| 1 | Mid-State Instruments | | USA |
| 2 | Rolin & Associates | | USA |
| 3 | CiSCO-Custom Instrumentation Services Corp. | | USA |
| 4 | Process Products Corp. | | USA |
| 5 | Penn Vint | | USA |
| 6 | DeJaye Electronics Inc. | | USA |
| 7 | Infitron Inc. | | USA |
| 8 | Sakor Technologies Inc. | | USA |
| 9 | General Electric Co. | | USA |
| 10 | Vortab Company | | USA |
| 11 | Robert H. Wager Co. Inc. | | USA |
| 12 | AMETEK Land | | USA |
| 13 | Goyen Valve LLC | | USA |
| 14 | ECO Physics Inc. | | USA |
| 15 | CIC Photonics Inc. | | USA |
| 16 | Auburn Systems | | USA |
| 17 | Cal Check | | USA |
| 18 | Industrial Scientific Corp. | | USA |
| 19 | Delphian Corporation | | USA |
| 20 | The Engwald Corporation | | USA |
| 21 | Enviro Petroleum Corp. | | USA |
| 22 | Process Metrix | | USA |
| 23 | Ducon Technologies Inc. | | USA |
| 24 | Blanke Industries Inc. | | USA |
| 25 | Infrared Industries | | USA |
| 26 | Extreme Energy Solutions Inc. | | USA |
| 27 | Thermo-Stack LLC | | USA |
| 28 | CMC Solutions LLC | | USA |
| 29 | Bascom-Turner Instruments | | USA |
| 30 | ADB Inc. | | USA |
| 31 | DURAG Inc. | | USA |
| 32 | Monitoring Instruments Products Div. Of Ducon Technologies | | USA |
| 33 | ENVEA Inc. | | USA |
| 34 | AMETEK Process Instruments | | USA |
| 35 | FLSmidth Inc. | | USA |
| 36 | Nationwide Boiler Inc. | | USA |
| 37 | Monitor Technologies LLC | | USA |
| 38 | Environics Inc. | | USA |
| 39 | KROHNE Inc. | | USA |
| 40 | Nova Analytical Systems | | USA |
| 41 | COSA Xentaur Corp. | | USA |
| 42 | ENMET | | USA |
| 43 | IAC - Industrial Accessories Company | | USA |
| 44 | MRU Instruments | | USA |
| 45 | RAE Systems Inc. | | USA |
| 46 | TALOSYS Inc. | | USA |
| 47 | IMR Enviromental Equipment Inc. | | USA |
| 48 | Anchortex Corporation | | USA |
| 49 | LumaSense Technologies Inc. | | USA |
| 50 | Testo Inc. | | USA |
| 51 | Panametrics (a Baker Hughes business) | | USA |
| 52 | AMETEK PI Combustion | | USA |
| 53 | MKS Instruments Inc. | | USA |
| 54 | Cerex Monitoring Solutions LLC | | USA |
| 55 | Spectrex Corp. | | USA |
| 56 | Apex Instruments Inc. | | USA |
| 57 | Altec AIR LLC | | USA |
