| RCRexon Components INC | Beachwood | OH | — | ● ACTIVE |
Rheonik Americas INC | Houston | TX | — | ● ACTIVE |
Rh Systems LLC | Gilbert | AZ | — | ● ACTIVE |
Richard H. Bird & CO. INC. | Waltham | MA | — | ● ACTIVE |
Rift Systems INC | Irvine | CA | — | ● ACTIVE |
| RLRittmeyer LLC | Algodones | NM | — | ● ACTIVE |
R. M. Young Company LLC | Traverse City | MI | — | ● ACTIVE |
Roadsys INC | Palm Harbor | FL | — | ● ACTIVE |
Rochester Sensors, LLC | Coppell | TX | — | ● ACTIVE |
Rocky Mountain Instrumentation INC | Murray | UT | — | ● ACTIVE |
| RCRoderick Consulting INC | Spring | TX | — | ● ACTIVE |
Rohmann LLC | Spartanburg | SC | — | ● ACTIVE |
Roll-2-roll Technologies LLC | Stillwater | OK | — | ● ACTIVE |
Ronan Systems LLC | Valencia | CA | — | ● ACTIVE |
Rotunda Scientific Technologies LLC | Mansfield | OH | — | ● ACTIVE |
Rpx Technologies INC | Stillwater | OK | — | ● ACTIVE |
Rugged Controls LLC | Seattle | WA | — | ● ACTIVE |
Runyan Industrial Gas Analyzers INC | Wooster | OH | — | ● ACTIVE |
Russtech Engineering Company, INC. | Mukilteo | WA | — | ● ACTIVE |
| SRSaco Research L.l.c. | Murrieta | CA | — | ● ACTIVE |
Safepoint Scientific LLC | West Berlin | NJ | — | ● ACTIVE |
Safran Trusted 4d INC. | West Henrietta | NY | — | ● ACTIVE |
Scanivalve CORP | Liberty Lake | WA | — | ● ACTIVE |
Scantek, INC. | Columbia | MD | — | ● ACTIVE |
Schneeberger, INC | Woburn | MA | — | ● ACTIVE |
Schneider Electric Systems USA INC | Maryville | TN | — | ● ACTIVE |
Scs Concept Americas, LLC | Auburn Hills | MI | — | ● ACTIVE |
| SSSeacoast Science, INC. | Carlsbad | CA | — | ● ACTIVE |
Seafloor Systems, INC. | El Dorado Hills | CA | — | ● ACTIVE |
| SSSeattle Safety, L.l.c. | Auburn | WA | — | ● ACTIVE |
| SDSecurity Detection INC | Ashland | MA | — | ● ACTIVE |
Se International INC | Summertown | TN | — | ● ACTIVE |
Sensaras, LLC | Bohemia | NY | — | ● ACTIVE |
Senscomp, INC. | Livonia | MI | — | ● ACTIVE |
Sensing Systems Corporation | North Dartmouth | MA | — | ● ACTIVE |
| STSensit Technologies, LLC | Valparaiso | IN | 100–499 | ● ACTIVE |
Sensit Ventures, INC. | Davis | CA | — | ● ACTIVE |
Sensordata Technologies INC | Shelby Township | MI | — | ● ACTIVE |
Sensor Research and Development CORP | Orono | ME | — | ● ACTIVE |
Sensor Solutions, INC. | Steamboat Springs | CO | — | ● ACTIVE |
Sensor Technology Engineering LLC | Santa Barbara | CA | — | ● ACTIVE |
Sensuron LLC | Goleta | CA | — | ● ACTIVE |
| SISenswork INC. | Johnson City | TN | — | ● ACTIVE |
Sentek Dynamics INC. | Santa Clara | CA | — | ● ACTIVE |
Sentek Instrument, LLC | Blacksburg | VA | — | ● ACTIVE |
Sequoia Scientific, INC | Bellevue | WA | — | ● ACTIVE |
| SESevern Engineering CO INC | Coppell | TX | — | ● ACTIVE |
| SSShermco Systems Integration, LLC | Wichita Falls | TX | — | ● ACTIVE |
Shift Controls, INC. | Denver | CO | — | ● ACTIVE |
S Himmelstein & CO | Hoffman Estates | IL | — | ● ACTIVE |
Shockwatch INC. | Dallas | TX | — | ● ACTIVE |
Sightir, INC. | Goleta | CA | — | ● ACTIVE |
Signal-wise INC | Troy | MI | — | ● ACTIVE |
Skc INC | Eighty Four | PA | — | ● ACTIVE |
Skc-west, INC. | Fullerton | CA | — | ● ACTIVE |
Sky Power International LLC | Liberty | SC | — | ● ACTIVE |
Slone Gear International INC | Tipp City | OH | — | ● ACTIVE |
Sme Associates LLC | Palmetto | FL | — | ● ACTIVE |
Smiths Detection INC. | Edgewood | MD | — | ● ACTIVE |
| SLSmp Logic Systems LLC | Los Angeles | CA | — | ● ACTIVE |
Softplc Corporation | Spicewood | TX | — | ● ACTIVE |
Solid State Automation and Controls LLC | Stafford | TX | — | ● ACTIVE |
Solid State Cooling Systems, INC. | Wappingers Falls | NY | — | ● ACTIVE |
Solinst Eureka LLC | Austin | TX | — | ● ACTIVE |
Solinst Flute LLC | Velarde | NM | — | ● ACTIVE |
Solmirus Corporation | Colorado Springs | CO | — | ● ACTIVE |
| SISonatest INC | San Antonio | TX | — | ● ACTIVE |
Sound Inspectors LLC | Lakeville | MN | — | ● ACTIVE |
Soundwater Technologies, LLC | Wenatchee | WA | — | ● ACTIVE |
Southern Marketing Associates INC | Orlando | FL | — | ● ACTIVE |
South Fork Instruments, INC. | Auburn | CA | — | ● ACTIVE |
Southwest Scientific, INC. | Corona Del Mar | CA | — | ● ACTIVE |
Space Forge INC. | Satellite Beach | FL | — | ● ACTIVE |
Spectral Dynamics INC | Santa Clara | CA | — | ● ACTIVE |
Spectrum Environmental Solutions LLC | Austin | TX | — | ● ACTIVE |
Spectrum Techniques, LLC | Oak Ridge | TN | — | ● ACTIVE |
Spectrum Technologies INC | Aurora | IL | — | ● ACTIVE |
Spica Technology Corporation | Kihei | HI | — | ● ACTIVE |
Spidercam US INC | Kennesaw | GA | — | ● ACTIVE |
| SISpraytrack, INC. | Austin | MN | — | ● ACTIVE |
| SRSquare Robot, INC | Westborough | MA | — | ● ACTIVE |
Starrett Kinemetric Engineering, INC. | Laguna Hills | CA | — | ● ACTIVE |
Statesville Process Instruments, INC. | Statesville | NC | — | ● ACTIVE |
| STSteam Trap Systems LLC | Newburyport | MA | — | ● ACTIVE |
Stevens Water Monitoring Systems, INC. | Portland | OR | — | ● ACTIVE |
Sti Vibration Monitoring INC. | League City | TX | — | ● ACTIVE |
Stn Instruments LLC | Portland | OR | — | ● ACTIVE |
| SBStony Brook Scientific, LTD | Norristown | PA | — | ● ACTIVE |
Storm Technologies LLC | Lees Summit | MO | — | ● ACTIVE |
Strainsert Company | Conshohocken | PA | — | ● ACTIVE |
| SIStresstech INC. | Pittsburgh | PA | — | ● ACTIVE |
Structural Iot LLC | Mansfield | OH | — | ● ACTIVE |
| SAStuart a Cole | Roanoke | TX | — | ● ACTIVE |
Suco Technologies, INC. | Saint Louis | MO | — | ● ACTIVE |
Sump Alarm, INC | Saint Louis | MO | — | ● ACTIVE |
Sun Electronic Systems, INC | Titusville | FL | — | ● ACTIVE |
Sunradon LLC | Melbourne | FL | — | ● ACTIVE |
Sun Tec CORP | Novi | MI | — | ● ACTIVE |
Super Systems INC | Cincinnati | OH | — | ● ACTIVE |
Supply Link INC | Delaware | OH | — | ● ACTIVE |