1. Advanced Substrate Microtechnology Corporation
2. Asahi Glass Co. Ltd.
3. Carborundum Universal Limited
4. CeramTec GmbH
5. Chaozhou Three-Circle (Group) Co. Ltd.
6. CoorsTek Inc.
7. Corning Incorporated
8. Dowa Power Device Co. Ltd.
9. ICP Technology Co. Ltd.
10. KOA Corporation
11. Kyocera Corporation
12. LEATEC Fine Ceramics Co. Ltd
13. Maruwa Co. Ltd.
14. Merck KGaA
15. Murata Manufacturing Co. Ltd.
16. NEO Technology Solutions
17. Nikko Company
18. Nippon Carbide Industries Co. Inc.
19. Niterra Co. Ltd.
20. Ortech Advanced Ceramics
21. Rogers Corporation
22. TA-I TECHNOLOGY CO. LTD.
23. Toshiba Materials Co. Ltd.
24. TTM Technologies Inc.
25. Yokowo Co. Ltd.