- Larsen and Toubro group
- Ashok Leyland Ltd
- Lokesh Machines Ltd
- Alfa Laval (I) Ltd
- Mahindra & Mahindra Ltd.
- Automotive Stampings & Assemblies Ltd
- Mahindra Cie Automotive Ltd – Group
- Avtec Ltd
- Mahindra Heavy Engines (P) Ltd.
- Bajaj Auto Ltd.
- Mahindra Sona Ltd.
- Bharat Forge Ltd.
- Mahindra Vehicle Mfg. Ltd.
- Bhushan Steel Ltd.
- Man Trucks India Pvt Ltd
- Bosch Chassis Systems India Ltd.
- Maruti Suzuki India Ltd
- Bosch Ltd (Nasik)
- Mercedes Benz India Pvt Ltd
- Piaggio Vehicles P.Ltd.
- Cummins Technologies India Ltd.
- Premium Transmission Ltd.
- Eaton group
- NRB Bearings Ltd.
- RSB Transmissions India Ltd
- Endurance Technologies Group
- Sandvik Asia Pvt Ltd
- Essar Steel Ltd.
- Sansera Engineering Pvt Ltd
- Exide Industries Ltd.
- Saint Gobain Sekurit India Ltd
- Fairfield Atlas Ltd.
- Siemens Ltd
- Ferrocare Machines P.Ltd.
- SKF India Ltd.
- Finolex Cables Ltd.
- Spaco Carburettors India Ltd.
- Finolex Industries Ltd
- Span Associates
- Force Motors Ltd
- ISGEC Heavy Engineering Ltd
- ZF Steering Gear India Ltd.
- Jaya Hind Industries Ltd.
- JCB India Ltd
- Carraro India Ltd.
- Miven Mayfran Conveyors P.Ltd.
- Century Enka Ltd.
- Cummins India Ltd.
- Rieter India Pvt Ltd.
- Elecon Engineering Co.Ltd.
- Jindal Stainless Ltd
- John Deere India Pvt. Ltd.
- Kalyani Carpenter Special Steels Pvt Ltd
- Kalyani Technoforge Ltd
- Kirloskar Brothers Ltd.
- Kirloskar Oil Engines Ltd
- Kirloskar Pneumatic Co. Ltd.
- KSB Pumps Ltd.
- Tata Cummins Ltd.
- General Motors India Pvt Ltd
- Tata Motors Ltd. (Complete Group)
- Honda Cars India Ltd
- Thyssen Krupp Industries India Ltd.
- Honda Motorcycle & Scooter India Pvt Ltd
- Varroc group
- INA Bearings India Pvt Ltd
- VE Commercial Vehicles Ltd
- Involute Technologies Pvt Ltd
- Volkswagen India Pvt Ltd
- Crompton Greaves Ltd.
- Paranjape Autocast Ltd.