• 31e Cellular
  Westworld, West Gate, LONDON, Greater London, W5 1XP
• A A Communications
  174 Brabazon Road, HOUNSLOW, Middlesex, TW5 9LP
• Ace Comm Solutions
  24 Alie Street, LONDON, Greater London, E1 8DE
• Adk Communications
  33 Lilbourne Drive, HERTFORD, Hertfordshire, SG13 7WS
• Amnico
  4-5 Coleridge Gardens, LONDON, Greater London, NW6 3QH
• Analysys Mason Group Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Answer Communications
  1 Colney Hatch Lane, LONDON, Greater London, N10 1EA
• Arkadin UK Ltd
  26-28 Hammersmith Grove, LONDON, Greater London, W6 7JA
• BH Communications
  Suite 33, 10 Barley Mow Passage, LONDON, Greater London, W4 4PH
• BRC Consultancy Ltd
  Berkeley Square House, Berkeley Square, LONDON, Greater London, W1J 6BD
• Beagle Communications
  43 Heddon Court, Cockfosters Road, BARNET, Hertfordshire, EN4 0DF
• Berkley Management Services Ltd
  1 Berkley Road, BEACONSFIELD, Buckinghamshire, HP9 2AY
• Bhausman Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Blue Square Telecom
  Albert Buildings, 49 Queen Victoria Street, LONDON, Greater London, EC4N 4SA
• Brecknock Telecommunication
  29 Brecknock Road, LONDON, Greater London, N7 0BT
• Bridgegate Communications Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• Broadsystems
  14 Flood Walk, LONDON, Greater London, SW3 5RG
• C.F.M Communications
  Empire House, Empire Way, WEMBLEY, Middlesex, HA9 0EW
• C4communication Ltd
  Empire House, Empire Way, WEMBLEY, Middlesex, HA9 0EW
• CCG Corporate Consulting Group Ltd
  Nash House, Repton Place, AMERSHAM, Buckinghamshire, HP7 9LP
• Candela Communications Ltd
  50 Long Acre, LONDON, Greater London, WC2E 9JR
• Cartesian Ltd
  The Descartes House, Gate Street, LONDON, Greater London, WC2A 3HP
• Cascadia Connections
  47 Blandford Road, LONDON, Greater London, W4 1EA
• Catalyst Ltd
  31 Paxton Road, LONDON, Greater London, W4 2QT
• Certain Communications Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Chit Chat Communications
  110 London Road, ST ALBANS, Hertfordshire, AL1 1NX
• Cicero Strategy
  ST. Petersburgh Place, LONDON, Greater London, W2 4JY
• Ciena Ltd
  Ciena House, 43-51 Worship Street, LONDON, Greater London, EC2A 2DX
• City Lifeline Ltd
  Lifeline House, 80 Clifton Street, LONDON, Greater London, EC2A 4HB
• Clighton Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Commonwealth Communications Ltd
  26 York Street, LONDON, Greater London, W1U 6PZ
• Comsult Services Ltd
  87 Gallows Hill Lane, ABBOTS LANGLEY, Hertfordshire, WD5 0DD
• Corex Networks
  34-36 High Holborn, LONDON, Greater London, WC1V 6AE
• Cortel Chelsea
  1 Cremorne Road, LONDON, Greater London, SW10 0NA
• Cypher 7 Ltd
  38 Barlby Road, LONDON, Greater London, W10 6BL
• D Mason
  New Gallery House, 6 Vigo Street, LONDON, Greater London, W1S 3HF
• D.S.P.G. Ltd
  253a Kilburn Lane, LONDON, Greater London, W10 4BQ
• Daly International
  New Statesman House, Stafferton Way, MAIDENHEAD, Berkshire, SL6 1AY
• Datasharp Voice Solutions
  50 Lonsdale Road, LONDON, Greater London, W11 2DE
• Dexteris Consultants & Services Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Dynamical Systems Research Ltd
  The Glassmill, 1 Battersea Bridge Road, LONDON, Greater London, SW11 3BZ
• Econpower Consultancies
  268 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Elsat International Communications Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• Ethnic Communications Ltd
  50 Long Acre, LONDON, Greater London, WC2E 9JR
• Evolution Telco Ltd
  Cressex Enterprise Centre, Cressex Business Park, Cressex Business Park, HIGH WYCOMBE, Buckinghamshire, HP12 3RL
• Feedback Communications
  Suite 33, 10 Barley Mow Passage, LONDON, Greater London, W4 4PH
• Force Ten Communications Ltd
  11 69 St. Marks Road, LONDON, Greater London, W10 6JG
• Garnell Corporate Communications
  Morrell Court, Brownfields, WELWYN GARDEN CITY, Hertfordshire, AL7 1AY
• Global Defence Communications
  7 ST. Marys Road, LONDON, Greater London, NW11 9UE
• Global Telecom
  PO Box 2059, WATFORD, Hertfordshire, WD17 1XR
• Globalised Corporation Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• Grazebrook Laboratories
  Farm Cottage, Collinswood Road, Farnham Common, SLOUGH, Berkshire, SL2 3LJ
• H B Europe Corporate Services Ltd
  11 The Leather Market, Weston Street, LONDON, Greater London, SE1 3ER
• Hartley Communications
  104 Kingsbury Road, LONDON, Greater London, NW9 0AX
• Hays Telecoms
  The Pump House Stag Place, Town Lane, Wooburn Green, HIGH WYCOMBE, Buckinghamshire, HP10 0TT
• Head-Line Communication Ltd
  128 Park House, 15-19 Greenhill CR, WATFORD, Hertfordshire, WD18 8PH
• I C S
  Colet Court, 100 Hammersmith Road, LONDON, Greater London, W6 7JP
• I.T. Contract Management Ltd
  Unit 10 Hackford Walk, LONDON, Greater London, SW9 0QT
• Ijc Consulting & Communications Ltd
  115 Chase Side, Southgate, LONDON, Greater London, N14 5HD
• Independent Data Distribution Ltd
  Epworth House, 25 City Road, LONDON, Greater London, EC1Y 1AA
• Infinite Communications Ltd
  26 York Street, LONDON, Greater London, W1U 6PZ
• Instant Telecoms I T C Centre
  268 Regents Park Road, LONDON, Greater London, N3 3HN
• Integrated Digital Systems Ltd
  44-45 Chancery Lane, LONDON, Greater London, WC2A 1JB
• International Cheap Calls
  845 High Road, LONDON, Greater London, N17 8EY
• Intouch Communication Services Ltd
  63 Green Dragon Yard, LONDON, Greater London, E1 5NJ
• Itech Supplies
  King William House, 2a Eastcheap, LONDON, Greater London, EC3M 1AA
• KT Corporation London
  Mincing Lane, LONDON, Greater London, EC3R 7AE
• Kayeholdings.Com
  M S P House, Fourth Way, WEMBLEY, Middlesex, HA9 0HQ
• Kensal Com Centre Ltd
  Ladbroke Grove, LONDON, Greater London, W10 5NQ
• Knight & Associates
  Marina House, 108 Goldhawk Road, LONDON, Greater London, W12 8HD
• LCC Ltd
  54 Ayres Street, LONDON, Greater London, SE1 1EU
• Lee Morgan Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Lewis Brown Associates
  39-41 Chase Side, LONDON, Greater London, N14 5BP
• Logos Healthcare Communications Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Lumina Broadcast
  59a Fitzgeorge Avenue, LONDON, Greater London, W14 0SZ
• M D Telecomms
  41 Burnaby Gardens, LONDON, Greater London, W4 3DR
• M N Telecom
  17 Barham Court, Barham Close, WEMBLEY, Middlesex, HA0 2EB
• Mala Communications
  8 Beaumont Gate, Shenley Hill, RADLETT, Hertfordshire, WD7 7AR
• Mangodate Ltd
  8 Beaumont Gate, Shenley Hill, RADLETT, Hertfordshire, WD7 7AR
• Mason Communications
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Materna Communications plc
  Discovery House, Aveling Road, HIGH WYCOMBE, Buckinghamshire, HP13 6AE
• Materna Information & Communications Ltd
  Discovery House, Aveling Road, HIGH WYCOMBE, Buckinghamshire, HP13 6AE
• Mercury Energy
  1 Olympic Way, WEMBLEY, Middlesex, HA9 0NP
• Metapath Software International
  Strand Bridge House, 128-142 Strand, LONDON, Greater London, WC2R 1HH
• Mlambo Management Ltd
  8 Duncannon Street, LONDON, Greater London, WC2N 4JF
• Mobile 365 UK
  50 Southwark Street, LONDON, Greater London, SE1 1UN
• Modern Networks Ltd
  26 Gray's Inn Road, LONDON, Greater London, WC1X 8HR
• Moodia Internet Solutions
  91 Brick Lane, LONDON, Greater London, E1 6QL
• Mycom UK Ltd
  Wembley Point, 1 Harrow Road, WEMBLEY, Middlesex, HA9 6DE
• Nag Telecom
  6-10 Great Portland Street, LONDON, Greater London, W1W 8QL
• New England Telephone Co
  101 High Street, TRING, Hertfordshire, HP23 4AB
• O Bit Telecom Ltd
  Abbey House, 84b Easton Street, HIGH WYCOMBE, Buckinghamshire, HP11 1LT
• Oceanic Logistics
  23 Alexandra Road, LONDON, Greater London, NW4 2SB
• Olive Communications
  Tal House, 575 North End Road, WEMBLEY, Middlesex, HA9 0UU
• Oliver Company Ltd
  Northway House, 1379 High Road, LONDON, Greater London, N20 9LP
• P T A Telecom
  Seymour House, Whiteleaf Road, HEMEL HEMPSTEAD, Hertfordshire, HP3 9DE
• PTS Consulting UK Ltd
  50 Liverpool Street, LONDON, Greater London, EC2M 7PR
• Palebeck Telecommunications Technology Ltd
  9 Little Portland Street, LONDON, Greater London, W1W 7JF
• Pentagon Consulting
  268 Bath Road, SLOUGH, Berkshire, SL1 4DX
• Perkins Telecommunications Consultants International Ltd
  5 The Retreat, HARROW, Middlesex, HA2 7JH
• Phone Home & Away STD Ltd
  Congress House, 14 Lyon Road, HARROW, Middlesex, HA1 2EN
• Premier 786 Services (Zimbabwe) Ltd
  54 Leagrave Road, LUTON, Bedfordshire, LU4 8HZ
• Premier Telecom UK Ltd
  54 Leagrave Road, LUTON, Bedfordshire, LU4 8HZ
• Primus Telecommunications Ltd
  4 Victoria Street, LONDON, Greater London, SW1H 0GT
• Progressive Communication Associates
  Mitre House, 12-14 Mitre Street, LONDON, Greater London, EC3A 5BU
• Rapid Global
  George V Place, Thames Avenue, WINDSOR, Berkshire, SL4 1QP
• Red Moon Interactive
  78 Cannon Street, LONDON, Greater London, EC4N 6NQ
• Reid Communication Solutions
  358 Regents Park Road, LONDON, Greater London, N3 2LJ
• Sabio Ltd
  Unit 14 Canterbury Court, LONDON, Greater London, SW9 6DE
• Setel Satellite Ltd
  Tower House, 226 Cromwell Road, LONDON, Greater London, SW5 0SW
• Smart Info
  Unit 11 49-59 Old Street, LONDON, Greater London, EC1V 9HX
• Smarttalk Communications
  23 Burlington Lane, LONDON, Greater London, W4 2RN
• Stonehenge Infotel Ltd
  Churchill Court, Station Road, North Harrow, HARROW, Middlesex, HA2 7SA
• Synectiv Ltd
  Kingsbury House, 468 Church Lane, LONDON, Greater London, NW9 8UA
• System Talk Ltd
  Enterprise House, 297 Pinner Road, HARROW, Middlesex, HA1 4HS
• Tarifica
  24-25 Scala Street, LONDON, Greater London, W1T 2HP
• Tecteon plc
  19-20 Grosvenor Street, LONDON, Greater London, W1K 4QH
• Telenet London.Com
  222 Kensal Road, LONDON, Greater London, W10 5BN
• The Brand Development Co
  50 Long Acre, LONDON, Greater London, WC2E 9JR
• The Pride Group
  Kinnetic House The Kinnetic Centre, Theobald Street, BOREHAMWOOD, Hertfordshire, WD6 4PJ
• Tyler & Company
  Marble Arch Tower, 55 Bryanston Street, LONDON, Greater London, W1H 7LZ
• Unity
  214 ST. Albans Road, WATFORD, Hertfordshire, WD24 4AU
• Utility Discount Club
  Edge Business Centre, Humber Road, LONDON, Greater London, NW2 6EW
• Vaton Consultancy Services Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Vilsat Communications Ltd
  20-23 Greville Street, LONDON, Greater London, EC1N 8SS
• Violet Voice & Data Ltd
  8 Albert Road, East Barnet, BARNET, Hertfordshire, EN4 9SH
• Voice & Data
  7 Oakleigh Road North, LONDON, Greater London, N20 0UA
• Voice Solutions
  8 Albert Road, BARNET, Hertfordshire, EN4 9SH
• Waves Telecom Ltd
  ST. Albans Business Centre, 1 Stonecross, ST ALBANS, Hertfordshire, AL1 4AA
• Wireplace Ltd
  128 Park House, 15-19 Greenhill CR, WATFORD, Hertfordshire, WD18 8PH
• Xinix World
  3rd Floor Parma House, Clarendon Road, LONDON, Greater London, N22 6UL
• Zencom Telecommunications
  16 Hanover Square, LONDON, Greater London, W1S 1HT