| Organization | Country | Industry sector |
| 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 |
| Apollo Group | USA | Academic |
| Applied Research Lab/The Pennsylvania State University | USA | Academic |
| Applied Technology Solutions Inc. | USA | |
| Architecting-the-Enterprise | UK | IT - Consultants |
| ArchiXL | Netherlands | IT - Consultants |
| ARISMORE | France | |
| Armscor | South Africa | |
| Armstrong Process Group, Inc | USA | IT - System integrators |
| AstraZeneca | UK | Health Service |
| Austin Energy | USA | Energy & Utilities |
| Avolution | Australia | IT - Consultants |
| Bank Of America | USA | Financial Services |
| Bank of Montreal | Canada | Financial Services |
| BearingPoint, Inc. | USA | IT - Consultants |
| Biner Consulting | Sweden | IT - Consultants |
| BIZZdesign Holding | Netherlands | IT - Consultants |
| Bodø University College | Norway | Academic |
| Boehringer Ingelheim | USA | Health Service |
| BP Oil International Limited | UK | Energy & Utilities |
| British Telecom Plc | UK | Telecomms |
| Build the Vision Inc. | Canada | Enterprise Architecture Consultancy/Training |
| Business Connexion | South Africa | IT - Consultants |
| C&C Technology Ltd | UK | IT - Consultants |
| CA, Inc | Canada | IT - Software vendors |
| Capgemini | Netherlands | |
| Capita IT Services | UK | IT - System integrators |
| Casewise Systems Ltd | USA | 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 |
| Cognizant, CTS | India | IT - Consultants |
| Colorado Technical University | USA | Academic |
| Companhia Vale do Rio Doce | Brazil | Other sectors |
| Deccan Global Solutions LLC | USA | IT - Consultants |
| Deloitte Consulting, LLP | USA | IT - Consultants |
| Deparment for Children, Schools and Families | UK | Government - All others |
| Detecon International GmbH | Germany | IT - Consultants |
| Devoteam Consulting | | IT - Consultants |
| Digiterra (Pty) Ltd | South Africa | IT - Consultants |
| Discover Financial Services | USA | Financial Services |
| DMTF | USA | Consortia & Standards Bodies |
| DNV CIBIT | Netherlands | IT - Consultants |
| 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 |
| Edutech Enterprises | Singapore | Enterprise Architecture Consultancy/Training |
| Eli Lilly & Company Ltd | UK | |
| Elparazim | USA | IT - Consultants |
| Energistics | USA | Consortia & Standards Bodies |
| Enterprise Architects | UK | IT - Consultants |
| Enterprise Architects Pty Ltd | Australia | IT - Consultants |
| Equinox Limited | New Zealand | IT - Consultants |
| Ernst & Young | USA | Other sectors |
| Eskom | South Africa | Energy & Utilities |
| FEAC Institute | USA | Academic |
| Forefront Consulting Group AB | Sweden | IT - Consultants |
| France Telecom | France | Telecomms |
| Fujitsu Services | UK | IT - System integrators |
| Future Tech Systems, Inc | USA | IT - System integrators |
| Getronics | Netherlands | IT - Consultants |
| Grant MacEwan College | Canada | Academic |
| Heck Consulting | Germany | IT - Consultants |
| Hewlett-Packard | USA | |
| Hi-Q Systems Ltd | UK | IT - System & PC Vendors |
| Hornford Associates | Canada | IT - Consultants |
| Hotel Technology Next Generation | USA | Government - All others |
| HSBC Bank plc | Switzerland | Financial Services |
| IBM | USA | IT - System & PC Vendors |
| iCMG Private Limited | India | IT - Consultants |
| IDS Scheer AG | Netherlands | IT - Software vendors |
| Infosys Technologies Ltd | India | |
| Infovide S.A. | Poland | IT - Consultants |
| ING Group | Netherlands | Financial Services |
| Innenministerium NRW | Germany | Government - All others |
| Integration Consortium | UK | Consortia & Standards Bodies |
| Intel Corporation | USA | IT - System & PC Vendors |
| Intercall, Inc. | USA | Other sectors |
| Investec Limited South Africa | South Africa | Financial Services |
| ISES International B.V. | Netherlands | Enterprise Architecture Consultancy/Training |
| IT Frontier Corporation | Japan | IT - Consultants |
| Iwate Prefectural University | Japan | Academic |
| JISC | UK | Academic |
| Johnson & Johnson | USA | |
| Kamehameha Schools | USA | Academic |
| Knotion Consulting | South Africa | Enterprise Architecture Consultancy/Training |
| 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 | |
| Lockheed Martin Corporation | USA | Transportation |
| LoQutus | Belgium | IT - Consultants |
| Mainline Information Systems | USA | IT - System & PC Vendors |
| Marathon Oil Corporation | USA | Energy & Utilities |
| Marriott International | USA | Leisure |
| Massachusetts Institute of Technology - Lincoln Laboratory | USA | Academic |
| Mega International | France | |
| Meraka Institutue | South Africa | Government - All others |
| Metaplexity Associates | USA | IT - System integrators |
| Metastorm | USA | IT - Software vendors |
| MIC Business Solutions, Inc. | USA | IT - Consultants |
| Mizuho Information and Research Institute, Inc. | Japan | Other sectors |
| Model Driven Solutions | USA | |
| Molimax Consulting Limited | UK | IT - Consultants |
| 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, Institute of Systems Science | Singapore | Academic |
| NEC Corporation | Japan | IT - System & PC Vendors |
| Nedbank | South Africa | Financial Services |
| NEHTA | Australia | Health Service |
| Netsac S.A. | Colombia | IT - Consultants |
| 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 |
| OFFIS | Germany | IT - Consultants |
| 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 |
| Parity Training Limited | UK | IT - Consultants |
| plenum Management Consulting | Germany | IT - Consultants |
| PricewaterhouseCoopers LLP | South Africa | Financial Services |
| Procter & Gamble Company | USA | Manufacturing |
| Promis Solutions | South Africa | IT - Consultants |
| Q-Tips B.V. | Netherlands | IT - Consultants |
| Qernel nv | Belgium | Other sectors |
| 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 |
| Resultex Limited | New Zealand | IT - Consultants |
| Rococo Co Ltd | Japan | IT - Software vendors |
| Roehampton University | UK | Academic |
| Rolls-Royce plc | USA | Manufacturing |
| Royal Institute of Technology | Sweden | Academic |
| SAP | UK | IT - System integrators |
| SASOL | South Africa | Energy & Utilities |
| Satyam Computer Services, Limited | USA | IT - Consultants |
| SDT | South Africa | IT - Software vendors |
| Serono International SA | Switzerland | |
| Shenzhen Kingdee Middleware | China | IT - System integrators |
| Shift Technologies LLC | United Arab Emirates | IT - Consultants |
| SIF Association | USA | Consortia & Standards Bodies |
| 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 |
| Soluta.Net | Italy | IT - Consultants |
| Solvera Solutions | Canada | IT - Consultants |
| Sparx Systems | Australia | IT - Software vendors |
| State Information Technology Agency (Pty) Ltd | South Africa | Government - All others |
| Sun Microsystems | USA | IT - System & PC Vendors |
| Swiss Federal Administration | Switzerland | Government - Military |
| Systems Flow, Inc. | USA | IT - Consultants |
| t2b | Switzerland | Enterprise Architecture Consultancy/Training |
| Tata Consultancy Services | India | IT - Consultants |
| Teamcall Ltd | Belgium | IT - Software vendors |
| Telelogic | UK | IT - Software vendors |
| TeleManagement Forum | UK | Consortia & Standards Bodies |
| Telephone & Data Systems, Inc. | USA | Telecomms |
| Telkom SA Ltd | South Africa | Telecomms |
| The Boeing Company | USA | Manufacturing |
| The Capital Group Companies, Inc. | USA | Financial Services |
| The MITRE Corporation | USA | Other sectors |
| The Pennsylvania State University | USA | Academic |
| The Salamander Organization Limited | UK | Other sectors |
| The University of Reading | UK | Academic |
| TietoEnator Finland EA Consulting | Finland | IT - Consultants |
| 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 Colorado at Boulder | USA | Academic |
| University of Denver | USA | Academic |
| University of Johannesburg | South Africa | |
| University of Muenster | Germany | Academic |
| University of Pretoria | South Africa | Academic |
| University of South Africa | South Africa | Academic |
| University of Washington | USA | Academic |
| UPCO | UK | IT - System integrators |
| Van Haren Publishing | Netherlands | Retail & Distribution |
| Veriserve Corporation | Japan | |
| Wachovia Bank | USA | Financial Services |
| White Knight Management | UK | IT - Consultants |
| Wipro Technologies | India | IT - Software vendors |
| Xantus Consulting | UK | IT - Consultants |
| Zurcher Kantonalbank | Switzerland | Financial Services |
