1. ABB Limited
2. Accuenergy Inc.
3. Acrel Co. Ltd.
4. Anritsu Corporation
5. DS Instruments
6. Eaton Corporation PLC
7. General Electric Company
8. Genus Power Infrastructures Limited
9. Havells India Limited
10. Holley Metering Limited
11. Honeywell International Inc.
12. Itron Inc.
13. Jiangsu Linyang Electronics Co. Ltd.
14. Keysight Technologies
15. Krytar Inc.
16. Kuhne Electronic by Alaris Group
17. Lakshmi Electrical Control Systems Limited
18. Ningbo Sanxing Electric Co. Ltd.
19. PCE Deutschland GmbH
20. Rockwell Automation Inc.
21. Rohde & Schwarz
22. Saluki Technology
23. Schneider Electric SE
24. Scientech Inc. by Curtiss-Wright Corporation
25. Siemens AG
26. Sontex SA
27. Tektronix Inc. by Danaher Corporation
28. Virginia Diodes Inc.
29. Werlatone Inc.