?- 3M
- Abrasive Technology Inc.
- Allied High Tech Products Inc.
- Almatis GmbH
- ARC Abrasives Inc.
- Asahi Diamond Industrial Co. Ltd
- CMC Materials
- Dewalt
- Fujimi Incorporated
- Klingspor
- Murugappa Group (Carborundum Universal Limited)
- Noritake Co. Limited
- Pan Abrasives
- Radiac Abrasives
- Robert Bosch GmbH
- RPM International Inc.
- Saint-Gobain
- SAK Abrasives Limited
- Super Abrasives
- Tyrolit Schleifmittelwerke Swarovski KG
- Uneeda Enterprizes Inc.