| SHScott's Helicopter Services INC | Le Sueur | MN | — | ◇ UNVERIFIED |
| SPScott's Plating | Providence | RI | — | ◇ UNVERIFIED |
| SNSierra Nevada Corporation | Englewood | CO | — | ◇ UNVERIFIED |
| SASikorsky Aircraft Bridgeport I Facility | Bridgeport | CT | — | ◇ UNVERIFIED |
| SASikorsky Aircraft Shelton Iii | Shelton | CT | — | ◇ UNVERIFIED |
| SCSikorsky Commercial INC | Coatesville | PA | — | ◇ UNVERIFIED |
| SCSikorsky Commercial INC | Coatesville | PA | — | ◇ UNVERIFIED |
| SMSikorsky Military Components Center | Horseheads | NY | — | ◇ UNVERIFIED |
| SCSkippack Clnr/ambler | Blue Bell | PA | — | ◇ UNVERIFIED |
| SASmiths Aerospace | Santa Ana | CA | — | ◇ UNVERIFIED |
| SSSmith & Smith Aircraft International, LTD. | Wichita | KS | — | ◇ UNVERIFIED |
| SSSouth Seneca Car Care | Wichita | KS | — | ◇ UNVERIFIED |
| SLSpace Lok Incorporated | Gardena | CA | — | ◇ UNVERIFIED |
| SPSpecialized Processing CO INC | El Cajon | CA | — | ◇ UNVERIFIED |
| SASpirit Aerosystems, INC. | Chanute | KS | — | ◇ UNVERIFIED |
| SASpirit Aerosystems /mcalester Facility | Mcalester | OK | — | ◇ UNVERIFIED |
| SASpirit Aerosystems San Antonio | San Antonio | TX | — | ◇ UNVERIFIED |
| SIStoddard International | Arlington | WA | — | ◇ UNVERIFIED |
| SISunvair INC | Valencia | CA | — | ◇ UNVERIFIED |
| TPTakata Protection Systems, INC. | Pompano Beach | FL | — | ◇ UNVERIFIED |
| TDTaylor Dynamometer, Dba | Milwaukee | WI | — | ◇ UNVERIFIED |
| TATect Aerospace Wellington | Wellington | KS | — | ◇ UNVERIFIED |
| TITelair International | Oxnard | CA | — | ◇ UNVERIFIED |
| TATextron Aviation INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| TSTextron Systems Corporation | Hunt Valley | MD | — | ◇ UNVERIFIED |
| TGThales Group International | Orlando | FL | — | ◇ UNVERIFIED |
| TBThe Boeing CO 24th Pl W | Everett | WA | — | ◇ UNVERIFIED |
| TBThe Boeing Company | Salt Lake City | UT | — | ◇ UNVERIFIED |
| TBThe Boeing Company - Boeing South Carolina (airport Campus) | North Charleston | SC | — | ◇ UNVERIFIED |
| TBThe Boeing Company, Defense, Space & Security, Rotorcraft Programs, Philadelphia | Ridley Park | PA | — | ◇ UNVERIFIED |
| TBThe Boeing Company - West Jordan | West Jordan | UT | — | ◇ UNVERIFIED |
| TBThe Boeing CO North Airport Facility | Long Beach | CA | — | ◇ UNVERIFIED |
| TBThe Boeing Co- Victorville Operations | Victorville | CA | — | ◇ UNVERIFIED |
| TMThe Marquardt Company | Van Nuys | CA | — | ◇ UNVERIFIED |
| TTThornton Technology Corporation | Oceanside | CA | — | ◇ UNVERIFIED |
| TATimken Aerospace Transmissions | Manchester | CT | — | ◇ UNVERIFIED |
| TCTotal Clean LLC of Illinois | Lake Charles | LA | — | ◇ UNVERIFIED |
| TITriad International Maintenance Corporation | Lake City | FL | — | ◇ UNVERIFIED |
| TATriumph Aerostructures (k6 Facility) | Torrance | CA | — | ◇ UNVERIFIED |
| TATriumph Aerostructures-vought Inegrated Programs Div | Dallas | TX | — | ◇ UNVERIFIED |
| TCTriumph Composite Systems INC | Spokane | WA | — | ◇ UNVERIFIED |
| TITriumph Interiors, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| TITriumph Interiors LLC | College Park | GA | — | ◇ UNVERIFIED |
| TSTriumph Structures - Los Angeles | City of Industry | CA | — | ◇ UNVERIFIED |
| TETucson Electric Power CO (north Loop) | Rillito | AZ | — | ◇ UNVERIFIED |
| TTTulalip Test Site | Tulalip | WA | — | ◇ UNVERIFIED |
 Tyee Aircraft Mckechnie Group | Everett | WA | — | ◇ UNVERIFIED |
| UAUnical Aviation INC | City of Industry | CA | — | ◇ UNVERIFIED |
| UAUnited Aero Group | Enterprise | AL | — | ◇ UNVERIFIED |
| UDUS Department of the Air Force | San Antonio | TX | — | ◇ UNVERIFIED |
