1. Amtek Auto Ltd.
2. Arrow Precision Ltd.
3. Bharat Forge Ltd.
4. Braynt Racing Inc.
5. CIE Automotive
6. Crower Cams & Equipment Co. Inc.
7. Darcast Crankshaft’s Company
8. Ellwood Crankshaft Group
9. Fives Group
10. Kellogg Crankshaft Company
11. Magnum crankshafts by Callies
12. Mahle Group
13. Maschinenfabrik ALFING Kessler GmbH
14. Melling Engine Parts
15. Metalliic Auto Liner
16. Metalyst Forgings Limited
17. MS Motorservice International GmbH
18. Nippon Steel Corporation
19. NSI Crankshaft
20. Rheinmetall AG
21. Sandvik AB
22. TFO Corporation
23. Thyssenkrupp AG
24. Tianrun Industrial Technology Co. Ltd.
25. Zhejiang Yinlun Machinery Co. Ltd.