1. ABB Ltd.
2. Alstom SA
3. Bharat Bijlee Limited
4. Celme S.r.l.
5. CG Power & Industrial Solutions Ltd.
6. DAIHEN Corporation
7. General Electric Company
8. Hammond Power Solutions Inc.
9. Hitachi Ltd.
10. Hyosung Group
11. HYUNDAI ELECTRIC & ENERGY SYSTEMS CO. LTD.
12. Kirloskar Electric Company Ltd.
13. Mitsubishi Electric Corporation
14. Schneider Electric SE
15. SGB-SMIT GmbH
16. Siemens AG