1. ABB Ltd.
2. American Microsemiconductor Inc.
3. Applied Power Systems Inc.
4. C&H Technology Inc.
5. Fuji Electric Co. Ltd.
6. Hitachi
Ltd.
7. Infineon Technologies AG
8. Mitsubishi Electric Corporation
9. ON Semiconductor
10. Radix Electrosystems Private Limited
11. Renesas Electronics Corporation
12. Solid State Devices Inc.
13. STMicroelectronics N.V.
14. Toshiba Corporation
15. Vishay Intertechnology Inc.