| Allied Signal | Analog devices Semiconductor Division | Arizona Public Service |
| Baltimore Gas & Electric | Bechtel Power Corporation | Bentley Nevada Corporation |
| Bourns, Inc. | Breed Technologies, Inc. | David Taylor Research Center |
| Dytran Instruments | Endevco | Endevco Vertriebs GmbH |
| Ford Motor Company | GEC/Marconi Electric Systems | General Dynamics-Electric Boat Division |
| Hewlett-Packard | Honeywell, Inc. | Hughes Aircraft |
| Hydra-Electric Company | IBM | ITT Gilfillan |
| Kearfott Guidance & Navigation Corporation | Kistler instrument Corporation | Lockheed Martin - Electro Optical Systems |
| McDonnell Douglas | National Technical Systems | Naval Air Station Test Center |
| Navy Primary Standard Labs | Northrop/Grumman Marine Systems | Solar Turbines, Inc. |
| Southern California Edison | Sundstrand Aviation Aerospace | Sundstrand Power Systems |
| Teledyne Inet. | Thiokol Corporation | Trident Refit Facility, Naval Submarine Base |
| Washington Public Power Supply Systems | Wyle Labs |