• 1st Engineering Ltd
  101 Bramerton Road, BECKENHAM, Kent, BR3 3NY
• 1st Line Internet Services Llp
  26 Colliers Water Lane, THORNTON HEATH, Surrey, CR7 7LA
• 21st Century Business Phones Ltd
  33 Spencer Mews, LONDON, Greater London, W6 8PB
• 3c Communications Ltd
  Fifth Floor Regal House, London Road, TWICKENHAM, Middlesex, TW1 3QS
• 4mat Internet
  51 Bridge Street, LEATHERHEAD, Surrey, KT22 8BN
• A Z Global Marketing
  6a Pavilion Parade, Wood Lane, LONDON, Greater London, W12 0HQ
• A2bnet.Com Ltd
  5 Acacia Drive, BANSTEAD, Surrey, SM7 1LD
• A4 Internet Ltd
  174 Battersea Park Road, LONDON, Greater London, SW11 4ND
• Abbey Technology Ltd
  4 Saxon Business Centre, Windsor Avenue, LONDON, Greater London, SW19 2RR
• Access Computer Networks Ltd
  25 Thorndon Gardens, EPSOM, Surrey, KT19 0QB
• Access Networks Solutions Ltd
  Devlin House, 36 St George Street, LONDON, , W1S 2FW
• Activisys
  47-49 Park Royal Road, LONDON, Greater London, NW10 7LQ
• Ad Communication Ltd
  171 Peckham High Street, Peckham, LONDON, Greater London, SE15 5SL
• Aeko Ltd
  61 Victoria Avenue, SURBITON, Surrey, KT6 5DN
• Afaab Consultancy Ltd
  4 Park Road, KINGSTON UPON THAMES, Surrey, KT2 6BN
• Affle Ltd
  1 Stanford Road London, LONDON, Greater London, W8 5PP
• African Development Initiatives Ltd
  224 Ifield Road, West Green Crawley, CRAWLEY, West Sussex, RH11 7HY
• Airwide Solutions Holdings Ltd
  5th Floor Alder Castle, 10 Noble Street, LONDON, Greater London, EC2V 7QL
• Ajeet Global Electronics Ltd
  7 Stanhope Heath, Stanwell, STAINES, Middlesex, TW19 7PH
• Ak Consulting Ltd
  23 Bevin Square, LONDON, Greater London, SW17 7BB
• Alexandra Communications Co. Ltd
  8 D'Arcy Road, SUTTON, Surrey, SM3 8NH
• Alibitel Ltd
  9 Firs Avenue, East Sheen, LONDON, Greater London, SW14 7NZ
• Alj Consulting Ltd
  60 Northcote Road, TWICKENHAM, Middlesex, TW1 1PA
• All Bright Sparks
  14a Upper Mulgrave Road, SUTTON, Surrey, SM2 7AZ
• Almeria Networks Ltd
  BLM Salisbury House, London Wall, LONDON, Greater London, EC2M 3QB
• Ambient Communications Ltd
  Priory House, Marsh Road Alperton Lane, WEMBLEY, Middlesex, HA0 1ES
• Amps Communications Ltd
  4 Oaktree Gardens, BROMLEY, Kent, BR1 5BH
• Andersons
  Greenacre, Philpot Lane, Chobham, WOKING, Surrey, GU24 8HD
• Anysys Ltd
  18 Clandon Avenue, EGHAM, Surrey, TW20 8LP
• Apex Global Trading Ltd
  256 Farnham Road, SLOUGH, Berkshire, SL1 4XL
• Arborean Internet Ltd
  10 The Spinneys, Bickley Bromley, BROMLEY, Kent, BR1 2NU
• Aria Telecom Ltd
  2nd Floor 20 Iron Monger Lane, LONDON, Greater London, EC2V 8EP
• Arinc Incorporated
  Shaw House, Pegler Way, CRAWLEY, West Sussex, RH11 7AF
• Armadillo Managed Services Ltd
  8 The Square, Stockley Park, UXBRIDGE, Middlesex, UB11 1FW
• Aro Consultancy Ltd
  26 Montagu House, 109 Whitfield Street, LONDON, Greater London, W1T 4HJ
• Ashstead Associates Ltd
  55 Ravenscroft Road, LONDON, Greater London, E16 4AF
• Assured Communications
  151 Bramblewood Close, CARSHALTON, Surrey, SM5 1PH
• At & T Business Communications
  Landsdowne House, Berkeley Square, LONDON, Greater London, W1J 6ER
• Atlanta Technology
  20a Brownlow Mews, LONDON, Greater London, WC1N 2LD
• Atlas Datacom Ltd
  49 Blagdon Road, LONDON, Greater London, SE13 7HH
• Atriea Ltd
  7 Martyrs Avenue, CRAWLEY, West Sussex, RH11 7RX
• Aurora Tech Solutions
  Trident Business Centre, 89 Bickersteth Road, LONDON, Greater London, SW17 9SH
• Aviscon Ltd
  1 Manor Cottages, Evesham Road North, REIGATE, Surrey, RH2 9DW
• Axis Employee Communications Ltd
  Southwark Street, LONDON, , SE1 1UN
• Banana Cable Co Ltd
  74 Harvest Road, Englefield Green, EGHAM, Surrey, TW20 0QR
• Beach Communications
  The Yard, Adenmore Road, LONDON, Greater London, SE6 4RH
• Bellview Communications Ltd
  22 Newlands Woods, Bardolph Avenue, CROYDON, Surrey, CR0 9JR
• Bespoke Internet & Business Solutions Ltd
  623 Uxbridge Road, HAYES, Middlesex, UB4 8HR
• Bethlehem Technologies London Ltd
  No 6 30 Harrington Gardens, LONDON, Greater London, SW7 9LT
• Bic Cabling Solutions Ltd
  62 Updown Hill, WINDLESHAM, Surrey, GU20 6DT
• Bic Corporation Ltd
  62 Updown Hill, WINDLESHAM, Surrey, GU20 6DT
• Bis Ltd
  38 St Mary Axe, LONDON, Greater London, EC3A 8BH
• Bluefire Consultancy Ltd
  115a Rusthall Avenue, Chiswick London, LONDON, Greater London, W4 1BN
• Blyk
  51-53 Great Marlborough Street, 4th Floor, London, , W1F 7JT
• Boltblue plc
  PO Box 52769, London, Greater London, EC2P 2UW
• Boztec Ltd
  PO Box 109, GODALMING, Surrey, GU7 3XG
• Boztec Ltd
  Boztec House, 19 Meadrow, GODALMING, Surrey, GU7 3HJ
• British Monomarks Ltd
  27 Old Gloucester Street, LONDON, Greater London, WC1N 3AF
• Broadband Shop Ltd
  93 Mallinson Road, LONDON, Greater London, SW11 1BL
• Brookland Computer Services
  Kent House, 27-33 Upper Mulgrave Road, SUTTON, Surrey, SM2 7AY
• Buffalo Technology UK Ltd
  176 Buckingham Avenue, SLOUGH, Berkshire, SL1 4RD
• Building Intelligence Ltd
  The Old Truman Brewery, 91 Brick Lane, LONDON, Greater London, E1 6QL
• Building Zones Ltd
  7 St Johns Mews, St Johns Road, Hampton Wick, KINGSTON UPON THAMES, Surrey, KT1 4AN
• Buongiorno Marketing Services UK Ltd
  28-30 Kirby Street, LONDON, Greater London, EC1N 8TE
• Business Sense
  Ambassador House, Brigstock Road, THORNTON HEATH, Surrey, CR7 7JG
• C Hear (Europe) Ltd
  16 Hewett Street, LONDON, Greater London, EC2A 3NN
• C Hear Technologies
  16 Hewett Street, LONDON, Greater London, EC2A 3NN
• CPW Network Services Ltd
  80 Hammersmith Road, LONDON, , W14 8UD
• CSL
  63 Hillingdale, Biggin Hill, WESTERHAM, Kent, TN16 3NR
• CVR Communications Ltd
  17 Meadfield Road Langley, SLOUGH, Berkshire, SL3 8HW
• Cablefree Solutions Ltd
  1 ST. Clare Business Park, Holly Road, HAMPTON, Middlesex, TW12 1PZ
• Cabletalk
  Unit 13 Saxon Business Centre, Windsor Avenue, LONDON, Greater London, SW19 2RR
• Cabletron Systems Ltd
  Ingersoll House, 9 Kingsway, LONDON, Greater London, WC2B 6XF
• Cabot Recruitments Ltd
  30 Purbrook Estate, Tower Bridge Road, LONDON, Greater London, SE1 3BZ
• Call Cas Ltd
  353a Brockley Road, Brockley, LONDON, Greater London, SE4 2AG
• Call Link Telecommunications Ltd
  3 Doghurst Avenue, Harlington Hayes, HAYES, Middlesex, UB3 5BJ
• Call2call Ltd
  Digital Village, 102 Cavell Street, LONDON, Greater London, E1 2JA
• Capua Computers
  17 Suffolk Close, SLOUGH, Berkshire, SL1 6JN
• Capua Ltd
  17 Suffolk Close, SLOUGH, Berkshire, SL1 6JN
• Carbonred Ltd
  Unit 6, 70 Homefield Road, BROMLEY, Kent, BR1 3AL
• Cardonet Ltd
  70-78 York Way, LONDON, Greater London, N1 9AG
• Careline Financial Services Ltd
  250 Gunnersbury Avenue, LONDON, Greater London, W4 5QB
• Carlyon Communications Ltd
  18 Kings Road, MITCHAM, Surrey, CR4 1SN
• Celltext Ltd
  4 Vine House, 26 Armoury Way, LONDON, Greater London, SW18 1HZ
• Centre Core Ltd
  1 Virginia Street, LONDON, Greater London, E98 1TH
• Charentel Ltd
  9 Kings Close, STAINES, Middlesex, TW18 1JS
• Chikay Ltd
  78 Oakleigh Way, MITCHAM, Surrey, CR4 1AN
• China Telecom (Europe) Ltd
  2nd Floor Bellerive House, 3 Muirfield Crescent, LONDON, , E14 9SZ
• Chris Communications Ltd
  191 Auckland Hill, West Norwood, LONDON, Greater London, SE27 9PD
• Cisilion Ltd
  8 Silverglade Business Park, Leatherhead Road, CHESSINGTON, Surrey, KT9 2QL
• City Cell Ltd
  264-267 Tottenham Court Road, LONDON, Greater London, W1T 7RH
• Claa Internet Cafe
  40 Peckham Rye, Peckham Southwark, LONDON, Greater London, SE15 4JR
• Class Telecommunications
  Givons House, Givons Grove, LEATHERHEAD, Surrey, KT22 8LY
• Clear Mobile Communications Ltd
  8 Selbys, LINGFIELD, Surrey, RH7 6DU
• Cleartalk Ltd
  11 Hawkshill Way, ESHER, Surrey, KT10 8LH
• Click Solutions.Net Ltd
  Worth Corner, Turners Hill Road, Pound Hill, CRAWLEY, West Sussex, RH10 7SL
• Colonial Capital Corporation
  New Loom House, 101 Back Church Lane, LONDON, Greater London, E1 1LU
• Com 1 Communications Ltd
  Communications House 26 Leazes, Avenue, Chaldon, CATERHAM, Surrey, CR3 5AH
• Comcast International
  Network House, Bradfield St., WOKING, Surrey, GU22 7RE
• Cometrics Ltd
  2a Disraeli Road, Ealing, LONDON, Greater London, W5 5HP
• Communication Support Solutions Ltd
  294 Friern Road, Dulwich, LONDON, Greater London, SE22 0BQ
• Communications & Network Consulting
  Bedford House, 3 Bedford Street, LONDON, Greater London, WC2E 9HD
• Communications Installations
  Unit 230 Kingspark Business Centre, 152-178 Kingston Road, NEW MALDEN, Surrey, KT3 3ST
• Communications Installations & Property Services Ltd
  39 Woodcroft, Mottingham, LONDON, Greater London, SE9 3EG
• Communications Link
  Gainsborough House, 33 Throgmorton Street, LONDON, Greater London, EC2N 2BR
• Communications Network Ltd
  Unit 2 26 Clayton CR, BRENTFORD, Middlesex, TW8 9PT
• Comparex International Holding Co Ltd
  Prescott Road, Colnbrook, SLOUGH, Berkshire, SL3 0AE
• Compass Hi-Tech Ltd
  16 Muirfield Close, Ryder Drive, LONDON, Greater London, SE16 3BG
• Computel Consultancy Ltd
  68 Lomond Gardens, SOUTH CROYDON, Surrey, CR2 8EQ
• Computer Netlink Systems Ltd
  Westmead House, 123 Westmead Road, SUTTON, Surrey, SM1 4JH
• Compuware Frontiers Ltd
  Unit 1-2 Broadfield Close, CROYDON, Surrey, CR0 4XR
• Comsolve It Ltd
  Yew Tree Cottage The Street, East Clandon, GUILDFORD, Surrey, GU4 7RU
• Conalway Ltd
  6th Floor Queens House, 55/56 Lincoln's Inn Fields, LONDON, Greater London, WC2A 3LJ
• Confru Systems
  54 Beclands Road, LONDON, Greater London, SW17 9TJ
• Connected Business Solutions Ltd
  4 Hma House, 78 Durham Road, LONDON, Greater London, SW20 0TL
• Connecting London Ltd
  80 Old Brompton Road, LONDON, , SW7 3LQ
• Conphinet Ltd
  111a Aldershot Road, GUILDFORD, Surrey, GU2 8BE
• Consilium Networks
  Ember House, The Green, WALTON ON THAMES, Surrey, KT12 4HR
• Continuation Computers Ltd
  New Court, ST. Swithens Lane, LONDON, Greater London, EC4P 4DY
• Convergent Network Solutions
  64 Cannon Street, LONDON, Greater London, EC4N 6AE
• Cool Fire Communications Ltd
  389 Greenford Avenue, Hanwell, LONDON, Greater London, W7 1JJ
• Cooper Covell Communications Ltd
  6 Empress Mews, Kenbury Street, LONDON, Greater London, SE5 9BT
• Corporact
  Blackwell House, Guildhall Yard, LONDON, Greater London, EC2V 5AE
• Cortel Ltd
  2 Lots Road, Chelsea, LONDON, Greater London, SW10 0QF
• Country Wide Communication Services
  326 Chessington Road, Ewell, EPSOM, Surrey, KT19 9XG
• Cray Valley Communications Ltd
  Unit 11 Concorde Business Centre Airport Industrial Estate, Main Road, Biggin Hill, WESTERHAM, Kent, TN16 3YN
• Creative Imporia Ltd
  202 Vicarage Farm Road, Heston, HOUNSLOW, Middlesex, TW5 0DP
• Crimson Communications Ltd
  54 Dartmouth Court, Dartmouth Grove, LONDON, Greater London, SE10 8AT
• Crossharbour Ltd
  4 Isambard Mews, LONDON, Greater London, E14 3XB
• Crystaline Communications Ltd
  116 Oaklands Road, LONDON, , W7 2DX
• Custom Networks Ltd
  21 Ranmore Road, DORKING, Surrey, RH4 1HE
• Cyan Communications
  119 Wardour St, LONDON, Greater London, W1F 0UQ
• Cybergate Network & Data Communications
  3 Leigh Street, LONDON, Greater London, WC1H 9EW
• D C & Co (GB) Ltd
  46 Beechfield Road, BROMLEY, Kent, BR1 3BU
• D D I Communications Solutions
  London House, 271 King Street, LONDON, Greater London, W6 9LZ
• D.G. Network Communications Ltd
  4 Dell Close, Fetcham, LEATHERHEAD, Surrey, KT22 9HB
• DRF Enterprises Ltd
  67 Elmbank Way, Hanwell, LONDON, Greater London, W7 3DF
• Dac It Solutions Ltd
  14 Kent Road, WINDLESHAM, Surrey, GU20 6JF
• Dacc (Europe) Ltd
  Cannon Workshops, 63 Cannon Drive, LONDON, Greater London, E14 4AS
• Dak Computing Services Ltd
  7 Broxholm Road, LONDON, Greater London, SE27 0NA
• Dallodge Ltd
  38 Danescort Crescent, SUTTON, Surrey, SM1 3EA
• Data Management Services
  3 Hounslow Business Park, Alice Way, HOUNSLOW, Middlesex, TW3 3UD
• Datacall Electrical Services
  9 Selham Close, CRAWLEY, West Sussex, RH11 0EH
• Datafonix Ltd
  72 Downs Road, COULSDON, Surrey, CR5 1AF
• Datanet Installations U.K. Ltd
  14 Rougemont Avenue, MORDEN, Surrey, SM4 5PZ
• Datis Internatio