1. Honda Siel Power Products Limited

2. Kirloskar Oil Engines Ltd. (KOEL)
3. Mahindra Powerol Limited
4. Kohler Power India Private Limited
5. Greaves Cotton Limited

6. Atlas Copco (India) Limited
7. Himalayan Power Machines Mfg Co

8. Generac Power Systems Inc
9. Perfect House Pvt. Ltd
10. Yamaha Motor Co. Ltd

11. Mitsubishi Power India Private Limited

12. Cummins India Limited