1. BAE Systems PLC
2. Blue Origin Enterprises
L.P.
3. Brahmos Aerospace Pvt. Ltd.
4. Calspan Corporation
5. Hermeus Corp.
6. Hypersonix Launch Systems Ltd.
7. Kratos Defense & Security Solutions Inc.
8. L3Harris Technologies Inc.
9. Leidos Inc.
10. Lockheed Martin Corporation
11. MBDA
12. Northrop Grumman Systems Corporation
13. Reaction Engines Ltd.
14. RTX Corporation
15. Saab AB
16. Space Exploration Technologies Corp.
17. Stratolaunch LLC
18. Tactical Missiles Corporation
19. Thales Group
20. The Boeing Company