- Airbus
- Boeing Commercial Airplane Group
- Bombardier
- Cessna Aircraft Co
- General Electric
- General Dynamics
- Hindustan Aeronautics
- Lockheed Martin
- North American Space Agency (NASA)
- Northrup Grumman
- Pratt & Whitney
- Raytheon
- ST Aerospace (Singapore)
- United Technologies Research Center
- US Federal Aviation Administration (FAA)
- US Air Force School of Aerospace Medicine
- Westar Aerospace
