• A A Telecom Ltd
  38 Thames Street, SUNBURY ON THAMES, Middlesex, TW16 6AF
• Aastra Telecom UK Ltd
  Unit B3 Armstrong Mall, Southwood Business Park, FARNBOROUGH, Hampshire, GU14 0NR
• Acorn Wireless Ltd
  Acorn House 40 Eddington Road, BRACKNELL, Berkshire, RG12 8GF
• Aerial Engineering Co Ltd
  5 Curfew Yard, Thames Street, WINDSOR, Berkshire, SL4 1SN
• Aggregated Telecom Ltd
  Prophecy House, 87 London Street, READING, Berkshire, RG1 4QA
• Airspan Communications Ltd
  Cambridge House, Oxford Road, UXBRIDGE, Middlesex, UB8 1UN
• Airspan Networks Eastern Europe Ltd
  Cambridge House, Oxford Road, UXBRIDGE, Middlesex, UB8 1UN
• Alfca Systems
  Kingswick House, Kingswick Drive, ASCOT, Berkshire, SL5 7BH
• All Your Communications
  2 Fleet Business Park, Sandy Lane, Church Crookham, FLEET, Hampshire, GU52 8BF
• Apex Communications
  Nine Mile Ride, CROWTHORNE, Berkshire, RG45 6BQ
• Applied Telecom
  11a Pinkneys Road, MAIDENHEAD, Berkshire, SL6 5DJ
• Area Communications
  16 Acacia Avenue, Wraysbury, STAINES, Middlesex, TW19 5HD
• Aspect Software UK Ltd
  2 The Square, Stockley Park, UXBRIDGE, Middlesex, UB11 1AD
• Aspen Electronics Ltd
  1-3 Kildare Close, RUISLIP, Middlesex, HA4 9UR
• Benetix Ltd
  Unit 14 Grove Park Industrial Estate, Waltham Road, White Waltham, MAIDENHEAD, Berkshire, SL6 3LW
• Blackford Telecoms Ltd
  8 French Gardens, Blackwater, CAMBERLEY, Surrey, GU17 9DP
• Blue Coat Systems Ltd
  459 London Road, CAMBERLEY, Surrey, GU15 3JA
• Bradmatt Telecom Ltd
  Cobbett Hill Radio Station, Cobbett Hill, Normandy, GUILDFORD, Surrey, GU3 2AA
• Britannic Group (Holdings) Ltd
  Genesis House, Merrow Lane, GUILDFORD, Surrey, GU4 7BN
• Bruel & Kjaer
  92 Uxbridge Road, Harrow Weald Lodge, HARROW, Middlesex, HA3 6BZ
• Business Systems (U.K.) Ltd
  462 London Road, ISLEWORTH, Middlesex, TW7 4ED
• C K Business Systems
  46 Horsenden La North, GREENFORD, Middlesex, UB6 0PA
• Cablefree Solutions Ltd
  27 Matham Road, EAST MOLESEY, Surrey, KT8 0SX
• Cantata Technology Ltd
  Unit 4 Bracknell Enterprise Centre, BRACKNELL, Berkshire, RG12 1NF
• Certacom (Switching) Ltd
  1 Holtspur Lane, Wooburn Green, HIGH WYCOMBE, Buckinghamshire, HP10 0AA
• Chartwell Telecom Consultants Ltd
  Mill Lane, GODALMING, Surrey, GU7 1EY
• Cleanline Installations Ltd
  Terminal House, Station Approach, SHEPPERTON, Middlesex, TW17 8AS
• Communications Specialists
  Unit 3, 459 London Road, CAMBERLEY, Surrey, GU15 3JA
• Comverse UK Ltd
  Cranbourne House, 135 Bath Road, SLOUGH, Berkshire, SL1 3UX
• Converged Technologies Ltd
  12 High Street, Odiham, HOOK, Hampshire, RG29 1LG
• Converse UK Ltd
  Hertford Place, RICKMANSWORTH, Hertfordshire, WD3 9XF
• Cross Medical Technologies Ltd
  1 Lakeside Business Park, Swan Lane, SANDHURST, Berkshire, GU47 9DN
• Cross Technologies plc
  1 Lakeside Business Park, Swan Lane, SANDHURST, Berkshire, GU47 9DN
• Cubix Ltd
  34 Candlemas Lane, BEACONSFIELD, Buckinghamshire, HP9 1AF
• Daltec Associates Ltd
  5 Oxford Road, Wealdstone, HARROW, Middlesex, HA3 7RG
• Data-Flo Business Solutions
  Research House, Fraser Road, Perrivale, GREENFORD, Middlesex, UB6 7AQ
• Dataflex Design Communications Ltd
  Connect House, Kingston Road, LEATHERHEAD, Surrey, KT22 7LT
• Datasharp Telecom
  Linton House, The Rowans, Chalfont St. Peter, GERRARDS CROSS, Buckinghamshire, SL9 8SE
• Digital Business Services Ltd
  95 Desford Way, ASHFORD, Middlesex, TW15 3AS
• Discount Payphones
  177 High Street, Langley, SLOUGH, Berkshire, SL3 8LP
• Discount Payphones
  5 Tulip Close, HAMPTON, Middlesex, TW12 3SA
• Dolphin Communications
  85 Kingsley Road, HOUNSLOW, Middlesex, TW3 4AH
• Duplex Corporate Communications
  55 Station Road, BEACONSFIELD, Buckinghamshire, HP9 1QL
• Elmeg
  2 Rydens Road, WALTON ON THAMES, Surrey, KT12 3BS
• Em3 Technologies Ltd
  The Hall, Woking Road, GUILDFORD, Surrey, GU1 1QD
• Envoy Holdings Ltd
  2 The Square, Stockley Park, UXBRIDGE, Middlesex, UB11 1AD
• Enzcom Solutions
  4 Maple Industrial Estate, Maple Way, FELTHAM, Middlesex, TW13 7AW
• Euro Worldwide Communications
  85 Kingsley Road, HOUNSLOW, Middlesex, TW3 4AH
• Expert Commumications plc
  3 Ashville Way, WOKINGHAM, Berkshire, RG41 2PL
• Funis
  Star House, Star Road, UXBRIDGE, Middlesex, UB10 0QH
• G P T Video Systems
  Foundation Park, 6 Roxborough Way, MAIDENHEAD, Berkshire, SL6 3UD
• Geonix Technology Ltd
  Surrey Technology Centre, Occam Road, Surrey Research Park, GUILDFORD, Surrey, GU2 7YG
• Granger Telecom
  Granger Corner, 1 Brooklands Road, WEYBRIDGE, Surrey, KT13 0SD
• H D P Consultant Engineers
  Mill Lane, GODALMING, Surrey, GU7 1EY
• I.P. Integration Ltd
  Attenborough House, 15 Bennet Road, READING, Berkshire, RG2 0QX
• Integration Properties Ltd
  Attenborough House, 15 Bennet Road, READING, Berkshire, RG2 0QX
• Internet Videocommunications Ltd
  Alexander House Mere Park, Dedmere Road, MARLOW, Buckinghamshire, SL7 1FX
• Jetstream Communications Ltd
  16 Elmtree Road, TEDDINGTON, Middlesex, TW11 8ST
• KLC Employment Law Consultantsllp
  Mill Lane, GODALMING, Surrey, GU7 1EY
• Kokusai Electric Europe GmbH
  West Cross Centre, Great West Rd., BRENTFORD, Middlesex, TW8 9ER
• Live Link Video Communications Ltd
  Alexander House Mere Park, Dedmere Road, MARLOW, Buckinghamshire, SL7 1FX
• Longcroft (GX) Management Company Ltd
  49 Station Road, GERRARDS CROSS, Buckinghamshire, SL9 8ES
• M T V Distribution plc
  Unit 8 9 Sky Business Park, Eversley Way, EGHAM, Surrey, TW20 8RF
• MTV Telecom (Distribution) plc
  Unit 8 9 Sky Business Park, Eversley Way, EGHAM, Surrey, TW20 8RF
• Mavisat Ltd
  2 Wokingham Road, READING, Berkshire, RG6 1JG
• Mccarthy
  Village Way, YATELEY, Hampshire, GU46 7SE
• Mcgurk
  5 ST. Michaels Cottages, Old Wokingham Road, WOKINGHAM, Berkshire, RG40 3DU
• Metrodata Ltd
  Blenheim House Crabtree Office Village, Eversley Way, EGHAM, Surrey, TW20 8RY
• Microwave Network Inc
  7 Clivemont Road, MAIDENHEAD, Berkshire, SL6 7BU
• Msys Telecom Ltd
  Crowthorne Enterprise Centre Crowthorne Business Estate, Old Wok, CROWTHORNE, Berkshire, RG45 6AW
• Multipulse Electronics Ltd
  3 Goldsworth Park Trading Estate, Kestrel Way, WOKING, Surrey, GU21 3BA
• Next Systems Ltd
  67-69 Woodham Lane, New Haw, ADDLESTONE, Surrey, KT15 3ND
• Olympia Technology
  5 Archdale Business Centre, Brember Road, HARROW, Middlesex, HA2 8DJ
• Omnia Telecom Ltd
  9 Edward Avenue, CAMBERLEY, Surrey, GU15 3BB
• Pauls Electronic Services
  34 Mount Street, DORKING, Surrey, RH4 3HX
• Preferred One Stop Technologies
  1 Lakeside Business Park, Swan Lane, SANDHURST, Berkshire, GU47 9DN
• Racal-Tacticom Ltd
  472 Basingstoke Road, READING, Berkshire, RG2 0QN
• Raymond H Burrell Associates Ltd
  Unit D8, Chobham, WOKING, Surrey, GU24 8HU
• Redwood Technologies Ltd
  The Redwood Building, Broad Lane, BRACKNELL, Berkshire, RG12 9GU
• Ring It
  24 Linden Way, Ripley, WOKING, Surrey, GU23 6LW
• River Court Consultants Ltd
  Mill Lane, GODALMING, Surrey, GU7 1EY
• S W Communications
  38 Station Road, North Harrow, HARROW, Middlesex, HA2 7SE
• Scribble Communications Ltd
  MWB Business Exchange, 2 Gayton Road, HARROW, Middlesex, HA1 2XU
• Skystream Networks
  The Granary Grange Court, Grange Road, Tongham, FARNHAM, Surrey, GU10 1DW
• Storacall Technology Ltd
  Swan House, 69-71 Windmill Road, SUNBURY ON THAMES, Middlesex, TW16 7DT
• Synectiv
  MWB Business Exchange, 2 Gayton Road, HARROW, Middlesex, HA1 2XU
• System Supply Services
  2 Mill Lane, Peasmarsh, GUILDFORD, Surrey, GU3 1NB
• TTP Com
  20 Nugent Road, GUILDFORD, Surrey, GU2 7AF
• Technical Professional Radio Solutions Ltd
  1 Grove Park Industrial Estate, White Waltham, MAIDENHEAD, Berkshire, SL6 3LW
• Tekelec Telecommunications Equipment
  Wacker House, 85 High Street, EGHAM, Surrey, TW20 9HF
• Telefonix
  11a Camp Road, FARNBOROUGH, Hampshire, GU14 6EN
• Telenova Ltd
  144 Regina Road, SOUTHALL, Middlesex, UB2 5PP
• Telephone Systems
  57 Grove Road, Emmer Green, READING, Berkshire, RG4 8LJ
• Topcall
  R S A House, 12 Western Road, BRACKNELL, Berkshire, RG42 1RT
• Tunbridge Commercial Investments Ltd
  Connaught House, Alexandra Terrace, GUILDFORD, Surrey, GU1 3DA
• Vale Communications
  333 Connaught Road, Brookwood, WOKING, Surrey, GU24 0AD
• Waldon Developments Ltd
  Beaver House, York Close, Byfleet, WEST BYFLEET, Surrey, KT14 7HN
• Worldwide Communications Bureau Ltd
  103 Wokingham Road, READING, Berkshire, RG6 1LH
• Zultys Technologies UK Ltd
  A 8 Denmark Street, WOKINGHAM, Berkshire, RG40 2BB