| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Superior Gearbox Company | USA | |
| 2 | Von Ruden Manufacturing Inc. | USA | |
| 3 | Rouse Industries.com | USA | |
| 4 | Xtrac | USA | |
| 5 | Turner Uni-Drive | USA | |
| 6 | Shimpo Drives Inc. | USA | |
| 7 | Volvo Trucks North America | USA | |
| 8 | Electronic Machine Parts LLC | USA | |
| 9 | Torque Transmission | USA | |
| 10 | GearTechnic Corp. | USA | |
| 11 | Carlisle Brake & Friction | USA | |
| 12 | RevMax Performance Converters | USA | |
| 13 | Candy Manufacturing Co. Inc. | USA | |
| 14 | AW North Carolina Inc. | USA |
