| SASaab Aeronautics Indiana LLC | West Lafayette | IN | 100–499 | ● ACTIVE |
Safety Training Systems, INC | Tulsa | OK | 20–99 | ● ACTIVE |
Saf Industries LLC | Meriden | CT | — | ● ACTIVE |
Safran Electrical Components Usa, INC | Denton | TX | 500+ | ● ACTIVE |
Safran Electrical & Power Uk LTD | Sarasota | FL | 100–499 | ● ACTIVE |
Safran Electronics & Defense, Avionics Usa, LLC | Irvine | CA | — | ● ACTIVE |
| SLSafran Landing Systems Kentucky LLC | Walton | KY | 100–499 | ● ACTIVE |
Safran Power Usa, LLC | Sarasota | FL | 100–499 | ● ACTIVE |
Sagetech Avionics INC. | Bingen | WA | 20–99 | ● ACTIVE |
| SPSaint-gobain Performance Plastics Corporation | Ravenna | OH | 100–499 | ● ACTIVE |
Sanders Aircraft, INC. | Ione | CA | — | ● ACTIVE |
Schleifring North America, LLC | Chelmsford | MA | — | ● ACTIVE |
Schneller LLC | Kent | OH | 100–499 | ● ACTIVE |
Sechan Electronics INC | Lititz | PA | 100–499 | ● ACTIVE |
| STSecuraplane Technologies, INC. | Oro Valley | AZ | 100–499 | ● ACTIVE |
| SCSelecteon Corporation | Columbus | OH | — | ● 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 |
Sierra Nevada Company, LLC | Sparks | NV | — | ● 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-root INC | Vancouver | WA | 20–99 | ● ACTIVE |
Solomon Engineering, INC. | Hickory | NC | — | ● ACTIVE |
| STSoutheastern Technology, INC | Murfreesboro | TN | — | ● ACTIVE |
Space Electronics, LLC | Berlin | CT | — | ● ACTIVE |
Space-lok, INC. | Gardena | CA | — | ● ACTIVE |
Sparton Deleon Springs, LLC | De Leon Springs | FL | — | ● ACTIVE |
Spec Tool Company | Santa Fe Springs | CA | — | ● ACTIVE |
S & T Aircraft Accessories INC | New Braunfels | TX | — | ● ACTIVE |
Steele Industries INC | Bradenton | FL | — | ● ACTIVE |
| SOSurface Optics Corporation | San Diego | CA | 20–99 | ● ACTIVE |
Symbolic Displays, INC | Santa Ana | CA | — | ● ACTIVE |
| SISymetrics Industries, LLC | Melbourne | FL | — | ● ACTIVE |
Tac Industries INC | Springfield | OH | 100–499 | ● ACTIVE |
| TGTbt Group INC | Bellmawr | NJ | — | ● ACTIVE |
Tecfar Manufacturing, INC. | Sun Valley | CA | — | ● ACTIVE |
Technovative Applications | Brea | CA | — | ● ACTIVE |
Tek Precision CO Limited | Deer Park | NY | — | ● ACTIVE |
Telair US LLC | Goldsboro | NC | — | ● ACTIVE |
| TDTeledyne Detcon, INC. | Cypress | TX | 20–99 | ● ACTIVE |
| TETeledyne Etm, INC. | Newark | CA | — | ● ACTIVE |
Teledyne Instruments, INC. | San Diego | CA | — | ● ACTIVE |
| TITeledyne Instruments, INC. | Houston | TX | 100–499 | ● ACTIVE |
Telemetry Solutions INC | Concord | CA | — | ● ACTIVE |
Telephonics CORP | Farmingdale | NY | — | ● ACTIVE |
| TTTell Tool INC | Westfield | MA | 100–499 | ● ACTIVE |
Testek LLC | Wixom | MI | — | ● ACTIVE |
Texas Aerospace Technologies, LLC | Abilene | TX | — | ● ACTIVE |
Texstars LLC | Arlington | TX | — | ● ACTIVE |
Texstars LLC | Grand Prairie | TX | — | ● ACTIVE |
Thayermahan, INC | Groton | CT | 100–499 | ● ACTIVE |
The Boeing Company | Albuquerque | NM | — | ● ACTIVE |
The Boeing Company | Seal Beach | CA | — | ● 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 |
Topcon Positioning Systems, INC | Livermore | CA | — | ● ACTIVE |
Trans-cal Industries, INC | Van Nuys | CA | — | ● 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 |
| TSTube Specialties, INC. | Tempe | AZ | 20–99 | ● ACTIVE |
Turnamatic Machine INC | Richardson | TX | — | ● 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 |
Universal Instruments Corporation | Conklin | NY | — | ● ACTIVE |
University Swaging Corporation LLC Dba University Sc LLC | Woodinville | WA | — | ● ACTIVE |
U. S. Dynamics Corporation | Amityville | NY | — | ● ACTIVE |
Velocity Aerospace - Burbank, INC. | Burbank | CA | — | ● ACTIVE |
Vertex Modernization and Sustainment LLC | Indianapolis | IN | 500+ | ● 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 |
| 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 |
2ek Enterprise INC. | Newton Highlands | MA | — | ● ACTIVE |
| 3I3deo INC | Norwood | MA | — | ● ACTIVE |