| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | A.G.O. Environmental Electronics Ltd. | USA | |
| 2 | PICS INC | USA | |
| 3 | FloWav Inc. | USA | |
| 4 | Acuity Research Inc. | USA | |
| 5 | Hydrolab | USA | |
| 6 | IFM Efector Inc. | USA | |
| 7 | Micro-Epsilon | USA | |
| 8 | SensorLogic Inc. | USA | |
| 9 | Keyence Corp. of America | USA | |
| 10 | Leuze Electronic Inc. | USA | |
| 11 | Stevens Water Monitoring Systems Inc. | USA | |
| 12 | DJ Instruments | USA | |
| 13 | FPI Sensors Inc. | USA | |
| 14 | B&G | USA | |
| 15 | Warren-Knight Instrument Co. | USA | |
| 16 | Martin-Decker Totco | USA | |
| 17 | Migatron Corp. | USA | |
| 18 | Yotta Navigation Corporation | USA | |
| 19 | Lufft USA Inc. | USA | |
| 20 | Carnegie Robotics LLC | USA | |
| 21 | Gems Sensors & Controls | USA | |
| 22 | Phidgets Inc | USA | |
| 23 | Piezo Technologies | USA | |
| 24 | Campbell Scientific Inc. | USA | |
| 25 | NovaLynx Corporation | USA | |
| 26 | Flexial Corp. Edge Welded Metal Bellows | USA | |
| 27 | Sensors Kinetics Inc. | USA | |
| 28 | Judd Communications LLC | USA | |
| 29 | Davis Instruments | USA | |
| 30 | Paroscientific Inc. | USA |
