1. ABB Ltd.
2. American Zettler Inc.
3. Excel Cell Electronic Co. Ltd.
4. Fujitsu Ltd.
5. IDEC Corporation
6. OMRON Corporation
7. Panasonic Corporation
8. Phoenix Contact Group
9. RJS Electronics Ltd.
10. Schneider Electric SE
11. Siemens AG
12. Song Chuan Precision Co. Ltd.
13. TE Connectivity Ltd.
14. Teledyne Technologies Inc.
15. Xiamen Hongfa Electroacoustic Co. Ltd.
16. Zhejiang CHINT Electrics Co. Ltd.