| S.no | Company Name | Founded | Country |
|---|---|---|---|
| 1 | IFM Efector Inc. | USA | |
| 2 | Rockwell Automation | USA | |
| 3 | Balluff Inc. | USA | |
| 4 | Newport Industrial Glass Inc. | USA | |
| 5 | SensoPart Inc. | USA | |
| 6 | Pilz Automation Safety L.P. | USA | |
| 7 | Telemecanique Sensors | USA | |
| 8 | IDEC Corp. | USA | |
| 9 | COSA Xentaur Corp. | USA | |
| 10 | SICK Inc. | USA | |
| 11 | Leuze Electronic Inc. | USA | |
| 12 | Schneider Electric | USA | |
| 13 | Tri-Tronics | USA | |
| 14 | Nidec-Shimpo Corporation | USA | |
| 15 | Fluorometrics Instruments LLC | USA | |
| 16 | Comptrol Incorporated | USA | |
| 17 | Stevens Water Monitoring Systems Inc. | USA | |
| 18 | wenglor sensoric LLC | USA | |
| 19 | Emx Industries Inc. | USA | |
| 20 | Davis Instruments | USA | |
| 21 | Hydrolab | USA |
