| Sen Tech Precimeter (Tempe, AZ)
|
| Sens Array Infrared (Burlington, MA)
|
| Sensatronics (Bow, NH)
|
| Sensitech (Upland, CA)
|
| Sensitron Associates Inc (Reading, PA)
|
| Sensor Development Corp (Rocky River, OH)
|
| Sensor Scientific Inc (Fairfield, NJ)
|
| Sensor Tec (Fort Wayne, IN)
|
| Service Control (Howell, MI)
|
| Setpoint Engineered Systems (Ogden, UT)
|
| Seville Technology (Bedford, OH)
|
| Seymour Instruments Inc (Stanton, CA)
|
| Sharman Co (Aromas, CA)
|
| Shockwatch (Hugo, MN)
|
| Sierra Pacific Innovations (Las Vegas, NV)
|
| Simgenics Corp (Mansfield, TX)
|
| Smith Engineering Inc (Chaska, MN)
|
| Sobek Enterprises (Indianapolis, IN)
|
| Solid State Cooling Systems (Pleasant Valley, NY)
|
| Solids Flow Inc (Houston, TX)
|
| Somerset Controls Inc (Middlesex, NJ)
|
| Sonex Research Inc (Annapolis, MD)
|
| South Broad Lukoil (Philadelphia, PA)
|
| Southern Mechanical & Controls (Wetumpka, AL)
|
| Spectrodyne Inc (Quakertown, PA)
|
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