- GKN PLC
- Advanced Composite Products & Technology Inc. ACPT Inc.
- American Axle & Manufacturing Holdings Inc.
- Neapco Holdings
LLC - Dana Holding Corporation
- Yamada Manufacturing Co. Ltd.
- Trelleborg AB
- NTN Corporation
- Ifa Rotorion - Holding GmbH
- The Timken Company
- JTEKT Corporation
- Hyundai Wia Corporation
- NKN Ltd.
- Nexteer Automotive
- Meritor Inc. (Cummins Inc.)