Aeritalia, S.A.I.p.A.
Aeronautical Systems Div., USAF
Air Force Flight Test Center
Anderson, Greenwood, & Company
Avco Lycoming Division
Beech Aircraft Corporation
Bell Helicopter Textron Research
The Boeing Company
Brunswick Corporation, Defense Division
Canadair, Ltd.
Chung Shan Institute, Taiwan
de Havilland Aircraft of Canada Ltd.
Fairchild Industries, Inc.
Fiat Aviazione S.p.A.
Ford Aerospace & Communications Corp.
General Dynamics Convair Division
General Dynamics Space Systems Division
General Electric
Gulfstream Aerospace Corp.
Government of Israel, Defense Ministry
Hughes Aircraft Industries, Ltd.
Israel Aircraft Industries, Ltd.
Lawrence Berkeley Laboratory
Learjet Industries, Inc.
Lockheed-California Company
Los Alamos National Laboratory
Menasco Aerospace, Ltd.
Mitsubishi Heavy Industries
NASA Ames Research Center
NASA Marshall Space Flight Center
Nagoya Aircraft Works, Japan
National Waterways Experiment Station
National Bureau of Standards
Naval Air Engineering Center
Nippon Aircraft Co., Ltd.
Piper Aircraft Corporation
Rinaldo Piaggio S.p.A.
Rockwell Rocketdyne Div.
Rockwell Space Systems Group
Sargent Fletcher Company
Space General Corporation
Space Technology Laboratories
Teledyne Ryan Aeronautical
University of New Mexico
University of Toronto
Allied Signal
Allison Gas Turbine
American Aviation Company
Army Redstone Arsenal
Ball Aerospace Systems Division
Bendix Aerospace, Ltd.
Boeing Commercial Airplane Company
Bristol Aerospace, Ltd. 
Cessna Aircraft Company
Chrysler Corporation
Dayton T. Brown
EDO Corporation
Federal Highway Administration
General Dynamics, Pomona Division
General Motors Corp. Allison Division
Grumman Aerospace Corp.
Hercules Aerospace Company
Jet Propulsion Laboratory
Kawasaki Heavy Industries
Kyushu University
Lawrence Livermore Laboratory
Lockheed-Georgia Company
LTV Aerospace Corporation
Martin Marietta Denver Aerospace Division
McDonnell Douglas Corp.
NASA Lewis Research Center
National Astro Lab, Inc.
Naval Air Development Center
Northrup Corporation
Oxford Trading Corp.
Raymond G. Osborne Laboratories
Pratt & Whitney
Rockwell Energy Systems Group
Rohr Industries, Inc.
Sandia National Laboratories
Sikorsky-United Technologies
Swearingen Labs
TRW, Inc.
Technical Research Institute, Japan
United Aircraft of Canada, Ltd.
University of Texas
Weber Aircraft
Yonei Trading Co., Ltd.
Westinghouse Astronuclear Lab