| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SHSuncoast Heat Treat INC | Palm Beach Gardens | FL | — | ◇ UNVERIFIED |
| SWSunshine Welding, Scallop | Port Canaveral | FL | — | ◇ UNVERIFIED |
| SDSuperior Derrick Services LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| SSSuperior Spindle Service LLC | Taylor | MI | — | ◇ UNVERIFIED |
| SCSupreme Cores, Incorporated | Milwaukee | WI | — | ◇ UNVERIFIED |
| SLSwarovski Lighting LTD | Plattsburgh | NY | — | ◇ UNVERIFIED |
| SPSycamore Precision Machine INC | Genoa | IL | — | ◇ UNVERIFIED |
| SMSyltone Marine INC | Gulfport | MS | — | ◇ UNVERIFIED |
| SCSymons CORP | Des Plaines | IL | — | ◇ UNVERIFIED |
| SMSynventive Molding Solutions | Peabody | MA | — | ◇ UNVERIFIED |
| SHSyracuse Heat Treating CORP | Van Buren | NY | — | ◇ UNVERIFIED |
| TGTait Global LLC | Lititz | PA | — | ◇ UNVERIFIED |
| TITeam Industrial Services Harbor City | Harbor City | CA | — | ◇ UNVERIFIED |
| TITeam Industrial Services INC | Huntington | WV | — | ◇ UNVERIFIED |
| TSTechniques Surfaces USA INC | Kearney | NE | — | ◇ UNVERIFIED |
| TPTemperature Processing CO | North Arlington | NJ | — | ◇ UNVERIFIED |
| TSTemp-rite Steel Treating | Harrison Township | MI | — | ◇ UNVERIFIED |
| TSTesla Service Center | Pensacola | FL | — | ◇ UNVERIFIED |
| TPThermal Processing Solutions INC | South Elgin | IL | — | ◇ UNVERIFIED |
| TPThermal Processing Solutions INC | Saint Charles | IL | — | ◇ UNVERIFIED |
| TSThermal Specialty Heat Treating LLC / Thermal Specialty Heat Treating Facili | Oklahoma City | OK | — | ◇ UNVERIFIED |
| TEThermo Electron | Pittsburgh | PA | — | ◇ UNVERIFIED |
| TMThermo-rite Mfg. CO. (1677010540) | Akron | OH | — | ◇ UNVERIFIED |
| TTThermo Techniques | Danville | IL | — | ◇ UNVERIFIED |
| TWTitan Wheel Company of Virginia, LLC | Saltville | VA | — | ◇ UNVERIFIED |
| TCTonys Clnr | Lancaster | PA | — | ◇ UNVERIFIED |
| TGTool Gauge & Machine Works INC | Tacoma | WA | — | ◇ UNVERIFIED |
| TVTotal Valve Solutions Formerly Enerflex Energy Systems INC. | Casper | WY | — | ◇ UNVERIFIED |
| TCTpc Ctp Sheeetmetal Division | Indianapolis | IN | — | ◇ UNVERIFIED |
| TMTp Mechanical Dc Fabrication | Columbus | OH | — | ◇ UNVERIFIED |
| TOTracker Ozark | Ozark | MO | — | ◇ UNVERIFIED |
| TOTransitional Opportunities CORP | Binghamton | NY | — | ◇ UNVERIFIED |
| TATrw Automotive - Machine Bldg Division | Winona | MN | — | ◇ UNVERIFIED |
| TBT&s Brass & Bronze Works INC | Travelers Rest | SC | — | ◇ UNVERIFIED |
| TTT & T Quality Electronics INC | Garden Grove | CA | — | ◇ UNVERIFIED |
| TMTucker's Machine and Steel Service INC. | Leesburg | FL | — | ◇ UNVERIFIED |
| TSTurbo Systems Incorporated | Kings Mountain | NC | — | ◇ UNVERIFIED |
| TCTurner Coatings INC. | Mulberry | FL | — | ◇ UNVERIFIED |
| TSTurner & Seymour Manufacturing Company | Torrington | CT | — | ◇ UNVERIFIED |
| TTwb | Smyrna | TN | — | ◇ UNVERIFIED |
| TTwb | Glasgow | KY | — | ◇ UNVERIFIED |
| TCTwb Company | Monroe | MI | — | ◇ UNVERIFIED |
| TCTwb Company, L.l.c. | Antioch | TN | — | ◇ UNVERIFIED |
| UMUniversal Marine & Industrial Services | Mobile | AL | — | ◇ UNVERIFIED |
| UPUpper Peninsula Machine & Engineering CO | Powers | MI | — | ◇ UNVERIFIED |
| UTUSA Today National Rack Center | Murfreesboro | TN | — | ◇ UNVERIFIED |
| UDU.s. Doe Central Training Facility | Kingston | TN | — | ◇ UNVERIFIED |
| UKUsdoe Kansas City National Security Campus (kcnsc) Nm Operations (nmo) | Albuquerque | NM | — | ◇ UNVERIFIED |