1. ABB Ltd.
2. Atlas Marine Systems Inc.
3. Caterpillar Inc.
4. Cummins Inc.
5. Daihatsu Diesel Mfg. Co. Ltd.
6. Doosan Corporation
7. Eaton Corporation PLC
8. Emerson Electric Co.
9. ENAG
10. Enersys Inc.
11. Exide Industries Ltd
12. Fairbanks Morse
LLC by EnPro Industries Inc.
13. HBL Power Systems Limited
14. Hydraulic Marine Systems Inc.
15. Hyundai Electric & Energy Systems Co. Ltd.