- Alpine Technology
- American Telecommunications
- BAE Systems
- Briartek
- Brown Engineer Consultants
- Card Access Inc
- Card Access Inc
- Carl T Jones Corp
- Carolina Engineering Design
- Carolina Sound Communications
- Cavell Mertz & Davis Inc
- CIE Engineering Inc
- Communication Technologies Inc
- Compubotics
- Compubotics
- Conley & Assoc Inc
- Cygnetron Inc
- Design Resources Inc
- Digital Design
- DNB Engineering Inc
- Dsd Laboratory
- Electronics Research
- Electronics Research
- Entech Engineering Inc
- Entech Engineering Inc
- ETI Engineering
- EWA Government Systems Inc
- Express Imaging Systems Inc
- Express Imaging Systems Inc
- Gekco Inc
- Greenhorne & O'Mara Inc
- H D Laboratories Inc
- HMR Tech
- ILJ Corp
- Image Technology
- Infinetix Corp
- Kalow Technologies Inc
- L-3 Government Svc Inc
- Lecky Engineering
- Legacy Enterprises Inc
- Legacy Enterprises Inc
- Mac Donald Dettwiler Robotics
- Mac Donald Dettwiler Robotics
- Mc Coy Engineering Co
- Mc Coy Engineering Co
- Nikola Engineering
- Omni Measurements Systems Inc
- Pete Johnson
- Pete Johnson
- Plano Cad Engineering
- Point 1 Engineering
- Power Measurement USA
- Pro-Active Engineering Inc
- Processing Research Inc
- Purvis Systems Inc
- Pushcorp Inc
- R & R Electronic Development
- R F Innovations
- Rheintech Labs
- Salmon Bay Designs
- Sierra Nevada Corp
- Spectrum 5 Inc
- Spectrum 5 Inc
- Stat Tech Inc
- Syneren Technologies Corp
- Thomason Engineering
- Titan Automation
- Titan Automation
- Titan Unidyne Corp
- Triad Spectrum Inc
- Triad Spectrum Inc
- Unidyne Corp
- Westest Engineering Corp
- WORC Group
- X-Com
- Xytronix Research & Design
