| Company | Headquarters / Registered Office | Nature of Business | Rank | Map |
| AT&T (UK) |
HIGHFIELD HOUSE HEADLESS CROSS DRIVE REDDITCH WORCESTERSHIRE B97 5EQ |
6420 - Telecommunications |
0.0447 | |
| ASPECT SOFTWARE UK LIMITED |
2 THE SQUARE STOCKLEY PARK UXBRIDGE MIDDLESEX UB11 1AD |
0.0447 | ||
| ORANGE BRAND SERVICES LIMITED |
3 MORE LONDON RIVERSIDE LONDON ENGLAND ENGLAND SE1 2AQ |
0.0444 | ||
| KDDI EUROPE LIMITED |
HILL HOUSE 1 LITTLE NEW STREET LONDON EC4A 3TR |
6420 - Telecommunications |
0.0444 | |
| C&C COMMUNICATIONS LIMITED |
8 OLYMPUS COURT OLYMPUS AVENUE WARWICK WARWICKSHIRE CV34 6RZ |
0.0444 | ||
| BEECHSON LTD |
5 BROOK STREET DAVENTRY NORTHAMPTONSHIRE NN11 4GG |
6420 - Telecommunications |
0.0443 | |
| RADIO INVICTA LIMITED |
30 LEICESTER SQUARE LONDON WC2H 7LA |
6420 - Telecommunications |
0.0443 | |
| HERMES DATACOMMUNICATIONS INTERNATIONAL LIMITED |
HERMES HOUSE OXON BUSINESS PARK WELSHPOOL ROAD SHREWSBURY SY3 5DD |
0.0443 | ||
| BSCL COMMUNICATIONS (NORTH) LTD. |
UNIT 1 STOKE VIEW BUSINESS PARK FISHPONDS BRISTOL BS16 3AE |
0.0442 | ||
| CALL TELECOM LTD |
90 BLUNDEN DRIVE SLOUGH UNITED KINGDOM SL3 8WQ |
0.0442 | ||
| CYBERTECH UK LIMITED |
c/o NICE SYSTEMS UK LIMITED TOLLBAR HOUSE TOLLBAR WAY HEDGE END SOUTHAMPTON HAMPSHIRE ENGLAND SO30 2ZP |
0.0442 | ||
| THE PUBLIC IP EXCHANGE LIMITED |
READING INTERNATIONAL BUSINESS PARK BASINGSTOKE ROAD READING BERKSHIRE RG2 6DA |
6420 - Telecommunications |
0.0442 | |
| WESTCHASE LIMITED |
WESTCHASE HOUSE BLINDMANS GATE, WOOLTON HILL NEWBURY BERKSHIRE RG20 9XB |
6420 - Telecommunications |
0.0442 | |
| VODAFONE LIMITED |
VODAFONE HOUSE THE CONNECTION NEWBURY BERKSHIRE RG14 2FN |
3220 - Manufacture TV transmitters, telephony etc. 6420 - Telecommunications |
0.0442 | |
| BNP PARIBAS NET LIMITED |
10 HAREWOOD AVENUE LONDON NW1 6AA |
0.0441 | ||
| WIZANER LIMITED |
61 CHARLOTTE STREET BIRMINGHAM WEST MIDLANDS B3 1PX |
6420 - Telecommunications 7222 - Other software consultancy and supply |
0.0441 | |
| EASTERN TELEGRAPH COMPANY LIMITED(THE) |
3RD FLOOR 26 RED LION SQUARE LONDON WC1R 4HQ |
0.0441 | ||
| NTL MIDLANDS LIMITED |
MEDIA HOUSE BARTLEY WOOD BUSINESS PARK HOOK HAMPSHIRE RG27 9UP |
6420 - Telecommunications 7260 - Other computer related activities 9220 - Radio and television activities |
0.044 | |
| PEOPLES PHONE LIMITED |
VODAFONE HOUSE THE CONNECTION NEWBURY BERKSHIRE RG14 2FN |
6420 - Telecommunications |
0.044 | |
| MARK FORSTATER PRODUCTIONS LIMITED |
11 KESLAKE ROAD LONDON NW6 6DJ |
6420 - Telecommunications 9231 - Artistic & literary creation |
0.044 | |
| HARRIS SYSTEMS LIMITED |
1010 ESKDALE ROAD WINNERSH WOKINGHAM BERKSHIRE ENGLAND RG41 5TS |
0.044 | ||
| VANCO UK LIMITED |
UNITS 1 & 2 GREAT WEST PLAZA RIVERBANK WAY BRENTFORD MIDDLESEX TW8 9RE |
6420 - Telecommunications |
0.044 | |
| MOCO COMMUNICATIONS LIMITED |
ISIS HOUSE, 52-54 RIVERSIDE ESTATE, SIR THOMAS LONGLEY ROAD ROCHESTER KENT ME2 4DP |
5190 - Other wholesale 6420 - Telecommunications |
0.044 | |
| DMR LIMITED |
DMR HOUSE 8-10 CLEAVE AVENUE FARNBOROUGH KENT BR6 7DR |
0.044 | ||
| UNITED NETWORK SOLUTIONS LIMITED |
TELE HOUSE BOREHAMWOOD ENTERPRISE PARK THEOBALD STREET BOREHAMWOOD HERTFORDSHIRE WD6 4RJ |
6420 - Telecommunications |
0.0439 | |
| RDK EMPRISE LIMITED |
THE KINGS OXLYNCH STONEHOUSE GLOS GL10 3DE |
6220 - Non-scheduled air transport 6420 - Telecommunications |
0.0439 | |
| SHIELDS ENVIRONMENTAL GROUP PLC |
KERRY AVENUE PURFLEET INDUSTRIAL PARK SOUTH OCKENDON ESSEX RM15 4YE |
6420 - Telecommunications 7415 - Holding Companies including Head Offices 9305 - Other service activities |
0.0439 | |
| NTL CABLECOMMS STOCKPORT |
MEDIA HOUSE BARTLEY WOOD BUSINESS PARK HOOK HAMPSHIRE RG27 9UP |
6420 - Telecommunications 7260 - Other computer related activities 9220 - Radio and television activities |
0.0439 | |
| RAUCH INTERNATIONAL LIMITED |
160 GUNNERSBURY LANE LONDON W3 9BB |
6420 - Telecommunications 7222 - Other software consultancy and supply |
0.0439 | |
| SKYFORCE LIMITED |
7 GROVE WAY MANSFIELD WOODHOUSE NOTTINGHAMSHIRE NG19 8BW |
6420 - Telecommunications |
0.0439 | |
| TAKERAK LIMITED |
81 SEAFORD RD LONDON N15 5DX |
6420 - Telecommunications 9231 - Artistic & literary creation |
0.0439 | |
| HUTCHISON GATEWAY LIMITED |
HUTCHISON HOUSE 5 HESTER ROAD BATTERSEA LONDON SW11 4AN |
0.0439 | ||
| CABLE AND WIRELESS (WEST INDIES) LIMITED |
3RD FLOOR 26 RED LION SQUARE LONDON WC1R 4HQ |
0.0439 | ||
| PORTA SYSTEMS LIMITED |
SOUTH MARCH LONG MARCH INDUSTRIAL ESTATE DAVENTRY NORTHANTS NN11 4PH |
6420 - Telecommunications |
0.0439 | |
| ANDREW WIRELESS SYSTEMS UK LIMITED |
100 NEW BRIDGE STREET LONDON EC4V 6JA |
0.0439 | ||
| CAPRICORN CONSULTANTS LIMITED |
4 BROUGHTON ROAD IPSWICH SUFFOLK IP1 3QR |
0.0439 | ||
| WESTBAY ENGINEERS LIMITED |
21 PAGEWOOD CLOSE MAIDENBOWER CRAWLEY WEST SUSSEX UNITED KINGDOM RH10 7ZL |
6420 - Telecommunications 7430 - Technical testing and analysis |
0.0438 | |
| AL-SHIRKATUL ISLAMIYYAH |
22 DEER PARK ROAD LONDON SW19 3TL |
0.0438 | ||
| BT (CBP) LIMITED |
1 MORE LONDON PLACE LONDON SE1 2AF |
6420 - Telecommunications |
0.0438 | |
| ENERGIS COMMUNICATIONS LIMITED |
VODAFONE HOUSE THE CONNECTION NEWBURY BERKSHIRE UNITED KINGDOM RG14 2FN |
0.0438 | ||
| EUROMAST SYSTEMS LIMITED |
147A HIGH STREET WALTHAM CROSS HERTFORDSHIRE EN8 7AP |
0.0438 | ||
| INTERCITY TELECOM LIMITED |
101-114 HOLLOWAY HEAD BIRMINGHAM WEST MIDLANDS B1 1QP |
6420 - Telecommunications |
0.0438 | |
| RACAL ANTENNAS LIMITED |
BROOK ROAD WIMBORNE DORSET BH21 2BJ |
6420 - Telecommunications |
0.0438 | |
| AMBEX LIMITED |
UNIT 2 THE BYRES WELLINGHAM LANE RINGMER LEWES EAST SUSSEX UNITED KINGDOM BN8 5SN |
0.0437 | ||
| VODAFONE MULTIMEDIA LIMITED |
VODAFONE HOUSE THE CONNECTION NEWBURY BERKSHIRE RG14 2FN |
6420 - Telecommunications 7487 - Other business activities |
0.0437 | |
| ALCATEL-LUCENT SUBMARINE NETWORKS LIMITED |
CHRISTCHURCH WAY GREENWICH LONDON SE10 0AG |
0.0437 | ||
| THE APP BUSINESS LIMITED |
20-22 BEDFORD ROW LONDON WC1R 4JS |
0.0437 | ||
| COLT TECHNOLOGY SERVICES |
BEAUFORT HOUSE 15 ST BOTOLPH STREET LONDON ENGLAND EC3A 7QN |
0.0437 | ||
| BT TELCONSULT LIMITED |
81 NEWGATE STREET LONDON EC1A 7AJ |
0.0437 | ||
| ENVIRONMENTAL MOBILE CONTROL LIMITED |
ONE WOOD STREET LONDON UNITED KINGDOM EC2V 7WS |
0.0417 |
| Level 1 |
Information and communication |
| Level 2 |
Telecommunications |
| Level 5 |
Wireless telecommunications activities Other telecommunications activities |