| STSecuraplane Technologies, INC. | Oro Valley | AZ | 100–499 | ● ACTIVE |
| SCSelecteon Corporation | Columbus | OH | — | ● ACTIVE |
Sellers Optical, INC. | Costa Mesa | CA | — | ● ACTIVE |
| STSensata Technologies, INC. | Attleboro | MA | 500+ | ● ACTIVE |
Sessa Manufacturing & Welding | Ventura | CA | — | ● ACTIVE |
Sharp Tooling Solutions, LLC | Bruce Twp | MI | — | ● ACTIVE |
Shuttle Aerospace INC | Maize | KS | — | ● ACTIVE |
Sigray, INC. | Benicia | 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 |
Solomon Engineering, INC. | Hickory | NC | — | ● ACTIVE |
| STSoutheastern Technology, INC | Murfreesboro | TN | — | ● ACTIVE |
Space-lok, INC. | Gardena | CA | — | ● ACTIVE |
Spi Borescopes LLC | Miami | FL | — | ● ACTIVE |
S & T Aircraft Accessories INC | New Braunfels | TX | — | ● ACTIVE |
Stefan Sydor Optics INC | Rochester | NY | — | ● ACTIVE |
Stoneage, INC. | Durango | CO | 100–499 | ● ACTIVE |
Superior Tactical LLC | Grandview | TX | — | ● ACTIVE |
Suss Microtec INC | Corona | CA | — | ● ACTIVE |
Symbolic Displays, INC | Santa Ana | CA | — | ● ACTIVE |
| SISymetrics Industries, LLC | Melbourne | FL | — | ● ACTIVE |
Tac Industries INC | Springfield | OH | 100–499 | ● ACTIVE |
Tactical Evolution Group, LLC | Hubert | NC | — | ● ACTIVE |
Tc Nu-star, INC. | Shakopee | MN | — | ● ACTIVE |
Tecfar Manufacturing, INC. | Sun Valley | CA | — | ● ACTIVE |
Tek Precision CO Limited | Deer Park | NY | — | ● ACTIVE |
Telair US LLC | Goldsboro | NC | — | ● ACTIVE |
Testek LLC | Wixom | MI | — | ● ACTIVE |
Texas Aerospace Technologies, LLC | Abilene | TX | — | ● ACTIVE |
Texstars LLC | Grand Prairie | TX | — | ● ACTIVE |
Texstars LLC | Arlington | 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 Lee CO | Westbrook | CT | — | ● ACTIVE |
| TSThermal Structures, INC | Corona | CA | 100–499 | ● ACTIVE |
| TSThe Sterling Engineering Corporation | Barkhamsted | CT | 20–99 | ● ACTIVE |
| TUThe United Tool & Die Company | West Hartford | CT | 20–99 | ● ACTIVE |
Thierica, INC. | Grand Rapids | MI | — | ● ACTIVE |
Thomas Global Systems LLC | Irvine | CA | — | ● ACTIVE |
| TIThomas Instrument, Incorporated | Brookshire | TX | 100–499 | ● ACTIVE |
| TLThorlabs Lens Systems, INC. | Rochester | NY | 20–99 | ● ACTIVE |
Tri-tech Electronics, INC. | Orlando | FL | — | ● ACTIVE |
| TATriumph Actuation Systems - Yakima, LLC | Yakima | WA | 100–499 | ● ACTIVE |
Triumph Controls, LLC | North Wales | PA | — | ● ACTIVE |
Triumph Controls, LLC | Shelbyville | IN | — | ● ACTIVE |
Triumph Insulation Systems LLC | Taylorsville | NC | 1–19 | ● ACTIVE |
Triumph Thermal Systems, LLC | Forest | OH | — | ● ACTIVE |
| TSTru Simulation + Training INC. | Lutz | FL | — | ● ACTIVE |
Ultra Electronics Ice INC | Manhattan | KS | 20–99 | ● ACTIVE |
Unified Defense Holdings, LLC | Macon | GA | — | ● 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, INC | Richmond | VA | — | ● ACTIVE |
University Swaging Corporation LLC Dba University Sc LLC | Woodinville | WA | — | ● ACTIVE |
| VIVarioscale, INC | Vista | CA | — | ● ACTIVE |
Velocity Aerospace - Burbank, INC. | Burbank | CA | — | ● ACTIVE |
Vertex Modernization and Sustainment LLC | Indianapolis | IN | 500+ | ● ACTIVE |
Vertex Optics, INC. | Victor | NY | — | ● ACTIVE |
Visionsafe Corporation | Kaneohe | HI | 20–99 | ● ACTIVE |
Volumatic INC | Macon | GA | — | ● ACTIVE |
Walden's Machine, LLC | Tulsa | OK | — | ● ACTIVE |
W and G Machine Company, Incorporated | Hamden | CT | 1–19 | ● ACTIVE |
| WMWeldmac Manufacturing Company | El Cajon | CA | 100–499 | ● ACTIVE |
Western State Design, INC. | Hayward | CA | 100–499 | ● ACTIVE |
| WAWhippany Actuation Systems, LLC | Whippany | NJ | 100–499 | ● ACTIVE |
Woodward Hrt, INC. | Fort Collins | CO | — | ● ACTIVE |
Yama Manufacturing Incorporated | San Antonio | TX | — | ● ACTIVE |
| ZMZephyr Manufacturing Co., INC. | Inglewood | CA | — | ● ACTIVE |
| ZAZim Aircraft Cabin Solutions LLC | Greensboro | NC | 100–499 | ● ACTIVE |
2101 LLC | Anaconda | MT | — | ● ACTIVE |
259 Holdings LTD LLC | Carlsbad | CA | — | ● ACTIVE |
| 3R365 Retail Markets LLC | Troy | MI | — | ● ACTIVE |
3d Perception, INC. | Orlando | FL | — | ● ACTIVE |
4 D Technology Corporation | Tucson | AZ | — | ● ACTIVE |
A2z Sprouters Supply, INC. | Louisville | KY | — | ● ACTIVE |
Ab Nightvision INC | Bristol | VA | — | ● ACTIVE |
Abtech Industries INC. | Scottsdale | AZ | — | ● ACTIVE |
Accel Aviation Accessories LLC | Fort Myers | FL | — | ● ACTIVE |
Access Virtual, LLC | Willoughby | OH | — | ● ACTIVE |
Ace Aeronautics LLC | Arlington | TX | — | ● ACTIVE |
Ace Air Manufacturing | Gardena | CA | — | ● ACTIVE |
Acromil Corporation | City of Industry | CA | — | ● ACTIVE |
Actinblack Us, LLC | Fort Worth | TX | — | ● ACTIVE |
Actually Holdings LLC | Cuyahoga Falls | OH | — | ● ACTIVE |
Adolf Meller CO | Providence | RI | — | ● ACTIVE |
Adpma, LLC | Piney Flats | TN | — | ● ACTIVE |
Adrian C. Godina | Irvine | CA | — | ● ACTIVE |
Advanced Air Systems, INC. | Lodi | CA | — | ● ACTIVE |
Advanced Composite Tooling LLC | South Salt Lake | UT | — | ● ACTIVE |
Advanced Digital Manufacturing LLC | Santa Ana | CA | — | ● ACTIVE |
Advanced Machining and Tooling, LLC | Poway | CA | — | ● ACTIVE |
Advanced Manufacturing Company of America, INC. | El Segundo | CA | — | ● ACTIVE |
Advanced Technologies Group, INC. | Stuart | FL | — | ● ACTIVE |
Advanced Thermoplastic Composites LLC | Post Falls | ID | — | ● ACTIVE |
Advanced Training Systems, LLC | Saint Petersburg | FL | — | ● ACTIVE |
Aei Investment Holdings INC | Wichita | KS | — | ● ACTIVE |
Aereos Interior Solutions, LLC | Euless | TX | — | ● ACTIVE |