| SPSaint-gobain Performance Plastics Corporation | Ravenna | OH | 100–499 | ● ACTIVE |
Sanders Aircraft, INC. | Ione | CA | — | ● ACTIVE |
Santa Barbara Infrared, INC. | Santa Barbara | CA | — | ● ACTIVE |
Schneller LLC | Kent | OH | 100–499 | ● ACTIVE |
| SESchwien Engineering, INC. | Pomona | CA | — | ● ACTIVE |
| SSScully Signal Company | Wilmington | MA | — | ● ACTIVE |
| STSecuraplane Technologies, INC. | Oro Valley | AZ | 100–499 | ● ACTIVE |
| SCSelecteon Corporation | Columbus | OH | — | ● ACTIVE |
| STSensata Technologies, INC. | Attleboro | MA | 500+ | ● ACTIVE |
Sensia LLC | Coraopolis | PA | 20–99 | ● ACTIVE |
Sensonetics, INC. | Fountain Valley | CA | — | ● ACTIVE |
Serflex LLC | Canoga Park | CA | — | ● ACTIVE |
Sessa Manufacturing & Welding | Ventura | CA | — | ● ACTIVE |
Sharp Tooling Solutions, LLC | Bruce Twp | MI | — | ● ACTIVE |
Shuttle Aerospace INC | Maize | KS | — | ● ACTIVE |
Sierra Instruments, INC. | Monterey | CA | — | ● ACTIVE |
Sikama International, INC | Santa Barbara | CA | — | ● ACTIVE |
| SPSimmonds Precision Products INC | Vergennes | VT | 500+ | ● ACTIVE |
Simplex Manufacturing CO. | Portland | OR | — | ● ACTIVE |
Skill-metric Machine and Tool, INC. | Delray Beach | FL | — | ● ACTIVE |
Smith Systems INC | Brevard | NC | 20–99 | ● ACTIVE |
Socomec, INC. | Watertown | MA | 100–499 | ● ACTIVE |
Solar Stik INC | Saint Augustine | FL | — | ● ACTIVE |
Solidstate Controls LLC | Columbus | OH | — | ● ACTIVE |
Solomon Engineering, INC. | Hickory | NC | — | ● ACTIVE |
| SMSolon Manufacturing CO | Chardon | OH | — | ● ACTIVE |
Sonic Systems INC | Warminster | PA | — | ● ACTIVE |
| STSoutheastern Technology, INC | Murfreesboro | TN | — | ● ACTIVE |
Space-lok, INC. | Gardena | CA | — | ● ACTIVE |
Spartronics Plaistow, INC. | Plaistow | NH | 20–99 | ● ACTIVE |
Special Power Sources LLC | Alliance | OH | — | ● ACTIVE |
S & T Aircraft Accessories INC | New Braunfels | TX | — | ● ACTIVE |
States Manufacturing LLC | Champlin | MN | — | ● ACTIVE |
| SISuperpower INC. | Glenville | NY | 20–99 | ● ACTIVE |
Symbolic Displays, INC | Santa Ana | CA | — | ● ACTIVE |
| SISymetrics Industries, LLC | Melbourne | FL | — | ● ACTIVE |
Tac Industries INC | Springfield | OH | 100–499 | ● ACTIVE |
Tavis CORP | Mariposa | CA | 20–99 | ● ACTIVE |
Tecfar Manufacturing, INC. | Sun Valley | CA | — | ● ACTIVE |
Technical Cable Applications, INC. | Auburn | WA | — | ● ACTIVE |
Tek Precision CO Limited | Deer Park | NY | — | ● ACTIVE |
Telair US LLC | Goldsboro | NC | — | ● ACTIVE |
Tempco Electric Heater Corporation | Wood Dale | IL | — | ● ACTIVE |
| TSTemperature Specialists, INC. | Saint Francis | MN | — | ● ACTIVE |
Temposonics, LLC | Cary | NC | 100–499 | ● ACTIVE |
Testek LLC | Wixom | MI | — | ● ACTIVE |
Testequity LLC | Moorpark | CA | — | ● ACTIVE |
Texas Aerospace Technologies, LLC | Abilene | TX | — | ● ACTIVE |
Texmate, INC. | Carlsbad | CA | — | ● ACTIVE |
Texstars LLC | Arlington | TX | — | ● ACTIVE |
Texstars LLC | Grand Prairie | TX | — | ● ACTIVE |
The Broach Masters, INC. | Auburn | CA | — | ● ACTIVE |
The Conrad Company | Memphis | TN | — | ● ACTIVE |
| TGThe Gill Corporation | El Monte | CA | 100–499 | ● ACTIVE |
The Gund Company, INC. | Walnut | CA | — | ● ACTIVE |
The Gund Company, INC. | Amsterdam | NY | — | ● ACTIVE |
The Lee CO | Westbrook | CT | — | ● ACTIVE |
Thermal Circuits, INC. | Salem | MA | — | ● ACTIVE |
Thermal Holdings LLC | Madison | AL | — | ● ACTIVE |
| TSThermal Structures, INC | Corona | CA | 100–499 | ● ACTIVE |
Thermetrics, LLC | Seattle | WA | — | ● ACTIVE |
Thermometrics Corporation | Northridge | CA | — | ● ACTIVE |
Thermoworks INC. | American Fork | UT | — | ● ACTIVE |
| TSThe Sterling Engineering Corporation | Barkhamsted | CT | 20–99 | ● ACTIVE |
| TUThe United Tool & Die Company | West Hartford | CT | 20–99 | ● ACTIVE |
The Wl Jenkins Company LLC | Canton | OH | — | ● ACTIVE |
Thierica, INC. | Grand Rapids | MI | — | ● ACTIVE |
Thomas Global Systems LLC | Irvine | CA | — | ● ACTIVE |
| TIThomas Instrument, Incorporated | Brookshire | TX | 100–499 | ● ACTIVE |
Thwing-albert Instrument CO | West Berlin | NJ | 20–99 | ● ACTIVE |
Tmmi, LLC | Wheat Ridge | CO | 1–19 | ● ACTIVE |
Tri-tech Electronics, INC. | Orlando | FL | — | ● ACTIVE |
| TATriumph Actuation Systems - Yakima, LLC | Yakima | WA | 100–499 | ● ACTIVE |
Triumph Controls, LLC | Shelbyville | IN | — | ● ACTIVE |
Triumph Controls, LLC | North Wales | PA | — | ● ACTIVE |
Triumph Insulation Systems LLC | Taylorsville | NC | 1–19 | ● ACTIVE |
Triumph Thermal Systems, LLC | Forest | OH | — | ● ACTIVE |
| TATrust Automation INC | San Luis Obispo | CA | — | ● ACTIVE |
Tsi Incorporated | Shoreview | MN | — | ● ACTIVE |
Turner Designs, INC. | San Jose | CA | — | ● ACTIVE |
Ultra Electronics Ice INC | Manhattan | KS | 20–99 | ● ACTIVE |
Ultra T Equipment Company, INC. | Fremont | CA | — | ● ACTIVE |
Unified Defense Holdings, LLC | Macon | GA | — | ● ACTIVE |
Unilux INC | Saddle Brook | NJ | — | ● ACTIVE |
Union Machine Company of Lynn, INC | Groveland | MA | — | ● ACTIVE |
United Aeronautical Corporation | North Hollywood | CA | — | ● ACTIVE |
| UAUnited Aviation Accessories, INC | Burleson | TX | 20–99 | ● ACTIVE |
United Equipment Accessories, INC. | Waverly | IA | 100–499 | ● ACTIVE |
United Equipment, INC | Richmond | VA | — | ● ACTIVE |
United Process Controls INC | Oak Creek | WI | 20–99 | ● ACTIVE |
University Swaging Corporation LLC Dba University Sc LLC | Woodinville | WA | — | ● ACTIVE |
U. S. Dynamics Corporation | Amityville | NY | — | ● ACTIVE |
Ushio America, INC | Cypress | CA | — | ● ACTIVE |
Varflex Corporation | Rome | NY | — | ● ACTIVE |
Velocity Aerospace - Burbank, INC. | Burbank | CA | — | ● ACTIVE |
| VMVenture Measurement Company LLC | Spartanburg | SC | 20–99 | ● ACTIVE |
Vertex Modernization and Sustainment LLC | Indianapolis | IN | 500+ | ● ACTIVE |
| VCVicor CORP | Andover | MA | — | ● ACTIVE |
Visionsafe Corporation | Kaneohe | HI | 20–99 | ● ACTIVE |
Volumatic INC | Macon | GA | — | ● ACTIVE |