Aviation and defense testing companies
- Air USA
- ATK - ALLIANT TECH SYS INC
- BAE Industries
- Battelle
- Bell Helicopters
- Boeing Helicopters
- Boeing/MCAIR
- Honeywell Systems
- NASA
- Raytheon
- TRAX International
- General Atomics Aeronautical Systems
- Systima Technologies
- Defense Advanced Research Projects Agency
- Lockheed Martin
- Million Air - Yuma
- Northrup Grumman
- Rolls Royce (NATEC)
- Schweizer
- Sikorsky
- United Space Alliance
- NAVMAR
- AAI Textron
- Airborne Systems Microfly
- Moog Inc.
- Wescam