1. ABB Ltd.
2. Beijing Power Equipment Group Co. Ltd.
3. CG Power and Industrial Solutions Limited
4. Elgin Power Solutions
5. ENTES Elektronik Cihazlar ?malat ve Ticaret A.?.
6. Faramax International GmbH
7. Fuji Electric Co. Ltd.
8. GBE SpA
9. General Electric Company
10. Getra Power S.P.A.
11. Hilkar
12. Hitachi Ltd.
13. Hyosung Coporation
14. Iljin Group
15. Jiangshan Scotech Electrical Co.Ltd
16. JSC SVEL Group
17. Kalentel Energy Telecom
18. Meidensha Corporation
19. Mitsubishi Electric Corporation
20. Ningbo Zhongce E.T Electronics Co. Ltd.
21. Nissin Electric Co. Ltd.
22. Phoenix Electric Corp.
23. S.E.A. Societ? Elettromeccanica Arzignanese S.p.A.
24. SGB-SMIT GmbH
25. Shrihans Electricals Pvt. Ltd.
26. Siemens AG
27. Tamura Electronics (M) Sdn. Bhd.
28. Toshiba Corporation
29. Transformers Manufacturing Company Pty Ltd.
30. WEG S.A.
31. Zaporozhtransformator PrJSC