1. Adapter Technology Co. Ltd.
2. Advanced Energy Industries Inc.
3. Astrodyne Corporation
4. Avnet Inc.
5. Bel Fuse Inc.
6. Cincon Electronics Co. Ltd.
7. COSEL Co. Ltd.
8. CUI Inc.
9. Delta Electronics Inc.
10. Emerson Electric Co.
11. FRIWO Geratebau GmbH
12. GlobTek Inc.
13. Inventus Power Inc.
14. MEAN WELL Enterprises Co. Ltd.
15. Mornsun Guangzhou Science & Technology Co. Ltd.
16. Powerbox International AB
17. Sinpro Electronics Co. Ltd.
18. SL Power Electronics Corp.
19. Synqor Inc.
20. TDK-Lambda Corporation
21. Texas Instruments Incorporated
22. Traco Electronic AG
23. TRC Electronics Inc.
24. Wall industries Inc.
25. XP Power Ltd.