1. ABB Ltd.
2. Alstom SA
3. American Superconductor
4. Emergya Wind Technologies B.V.
5. Enercon GmbH
6. GENERAL ELECTRIC
7. Goldwind Americas
8. Lagerwey Group B.V.
9. Leitwind AG
10. Northern Power Systems
11. Qingdao Hengfeng Wind Power Generator Co.Ltd
12. ReGen Powertech Pvt. Ltd.
13. Siemens AG
14. Siemens Gamesa Renewable Energy SA
15. Vensys Energy AG
16. Windtronics LLC
17. XEMC Darwind BV