- Iberia Airlines - Spain
- Singapore Airlines - Singapore
- Alcatel – France, Germany, Spain, Italy, Belgium
- Ameritech – Chicago, Illinois
- Ericsson – Sweden
- KPN Telecom - Netherlands
- Nokia – USA, China, Canada, Finland, Denmark, Germany, England
- NYNEX – New York City, NY
- Motorola – United States
- Siemens – Worldwide
- Defense Science & Technology Agency – Ministry of Defense – Singapore
- Electronic Data Systems – England
- ERNI – Switzerland
- ILTAM Israel
- Korean IT Industry Agency
- Land Transportation Authority – Ministry of Transportations – Singapore
- Perot Systems - England
- Singapore Housing Development Board Information Systems – Singapore
- B-Systems (Formally Boss Lab) – Banking Software – Lugano, Switzerland
- Bank of Hapoalim – Israel
- Nationale Nederlanden – Rotterdam, Netherlands
- Postbank – Banking Software – Amsterdam, Netherlands
- Equitable of Iowa – Des Moines, Iowa
- ABB (Process Control Systems) – United States, Germany, Sweden, India
- Amdocs – Israel
- AVL Instrumentation Test Systems – Worldwide
- Bosch – Germany
- Honda of America – Detroit, Michigan
- Lockheed (Satellite Systems) – United States
- Phillips NV – Netherlands
- Tadiran Spectralink (Satellite Systems)
- Thomson Multi Media – Germany
- Toshiba – Japan
- Elbit – Israel
- General Dynamics C4 Systems (Satellite Systems) – Phoenix, Arizona
- Israel Aircraft Industries (IAI) – Israel
- Israel Defense Force (IDF) - Israel
- Israel MOD - Israel
- Rafael - Israel
- Texas Instruments – Houston, Texas
- Vestel - Turkey
- Institute Software Research International / Carnegie Mellon University – Pittsburgh, Pennsylvania
- Institute of Systems Science / National University of Singapore – Singapore
- Software Engineering Institute / Carnegie Mellon University – Pittsburgh, Pennsylvania
- Abacus Technology – Maryland
- Delta IT – Denmark
- Flobonart - Turkey
- Process Plus – Pennsylvania
- SPI Partners – Netherlands
- True Solutions Inc. – Texas
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