| Abatis | Atkins |
| ATM Strategies | Austen Consultancy Services |
| AWE plc | BAE Systems |
| BAE Systems – Mission Systems | BAE Systems Advanced Technology Centre |
| Bill Robins Ltd. | BORO Solutions (x3) |
| British Army HQ – Information Management | British Army HQ ICS Ops (x2) |
| Combitech AB | Cranfield Defence & Security (x2) |
| Danish Defence – DALO | Danish Defence IT- Agency |
| Defence Academy- College of Management & Technology | DSTL |
| DSTL – Information Management Department (x3) | DSTL – Joint Systems Department |
| EADS – CASSIDIAN | European Defence Agency [TBC] |
| European Space Agency | Frankie Jefferies Ltd. |
| Front End Strategy AB | GCHQ |
| Generic Systems AB (x3) | Glue Reply |
| HP | Information Junction |
| JCSys Ltd | Lockheed Martin UK (x2) |
| Lockheed Martin UK Ampthill (x2) | Logica |
| M3D Consulting | Mega |
| Ministry of Defence, Singapore (x3) | MooD International |
| NATO C3 Agency | Niteworks (x5) |
| Roke Manor Research Ltd | RUAG Defence (x2) |
| SCS | Selex Galileo |
| Software AG | Swedish Armed Forces |
| Swedish Defence Material Administration | Swiss Armed Forces |
| SyntheSys | Systems Engineering & Assessment Ltd (SEA) |
| Team Ensure (x2) | Tetradian Consulting |
| UK Met Office (x2) | UK MOD – ACDS (Log Ops) |
| UK MOD – Cap CCII | UK MOD – Cap ISTAR DPD Plans |
| UK MOD – CIO-Info Stds & Policy | UK MOD – CIO-ISP (x3) |
| UK MOD – CIO-ISP-Policy | UK MOD – DE&S ISS Progs |
| UK MOD – JMOD | UK MOD – KSA |
| UK MOD – Land ISTAR, TD, PTG, DE&S | UK MOD – Network Technical Authority |
| UK MOD – Network Technical Authority (x3) | UK MOD – SEIG (x2) |
| UK MOD DE&S Weapons Operating Centre | UK MOD Log NEC Strategy & Architecture |
| UKCEB | US DoD Business Mission Area |
| Vega |
| 42 SBS | Accenture |
| ACPO | Agilit Ltd. |
| Alfabet | Artisan Software |
| Atego | Atkins |
| Austen Consultancy Services Ltd | Australian Department of Defence |
| Babcock Marine | BAE Systems |
| Ball Aerospace | BMT Defence Services |
| BMT Hi-Q Sigma | Boeing |
| Booz | Allen | Hamilton | BORO Centre |
| British Army – CSD Applications | Celestial Consulting Ltd. |
| CentreData Ltd. | Centric Labs |
| Cisco Systems | Combitech |
| Cornwell Business Consultants | Cranfield University |
| CSD Apps (UK MOD) | D Solutions (UK MOD) |
| Danish Defence IT Agency | Defence College of Management & Technology |
| Defence Command Denmark | Defence Geographic Centre |
| Deloitte | Dept National Defence, Canada |
| Detica | DSTA Singapore |
| DSTL | Durham University |
| EADS | EAI NEC Centre of Excellence |
| Eclectica Systems Ltd. | Eurostep |
| Front End Strategy | Frontis Group |
| Frontwalker | Fujitsu |
| Fujitsu Services | Gatehouse |
| GCHQ | General Dynamics UK |
| Generic Systems AB | German Airforce |
| German Army | Glue Reply |
| Harding Hall Ltd. | Harmonic Limited |
| Helyx SIS Ltd. | Home Office (UK Govt) |
| IBM Australia | IBM Japan |
| IBM Norway | IBM Sweden |
| IBM UK | IBM US |
| ICAD (UK MOD) | Imminent Concepts AB |
| Information Junction Ltd | Italian MOD |
| JCSys Ltd | Jotne EPM Technology AS |
| Kennedy Carter | Knowledge Agency |
| Leeds University | Lockheed Martin |
| Lockheed Martin IS&S | Log Ops Pol (UK MOD) |
| Logica | LSC Group |
| MEGA International | Ministry of Defence, Singapore |
| MOD CIO EA Team | Montvieux Ltd. |
| NATS | Niteworks |
| Norwegian Armed Forces CIS Centre | Norwegian Defence |
| Norwegian Defence Research Establishment | PA Consulting |
| QinetiQ | Quintec |
| Raytheon Systems Limited | Reflex Media |
| Roke Manor Research | Ruag Electronics |
| Salamander | Sanne Consulting AB |
| SCS | SELEX Galileo |
| Selex-SI | Serco Consulting |
| Sibeh Consulting | Silver Bullet Solutions, Inc. |
| Singapore Air Force CIO Office | small-e limited |
| Steria | Sula Systems Limited |
| Sun Microsystems | Sussex University |
| Swedish Armed Forces | Swedish Defence Materiel Administration (FMV) |
| Systems Consultants Services Ltd | Systems Engineering Innovation Centre |
| Thales UK | The Open Group |
| Through Life Support Directorate (UK MOD) | UK MOD CAP CCII |
| UK MOD CAP ISTAR | UK MOD CIO EA |
| UK MOD DCTO | UK MOD ICAD |
| UK MOD Log Ops | UK MOD RN Command HQ |
| UK MOD SEIG | UK MOD SOSA Team |
| UK MOD SVPA | UKCEB |
| Ultra Electronics | US DoD (OASD DCIO) |
| US DoD CIO | VEGA Consulting Services Ltd |
| Zachman International |
