| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | RG Group | USA | |
| 2 | Danfoss Power Solutions Co. | USA | |
| 3 | American Hydrostatics | USA | |
| 4 | Deere & Company | USA | |
| 5 | Gusher Pumps | USA | |
| 6 | Rocky Mountain Hydrostatics Inc. | USA | |
| 7 | Eaton Crouse-Hinds Division | USA | |
| 8 | European Industrial Products Inc. | USA | |
| 9 | Linde Hydraulics Corp. | USA | |
| 10 | Steffen Inc. | USA | |
| 11 | Bosch Rexroth Corp. | USA | |
| 12 | Poclain Hydraulics Inc. | USA | |
| 13 | Hydraulic Systems Ltd. | USA | |
| 14 | Hydro-Gear | USA | |
| 15 | Transgear Mfg. Inc. | USA | |
| 16 | Variators Ltd. | USA | |
| 17 | Syncrodrive | USA |
