| 1 | CoorsTek Sensors LLC | | USA |
| 2 | Hydrolab | | USA |
| 3 | C-Lock Inc. | | USA |
| 4 | Mettler-Toledo | | USA |
| 5 | Advanced Chemical Sensors | | USA |
| 6 | PICS INC | | USA |
| 7 | BASF Catalysts | | USA |
| 8 | Redondo Optics Inc. | | USA |
| 9 | Industrial Scientific Corp. | | USA |
| 10 | Yokogawa Analytical | | USA |
| 11 | Sierra Monitor Corporation | | USA |
| 12 | Illinois Instruments Inc. | | USA |
| 13 | Advanced Materials & Technology Services (AMTS) | | USA |
| 14 | A.L. Doering Spark Plug Corp. | | USA |
| 15 | TMR Holdings LLC | | USA |
| 16 | Apogee Instruments | | USA |
| 17 | Water Analytics Inc. | | USA |
| 18 | Electro-Chemical Devices Inc. | | USA |
| 19 | NGK Spark Plugs (USA) Inc. | | USA |
| 20 | PowderTech International | | USA |
| 21 | Engineered Systems & Designs Inc. | | USA |
| 22 | Davis Instruments | | USA |
| 23 | Hach Ultra Analytics | | USA |
| 24 | Nyad Inc. | | USA |
| 25 | Peak Laboratories LLC. | | USA |
| 26 | Century Controls Technologies Inc. | | USA |
| 27 | Bio-Protech Inc. | | USA |
| 28 | Custom Sensors & Technology | | USA |
| 29 | Steam Machines Inc. | | USA |
| 30 | Spectra Premium Industries | | USA |
| 31 | Screw Machine Specialties | | USA |
| 32 | Isensix Inc. | | USA |
| 33 | GDS Corp. | | USA |
| 34 | Vacumetrics Inc. | | USA |
| 35 | MEECO Inc. | | USA |
| 36 | W.T. Farley Inc. | | USA |
| 37 | World Precision Instruments Inc. | | USA |
| 38 | Sensorcon Inc. | | USA |
| 39 | Rel-Tek Corp. | | USA |
| 40 | Cobham Mission Systems | | USA |
| 41 | Vaisala Inc. | | USA |
| 42 | CPAP USA | | USA |
| 43 | Stevens Water Monitoring Systems Inc. | | USA |
| 44 | CO2 Meter Inc. | | USA |
| 45 | Texas Instruments | | USA |
| 46 | Analytical Industries Inc. dba Advanced Instruments Inc. | | USA |
| 47 | Akers Nanotechnology Inc. | | USA |
| 48 | Maxtec Inc. | | USA |
| 49 | ENOTEC Inc. | | USA |
| 50 | Vortab Company | | USA |
| 51 | AMETEK PI Combustion | | USA |
| 52 | Advanced Micro Instruments Inc. | | USA |
| 53 | DOD Technologies | | USA |
| 54 | IFM Efector Inc. | | USA |
| 55 | Xylem Inc. | | USA |
| 56 | Emerson Automation Solutions Regulators and Relief Valves | | USA |
| 57 | Endress+Hauser | | USA |
| 58 | Control Instruments Corp. | | USA |
| 59 | AMETEK Process Instruments | | USA |
| 60 | Figaro USA Inc. | | USA |
| 61 | MSA Safety | | USA |
| 62 | AMETEK MOCON | | USA |
| 63 | MST Inc. | | USA |
| 64 | Swan Analytical USA Inc. | | USA |
| 65 | Nova Analytical Systems | | USA |
| 66 | Oxigraf Inc. | | USA |
| 67 | Standard Motor Products Inc. (SMP) | | USA |
| 68 | McDanel Advanced Ceramic Technologies | | USA |
| 69 | MSA The Safety Company | | USA |
| 70 | Polestar Technologies Inc. | | USA |
| 71 | Michell Instruments Inc. | | USA |
| 72 | Sensorex | | USA |
| 73 | Analox Sensor Technology Ltd | | USA |
| 74 | ENMET | | USA |
| 75 | Roscid Technologies | | USA |
| 76 | Meter Group | | USA |
| 77 | COSA Xentaur Corp. | | USA |
