1. Arani Power Systems
2. Bharat Heavy Electricals Limited
3. Chola Turbo Machinery International Pvt. Ltd.
4. Dongfang Electric Corporation
5. Doosan ?koda Power
6. Elliott Group
7. Emerson Electric Co.
8. General Electric Co.
9. Harbin Electric Machinery Co. Ltd.
10. Mitsubishi Hitachi Power Systems Americas Inc.
11. Sande Stahlguss GmbH
12. Siemens AG
13. Toshiba Corporation
14. Turbine Generator Maintenance Inc.
15. Turbocam