Broadcast & Communications
- Arqiva
- Cable and Wireless
- IPWireless
- Nortel
- Tandberg
Public Sector
- BancTec
- Cabinet Office
- Coal Authority
- Countryside Council for Wales
- Department for Education and Skills
- Department for Constitutional Affairs / Ministry of Justice
- Department of Trade and Industry
- Department for Work and Pensions
- Devon County Council
- Environment Agency
- Foreign and Commonwealth Office
- Hampshire County Council
- Home Office
- Irish Environmental Protection Agency
- Local Better Regulation Office
- Meteorological Office
- National Audit Office
- Office for National Statistics
- Ofsted
- Ofwat
- Scottish Environment Protection Agency
- South West e-Government Group
- Thames Water
- The National Archives
- Treasury Solicitors
- UK Debt Management Office
- UK Trade & Investments
Defence
- AgustaWestland
- BAE Systems
- British Army
- DAES
- DE&S
- DCSA
- Defence Estates
- DSTL
- EDS
- Fujitsu
- Lockheed Martin
- Ministry of Defence
- Prodrive
- QinetiQ
- Raytheon
- Roke Manor
- Royal Navy
- Royal Dutch Navy
- RNLI
- SSMG
- Thales
Space
- Avanti
- Carlo Gavazzi Space
- EADS Casa
- EADS Astrium Friedrichshafen
- EADS Astrium Toulouse
- EADS Astrium UK
- Elsag-Datamat
- EUMETSAT
- European Space Agency
- Eutelsat
- Indra
- OHB
- QinetiQ
- SEA
- Surrey Satellite Technology Ltd
- Telespazio
- Thales Alenia Space France
- Thales Alenia Space Italy
- UK Space Agency
Media
- British Broadcasting Corporation
- Deutschlandradio
- Mitteldeutscher Rundfunk
- Norddeutscher Rundfunk
- Radio Bremen
- Westdeutscher Rundfunk
- AZ Media
- Radio Kielce, Lodz, eM (Poland)
- Vlaamse Radio- en Televisieomroep (Belgium)
- Rikisutvarpio (Iceland)
- Voice of Vietnam (Vietnam)
Support
- Arqiva
- Cable&Wireless SNEN
- EDF Energy
- Environment Agency
- Essex & Suffolk Water
- Parliamentary ICT (House of Commons)
- TfL - London Bus Services and Public Carriage Office
- The National Archives
- UK Government Knowledge Network
Transport
- Cubic Transportation Systems
- Infraco JNP & Infraco SSL
- London Underground
- Network Rail
- Parsons Brinckerhoff
- Public Carriage Office
- Transport for London
- Westinghouse Rail
Other
Gladstone ~ Julian Hodge Bank ~ LFEPA ~ STS ~ Study Group International ~ University of Manchester ~ Wincor Nixdorf
