1. Aisin Corporation
2. Allison Transmission Inc.
3. American Axle & Manufacturing Inc.
4. Benevelli Srl
5. Bonfiglioli Riduttori S.p.A.
6. BorgWarner Inc.
7. Continental AG
8. Dana Incorporated
9. GKN Automotive Limited
10. Magna International Inc.
11. Nidec Corporation
12. Robert Bosch GmbH
13. Schaeffler AG
14. ZF Friedrichshafen AG
15. ZIEHL-ABEGG SE