1. A. Eberle GmbH & Co. KG
2. ABB Ltd.
3. AMETEK Inc.
4. Camlin Limited
5. Ducati Energia Spa
6. E-MAX Instruments
Incorporated
7. Elspec Engineering ltd.
8. ERLPhase Power Technologies Ltd.
9. General Electric Company
10. HV Hipot Electric Co. Ltd.
11. K&S Engineering and Scientific Ltd
12. KINKEI SYSTEM CORPORATION
13. KoCoS Messtechnik AG
14. LogicLab s.r.l.
15. Mehta Tech Inc.
16. NR Electric Co. Ltd.
17. Qualitrol
18. Schneider Electric SE
19. Schweitzer Engineering Laboratories Inc.
20. SecuControl Inc.
21. Siemens AG
22. Utility Systems Inc.
23. Yokogawa Electric Corporation
24. Zensol Automation Inc.