1. 3M Company
2. American Elements
3. Anoop Ceramics
4. Applied Ceramics Inc.
5. BAE Systems PLC
6. Baikowski SA
7. CeramTec GmbH
8. Compagnie de Saint-Gobain S.A.
9. Corning Incorporated
10. Dyson Technical Ceramics Ltd.
11. Elan Technology Inc.
12. Ibiden Co. Ltd.
13. INMATEC Technologies GmbH
14. Kyocera Corporation
15. McDanel Advanced Ceramic Technologies
16. Morgan Advanced Materials PLC
17. NGK Spark Plug Group
18. PPG Industries Inc.