| 1 | Sandelius Instruments Inc. | | USA |
| 2 | Sensor Scientific Inc. | | USA |
| 3 | Zettler Controls Inc. | | USA |
| 4 | ThermoWorks | | USA |
| 5 | Palmer Wahl Instrumentation Group | | USA |
| 6 | Convectronics | | USA |
| 7 | Quality Thermistor Inc. | | USA |
| 8 | Sentinel Power Inc. | | USA |
| 9 | Davis Instruments | | USA |
| 10 | CMP Corp. | | USA |
| 11 | Lake Shore Cryotronics | | USA |
| 12 | CANTHERM – Canadian Thermostats & Control Devices Ltd. | | USA |
| 13 | HawkEye Technologies LLC | | USA |
| 14 | Wecc | | USA |
| 15 | Veritas Sensors LLC | | USA |
| 16 | T.I. CHEN Associates | | USA |
| 17 | Thermalogic Corp. | | USA |
| 18 | IFM Efector Inc. | | USA |
| 19 | WATTCO | | USA |
| 20 | Temperature Specialists Inc. | | USA |
| 21 | Pyromation | | USA |
| 22 | Tempco Electric Heater Corp. | | USA |
| 23 | Thermik Corporation | | USA |
| 24 | Selco Products Co. | | USA |
| 25 | Thermal Solutions Products LLC | | USA |
| 26 | Smith Systems Inc. | | USA |
| 27 | Thermistors Unlimited Inc. | | USA |
| 28 | Omron Automation Americas | | USA |
| 29 | Minco | | USA |
| 30 | Watlow | | USA |
| 31 | Solar Light | | USA |
| 32 | The Stutz Company | | USA |
| 33 | Microtherm North America Inc. | | USA |
| 34 | Enercorp Instruments Ltd. | | USA |
| 35 | Gems Sensors & Controls | | USA |
| 36 | Hewitt Industries | | USA |
| 37 | PICS INC | | USA |
| 38 | Climatronics Corporation | | USA |
| 39 | W. H. Cooke & Co. Inc. | | USA |
| 40 | Innovative Components | | USA |
| 41 | Omega Engineering Inc. | | USA |
