1. A^3 by Airbus LLC
2. BAE Systems PLC
3. Bell Textron Inc.
4. Honeywell International Inc.
5. Karem Aircraft Inc.
6. Leonardo S.p.A.
7. Lockheed Martin Corporation
8. Northrop Grumman Corporation
9. Overair Inc.
10. Textron Inc.
11. The Boeing Company
12. The General Electric Company