| 1 | Zettler Controls Inc. | | USA |
| 2 | Durex Industries | | USA |
| 3 | Omega Engineering Inc. | | USA |
| 4 | Control Resources Incorporated | | USA |
| 5 | Hampton Controls Inc. | | USA |
| 6 | Campbell Scientific Inc. | | USA |
| 7 | Sensor Scientific Inc. | | USA |
| 8 | Quality Thermistor Inc. | | USA |
| 9 | HawkEye Technologies LLC | | USA |
| 10 | Oven Industries Inc. | | USA |
| 11 | Jameco Electronic Components & Computer Products | | USA |
| 12 | American Zettler Inc. | | USA |
| 13 | GEC Instruments | | USA |
| 14 | CANTHERM – Canadian Thermostats & Control Devices Ltd. | | USA |
| 15 | CMP Corp. | | USA |
| 16 | Davis Instruments | | USA |
| 17 | Redpoint Controls LLC | | USA |
| 18 | IFM Efector Inc. | | USA |
| 19 | Emerson Automation Solutions Regulators and Relief Valves | | USA |
| 20 | WATTCO | | USA |
| 21 | Temperature Specialists Inc. | | USA |
| 22 | Tempco Electric Heater Corp. | | USA |
| 23 | Thermik Corporation | | USA |
| 24 | Acrolab Ltd. | | USA |
| 25 | Selco Products Co. | | USA |
| 26 | Thermal Solutions Products LLC | | USA |
| 27 | Smith Systems Inc. | | USA |
| 28 | Balluff Inc. | | USA |
| 29 | Thermalogic Corp. | | USA |
| 30 | Omron Automation Americas | | USA |
| 31 | Munters Corporation – AirTech | | USA |
| 32 | Automation Products Group Inc. (APG SENSORS) | | USA |
| 33 | Minco | | USA |
| 34 | Watlow | | USA |
| 35 | Sentinel Power Inc. | | USA |
| 36 | Innovative Components | | USA |
| 37 | Enercorp Instruments Ltd. | | USA |
| 38 | EI Sensor Technologies | | USA |
| 39 | Convectronics | | USA |
| 40 | Microtherm North America Inc. | | USA |
| 41 | Palmer Wahl Instrumentation Group | | USA |
| 42 | PICS INC | | USA |
