1. ABB Ltd.
2. Baker Hughes Company
3. Camlin Ltd.
4. Eaton Corporation PLC.
5. Emerson Electric Co.
6. ESCO Technologies
7. General Electric Company
8. HIOTRON
9. Hitachi Limited
10. Honeywell International Inc.
11. Kirloskar Electric Company Limited
12. KJ Dynatech Inc.
13. KRYFS Power Components Ltd.
14. M B Control & Systems Pvt Ltd.
15. Maschinenfabrik Reinhausen GmbH.
16. Megger Group Limited
17. MISTRAS Group
18. Mitsubishi Corporation
19. Mod Tronic Instruments Ltd.
20. Motwane Manufacturing Company Pvt. Ltd.
21. MTE Meter Test Equipment AG
22. Ningbo Ligong Online Monitoring Technology Co. Ltd.
23. Qualitrol Company LLC
24. S&C Electric Company
25. Schneider Electric SE
26. Schweitzer Engineering Laboratories Inc.
27. Siemens AG
28. Vaisala Oyj
29. Wilson Transformer Company
30. Wipro Limited