1. 3M Company
2. Active Enterprises
3. Advanced Ceramic Technology
4. Advanced Ceramics Corp.
5. Advanced Ceramics Manufacturing
6. AGC Group
7. Al Khaleej Ceramics
8. Ants Ceramics
9. Applied Ceramics Inc.
10. Blasch Precision Ceramics Inc.
11. Ceramitec Industries
12. CeramTec GmbH
13. COI Ceramics Inc.
14. Compagnie de Saint-Gobain S.A.
15. CoorsTek Inc.
16. Corning Incorporated
17. Elan Technology
18. Ferrotec (USA) Corporation
19. IMERYS Ceramic
20. Kyocera Corporation
21. MARUWA Co. Ltd.
22. Materion Corporation
23. McDanel Advanced Ceramic Technologies LLC
24. Morgan Advanced Materials plc
25. Rauschert GmbH
26. Wonik QnC Corporation