TOTO Ltd. (Fine Ceramics Division) (Japan)
Superior Technical Ceramics (USA)
Shanghai Ceratek Advanced Ceramic Technology Co., Ltd. (China)
Saint-Gobain Ceramic Materials (France)
Rauschert GmbH (Germany)
Precision Ceramics Ltd. (UK)
Ortech Advanced Ceramics (USA)
NGK Insulators, Ltd. (Japan)
Murata Manufacturing Co., Ltd. (Japan)
Morgan Advanced Materials (UK)
McDanel Advanced Ceramic Technologies (USA)
Kyocera Corporation (Japan)