1. AB Volvo
2. AGCO Corporation
3. Caterpiller Inc.
4. Continental Aerospace Technologies GmbH
5. Cummins Inc.
6. Deere & Company
7. Delphi Automotive
PLC
8. Doosan Corporation
9. Faw Jiefang Automotive Co. Ltd.
10. Ford Motor Company
11. FPT Industrial S.P.A.
12. General Motors Company
13. Guangxi Yuchai Machinery Group Co. Ltd.
14. HD Hyundai Heavy Industries Co. Ltd.
15. IHI Power Systems Co. Ltd.
16. Kohler Co.
17. Kubota Corporation
18. Mahindra & Mahindra Ltd.
19. MAN Energy Solutions SE
20. Mitsubishi Heavy Industries Ltd.
21. Motosan A.S.
22. Qulliq Energy Corporation
23. Robert Bosch GmbH
24. Rolls-Royce Motor Cars Limited
25. Sulzer Ltd.
26. Weichai Power Co. Ltd.
27. W?rtsil? Corporation
28. Yanmar Co. Ltd.
29. Yunnan Yunnei Power Group Co. Ltd.