technologies Group Ltd | Equis House 4 Eastern Way Bury St Edmunds Suffolk IP32 7AB | 01284 778737 | ||
| The Telecoms Audit Bureau Ltd | Westwood House 78 Loughborough Road Quorn Leicestershire LE12 8DX | 0871 426 6976 | http://www.tariffaudit.com/ | |
| The Telecoms Group Ltd | ||||
| The Telephone Network | 65 Pembroke Road, Bristol BS8 3DW | ?? | http://www.tphone.com/ | |
| The UK Grid Network | ||||
| The Very Good Telephone Company Ltd | 22 Rainow Road Macclesfield, Cheshire SK10 2PF | 01625 614458 | ||
| The Voice(GB) Ltd | Branwell House Park Lane Keighly W Yorks BD21 4QX | 0870 777 2407 | ||
| The Weston Group | http://www.thewestongroup.co.uk/ | |||
| The Word Direct Ltd | 1 Denvale Trade Park Gladames Place, Cardiff CF24 5AA | 02920 445 747 | ||
| TheCloud Ltd | The Granary Cams Hall Estate, Fareham PO16 8UT | 01329 559900 | ||
| theWord | http://www.theword.co.uk/ | |||
| Think Telecom Solutions Ltd | 23 New Mount Street, Manchester M4 4DE | 0800 950 0800 | http://www.08numbers.com/ | |
| Think Telecom Solutions (Offline GSM Ltd) | 47 Priory Street, Lewes BN7 1HJ | 0870 758 4465 | http://www.thinktelecomsolutions.com/ | |
| Thistle Networks Ltd | 27 East Stewart Street, Coatbridge ML5 3RJ | 01236 607624 | ||
| Thompsons Alarms | Unit 12 Portland Ind. Est. Stevenston Ayrshire KA20 3NN | 01294 466060 | ||
| Thomson Communications UK Ltd | 56 Captain Street, Greenock Renfrewshire PA15 4LQ | 01475 788200 | ||
| Thornford Communications Ltd | 2E Sunrise Business Park, Blandford, Dorset DT11 8ST | 0333 577 9790 | http://www.thornfordcomms.co.uk/ | |
| Thorntons Communications Ltd | Unit 12 Weslink Belbins Business Park, Romsey SO51 7JF | 08451 702702 | ||
| Three | http://www.three.co.uk/ | |||
| Threecom | 23c Parkstone Road Poole, Dorset BH15 2NN | 08707 501612 | ||
| Threesixty Telecom Ltd | 1010 Cambourne Business Park Cambourne, Cambridge CB3 6DP | 08000 744 360 | ||
| Thus PLC | 1-2 Berkeley Square, 99 Berkeley Street, Glasgow G3 7HR | 0800 027 0000 | http://www.let-it-be-thus.com/ | |
| Tiger Communications PLC | 77-79 Christchurch Road, Ringwood, Hants BH24 1DH | 01425 891000 | 01425 461484 | http://www.tigercomms.com/ |
| Time Communication Solutions Ltd | Units 1-3 Newmarket Mews Castle Gate, Wakefield WF3 4AL | 0113 205 9640 | ||
| Timepiece Lda | Marina Club 3, Funchal, Madeira, Portugal | +351 29112 06000 | +351 29112 060099 | http://www.uvtc.com/uk/ |
| Timico | http://www.timico.co.uk/ | |||
| Tiscali UK | P.O. Box 7206, Milton Keynes MK14 6KG | 0870 741 5000 | ||
| Tismi BV | Postbus 19092, 3501DB Utrecht, Netherlands | +31.20.7012345 | http://www.tismi.com/ | |
| Titan Technology Ltd | ||||
| Titan Telecom Ltd | Po Box 257, Manchester M22 4ZF | 0844 257 0844 | http://www.titantelecom.uk.com/ | |
| Titanium | ||||
| TM Solutions Ltd | http://www.tmsols.co.uk/ | |||
| TMcom Ltd | Farthing Cottage Wattas Green Chearsley Bucks HP18 0DD | 0844 993 0882 | ||
| TMG Network Services Ltd | 98-100 Ock Street, Abingdon, Oxford OX14 5DH | 0870 066 0801 | ||
| T-Mobile Everything Everywhere | Hatfield Business Park, Hatfield, Herts AL10 9BW | 0845 412 5000 | http://www.t-mobile.co.uk/ | |
| TNBN | http://tnbn.co.uk/ | |||
| Today's Northern Ireland LTD | ||||
| Together Telecoms Ltd | 23 Baseline Whitchurch Road, London W11 4AT | 020 7193 2134 | ||
| Topland Communications Ltd | Unit 4a Top Land Country Business Park Cragg Road Mytholmroyd West Yorkshire HX7 5RW | 01422 888500 | ||
| Topland TSL | http://www.topland.org/ | |||
| Topup2Talk | http://www.talktalk.co.uk/ | |||
| TopUpDial | http://www.topupdial.co.uk/ | |||
| TopUpNow | http://www.topupnow.co.uk/ | |||
| Torch Communications Ltd | Melbourne House, Brandy Carr Road, Wakefield, WF2 0UG | 01924 290000 | http://www.torch.co.uk/ | |
| Torch Communications | http://www.itvet.co.uk/ | |||
| Torch Internet | http://www.itvet.co.uk/ | |||
| Total Comms UK Ltd | Office 10, 117c Liverpool Road 117c Liverpool Road Cadishead Manchester M44 5HG | 0808 165 1234 | ||
| Total Communications (Northern) Ltd | ||||
| Total Office Intergration Ltd | Sephton House North Mersey Business Centre Woodward Road Liverpool L33 7UY | 0844 561 1128 | ||
| Total Telecom Ltd | Suit D, BDC Stafford Park 4, Telford Shropshire TF3 3BA | 01952 616601 | ||
| Total Telecommunications Ltd | Telecoms House 296 High Street Cheltenham Glos GL50 3HQ | 01242 246702 | ||
| Total Telecommunications (TTL) | http://www.ttlonline.com/ | |||
| Total Telecoms North East Ltd | Ground Floor Unit 2 Haswell Court Quay West Business Village Sunderland | 0191 388 0631 | ||
| Total Web Solutions Ltd | Total Web Solutions Limited 12 Riverview, The Embankment Business Park Heaton Mersey Stockport, Cheshire SK4 3GN | 0844 856 0681 | http://www.totalwebsolutions.com/ | |
| Totem Communications Ltd | Hawk House, Hawksworth Road, Central Park, Telford TF2 9TU | http://www.totemcomms.co.uk/ | ||
| Touch Europe Ltd | Benitma House 168-172 Old Street, London EC1V 9BP | 0800 083 9894 | ||
| Touch Intelligence Ltd | 4 Summerhill Road Dartford, Kent DA1 2LP | 01322 278 855 | ||
| E7even UK Ltd | 6th Floor 8 Exchange Quay Salford Manchester M5 3EJ | 0161 932 1176 | http://www.touchtele.com/ | |
| Touchbase Conexion | 137-144 High Holborn, LONDON WC1V 6PL | 0207 8787 000 | ||
| Touchbase UC Ltd | 9a Devonshire Square, London EC2M 4YN | 020 7878 7000 | ||
| Touchlight Systems Ltd | 2A Willoughby Street, Beeston Nottingham NG9 2LT | 0115 825 5240 | ||
| Towers Telecom | 5 Towers Court Duckworth Street Blackburn Lancashire BB2 2JQ | 01254 675079 | ||
| Town & Country Communications LLP | 346/348 Charminster Road Bournemouth, Dorset BH8 9RX | 01202 514 444 | ||
| Town & Country Telecommunications Ltd | 104 Yorktown Road Sanhurst, Berkshire GU47 9BH | 01252 860888 | ||
| Townley Communications plc | The Pavilions Chester Business Park, Chester CH4 9QH | 01244 659 659 | ||
| TRA (UK) Ltd | Unit 7, Liberty Centre Mount Pleasant, Wembley, Middx HA0 1TX | 020 8537 0000 | 0845 138 2001 | http://www.trauk.com/ |
| Transaction Network Services (UK) | Marketing Department Sheffield Business Park Europa link Sheffield S9 1XU | 0114 292 0200 | ||
| Transcat Telecom Ltd | Station Court Station Road Great Shelford Cambridge CB22 5NE | 01223 551 000 | ||
| Transcend Communications | ||||
| Transglobal Europe Ltd | ||||
| Transglobal Telecom | http://www.transglobal-telecom.com/ | |||
| Transglobal Telecommunications | 65 College Road, Maidstone Kent ME15 6SX | 01622 774 900 | ||
| Transglobal UK Ltd | The Communications Centre 65 College Road Maidstone KENT ME15 6SX | 01622 774 900 | ||
| Triangle Telecom Ltd | 6 Hill Road, Clevedon BS21 7NE | 01275 871 122 | http://www.triangletelecom.co.uk/ | |
| Trinity Maxwell Ltd | Monmouth House 30-40 Artillery Lane,, London E1 7LS | 020 3137 8450 | ||
| Trinity Telecom | 105 Garstang Road, Preston PR1 1LD | 0870 751 4200 | ||
| Tripudio Ltd | Shawfield House Shawfield Lane Ash Surrey GU12 6QZ | 0845 0852947 | ||
| Trojan Communications Ltd | Roots House 2-4 Bilton Industrial Estate Humber Avenue Coventry CV3 1JL | 02476 651 080 | ||
| Trophy Telecom Ltd | 4 Great Courtlands Langton Green Tunbridge Wells Kent TN3 0AH | 0844 251 1600 | ||
| True Communications Ltd | http://www.truecomm.co.uk/ | |||
| True Telecom Ltd | ||||
| Trueroots | http://www.trueroots.co.uk/ | |||
| Truphone Ltd | 4 Royal Mint Court, London EC3N 4HJ | 020 3002 6565 | 020 7961 0880 | http://www.truphone.com/ |
| Trustel (NI) Ltd | ||||
| Trustel (UK) Ltd | ||||
| TSC Associates Ltd | 11 Browns Coppice Avenue Solihull, West Midlands B91 1PL | 0121 703 3502 | ||
| TSI Voice & Data LLP | 201 Lee Valley Technopark Ashley Road, London N17 9LN | 0870 737 3773 | ||
| TSL | http://www.topland.org/ | |||
| Tspeak (UK) Ltd | High Corn Mill Chapel Hill, Skipton BD23 7NL | 0870 126 5333 | ||
| Tsunami Computers Ltd | Unit 6 Branston House West Avenue, Wigston LE18 2FB | 0870 766 2627 | ||
| T-Systems Ltd | ||||
| TTC Communications Ltd | Linton House 164-180 Union Street, London SE1 0LH | 020 7771 7800 | ||
| TTG (Southern) Ltd | Broadway House 21 Broadway, Maidenhead SL6 1NU | 0870 067 1650 | ||
| TTG (UK) Ltd | Riverside Harley House Mill Fold Ripponden HX6 4DJ | 01422 410 520 | ||
| TTG UK | http://www.TTG.UK.com/ | |||
| TTNC The Telephone Number Company | http://www.ttnc.co.uk/ | |||
| TTTelecom BV | Hoek 47, 4271 BH Dussen, Netherlands | +31 88 123 88 88 | +31 88 123 88 89 | http://www.tttelecom.nl/ |
| Tulip Communications Ltd | Cardiff House Priority Business Park Barry Vale Of Glamorgan CF63 2AW | 0844 556 5526 | ||
| Turnkey I.T Solutions | 5 Ferry Lane Lympsham, Somerset BS24 0BT | 0844 811 2380 | ||
| Turnkey Telecom Solutions Ltd | 1 George Williams Way Colchester, Essex CO1 2JS | 01206 760505 | ||
| Turquoise Mobile Ltd | Southwinds Rucklers Lane Kings Langley Herts WD4 9ND | 01442 231 831 | ||
| Tuxtel | ||||
| Twang.net Ltd | Furlong House Hambridge Road Newbury Berkshire RG14 5UT | 01635 239 000 | ||
| Twin Technology Ltd | Victoria House 49 Clarendon Road, Watford WD17 1HP | 01923 228820 | ||
| Twisted Fish Ltd | 63 Kew Green, Richmond London TW9 3AH | 020 8973 2272 | ||
| TwistedPair Ltd | Collyers Stable Ridge Common Lane, Petersfield GU32 1AQ | 0870 163 6999 | ||
| TWL Europe | Dean Park House 8-10 Dean Park Crescent, Bournemouth BH1 1HP | 020 3002 2288 | ||
| TWL Inbound | ||||
| TWL Voice 7 Data Ltd | Unit 4 Ty Verlon Ind Est Cardiff Road, Barry CF63 2BE | 01446 729280 | ||
| TWS Global Ltd | ||||
| TxRx Communications | http://www.txrxcomms.co.uk/ | |||
| TXU Europe | ||||
| TXU UK Ltd | ||||
| Tycoon Telecom Ltd | 42 Molesey Road Molesey, Surrey KT8 2HF | 020 8123 9913 | ||
| UA International Ltd | ||||
| Ucall Ltd | 10 Blacksmiths Lane Hockley heath Solihull West Midlands B94 6QP | 0121 603 8258 | ||
| UCB Connect Ltd | Moles Hall Nursery Drive, Braintree, Essex CM7 9RY | 0870 160 9001 | ||
| UK Broadband Ltd | 3rd Floor, International House, 7 High Street, Ealing, London W5 5DB | 020 3006 7801 | 020 3006 7805 | http://www.ukbroadband.com/ |
| UK Centralised Telecoms Ltd | 145-157 St John Street, London EC1V 4PY | 0800 021 45 45 | ||
| UK Communications Ltd | ||||
| UK Corporate Telecom Ltd | Qwerty House 9 Stalmine Avenue, Heald Green SK8 3JG | 0845 124 9001 | ||
| UK Data IT Ltd | 6th Floor, Elgar House Shrub Hill Road Worcester, WR4 9EE | 0870 066 0771 | ||
| UK Digital Networks Ltd | ||||
| UK Energy Solutions | Studio 70, Courthill House 60 Water Lane, Wilmslow SK9 5AJ | 01625 470732 | ||
| UK Freephone Ltd | P.O. Box 800, South Ockendon RM15 4WH | 0800 074 7070 | ||
| UK Gas Technologies Ltd | Aztec House Perrywood Business Park, Honeycrock Lane Salfords Redhill, Surrey RH1 5DZ | 01737 378000 | ||
| UK IP Services Ltd | Unit 2 Riverside House Mill Lane Newbury RG14 5QS | 0845 450 9030 | ||
| UK IT Networks | 23 Bridgeman Terrace Wigan, Lancashire WN1 1SX | 0844 310 0031 | ||
| UK Online Agrisales Ltd | 39 Ballynahatty Road Omagh, Co Tyrone BT78 1PW | 028 8225 1596 | ||
| UK Talk Telecoms Ltd | 13 Timplings Row Hemel Hempstead, Hertfordshire HP1 3ET | 07824 998843 | ||
| UK Tech Services Ltd | 46 Seaton Road Hemel Hempstead, Herts HP3 9HT | 01442 500 024 | ||
| Uk Telco (Gb) | http://WWW.UK-TELCO.CO.UK/ | |||
| Telecom Bill Ltd | Media House Lansbury Estate Knaphill Woking GU21 2EP | 01483 485070 | http://www.uktelecom.uk.net/ | |
| UK Telecom Solutions Ltd | 26 York Street Mayfair London W1V 6PZ | 020 603 3243 | ||
| UK Voice Ltd | European Communication Centre Flag Business Centre Vicarage Farm Road Peterborough PE1 5TX | 0870 8922 111 | ||
| UK Wholesale Direct | 4th Floor Meadow Mill, Water Street, Stockport SK1 2BU | 0161 850 1288 | 0161 850 1289 | http://www.uk-wholesale.co.uk/ |
| UK_Telco (GB) Ltd | ||||
| UK2Telecom Ltd | ||||
| UKN Group Ltd | 300 Cedarwood Chineham Business Park Basingstoke Hampshire RG24 8WD | +44 125 684 6810 | ||
| UKOnline | http://www.ukonline.co.uk/ | |||
| UKS Ltd | Birmingham Road Studley, Warwickshire B80 7BG | 0121 314 5212 | ||
| Ultimate Broadband | http://www.highnet.org.uk/ | |||
| Ultimate Media Ltd | Gunpowder House 66 Great Suffolk Street, London SE1 0BL | 0800 437 0707 | ||
| Ultimate Networks Ltd | Rudgate Thorpe Arch Wetherby West Yorkshire LS23 7RR | 0870 112 2221 | ||
| Ultimate Telecom Ltd | 1st Floor 2 Woodberry Grove North Finchley London N12 0DR | 07714 491631 | ||
| Un1fy Ltd | 27 Church Meadows Bocking, Essex CM7 5SL | 01376 554 774 | ||
| UniCall Telecommunications Ltd | 12 Trinity Crescent, London SW17 7AE | 0800 197 1700 | ||
| Unicom | Universal House, Longley Lane, Manchester M22 4SY | 0161 946 4440 | 0161 946 4445 | http://www.switchingon.com/ |
| Unicorn Telecommunications Ltd | ||||
| Unifi Communications Ltd | 68 Stanley Road, Teddington Middlesex TW11 8TX | 0208 943 9333 | ||
| UnifiData Ltd | Salisbury House 81 High Street Potters Bar Herts EN6 5AS | 01707 291250 | ||
| Unified Business Communications Ltd | Design Works William Street Felling Gateshead NE10 0JP | 0191 423 6261 | ||
| Unified Business Systems | Huntingdon House 278-290 Huntingdon Street, Nottingham NG1 3LY | 0115 9419500 | ||
| Unified Communications (South West) Ltd | Appt 2 85 Molesworth Road, Plymouth PL3 4EL | 07860 549164 | ||
| Unified Mobile Centric Solutions | Unit 9, Franklin Business Park Blaydon Haugh, Newcastle Upon Tyne NE12 9RQ | 0191 5800 525 | ||
| Unified World Communications Ltd | Challenge Way Greenbank Tech park, Blackburn BB1 5QB | 0843 216 2323 | ||
| Unify Business Solutions Ltd | Unify Business Solutions Ltd Ambassador House 5 Midland Way Barlborough, Chesterfield S43 4XA | 0845 871 77 88 | ||
| Unify Network Solutions Ltd | 120 Sheffield Road Dronfield, Sheffield S18 2JA | 0845 871 7788 | ||
| UniOne Ltd | 7 Tottenham Mews, London W1T 4AB | 020 7580 1199 | ||
| Uniquecomms Ltd | Seabright Business Centre 80 Goulton Street Hull East Yorkshire HU3 4AT | 01482 900600 | ||
| Unite Communications Ltd | 33 Bellingham Drive Benton, Newcastle Upon Tyne NE12 9SZ | 0191 270 5125 / 0845 388 3370 | ||
| United Connect Ltd | Surrey House, 34 Eden Street, Kingston-upon-Thames, Surrey KT1 1ER | 020 8288 0140 | http://www.unitedconnect.com/ | |
| United Mobile Services Ltd | United Mobile Services Limited 45-47 Station Road Gerrards Cross Buckinghamshire SL9 8ES | 01754 65504 | ||
| United Network Solutions Ltd | Tele House Borehamwood Enterprise Park Theobald Street Borehamwood Hertfordshire WD6 4RJ | 0870 900 2777 | ||
| United Utilities Customer Sales Ltd | http://www.unitedutilities.com/ | |||
| Uni-tel Business Communications Ltd | Unit 3, Centurion Court Centurion Way Blackburn BB1 1NB | 01254 666065 | ||
| Unitel Communications Ltd | Weald House, 88 Main Road, Sundridge, Sevenoaks, Kent TN14 6ER | 01959 568300 | 01959 568301 | http://www.unitel.co.uk/ |
| Unitel Network Services Ltd | http://www.unitelnetworks.co.uk/ | |||
| Unity Broadband | Customer Services Baspoint Business Centre Metcalf Way Crawley RH11 7XX | 01293 763 022 | ||
| Unitycomm Ltd | 1 Fishpond Way Loughbrough Leics LE11 2SF | 0845 652 0670 | http://www.unitycomm.co.uk/ | |
| UniverCell (UK) | 137 Brent Street, Hendon London NW4 2HG | 0870 950 6005 | ||
| Universal Group Networks Ltd | The Old Coach House 67b High Street Saffron Walden Essex CB10 1AA | 0870 160 3333 | ||
| Universal Networks Maintenance Ltd | Fernhills Business Centre Todd Street, Bury BL9 5BJ | 0844 858 0700 | ||
| Universal Office Automation (Networks) Ltd | 18 Hartham Lane Hertford, Herts SG14 1QN | 01992 821 212 | ||
| Universal Savings Ltd | Provincial House 3 High Street, Ryde PO33 2PN | 08450 50 48 10 | http://www.universalsavings.biz/ | |
| Universal Telecom | A Product of Timepiece, Lda City Point 1 Ropemaker Street London EC2Y 9HT | 0800 279 9809 | http://www.uvtc.com/uk/ | |
| Universal Telecoms Ltd | Unit 11, The Glade Business Centre Eastern Avenue, Motherwell Way West Thurrock Essex RM20 3FH | 01708 899 442 | ||
| Universal Utilities | Longley House Longley Lane, Manchester M22 4SY | 0161 946 4440 | ||
| Uniworld Bureau Services | Waterside House Haslar Marine Technology Park, Gosport PO12 2AU | 0845 458 4510 | ||
| Uno Telecom Ltd | 375 Meanwood Road, Leeds LS7 2LL | 0113 2441 442 | ||
| Unofon Telecom Ltd | Sir Walter Raleigh House 48-50 Esplanade St Helier Jersey JE3 3QB | 0800 652 4894 | ||
| UPA Telecom | ||||
| Updata Infrastructure UK Ltd | Premier House 1-7 Warren Road Reigate Surrey RH2 0BE | 01737 224 422 | ||
| U-Save Information Communication | http://www.usic.co.uk/ | |||
| Usave Telecom | Goodyear Business Park New Street, Mawdesley L40 2QP | 01704 822522 | ||
| U-Save Telecom | http://www.usic.co.uk/ | |||
| U-Select Services Ltd | Jesson House Tower Street, Coventry CV1 1JN | 0845 330 2553 | ||
| USIC | http://www.usic.co.uk/ | |||
| USP (GB) Ltd | 2 The Cobalt Centre Siskin Parkway East, Coventry CV3 4PE | 02476 620 020 | ||
| UT Networks Ltd | Barham Court Teston Maidstone KENT ME18 5BZ | 0845 408 1002 | ||
| Utilitel Ltd | t/a Yourtel Quays Reach Business Quarter Carolina Way Salford, Manchester M50 2ZY | 0845 225 6006 | ||
| Utilities Network Ltd | 26-27 Downing Street Farnham, Surrey GU9 7PD | 0870 2000 121 | ||
| Utilities UK Ltd | Hartcran House Gibbs Couch Carpenders Park Hertfordshire WD19 5EZ | 0870 050 0601 | ||
| Utilitrack Telecommunications Ltd | 8 Denton Road Eastbourne, Sussex BN20 7SU | 01323 722 765 | ||
| Utility Auditing Ltd | ||||
| Utility Forum | 148 Victoria Road West Cleveleys, Lancashire FY5 3NE | 01253 851818 | ||
| Utility Options Ltd | Gateway House 78 Northgate Street, Chester CH1 2HR | 0800 195 0123 | ||
| Utility Renewals Ltd | Suite 6 Bridgewater House Surrey Road Nelson BB9 7TZ | 08444 120036 | ||
| Utility Solutions (UK) Ltd | 69 Primrose Hill Kings Langley, Herts WD4 8HX | 0871 4900 105 | ||
| UTV Internet | Ormeau Road, Belfast, Co. Antrim BT7 1EB | 0845 247 0000 | ||
| V & J Harbour Ltd | 9 Fishers Industrial Estate Wiggenhall Road Watford Herts WD18 0FN | 01923 233277 | ||
| V Networks Ltd | Amadeus House Floral Street Covent Garden London WC2E 9DP | 08000 828 900 | http://www.vnetworks.com/ | |
| V10 Media Ltd | 44 Parkhouse Court Hatfield, Hertfordshire AL10 9QZ | 01707 272 422 | ||
| V12 Telecom Ltd | 1 Stanton Court South Marston Park, Swindon CN3 4YH | 0870 190 0077 | http://www.v12telecom.com/ | |
| V4 Ltd | Altec House 27 Aintree Road Perivale Middlesex UB6 7LA | 0845 034 3910 | ||
| V4B | http://voip4business.biz/ | |||
| Vaioni Group Ltd | 14 Leslie Hough Way, Manchester M6 6AJ | 0870 160 0650 | ||
| Vale DS Communications Ltd | 333 Connaught Road Brookwood Woking Surrey GU24 0AD | 020 3388 8888 | ||
| Valley Enterprises Ltd | Cloverfield Horsebridge Road Kings Somborne Hampshire SO20 6PT | 0845 0091810 | ||
| Value Telecom | ||||
| Vanco UK Ltd | John Busch House 277 London Road Isleworth Middlesex TW7 5AX | 0208 636 1700 | ||
| Vandercom Ltd | Unit C Petherton House 27-29 Petherton Road London N5 2QZ | 020 3302 8189 | http://www.vandercom.net/ | |
| Vandercom Voice & Data Solutions Ltd | 204 Ontario Tower Fairmount Avenue, London E14 9JA | 08444 128 630 | ||
| Vangent Ltd | Vangent Limited Cottons Centre Cottons Lane London SE1 2QG | 020 7939 3505 | ||
| Vanishing Point Ltd | 110 Gloucester Avenue, London NW1 8HX | 020 7722 6878 | 020 7483 4541 | http://www.mymondo.co.uk/ |
| Vantage Communications Ltd | The Stable's 74 Harestone Hill Caterham Surrey CR3 6DH | 0845 375 1573 | http://www.vantagecomms.co.uk/ | |
| Vantagefone | http://www.vantagefone.com/ | |||
| Varidion Ltd | 9 The Axis Centre Cleeve Road Leatherhead Surrey KT22 7RD | 01372 233 333 | ||
| VC World | ||||
| Vebra Solutions | 950 Capability Green Luton, Bedfordshire LU1 3LU | 01582 465 328 | ||
| Vectone Ltd | 58 Marsh Wall, London E14 9TP | 020 7170 0400 | 020 7170 0435 | http://www.vectone.com/ |
| Vellcom | http://www.vellcom.co.uk/ | |||
| Velofone Ltd | Evolve Telecommunications Ltd Gibraltar House 539-541 London Road, Westcliff-on-sea, Essex SS0 9LJ | 0870 333 2590 | ||
| VEN Systems Ltd | 30 Willow Street, London EC2A 4BH | 0845 45 05 836 | ||
| Venture Telecom Ltd | Barham Court Teston Maidstone KENT ME18 5BZ | 0845 241 0255 | ||
| Vepco Ltd | Hob Hall Holme Chapel Cliviger Lancashire BB10 4SU | 0845 864 5005 | ||
| VePhone | Hogan House, 20 High Street, Aldridge, West Midlands WS9 8LZ | 01922 453394 | 01922 459994 | http://www.vephone.com/ |
| Veraco Ltd | 5th Floor Dominions House Queen Street, Cardiff CF10 2AR | 0844 801 2001 | ||
| Verdi Communications Ltd | Barking House Farndon Road Market Harborough Leics LE16 9NP | 01858 288 055 | ||
| VERITALK | ||||
| Verizon UK Ltd | Reading International Business Park, Basingstoke Road, Reading RG2 6DA | 0118 905 5000 | 0118 984 2948 | http://www.verizonbusiness.com/uk/ |
| Versacom Solutions Ltd | Unit 2 Charnwood House Marsh Road Ashton Bristol BS3 2NA | 0844 824 3345 | ||
| Vertical Systems | 14 Hemmells Laindon Basildon Essex SS15 6ED | 07703 502053 | ||
| Vesuvius Communication Technologies Ltd | Parkfield House Park Street, Stafford ST17 4AL | 08708 900 150 | ||
| Vialtus Solutions Ltd | 5 Roundwood Avenue, Stockley Park, Uxbridge UB11 1FF | 0845 366 0845 | 0845 079 1030 | http://www.vialtus.com/ |
| VIASPEC Ltd | 145-157 St John Street, London EC1V 4PW | 0844 884 2375 | ||
| Viastak Ltd | Viastak Limited 33 St James Square London, London SW1Y 4JS | 020 79577004 | ||
| Viatel | http://www.viatel.com/ | |||
| Via-Vox | ||||
| Vibe Active Communications Ltd | http://www.vibeactive.com/ | |||
| Vibe Communications | http://www.vibecoms.co.uk/ | |||
| Vibe Communications UK Ltd | Langtye Business Centre, Langye Lane, Ripe, East Sussex BN8 6AY | 01273 652001 | http://www.vibecoms.co.uk/ | |
| Victor Connect | ||||
| Vineside Ltd | Milngavie Enterprise Centre Ellangowan Court, Glasgow G62 8PH | 0141 943 1943 | ||
| Virgin Business Solutions Ltd | 6 Half Moon Street, Mayfair London W1J 7BA | 0845 855 0895 | ||
| Virgin Media Ltd | Box 333, Matrix Court, Swansea SA7 9BB | 0845 454 1111 | http://www.virginmedia.com/ | |
| Virgin Media Business Ltd | Media House, Bartley Wood Business Park, Bartley Way, Hook RG27 9UP | 0800 953 0180 | http://www.virginmediabusiness.co.uk/ | |
| Virgin Media Ltd | Box 333, Matrix Court, Swansea SA7 9BB | 0845 454 1111 | http://www.virginmedia.com/ | |
| Virgin Media Ltd | Box 333, Matrix Court, Swansea SA7 9BB | 0845 454 1111 | http://www.virginmedia.com/ | |
| Virgin Media Business Ltd | Media House, Bartley Wood Business Park, Bartley Way, Hook RG27 9UP | 0800 953 0180 | http://www.virginmediabusiness.co.uk/ | |
| Virgin Media Talk Plans | http://www.virginmedia.com/ | |||
| Virgin Media Wholesale | Communications House, Bartley Wood Business Park, Bartley Way, Hook RG27 9UP | 0800 953 0180 | http://www.virginmediabusiness.co.uk/ | |
| Virgin Mobile Telecoms Ltd | PO Box 2692, Trowbridge, BA14 0WX | 0845 650 4500 | http://www.virginmobile.com/ | |
| Virgin Mobile Telecoms Ltd | ||||
| Virocom Ltd | ||||
| Virtual Carrier Ltd | ||||
| Virtual Comms Ltd | 4 Lawford House Lawford Close Nechells Birmingham B7 4HJ | 0845 676 9888 | ||
| Virtual Communications Ltd | 33 Minden Place Hemswell Cliff, Gainsborough DN21 5XN | 01427 667275 | ||
| Virtual IT Ltd | 18C Pindock Mews, London W9 2PY | 020 7286 9500 | ||
| Virtual Logistics Ltd | ||||
| Virtual Private Networks Ltd | Network House 1 The Close Hillingdon Uxbridge, Middlesex UB10 0BP | 08709 307780 | ||
| Virtual Telecom Ltd | 95 Manchester Road, Rochdale, Lancashire OL11 4JG | 0870 906 0066 | ||
| Virtual Universe | ||||
| Virtual1 Ltd | Royal London House 22-25 Finsbury Square, London EC2A 1DX | 0844 884 0800 | ||
| Virtualtele.com Ltd | The Old Chapel/Oaken Clough, Ashton-under-Lyne OL7 9NX | 0844 544 4850 | http://www.virtualtele.com/ | |
| Vision Corporate Services Ltd | Suite 3, Winwood Court Norton Road Stourbridge West Midlands DY8 2AE | 0870 803 3201 | ||
| Vision Telecom and Data Ltd | Suite 7, 1st Floor Office Village Broxbourne Business Centre Cheshunt Herts EN8 0NP | 0845 272 5902 | ||
| Visology Ltd | 7 Saxifrage Drive, Stone ST15 6XY | 01785 286 553 | ||
| Vispa Internet Ltd | The Courtyard 160a Moss Lane Altrincham Cheshire WA15 8AU | 0161 9268416 | ||
| Vital Contact Ltd - | Unit 2, Trinity House 1 Trinity Street, Colchester Essex CO1 1JN | 01206 596001 | ||
| Vital International Group Ltd | Matrix 11 900 Coronation Road Park Royal London NW10 7PH | 0870 005 6440 | ||
| Vital Phone | 120 Moorgate, London EC2M 6SS | 0870 121 1190 | ||
| Vital Telephone Ltd | Suite 601, Gaisborough House, 33 Throgmorton Street, London EC2N 2BR | 020 7675 8888 | 020 7397 3429 | http://www.vital-tel.co.uk/ |
| Vitality Consulting Services Ltd | St John's Innovation Centre, Cambridge CB4 0WS | 01223 911 903 | ||
| Vitality Consulting Services Ltd | 1010 Cambourne Business Park, Cambridge CB23 6DP | 01223 597 848 | ||
| Vital-Link Communications Ltd | 82A Mountgrove Road, London N5 2LT | 020 7704 2591 | ||
| Vitrx | Park House Station Road Loudwater Bucks HP10 9UN | 0800 849 0849 | ||
| Viva Telecom | ||||
| Vivaciti | 319 Sutton Road Southend on Sea, Essex SS2 5PF | 01702 410043 | ||
| Vivid (UK) Ltd | Suite 2272, Office 6 Slington House Rankine Road Basingstoke RG24 8PH | 0844 412 0898 | ||
| VividSky Ltd | Park Place 12 Lawn Lane, London SW8 1UD | 020 7091 2950 | ||
| Vmalayalee | http://www.vmalayalee.com/ | |||
| Volcalis Telecom Dienste GmbH | Neuhoffstrasse 8, 6340 Baaz, Switzerland | 00 31 226 340 584 | ||
| Vodacom Ltd | Suites 7 & 8 59 High Street Sittingbourne Kent ME10 4AW | 08456 528728 | ||
| Vodafone Ltd | Vodafone House, The Connection, Newbury, Berks RG14 2FN | 01635 33251 | http://www.vodafone.co.uk/ | |
| Vodafone Corporate Ltd | ||||
| Vodanet Ltd | 29 Avon Road Hale Altrincham Cheshire WA15 0LB | 0161 928 0000 | ||
| VODARE | ||||
| Vodat International Ltd | Unit A9 Pearmill Estate Stockport Road West Bredbury Stockport SK6 2BP | 0161 406 1820 | ||
| VOICE | 44 Largy Road Crumlin, Co Antrim BT29 4RN | 02984 420 500 | ||
| Voice 2 Voice Ltd | Ground Floor, Victory Point Nelson Court Staffordshire Technology Park Stafford ST18 0WQ | 0845 241 8399 | ||
| Voice 4 Data Ltd | Communications House 95 Boston Road, Leicester LE4 1AW | 0870 165 0005 | ||
| Voice Connect (SW) Ltd | The Manse Fore Street, Othery, Somerset TA2 0QH | 0845 120 4445 | ||
| Voice Dat Ltd | Unit 6 Fort Dunlop Fort Parkway Birmingham B24 9FD | 0121 748 8484 | ||
| Voice Data Network Ltd | 2-8 Park Road Lytham St. Annes, Lancashire FY8 1QX | 01253 783 990 | ||
| Voice Data Works Ltd | 5 Jupiter House Calleva Park Aldermaston Reading RG7 8NN | 0844 770 1919 | http://www.voicedataworks.com/ | |
| Voice Flex | http://www.voiceflex.com/ | |||
| Voice On Data Ltd | Unit 5 Saturn House Calleva Park Aldermaston Berkshire RG7 8HA | 08454 667711 | ||
| Voice over IP Ltd | Skyways Business Park Fair Oak Close Exeter Devon EX5 2UL | 01392 445 566 | ||
| Voice41P Ltd | 30 Modwen Road Salford, Manchester M5 3EZ | 0161 908 0506 | ||
| Voicecom Networks Ltd | Voicecom Buildings Wych Cross, East Sussex RH18 5JL | 0870 770 0888 | ||
| Voicedata | http://www.voicedatagroup.co.uk/ | |||
| Voicedata Technology | http://www.voicedatagroup.co.uk/ | |||
| VoiceHost Ltd | St. Francis House, Queens Road, Norwich NR1 3PN | 0845 862 1862 | 0845 862 3862 | http://www.voicehost.co.uk/ |
| Voicenet Solutions Ltd | Oxford House, Bell Business Park, Aylesbury, Bucks HP19 8JR | 020 7096 6000 | 0870 622 0666 | http://www.voicenet-solutions.com/ |
| Voiceserve | ||||
| Voicetec Systems | ||||
| Voiceworks Ltd | 15 Highgate Edge Great North Road, London N2 0NT | 0845 241 1414 | ||
| VoIP Cheap | http://www.voipcheap.co.uk/ | |||
| VOIP Global Solutions Ltd | No 1 Olympic Way Wembley, Middlesex HA9 0NP | 020 8434 0590 | ||
| VoIP-4U Ltd | Midsummer Court, 314 Midsummer Boulevard, Central Milton Keynes MK9 2UB | 01908 764196 | http://voip.co.uk/ | |
| Voipfone | http://www.voipfone.co.uk/ | |||
| Voiplicity Ltd | Communications House, 56 Love Lane, Cowes, Isle of Wight PO31 7EU | 0845 024 0000 | http://www.voiplicity.co.uk | |
| VOIPOLOGY Ltd | Suite 404 324 Regent Street, London W1B 3HH | 020 7850 0353 | ||
| VoipPro | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | https://www.voippro.com/ | |
| Voipshare Ltd | 12 Ashbourne Road Ealing, London W5 3ED | 020 8810 6609 | ||
| VoIP-Un | European House Bournemouth International Airport Christchurch Dorset BH23 6EA | 0870 034 2000 | ||
| VoipWholesaleCompany | PO Box 201, L-2012 Luxembourg | +35 220 881 791 | http://www.voipwholesalecompany.com/ | |
| Voltage Telecom UK Ltd | No 22 1st Floor Newman Street, London N11 1RA | 020 7863 4000 | ||
| Vonage | 2 Temple Back East, Temple Quay, Bristol BS1 6EG | 020 7993 9000 | http://www.vonage.co.uk/ | |
| Vortech Ltd | Fetcham Park House Lower Road Leatherhead Surrey KT22 9HD | 01372 371177 | ||
| Vortex Telecom | ||||
| Vostron Ltd | B Vostron Limited 2 Venture Road Southampton Science Park Southampton SO16 7NP | 02380 111 111 | ||
| Voxalis | 4th Floor Harling House 47-51 Great Suffolk Street London SE1 0BS | 020 7078 3200 | http://www.voxalis.co.uk/ | |
| Voxbone SA | ||||
| Voxclever Ltd | Atrium Court The Ring, Bracknell RG12 1BW | 0118 990 0850 | http://www.voxclever.net/ | |
| VoxDev | Unit 16, Inex Business Park Abbey Road, Pity Me Durham County Durham DH1 2YJ | 08719 830 856 | ||
| VPS247 | http://www.vps247.com/ | |||
| VSL | Unit 1 New Luckhurst Farm Bethersden Smarden Kent TN27 8QT | 0845 258 1500 | ||
| VSL Networks Ltd | Unit 6, Martinfield Welwyn Garden City, Herts AL7 1HG | 0870 224 1717 | ||
| Vtesse Networks Ltd | John Tate Road Foxholes Business Park, Hertford SG13 7DT | 01992 532100 | ||
| VTI Communications | ||||
| VTL Ltd | Inbucon House, Wick Road, Egham, Surrey TW20 0HR | 01784 494248 | 01784 4942 | |
| VTSL Ltd | 5 Nickols Walk, London SW18 1BZ | 020 7078 3204 | ||
| VX Telecom Ltd | 204-226 Imperial Drive Rayners Lane Harrow Middlesex HA2 7HH | 020 8429 8552 | ||
| Wanstor Ltd | 242 Vauxhall Bridge Rd, London SW1V 1AU | 020 7592 7860 | ||
| Wardman UK Ltd | 7 Easter Inch Court Easter Inch Industrial Estate, Bathgate EH48 2FJ | 01506 530 393 | ||
| Warwicknet | http://www.warwicknet.com/ | |||
| Wave Telecom | ||||
| Wavecrest UK Ltd | 3rd Floor, The Argyle Centre, York Street, Ramsgate, Kent CT11 9DS | 01843 854600 | 01843 599034 | http://www.wavecrestcom.com/ |
| Waveeasy Ltd | ||||
| Wavenet UK | Friars Gate 2, 1011 Stratford Road,Solihull, West Midlands B90 4BN | 0844 412 7777 | 0844 412 7778 | http://www.wavenetuk.com/ |
| Waveworks Ltd | Chapel House Leicester Road Loughborough Leicester LE11 2AF | 0844 561 6100 | ||
| Wayes Telecommunications and Computing Consultancy Ltd | Allandale, 1 Rugby Road, Cubbington, Leamington Spa CV32 7HZ | 01926 316060 | 01926 316055 | http://www.wayes.com |
| Webb Computer Solutions Ltd | 89 Pinegrove Road, Southampton SO19 2PP | 02380 445 490 | ||
| WebCall Direct | http://www.webcalldirect.com/ | |||
| Webloop Telecom Ltd | 3 Phoenix Plaza Guildford Street Chertsey Surrey KY16 9GT | 0845 544 0541 | ||
| Webnet2000 Ltd | Consort House 15 De Montfort Place, Leicester LE1 7GZ | 0844 251 0521 | ||
| Webstar | ||||
| We-Doo Ltd | Unit 104 Ladyland Industrial Estate Hadleigh Suffolk IP7 6BQ | 01473 353400 | ||
| Welcome Telecom Ltd | G4 The Old Convent, Beeches Green, Stroud, Glous GL5 4AD | 0800 652 0853 | 0800 652 0854 | http://www.welcometelecom.co.uk/ |
| Welcomm Communications Ltd | Welcomm House 24 The Point Business Park Market Harborough Leics LE16 7QU | 01858 410 010 | ||
| West Wales Telecom | Camrose Lass Portfield Gate Haverfordwest, SA62 3LS | 0800 097 9899 | ||
| Westcom (SW) Ltd | 7 The Mall Clifton Village, Bristol BS8 4DP | 0117 985 0383 | ||
| Westcom Network Solutions Ltd | Unit 1 Beech Business Park Tillington Road, Hereford HR4 9QL | 01432 274 210 | ||
| Westcomm Ltd | ||||
| Weston Communications Ltd | Network House Whitehall Industrial Estate Whitehall Road Leeds LS12 5JB | 0113 389 0800 | ||
| White Horse Telecom Ltd | The Old Stables Well Street Burghclere Newbury, Berkshire RG20 9ND | 0845 367 1144 | ||
| White Rose Network Solutions Ltd | 3 Cook Close Brompton on Swale, Richmond DL10 7TY | 08008 778810 | http://www.wrnsltd.co.uk/ | |
| Whitemist | 122 Hamlet court Road Westcliff-on-Sea, Essex SO0 7LP | 01978 858541 | ||
| Whiteqube Ltd | Wessex House Oxford Road Newbury Berkshire RG14 1PA | 01635 814 466 | ||
| WHL Communications Ltd | 6 St Georges Yard Castle Street Farnham Surrey GU9 7LW | 01252 411 240 | ||
| Wick Hill Ltd | River Court Albert Drive Woking Surrey GU21 5RP | 01483 227 600 | ||
| Wicoms | http://www.wicoms.com/ | |||
| Widewell Communications | 49 Lulworth Drive, Plymouth PL6 7DT | 01752 721 226 | ||
| Wightcable 2005 Ltd | Communications House, 56 Love Lane, Cowes, Isle of Wight PO31 7EU | 01983 295050 | http://www2.wightcable.com/ | |
| Willaf | ||||
| Williams Partners Trading LLP | 15 Oakfield Street Pontarddulais, Swansea SA4 8LN | 01792 884488 | ||
| Windsor Telecom PLC | Provision of international simple voice resale | 08700 111200 | 08700 111300 | http://www.windsor-telecom.co.uk/ |
| Windsor Telecommunications | ||||
| Wire9 Telecom | ||||
| Wirebird Ltd | Aquatical House 39 Bell Lane, London E1 7LU | 020 7650 6664 | ||
| Wired Up Communications | 25 Hatton Gardens Nuthall, Nottingham NG16 1QT | 0845 845 0001 | ||
| Wirefast Ltd | Willow House 17-23 Willow Place, LONDON SW1P 1JH | 020 7592 1314 | ||
| Wireless Edge Communications Ltd | Bridge House London Bridge, London SE1 9QR | 020 8150 1392 | http://www.wirelessedge.net/ | |
| Wireless Telecommunications Ltd | 6 Commerce Way Whitehall Ind Est, Colchester CO2 8HN | 01206 870 565 | http://www.wtns.co.uk/ | |
| Wisdom Telecom Ltd | ||||
| Wish Communications | http://www.wishcommunications.co.uk/ | |||
| Wish Solutions Ltd | Unit 7a Burcote Wood Farm Business Park Wood Burcote Towcester Northamptionshire NN12 8TA | 0845 678 8848 | ||
| Wish Solutions (GB) Ltd | Unit 7a Burcote Wood Business Park Wood Burcote Towcester Northants NN12 8TA | 01327 359111 | ||
| Wizaner | ||||
| Wizards Ltd | PO Box 255, Great Missenden, Bucks HP16 9SD | 01494 837515 | 01494 837013 | http://www.wizards.co.uk/ |
| WN1 Ltd | Centre for Trade and Technology Waterside Drive, Wigan WN3 4BA | 0870 0664460 | ||
| Wodehouse IT Ltd | 177 Bramhall Lane Davenport, Stockport SK2 6JA | 0845 638 5214 | ||
| Woodcote Telecom | Electra House Electra Way Crewe Business Park Crewe CW1 6WZ | 0870 300 6767 | ||
| Woodford Computers Ltd | Essex Technology & Innovation Centre The Gables Fyfield Road Ongar, Essex CM5 0GA | 01277 368214 | ||
| Working IT Solutions LTD | 100 Lissadel Street Salford, Manchester M6 6BP | 0161 736 9600 | ||
| Worknet Computer Solutions Ltd | James House Mere Park Marlow Bucks SL7 1FJ | 01628 560 120 | ||
| Work-Phones | http://www.work-phones.co.uk/ | |||
| Worksmart Technology Ltd | ||||
| WorkSpace Solutions | Suite 305 The Citadel Business Centre Bath Road Chippenham Wiltshire SN15 2AB | 01249 848 165 | ||
| World Connect Ltd | Aizlewoods Mill Nusery Street, Sheffield S3 8GG | 0800 092 5522 | http://www.worldconnect.uk.com/ | |
| WorldCom Net Ltd | 88 Kingsway Holborn, London WC2 6AA | 0845 070 4520 | ||
| Worldnet Global Communications Ltd | WORLDNET HOUSE UNIT 8, LIBERTY CENTRE MOUNT PLEASANT WEMBLEY HA0 1TX | 0845 108 1000 | ||
| Worlds End Studios Ltd | Worlds End Studios 132-134 Lots Road, LONDON SW10 0RJ | 08454 567 019 | ||
| Worldwide Group | http://www.worldwidegroup.co.uk/ | |||
| Worldwide ISDN Ltd | 8 Arrows Court Adams Way Springfield Business Park Alcester B49 6PU | 01789 766 811 | http://www.Worldwideisdn.com/ | |
| Worth Comms Ltd | Branwell House Park Lane Keighley W Yorks BD21 4QX | 01535 691 507 | ||
| Worthmanor Ltd | 2 Didbrook Fields Cottages Toddington Cheltenham Gloucestershire GL54 5PE | 01242 621537 | ||
| Wyre Communications Ltd | ||||
| Wyre Forest Computer Solutions | http://www.wfcs.co.uk/ | |||
| X Kommunications Ltd | 268 Bath Road, Slough SL1 4DX | 08454 58 58 10 | ||
| X.COMMunications Ltd | 10a Station Road West Oxted, Surrey RH8 9EP | 03331 017 200 | ||
| X2 Communications Ltd | Unit 2, Moss Lane Business Centre Moss Lane Sandbach Cheshire CW11 3YX | 0845 688 3990 | ||
| Xcelon7 | 17 Coldeaton Lane Emerson Valley Milton Keynes Buckinhamshire MK4 2HE | 020 3130 1790 | ||
| Xero 9 | ||||
| XFone Inc | Britannia House, 960 High Road, London N12 9RY | 020 8497 9200 | http://www.xfone.com/ | |
| Xi Communications Ltd | Genesys House Sandbeck Way, Wetherby LS22 7DN | 0330 333 9200 | http://www.xicoms.com/ | |
| XILO Communications Ltd | 9 Bentick Street West End, London W1U 2EL | 0345 642 0340 | ||
| Xinix Business Services Ltd | 137 Powys Lane, London N13 4HL | 08456 800007 / 020 8886 1758 | ||
| Xinix World | 303-304 Parma House Clarendon Road, London N22 6UL | 020 8826 9500 | http://www.xinix.co.uk/ | |
| XL Networks Ltd | Unit 4 Priority Business Centre Curran Road Cardiff CF10 5ND | 0870 810 4242 | ||
| XL Telecom Ltd | Wye View House Bigstone Meadow Tutshill Glouchestershire NP16 7JU | 0844 544 7777 | ||
| XLN Telecom Ltd | The Brewery Building, 69 Bondway, London SW8 1SQ | 020 7793 5533 | 020 7793 5549 | http://www.xlntelecom.co.uk/ |
| Xltec Solutions Ltd | Xltec House 2E Napier Place, Cumbernauld G68 0LL | 01236 458054 | ||
| Xoom Systems | 32 Porthall Place, Brighton BN1 5PN | 01273 358132 | ||
| XRL Communications Ltd | XRC House Bradden Lane Gaddesden Row Hemel Hempstead, Hertfordshire HP2 6JB | 0870 404 4100 | ||
| Xtec Communications | 32 St James's Street, London E17 7PF | 020 8509 6201 | ||
| XTEL (UK) Ltd | Headway Business Centre Knowles Lane Bradford West Yorkshire BD4 9SW | 0845 389 9066 | ||
| Xtel Communications (UK) Ltd | Headway Business Centre Knowles Lane Dudley Hill Bradford, West Yorkshire BD4 9SW | 0845 389 9066 | ||
| Xtel Europe Ltd | Independent House Imberhorne Lane East Grinstead West Susex RH19 1TU | 01342 335 000 | http://www.xteleurope.com/ | |
| Xtra Talk Ltd | 2 Hillmans Court Coleraine, Co.Londonderry BT52 2DF | 02870 002 060 | ||
| X-Treme Networks Ltd | 15 Heywood Road Alderley Edge, Cheshire SK9 7PN | 020 3004 0879 | ||
| Y Fone Ltd | 9A High Street West Drayton, Middlesex UB7 7QG | 020 3026 3072 | ||
| Yab Telecom | 26 Westgate Rotherham, South Yorkshire S60 1AP | 01709 537 524 | ||
| Yarm Computers Ltd | 149a High Street, Yarm TS15 9AY | 0800 564 2800 | ||
| YCV Business Telecoms Ltd | 172 Colchester Road Ipswich, Suffolk IP4 4RS | 0800 862 0097 | ||
| Yell | ||||
| Yello Communications | 23 Meadvale Road West Knighton, Leicester LE2 3WN | 0116 2244 000 | ||
| Yellow Call Ltd | Eventide Business Centre Valley Road, Harmans Cross Wareham Dorset BH20 5HU | 01929 480 444 | ||
| Yellow Com Ltd | 200 Bath Street, Glasgow G2 4HG | 0141 882 4563 | ||
| Yellowspring Plc | 1 Aurum Court Sylvan Way Laindon,Basildon Essex SS15 6TH | 01268 494 111 | ||
| Yes Calls | http://www.yescalls.com/ | |||
| Yes Mobile | http://www.yesmobileworld.com/ | |||
| Yes Talk Ltd | 28 Alwin Road, Rowley Regis B65 8BN | 0800 849 8500 / 0121 559 0005 | ||
| Yesfreeads | http://www.yesfreeads.com/ | |||
| Yim Siam Telecom | ||||
| Yoozoom Ltd | Unit 8 Gemini Business Park Sheepscar Way, Leeds LS7 3JB | 0113 284 9100 | ||
| York Data Service | ||||
| Yorkshire Telecommunications Ltd | Unit 16 Riverside Way Ravensthorpe Industrial Estate, Dewsbury WF13 3LG | 01924 481524 | ||
| Your Call Ltd | 75-77 Drake Street Rochdale, Lancashire OL16 1SB | 0845 345 6787 | ||
| Your Connection Ltd | St Augustines Business Centre, 125 Canterbury Road, Westgate on Sea, Kent CT8 8NL | 0845 058 0750 | 0870 201 1122 | http://www.your-connection.co.uk/ |
| Yourcall | http://yourcallworld.com/ | |||
| Yourcalls.net | Premium House, The Esplanade, Worthing, West Sussex BN11 2BJ | 0845 450 5020 | 0845 601 4832 | http://www.yourcalls.net/ |
| Yourcalls.net Call Plans | ||||
| Yourcalls.net Saver | ||||
| YourTeams | http://www.yourcalls.net/ | |||
| Yoyofone | http://www.yoyofone.com/ | |||
| YYC Networks Ltd | 1 Molember Court Molember Road East Molesey Surrey KT8 9NF | 020 8398 9891 | ||
| Z1 Telecom Ltd | Enterprise House 20 'b' Dale Road Marple Stockport, Cheshire SK6 6HA | 0870 050 8021 | http://www.z1telecom.com/ | |
| ZAF Telecom | ||||
| Zamir Telecom Ltd | 4-6 Davenant Street, Unit A, London E1 5NB | 020 7870 3480 | 020 7691 7719 | http://www.zamirtelecom.com/ |
| Zap Communications | ||||
| Zebra Solutions Ltd | 48 Tottenham Court Road, London W1T 2EF | 020 7989 0250 | ||
| Zed One Technology Ltd | One Kingsmill Business Park Kingston Upon Thames, Surrey KT1 3GZ | 020 3326 0200 | ||
| Zefone Ltd | 10 Hamilton Way, Monmouth NP25 5BY | 0870 930 1090 | ||
| Zen Internet | Moss Bridge Road, Rochdale, Lancs OL16 5EA | 0845 058 9000 | 0845 058 9005 | http://www.zen.co.uk/ |
| Zencom Telecommunications Ltd | 16 Hanover Square Mayfair, London W1S 1HT | 0845 123 6900 | ||
| Zero 1 Networks Ltd | Mill View Avenue, Sunderland SR6 9HU | 0844 583 7070 | http://www.zero1networks.co.uk/ | |
| Zero Seven Telecom | Millennium House Brannam Crescent, Barnstaple EX31 3TD | 0800 019 2217 | ||
| zerop | http://www.zerop.co.uk/ | |||
| Zest4 Group Ltd | 8 Riverview The Embankment Vale Road Heatone Mersey, Stockport SK4 3GN | 0161 955 4745 | ||
| Zetnet Ltd | 23 New Mount Street, Manchester M4 4DE | 0161 838 5208 | ||
| Zimo Communications | http://www.zimo.co.uk/ | |||
| Zsquare Global Solutions Ltd | Station House, 17 Station Road, New Barnet, Herts EN5 1NW | http://zsgs.co.uk/ |
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