1. Aeros
2. Airborne Industries Inc.
3. BASI Group
4. CargoLifter GmbH & Co. KG
5. Gefa-Flug GmbH
6. Goodyear Tire & Rubber Company
7. Hybrid Air Vehicles Ltd.
8. Kubicek Factory s.r.o.
9. Lindstrand Technologies Limited
10. Lockheed Martin Corporation
11. RosAeroSystems s.r.a.
12. Skyship Services Inc.
13. Straightline Aviation Limited
14. Vantage Airship Co. Ltd.
15. Varialift Airships PLC