Accion Systems
Aerojet Rocketdyne
Airbus S.A.S
Ariane Group Gmbh
Blue Origin
IHI Corporation
Lockheed Martin
Mitsubishi Heavy Industries Ltd.
Northrop Grumman Corporation
OHB SE
Phase Four
Space Exploration Technologies Corp. (SpaceX)
Safran
Moog Inc.
Thales Group