1. ABB Asea Brown Boveri Ltd.
2. ANDRITZ AG
3. Anhuang Electric Power Technology Co.Ltd
4. Arcteq Relays Oy by Ensto Oy
5. ERLPhase Power Technologies Ltd.
6. General Electric Company
7. Hitachi Energy Ltd.
8. Ingeteam
S.A. by RES
9. Mitsubishi Electric Corporation
10. NR Electric Co. Ltd.
11. Schneider Electric
12. Schweitzer Engineering Laboratories Inc.
13. Siemens AG
14. TESCO - The Eastern Specialty Company
15. Toshiba Corporation
16. ZIV Aplicaciones y Tecnolog?a
S.L.