| SESmith Equipment and Welding | Prineville | OR | — | ◇ UNVERIFIED |
| SMSmiths Machine and Welding Company INC | Brookhaven | MS | — | ◇ UNVERIFIED |
| SISmt Incorporated - Raleigh Plant | Raleigh | NC | — | ◇ UNVERIFIED |
| SASnappy Adp Div of Standex International | Detroit Lakes | MN | — | ◇ UNVERIFIED |
| SISnyder Industries INC | Seattle | WA | — | ◇ UNVERIFIED |
| SPSoramatic Precision Machining | Warren | MI | — | ◇ UNVERIFIED |
| SBSotek Belrix | Hamburg | NY | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | MA | — | ◇ UNVERIFIED |
| SMSoutheastern Metals | Jacksonville | FL | — | ◇ UNVERIFIED |
| SPSoutheastern Plateworks | Birmingham | AL | — | ◇ UNVERIFIED |
| SSSoutheastern Stud & Components, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| STSoutheastern Tool & Die | Aberdeen | NC | — | ◇ UNVERIFIED |
| SESouthern Erectors INC | Pensacola | FL | — | ◇ UNVERIFIED |
| SMSouthern Machinery CORP | Lakeland | FL | — | ◇ UNVERIFIED |
| SISparkman Industries Plant 2 | Victoria | TX | — | ◇ UNVERIFIED |
| SSSpeciality Stairs and Miscellaneous Fabrication INC | Pearl | MS | — | ◇ UNVERIFIED |
| SGSpecialty Groups INC Shop | Lost Creek | WV | — | ◇ UNVERIFIED |
| SSSpecialty Steel Services Facility | Philadelphia | PA | — | ◇ UNVERIFIED |
| STSpecialty Tank & Equip CO | Jacksonville | FL | — | ◇ UNVERIFIED |
| SSSportsman Steel Safes | Long Beach | CA | — | ◇ UNVERIFIED |
| SFSpx Flow US LLC - Millstead Way | Rochester | NY | — | ◇ UNVERIFIED |
| SWSsab Wear Solutions LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| SPStainless Process Systems | Oxnard | CA | — | ◇ UNVERIFIED |
 Standard Machine Works INC | Houston | TX | — | ◇ UNVERIFIED |
| STStandard Technologies & Machine CO | Wilmington | DE | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | — | ◇ UNVERIFIED |
| SBStandley Batch Systems INC | Cape Girardeau | MO | — | ◇ UNVERIFIED |
| SIStanley Industries INC | Warrensville Hts | OH | — | ◇ UNVERIFIED |
| SMStanwade Metal Products | Fowler | OH | — | ◇ UNVERIFIED |
| SFState Fabricators, INC. | Farmingtn Hls | MI | — | ◇ UNVERIFIED |
| SCSteel City CORP | Youngstown | OH | — | ◇ UNVERIFIED |
| SFSteel Fab | Abingdon | VA | — | ◇ UNVERIFIED |
| STSteel Tank & Fabricating CO. | Mancelona | MI | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Ohio | Warren | OH | — | ◇ UNVERIFIED |
| SMSteffes Metal Products, LLC - Grand Forks West | Grand Forks | ND | — | ◇ UNVERIFIED |
| SMStephens Metal Products | Yakima | WA | — | ◇ UNVERIFIED |
| SCSterling Custom Sheet Metal | Magnolia | TX | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt Lucie County International Airport | Fort Pierce | FL | — | ◇ UNVERIFIED |
| SCStructural Composites Ind | Pomona | CA | — | ◇ UNVERIFIED |
| SWStruthers Wells Corp/warren | Warren | PA | — | ◇ UNVERIFIED |
| SSSudden Services Inc, Distribution and Operations Center | Philadelphia | MS | — | ◇ UNVERIFIED |
| SPSulzer Pumps | Portland | OR | — | ◇ UNVERIFIED |
| SPSulzer Pump Services (us) INC. | Mobile | AL | — | ◇ UNVERIFIED |
| SFSunbelt Fabricator | Steele | AL | — | ◇ UNVERIFIED |
| SFSuperior Fabrication & Welding LLC | Punta Gorda | FL | — | ◇ UNVERIFIED |
| SMSuperior Machine & Pattern, INC. | Talladega | AL | — | ◇ UNVERIFIED |
| TCTank Components Industries | Springfield | MO | — | ◇ UNVERIFIED |
| TCTankcraft CORP | Walworth | WI | — | ◇ UNVERIFIED |
| TPTank Partners | Seguin | TX | — | ◇ UNVERIFIED |
| TSTank Solutions Inc/smock Plt | Smock | PA | — | ◇ UNVERIFIED |
| TATaylor-wharton America | Baytown | TX | — | ◇ UNVERIFIED |
| TITeam Industrial Services INC. | Mobile | AL | — | ◇ UNVERIFIED |
| TGTechnetics Group Daytona | Daytona Beach | FL | — | ◇ UNVERIFIED |
| TSTechno Steel LLC | Darlington | SC | — | ◇ UNVERIFIED |
| TGTed Grob Corporation | Grafton | WI | — | ◇ UNVERIFIED |
| TTek-am | Springfield | VA | — | ◇ UNVERIFIED |
| TSTell Steel | Long Beach | CA | — | ◇ UNVERIFIED |
| TITenere INC Wheat Ridge Div.cn | Wheat Ridge | CO | — | ◇ UNVERIFIED |
| TATennessee Awning Mfg CO | Hendersonville | TN | — | ◇ UNVERIFIED |
| TDTennessee Dept. of Trans. (closed) | Nashville | TN | — | ◇ UNVERIFIED |
| TSTexas Steel Processing | Houston | TX | — | ◇ UNVERIFIED |
| TAThe Airolite Company | Marietta | OH | — | ◇ UNVERIFIED |
| TIThe Iron Shop | Venice | FL | — | ◇ UNVERIFIED |
| TEThermal Engineering International | Sapulpa | OK | — | ◇ UNVERIFIED |
 Thermal Equipment CORP | Compton | CA | — | ◇ UNVERIFIED |
| TRThe Roberts Company | Winterville | NC | — | ◇ UNVERIFIED |
| TRThe Rolling Stock Company | Sarasota | FL | — | ◇ UNVERIFIED |
| TSThe Sterling Blower CO INC | Forest | VA | — | ◇ UNVERIFIED |
| TTThe Troxel Company | Moscow | TN | — | ◇ UNVERIFIED |
| TVThe Vollrath Co., LLC | Newport | MN | — | ◇ UNVERIFIED |
| TFThompson Fabricating, LLC | Tarrant | AL | — | ◇ UNVERIFIED |
| TRThree Rivers Crane, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| TITifa Intl LLC | Millington | NJ | — | ◇ UNVERIFIED |
| TCTimkensteel CORP | Houston | TX | — | ◇ UNVERIFIED |
| TMTimmerman Mfg., INC. | Conover | NC | — | ◇ UNVERIFIED |
| TSTinco Sheet Metal INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| TMTomsicek Manufacturing CO | Ithaca | NE | — | ◇ UNVERIFIED |
| TITorwel Industries | Worcester | MA | — | ◇ UNVERIFIED |
| TITotal Industries | South Bend | IN | — | ◇ UNVERIFIED |
| TBToufayan Bakery INC | Ridgefield | NJ | — | ◇ UNVERIFIED |
| TTTowne Technologies INC | Somerville | NJ | — | ◇ UNVERIFIED |
| TFTradeline Fabricating | Lawrenceburg | IN | — | ◇ UNVERIFIED |
| TMTramont Manufacturing LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| TTranter | Houston | TX | — | ◇ UNVERIFIED |
| TTTregets Tool & Engineering | Jackson | MI | — | ◇ UNVERIFIED |
| TETrend Electronics INC | Gallatin | TN | — | ◇ UNVERIFIED |
| TTTrend Technologies LLC | Chino | CA | — | ◇ UNVERIFIED |
| TBTriangle Brass Manufacturing CO INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| TATri Angle Metal Fab | Milton | VT | — | ◇ UNVERIFIED |
| TMTrident Machine Technologies, INC. | Hammond | IN | — | ◇ UNVERIFIED |
| TMTri-matics Mfg | Harrison Township | MI | — | ◇ UNVERIFIED |
| TFTri-metal Fabrication INC | Plainview | NY | — | ◇ UNVERIFIED |
| TCTrinity Containers LLC / Plt 27 | Tulsa | OK | — | ◇ UNVERIFIED |
| TITrinity Inds INC Plant 04 | Rocky Mount | NC | — | ◇ UNVERIFIED |
| TITrinity Industries Plant 127 Stearns Airport Equip | Fort Worth | TX | — | ◇ UNVERIFIED |
| TITrinity Industries Plant 17 | Longview | TX | — | ◇ UNVERIFIED |
| TTTrinity Tank Car INC Plt 110 | Longview | TX | — | ◇ UNVERIFIED |
| TTTrinity Tank Car INC Plt 194 | Longview | TX | — | ◇ UNVERIFIED |
| TRTri-state Roofing & Sheet Metal | Davisville | WV | — | ◇ UNVERIFIED |
