| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | Ultraflux | USA | |
| 2 | Hoffer Flow Controls Inc. | USA | |
| 3 | Siemens Corporation | USA | |
| 4 | Turbines Inc. | USA | |
| 5 | Custom Valve Concepts | USA | |
| 6 | Sage Metering Inc. | USA | |
| 7 | Red Seal Measurement | USA | |
| 8 | FLEXIM Americas Corp. | USA | |
| 9 | Hydraulics International Inc. | USA | |
| 10 | IMAC Systems Inc. | USA | |
| 11 | Abell Combustion Inc. | USA | |
| 12 | Sylvania | USA | |
| 13 | Sierra Instruments | USA | |
| 14 | Cameron | USA | |
| 15 | FTI Flow Technology Inc. | USA | |
| 16 | PICS INC | USA | |
| 17 | Liquid Measurement & Controls Inc. | USA | |
| 18 | Aichi Tokei Denki Co. Ltd. | USA | |
| 19 | YZ Systems | USA | |
| 20 | Flow Systems Inc. | USA |
