- Aisin Seiki Co Ltd
- Allison Transmission Holdings
- BorgWarner Inc.
- Continental AG
- Daimler AG
- Delphi Automotive
- Eaton Corporation PLC
- Fiat Powertrain Technologies
- GETRAG FORD Transmissions GmbH
- Hilite International
- Jatco Ltd.
- Magna International Inc.
- NSK Ltd.
- Oerlikon Management AG
- Tremec
- Valeo
- ZF Friedrichshafen AG