| Organization | Country | Industry sector |
| Aalders Analysis & Design Pty Ltd | Australia | IT - Consultants |
| ABIO BV | Netherlands | IT - Consultants |
| Accenture | USA | IT - Consultants |
| ACORD Corporation | USA | Other sectors |
| act! consulting GmbH | Germany | IT - Consultants |
| ADP, Inc. | USA | Other sectors |
| AIPEX Pty Ltd | Australia | IT - Consultants |
| alfabet AG | Germany | IT - Consultants |
| Allied Irish Bank | Ireland | Financial Services |
| American Express | USA | Financial Services |
| Analytix Holdings LTD | South Africa | Enterprise Architecture Consultancy/Training |
| Applied Research Lab/The Pennsylvania State University | USA | Academic |
| Applied Technology Solutions Inc. | USA | |
| Architecting-the-Enterprise | UK | IT - Consultants |
| ARISMORE | France | |
| Armscor | South Africa | |
| Armstrong Process Group, Inc | USA | IT - System integrators |
| Austin Energy | USA | Energy & Utilities |
| Avolution | Australia | IT - Consultants |
| Bank of Montreal | Canada | Financial Services |
| BEA Systems Inc. | USA | IT - System integrators |
| BeAligned CVBA | Belgium | IT - Consultants |
| BearingPoint, Inc. | USA | IT - Consultants |
| BIZZdesign Holding | Netherlands | IT - Consultants |
| Boehringer Ingelheim | USA | Health Service |
| BP International | UK | |
| British Telecom Plc | UK | Telecomms |
| Business Connexion | South Africa | IT - Consultants |
| C&C Technology Ltd | UK | IT - Consultants |
| CA, Inc | USA | IT - Software vendors |
| Capgemini S.A. | France | |
| Capita IT Services | UK | IT - System integrators |
| Cardiff University | UK | Academic |
| Casewise Systems Ltd | UK | IT - Software vendors |
| CC and C Solutions | Australia | IT - Consultants |
| CEISAR | France | Academic |
| Celestial Consulting Ltd | UK | IT - Consultants |
| Centre for Open Systems | Australia | Consortia & Standards Bodies |
| CGI Group Inc. | Canada | |
| Cisco Systems, Inc. | USA | |
| CLARS Limited | UK | IT - Consultants |
| Companhia Vale do Rio Doce | Brazil | Other sectors |
| Deccan Global Solutions LLC | USA | IT - Consultants |
| Deloitte Consulting, LLP | USA | IT - Consultants |
| Detecon International GmbH | Germany | IT - Consultants |
| Devoteam Consulting | Denmark | IT - Consultants |
| Digiterra (Pty) Ltd | South Africa | IT - Consultants |
| DMTF | USA | Consortia & Standards Bodies |
| DWP Programme & Systems Delivery Group | UK | Government - All others |
| EA Global Ltd | UK | IT - Consultants |
| EASD-CIOB (Treasury Board of Canada Secretariat) | Canada | Government - All others |
| EDS | USA | IT - System integrators |
| Elegant Group | Netherlands | IT - Consultants |
| Eli Lilly & Company Ltd | UK | |
| Elparazim | USA | IT - Consultants |
| Energistics | USA | Consortia & Standards Bodies |
| Enterprise Architects | UK | IT - Consultants |
| Equinox Limited | New Zealand | IT - Consultants |
| Eskom | South Africa | Energy & Utilities |
| Fannie Mae Corporation | USA | Financial Services |
| Flashmap Systems, Inc. | USA | IT - System integrators |
| Focus on the Family | USA | Other sectors |
| France Telecom | France | Telecomms |
| Fundani Computer Sytems (PTY) Ltd | South Africa | IT - System integrators |
| Future Tech Systems, Inc | USA | IT - System integrators |
| Getronics | Netherlands | IT - Consultants |
| Grant MacEwan College | Canada | Academic |
| Griffiths Waite | UK | IT - Consultants |
| GTECH Corporation | USA | Retail & Distribution |
| Heck Consulting | Germany | IT - Consultants |
| Hewlett-Packard | USA | |
| Hi-Q Systems Ltd | UK | IT - System & PC Vendors |
| Highmark Inc. | USA | Health Service |
| Hornford Associates | Canada | IT - Consultants |
| Hotel Technology Next Generation | USA | Government - All others |
| HSBC Bank plc | UK | Financial Services |
| IBM | USA | IT - System & PC Vendors |
| ICMG Private Limited | India | IT - Consultants |
| IDS Scheer AG | Germany | IT - Software vendors |
| Infosys Technologies Ltd | India | |
| Infovide S.A. | Poland | IT - Consultants |
| Innenministerium NRW | Germany | Government - All others |
| Inspired | South Africa | IT - Consultants |
| Integration Consortium | Canada | Consortia & Standards Bodies |
| Intercall, Inc. | USA | Other sectors |
| Investec Limited South Africa | South Africa | Financial Services |
| IT Advisor Inc. | Canada | IT - Consultants |
| Iwate Prefectural University | Japan | Academic |
| JISC | UK | Academic |
| Johnson & Johnson | USA | |
| King's College London | UK | Academic |
| Knotion Consulting | South Africa | Enterprise Architecture Consultancy/Training |
| Kynetia Networks S.L. | Spain | IT - System integrators |
| Kyoto University | Japan | Academic |
| La Poste | France | Other sectors |
| Lawrence Technological University | USA | Academic |
| Learning and Skills Council | UK | Government - All others |
| Letsema Consulting | South Africa | |
| Liverpool John Moores University | UK | Academic |
| Lockheed Martin Corporation | USA | Transportation |
| Mantix Limited | UK | IT - Consultants |
| Marathon Oil Corporation | USA | Energy & Utilities |
| Marriott International | USA | Leisure |
| Massachusetts Institute of Technology - Lincoln Laboratory | USA | Academic |
| Mega International | UK | |
| Metaplexity Associates | USA | IT - System integrators |
| Metastorm | USA | IT - Software vendors |
| Mitsubishi Corporation | Japan | Other sectors |
| Mizuho Information and Research Institute, Inc. | Japan | Other sectors |
| Model Driven Solutions | USA | |
| N2 Services, Inc. | USA | Consortia & Standards Bodies |
| NASA SEWP (Sci. & Eng. Workstation Procurement) | USA | Government - All others |
| National Computerization Agency | South Korea | Government - All others |
| National IT and Telecom Agency, IT-Architecture Division | Denmark | Government - All others |
| National University of Singapore | Singapore | Academic |
| NEC Corporation | Japan | IT - System & PC Vendors |
| NEHTA | Australia | Health Service |
| Nissan Motor Co., Ltd. | Japan | Manufacturing |
| Nomura Research Institute, Ltd. | Japan | IT - Consultants |
| NTNU | Norway | Academic |
| NTT Data Corporation | Japan | IT - Software vendors |
| NYS Office of Temporary & Disability Assistance | USA | Government - All others |
| OMG | USA | Consortia & Standards Bodies |
| Online Business Systems | Canada | IT - Consultants |
| Open GIS Consortium, Inc. | USA | Consortia & Standards Bodies |
| Orbus Software | UK | IT - Software vendors |
| Oslo Software | France | IT - Software vendors |
| Parity Training Limited | UK | IT - Consultants |
| PricewaterhouseCoopers LLP | UK | Financial Services |
| Procter & Gamble Company | USA | Manufacturing |
| Q-Tips B.V. | Netherlands | IT - Consultants |
| QR Systems Inc | Canada | |
| QualiWare ApS | Denmark | IT - System & PC Vendors |
| Raytheon | USA | |
| Real IRM Solutions (Pty) Ltd | South Africa | Enterprise Architecture Consultancy/Training |
| Research Environment for Global Information Society, ReGIS | Japan | IT - Consultants |
| Resilience Corporation | USA | Other sectors |
| Rococo Co Ltd | Japan | IT - Software vendors |
| Rolls-Royce plc | UK | Manufacturing |
| Royal Institute of Technology | Sweden | Academic |
| SAP | Israel | IT - System integrators |
| SASOL | South Africa | Energy & Utilities |
| Satyam Computer Services, Limited | India | IT - Consultants |
| SCC - Specialist Computer Centres | UK | IT - System integrators |
| Schools Interoperability Framework Association | USA | Consortia & Standards Bodies |
| Serono International SA | Switzerland | |
| Shenzhen Kingdee Middleware | China | IT - System integrators |
| Shift Technologies | United Arab Emirates | IT - Consultants |
| SIOS Technology, Inc. | Japan | IT - System integrators |
| Smart421 Ltd | UK | IT - System integrators |
| SNA Technologies Inc. | USA | IT - Consultants |
| Sogeti S.A.S. | Netherlands | IT - Consultants |
| Solvera Solutions | Canada | IT - Consultants |
| Sparx Systems | Australia | IT - Software vendors |
| State Services Commission | New Zealand | Government - All others |
| Sun Microsystems | USA | IT - System & PC Vendors |
| Swiss Federal Administration | Switzerland | Government - Military |
| Symantec Corp | USA | IT - System integrators |
| Systems Flow, Inc. | USA | IT - Consultants |
| t2b | Switzerland | Enterprise Architecture Consultancy/Training |
| Tata Consultancy Services | India | IT - Consultants |
| Teamcall Ltd | UK | IT - Software vendors |
| Telelogic | Sweden | IT - Software vendors |
| TeleManagement Forum | UK | Consortia & Standards Bodies |
| Telephone & Data Systems, Inc. | USA | Telecomms |
| Telkom SA Ltd | South Africa | Telecomms |
| TenFold, Inc. | USA | IT - Software vendors |
| The Boeing Company | USA | Manufacturing |
| The MITRE Corporation | USA | Other sectors |
| The Salamander Organization Limited | UK | Other sectors |
| The University of Reading | UK | Academic |
| Tieturi OY | Finland | Enterprise Architecture Consultancy/Training |
| TONEX | USA | Other sectors |
| Toyota InfoTechnology Center, Co., Ltd. | Japan | Manufacturing |
| triVector (Pty) Ltd | South Africa | IT - Consultants |
| Troux Technologies AS | Norway | IT - Software vendors |
| Tshwane University of Technology | South Africa | Academic |
| TSYS | USA | Other sectors |
| UK MoD | UK | Government - Military |
| Unisys | USA | Other sectors |
| University of Cambridge | UK | Academic |
| University of Colorado at Boulder | USA | Academic |
| University of Denver | USA | Academic |
| University of Johannesburg | South Africa | |
| University of Pretoria | South Africa | Academic |
| Veriserve Corporation | Japan | |
| Wachovia Bank | USA | Other sectors |
| White Knight Management | UK | IT - Consultants |
| Wipro Technologies | India | IT - Software vendors |
| Xantus Consulting | UK | IT - Consultants |
