1. Airbus SE
2. Bell Textron Inc. by Textron Inc.
3. Collins Aerospace
4. Columbia Helicopters
LLC
5. Enstrom Helicopter Corporation
6. HELICOPTERES GUIMBAL
7. Hiller Aircraft Corporation
8. Hindustan Aeronautics Limited
9. KAI KOREA AEROSPACE INDUSTRIES
LTD.
10. Kaman Corporation
11. Karem Aircraft Inc.
12. Kawasaki Heavy Industries
Ltd.
13. Leonardo S.p.A.
14. Lockheed Martin Corporation
15. MD HELICOPTERS LLC
16. Mitsubishi Heavy Industries
Ltd.
17. Robinson Helicopter Company
18. Rotor X Aircraft
19. Russian Helicopters JSC
20. Savback Helicopters
21. Schweizer
22. Subaru Corporation
23. The Boeing Company