1. Advantech Co. Ltd.
2. Ametek Inc.
3. Astrodyne TDI Corporation
4. B&K Precision Corporation
5. Camtec Power Supplies GmbH
6. Delta Electronics Inc.
7. Deutronic Elektronik GmbH
8. EPS Stromversorgung GmbH
9. FEAS GmbH
10. GlobTek Inc.
11. Keithley Instruments Inc.
12. Micro Power Direct LLC
13. Powersolve Electronics Ltd.
14. TDK Corporation
15. Traco Electronic Company Limited
16. XP Power LLC