| SISarcol INC | Chicago | IL | — | ◇ UNVERIFIED |
| SISat Industries, INC. | Schertz | TX | — | ◇ UNVERIFIED |
| SMSatterfield Manufacturing Solutions LLC | La Porte | IN | — | ◇ UNVERIFIED |
| SSSb Specialty Metals LLC | Meadville | PA | — | ◇ UNVERIFIED |
| SCScrew CORP | Industry | CA | — | ◇ UNVERIFIED |
| SCS & C Tool & Manufacturing, INC. | Livonia | MI | — | ◇ UNVERIFIED |
| SPSeabrook Plastics INC | Norton Shores | MI | — | ◇ UNVERIFIED |
| SPSeaway Pattern Manufacturing, Inc | Toledo | OH | — | ◇ UNVERIFIED |
| SGSfs Group USA INC. | Reading | PA | — | ◇ UNVERIFIED |
| SGSfs Group USA Inc/wyomissing | Wyomissing | PA | — | ◇ UNVERIFIED |
| SISfs Intec Screw Mfg Exeter Plt | Reading | PA | — | ◇ UNVERIFIED |
| SFShamrock Fastener Technologies | Sterling Hts | MI | — | ◇ UNVERIFIED |
| SPShannon Precision Fastener LLC | Madison Heights | MI | — | ◇ UNVERIFIED |
| SMSharp Machine INC | Cannon Falls | MN | — | ◇ UNVERIFIED |
| SCShur-lok CORP | Irvine | CA | — | ◇ UNVERIFIED |
| STSiem Tool Company | Latrobe | PA | — | ◇ UNVERIFIED |
| SMSierra - Manufacturing Corporation | Addison | IL | — | ◇ UNVERIFIED |
| STSierra Tool & Die INC | Tuolumne | CA | — | ◇ UNVERIFIED |
| STSigg Tool & Machine Products | Levittown | PA | — | ◇ UNVERIFIED |
| SPSilgan Plastics Corporation | Langhorne | PA | — | ◇ UNVERIFIED |
| SMSilver Maple LLC | Hillman | MI | — | ◇ UNVERIFIED |
| SSSimpson Strong-tie | Gallatin | TN | — | ◇ UNVERIFIED |
| SMSinter Metals INC | Richton Park | IL | — | ◇ UNVERIFIED |
| STSirois Tool Company, INC. | Berlin | CT | — | ◇ UNVERIFIED |
| SESk Engineering | Long Beach | CA | — | ◇ UNVERIFIED |
| SMS & M Machining Company | Wixom | MI | — | ◇ UNVERIFIED |
| SPSorenson Precision | Goleta | CA | — | ◇ UNVERIFIED |
| STSoutheastern Tool Co., INC. | Aiken | SC | — | ◇ UNVERIFIED |
| SASouthern Anchor Bolt CO. | Harlem | GA | — | ◇ UNVERIFIED |
| SLSpace Lok Incorporated | Gardena | CA | — | ◇ UNVERIFIED |
| STSpark Tool, INC. | Meadville | PA | — | ◇ UNVERIFIED |
| SISpartan Industrial Holdings Llc | Grandville | MI | — | ◇ UNVERIFIED |
| STSpartan Tool & Die | Sinclairville | NY | — | ◇ UNVERIFIED |
| SBSpecialty Bolt & Screw, INC. | Agawam | MA | — | ◇ UNVERIFIED |
| SMSpecialty Machine Co., INC. | Gastonia | NC | — | ◇ UNVERIFIED |
| STSpecialty Tooling Systems INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| STSps Technologies INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| STSps Technologies LLC | Nashville | TN | — | ◇ UNVERIFIED |
| STSps Technologies, LLC | Arlington | TX | — | ◇ UNVERIFIED |
| SNStabio North America | Union Grove | WI | — | ◇ UNVERIFIED |
| SStaffmark | Rogers | AR | — | ◇ UNVERIFIED |
| SNStandard Nut & Bolt Company | Cumberland | RI | — | ◇ UNVERIFIED |
| SEStanley Engineered Fastening | Decorah | IA | — | ◇ UNVERIFIED |
| SMSteinkamp Moulding LTD | Erlanger | KY | — | ◇ UNVERIFIED |
| SSSterling Steel Cutting | Jonesville | MI | — | ◇ UNVERIFIED |
| SFStillwater Fasteners | Freetown, Town of | MA | — | ◇ UNVERIFIED |
| SMSt. Marys Tool & Die Co., INC. | Saint Marys | PA | — | ◇ UNVERIFIED |
| SPStm Precision Tool LTD | Warrington | PA | — | ◇ UNVERIFIED |
| SWStud Welding Products INC | Hayward | CA | — | ◇ UNVERIFIED |
| SMSunflower Mfg CO | Cawker City | KS | — | ◇ UNVERIFIED |
| SISuperbolt, INC | Carnegie | PA | — | ◇ UNVERIFIED |
| TATab and Slot LLC | Isanti | MN | — | ◇ UNVERIFIED |
| TBTauber Brothers Tool and Die Company | Harwood Heights | IL | — | ◇ UNVERIFIED |
| TCTaylor Chuck Enterprises | Goodlettsville | TN | — | ◇ UNVERIFIED |
| TETcr Engineered Components LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| TTTdm Troy Design & Manufacturing CO. | Chicago | IL | — | ◇ UNVERIFIED |
| TCTecni-die CO INC | New Freedom | PA | — | ◇ UNVERIFIED |
| TLTellma LLC | Freeborn | MN | — | ◇ UNVERIFIED |
| TBTennessee Bolt & Screw CO INC | Memphis | TN | — | ◇ UNVERIFIED |
| TMTennessee Machine Works INC | Chattanooga | TN | — | ◇ UNVERIFIED |
| TOTesla of Michigan | Grand Rapids | MI | — | ◇ UNVERIFIED |
| TATextron Aerospace Fasteners | Santa Ana | CA | — | ◇ UNVERIFIED |
| TFTextron Fastening Systems INC | Rockford | IL | — | ◇ UNVERIFIED |
| TCTfs Commercial Solutions Group Raycarl Prods | Rockford | IL | — | ◇ UNVERIFIED |
| TLTheaccuratetoolsshop LLC | Edgewater | NJ | — | ◇ UNVERIFIED |
| TLThe Leading Edge Supply, Inc. | Lake Orion | MI | — | ◇ UNVERIFIED |
| TMThe Mold Shop LLC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| TTherma-flite | Benicia | CA | — | ◇ UNVERIFIED |
| TTThompson Tool - Die INC | Cambridge | MN | — | ◇ UNVERIFIED |
| TDTierone Designs LLC | Dickson | TN | — | ◇ UNVERIFIED |
| TPTinnerman Palnut Engineerer Products | Mountainside | NJ | — | ◇ UNVERIFIED |
| TPTipco Punch,inc. | Hamilton | OH | — | ◇ UNVERIFIED |
| TTTmc Tool INC | Plymouth | MN | — | ◇ UNVERIFIED |
| TFTN Fastener LLC | Clarksville | TN | — | ◇ UNVERIFIED |
| TMTnn Manufacturing | Houston | TX | — | ◇ UNVERIFIED |
| TFTom Fox Enterprise, INC. | Albion | NY | — | ◇ UNVERIFIED |
| TDToolex, Division of Composidie, INC. | Vandergrift | PA | — | ◇ UNVERIFIED |
| TMTooling Machining and Design INC | Winona | MN | — | ◇ UNVERIFIED |
| TTTop Tool Company | Minneapolis | MN | — | ◇ UNVERIFIED |
| TATopura America Fastener, INC. | Richardsville | KY | — | ◇ UNVERIFIED |
| THTramec Hill Fastener, LLC | Rock Falls | IL | — | ◇ UNVERIFIED |
| TSTriad Steel Rule Dies, INC. | Colfax | NC | — | ◇ UNVERIFIED |
| TDTriangle Dies and Supplies INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| TTTriangle Tool and Die Corporation | Santa Fe Spgs | CA | — | ◇ UNVERIFIED |
 Trinity Tool & Manufacturing LLC | Brookfield | WI | — | ◇ UNVERIFIED |
| Trinity Tool & Manufacturing LLC | Jackson | WI | — | ◇ UNVERIFIED |
| TTTrinity Tools INC | North Tonawanda | NY | — | ◇ UNVERIFIED |
| TETrio Engineering INC | Panorama City | CA | — | ◇ UNVERIFIED |
| TITriton Industries, INC. | Newport News | VA | — | ◇ UNVERIFIED |
| TSTriumph Structures Kansas City | Edgerton | KS | — | ◇ UNVERIFIED |
| TTTri-v Tool & Mfg. CO | Omaha | NE | — | ◇ UNVERIFIED |
| TDTroy Design & Mfg CO | Warren | MI | — | ◇ UNVERIFIED |
| TLTru-cut LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| TTTru-line Tool and Manufacturing Company INC | Eagleville | TN | — | ◇ UNVERIFIED |
| TMTruly Magic Products INC | Buffalo | NY | — | ◇ UNVERIFIED |
| TITru-Position, Inc. | Slinger | WI | — | ◇ UNVERIFIED |
| TATrw Automotive - Machine Bldg Division | Winona | MN | — | ◇ UNVERIFIED |
| TCTwin City Tool & Engineering INC | Blaine | MN | — | ◇ UNVERIFIED |
| TTTyger Tool | Stratford | CT | — | ◇ UNVERIFIED |
| UPUltra Polishing, INC. | Schaumburg | IL | — | ◇ UNVERIFIED |
