| Sonex Research Inc (Annapolis, MD)
|
| Source Production & Equip Co (Saint Rose, LA)
|
| Source Scientific (Irvine, CA)
|
| South Broad Lukoil (Philadelphia, PA)
|
| Southeastern Liquid Analyzers (York, SC)
|
| Southern Cross Corp (Norcross, GA)
|
| Southern Enterprise Lab Spec (Saint Amant, LA)
|
| Southern Kinetics Co (Virginia Beach, VA)
|
| Southern Mechanical & Controls (Wetumpka, AL)
|
| Space Electronics Inc (Berlin, CT)
|
| Spactial Data (Medina, OH)
|
| Specialized Environmental (Whittier, CA)
|
| Spectra Quest Inc (Richmond, VA)
|
| Spectro Analytical Instrs Inc (Marlborough, MA)
|
| Spectrodyne Inc (Quakertown, PA)
|
| Spectrolab Inc (Sylmar, CA)
|
| Spectrum Infrared Inc (Cleveland, OH)
|
| Spintron Inc (Edison, NJ)
|
| Spirentcommunication (Rockville, MD)
|
| Spiricon Inc (Logan, UT)
|
| Spm Instruments (Marlborough, CT)
|
| Sponsler Inc (Westminster, SC)
|
| Springfield Precision Instrmnt (Wood Ridge, NJ)
|
| Spx (Owatonna, MN)
|
| Spx Service Solutions (Tempe, AZ)
|
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