| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Generator Source (formerly Diesel Service & Supply) | USA | |
| 2 | Surplus Record Machinery & Electrical Equipment | USA | |
| 3 | ABB E-mobility | USA | |
| 4 | Cummins Inc. | USA | |
| 5 | Mitsubishi Hitachi Power Systems Americas Inc. | USA | |
| 6 | Combustion Associates | USA | |
| 7 | Langson Energy Inc. | USA | |
| 8 | Michigan CAT | USA | |
| 9 | Helidyne LLC | USA | |
| 10 | Kawasaki Gas Turbines | USA |
