Yamaha Motor Corporation Limited (Japan)
Cummins Inc. (US)
Kohler Co. (US)
Generac Holdings Inc. (US)
Caterpillar Inc. (US)
Honda Siel Power Products Ltd (India)
Su-Kam Power Systems Ltd (India)
Mahindra Powerol Ltd. (India)
Greaves Cotton Limited (India)
FG Wilson (UK)