1. Acciona
SA
2. Bechtel Corporation
3. Canyon Hydro
4. Centrais Eletricas Brasileiras SA
5. China Yangtze Power Co. Ltd.
6. General Electric Company
7. Gilbert
Gilkes & Gordon Ltd
8. Hitachi
Ltd.
9. Hydro-Quebec
10. Iberdrola
S.A.
11. Natel Energy Inc.
12. Schneider Electric SE
13. Siemens AG
14. Statkraft AS
15. Toshiba Corporation