| SFSpecialty Foundry | Brockton | MA | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SASpectrum Aquatics | Missoula | MT | — | ◇ UNVERIFIED |
| SMSpill-stop Mfg. LLC | Melrose Park | IL | — | ◇ UNVERIFIED |
| SFSpitz Foundry INC | Hastings | NE | — | ◇ UNVERIFIED |
| SSSpraying System CO | Wheaton | IL | — | ◇ UNVERIFIED |
| SSSpraying Systems CO | Merrimack | NH | — | ◇ UNVERIFIED |
| SCSpring City Elec/spring City | Spring City | PA | — | ◇ UNVERIFIED |
| SISpringfield Iron Works INC | Chicopee | MA | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SCSst Custom Fabricators | Okeechobee | FL | — | ◇ UNVERIFIED |
| SPStack-on Products | Wauconda | IL | — | ◇ UNVERIFIED |
| SGStandard Golf CO | Cedar Falls | IA | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SIStanley Industries INC | Warrensville Hts | OH | — | ◇ UNVERIFIED |
| SLState Line Foundries INC | Roscoe | IL | — | ◇ UNVERIFIED |
| SFStaver Foundry CO | Virginia | MN | — | ◇ UNVERIFIED |
| SDSteris Distribution Center | Mentor | OH | — | ◇ UNVERIFIED |
| SCSterling Casting | Bluffton | IN | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SIStoll Industries, INC. | Abbeville | SC | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SFSturgis Foundry Corporation | Sturgis | MI | — | ◇ UNVERIFIED |
| SPSulzer Pumps | Portland | OR | — | ◇ UNVERIFIED |
| SPSulzer Pump Services (us) INC. | Mobile | AL | — | ◇ UNVERIFIED |
| SWSunshine Welding, Scallop | Port Canaveral | FL | — | ◇ UNVERIFIED |
| SDSuperior Derrick Services LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| SMSuperior Machine & Pattern, INC. | Talladega | AL | — | ◇ UNVERIFIED |
| SSSuperior Spindle Service LLC | Taylor | MI | — | ◇ UNVERIFIED |
| SCSupreme Cores, Incorporated | Milwaukee | WI | — | ◇ UNVERIFIED |
| SGSupreme Gear CO | Fraser | MI | — | ◇ 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 |
| TGTait Global LLC | Lititz | PA | — | ◇ UNVERIFIED |
| TFT&b Foundry Company | Cleveland | OH | — | ◇ UNVERIFIED |
| TITeam Industrial Services INC. | Mobile | AL | — | ◇ UNVERIFIED |
| TGTechnetics Group Daytona | Daytona Beach | FL | — | ◇ UNVERIFIED |
| TGTed Grob Corporation | Grafton | WI | — | ◇ UNVERIFIED |
| TTek-am | Springfield | VA | — | ◇ UNVERIFIED |
| TSTell Steel | Long Beach | CA | — | ◇ UNVERIFIED |
| TSTesla Service Center | Pensacola | FL | — | ◇ UNVERIFIED |
| TFTexas Foundaries | Lufkin | TX | — | ◇ UNVERIFIED |
| TBThe Blanchester Foundry CO | Blanchester | OH | — | ◇ UNVERIFIED |
| TCThe C.a. Lawton CO. | Minster | OH | — | ◇ UNVERIFIED |
| TFThe Foundry INC | Mead | WA | — | ◇ UNVERIFIED |
| TGThe General Casting Company - Toledo Street | Delaware | OH | — | ◇ UNVERIFIED |
| TEThermo Electron | Pittsburgh | PA | — | ◇ UNVERIFIED |
| TMThermo-rite Mfg. CO. (1677010540) | Akron | OH | — | ◇ UNVERIFIED |
| TSThe Shredder Company | Canutillo | TX | — | ◇ UNVERIFIED |
| TFThistle Foundry | Bluefield | VA | — | ◇ UNVERIFIED |
| TPThreaded Products CO | Richmond | MI | — | ◇ UNVERIFIED |
| TCTimkensteel CORP | Houston | TX | — | ◇ UNVERIFIED |
| TSTinco Sheet Metal INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| TWTitan Wheel Company of Virginia, LLC | Saltville | VA | — | ◇ UNVERIFIED |
| TJT J Mold and Tool CO INC | Saint Johnsbury | VT | — | ◇ UNVERIFIED |
| TCTonys Clnr | Lancaster | PA | — | ◇ UNVERIFIED |
| TGTool Gauge & Machine Works INC | Tacoma | WA | — | ◇ UNVERIFIED |
| TKTool King INC | Wheeling | IL | — | ◇ UNVERIFIED |
| TITotal Industries | South Bend | IN | — | ◇ UNVERIFIED |
| TVTotal Valve Solutions Formerly Enerflex Energy Systems INC. | Casper | WY | — | ◇ UNVERIFIED |
| TBToufayan Bakery INC | Ridgefield | NJ | — | ◇ UNVERIFIED |
| TTTowne Technologies INC | Somerville | NJ | — | ◇ 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 |
| TTTregets Tool & Engineering | Jackson | MI | — | ◇ UNVERIFIED |
| TATri Angle Metal Fab | Milton | VT | — | ◇ UNVERIFIED |
| TMTrident Machine Technologies, INC. | Hammond | IN | — | ◇ UNVERIFIED |
| TMTri-matics Mfg | Harrison Township | MI | — | ◇ UNVERIFIED |
| TMTri-way Manufacturing | Roseville | MI | — | ◇ UNVERIFIED |
| TATrw Automotive - Machine Bldg Division | Winona | MN | — | ◇ UNVERIFIED |
| TBT&s Brass & Bronze Works INC | Travelers Rest | SC | — | ◇ UNVERIFIED |
| TFTst Fab & Machine, LLC | Chesapeake | VA | — | ◇ 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 |
| UCUniversal Compression INC | Tulsa | OK | — | ◇ UNVERIFIED |
| UMUniversal Marine & Industrial Services | Mobile | AL | — | ◇ UNVERIFIED |
| UPUpper Peninsula Machine & Engineering CO | Powers | MI | — | ◇ UNVERIFIED |
| UNUsag Natick Ssc | Natick | MA | — | ◇ UNVERIFIED |
| UTUSA Today National Rack Center | Murfreesboro | TN | — | ◇ UNVERIFIED |
| UCUS Casting | Canton | OH | — | ◇ UNVERIFIED |
| UDU.s. Doe Central Training Facility | Kingston | TN | — | ◇ UNVERIFIED |
| UKUsdoe Kansas City National Security Campus (kcnsc) Nm Operations (nmo) | Albuquerque | NM | — | ◇ UNVERIFIED |
| USU S Forgecraft CORP. | Fort Smith | AR | — | ◇ UNVERIFIED |
| ULUS Lock & Hdwr Co/columbia | Columbia | PA | — | ◇ UNVERIFIED |
