| SESunrise Erectors | Canton | MA | — | ◇ UNVERIFIED |
| SMSunshine Metals | Corona | CA | — | ◇ UNVERIFIED |
| SWSunshine Welding, Scallop | Port Canaveral | FL | — | ◇ UNVERIFIED |
| SSSun Steel Company | University Park | IL | — | ◇ UNVERIFIED |
| SSunsteel,llc | Sunnyside | WA | — | ◇ UNVERIFIED |
| SVSun Valley Bronze, Inc. | Bellevue | ID | — | ◇ UNVERIFIED |
| SDSuper Duty, INC. | Hot Springs | AR | — | ◇ UNVERIFIED |
| SASuperior Architecture Mfg INC | Bell Gardens | CA | — | ◇ UNVERIFIED |
| SCSuperior Canopy Corporation | Finley | KY | — | ◇ UNVERIFIED |
| SCSuperior Contracting New Facility | Salina | KS | — | ◇ UNVERIFIED |
| SDSuperior Derrick Services LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| SDSuperior Drillpipe Manufacturing | Houston | TX | — | ◇ UNVERIFIED |
| SDSuperior Duct Fabrication, Inc. | Las Vegas | NV | — | ◇ UNVERIFIED |
| SESuperior Equipment & Service LLC | Sheridan | WY | — | ◇ UNVERIFIED |
| SFSuperior Fabrication Inc | Punta Gorda | FL | — | ◇ UNVERIFIED |
| SFSuperior Fabrication INC. | Canadian | TX | — | ◇ UNVERIFIED |
| SFSuperior Fabricators INC | Baldwin | LA | — | ◇ UNVERIFIED |
| SGSuperior Grinding and Sales, INC. | Claremore | OK | — | ◇ UNVERIFIED |
| SMSuperior Mason Products LLC | Homewood | AL | — | ◇ UNVERIFIED |
| SMSuperior Mason Products LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| SMSuperior Metals, Inc. | San Jose | CA | — | ◇ UNVERIFIED |
| SMSuperior Metalworks, INC. | Carlisle | PA | — | ◇ UNVERIFIED |
| SSSuperior Sheet Metal Company, INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| SSSuperior Sheet Metal, LLC | Hudson | NH | — | ◇ UNVERIFIED |
| SSSuperior Steel Connectors Inc | Bay Shore | NY | — | ◇ UNVERIFIED |
| SSSuperior Steel Connectors Inc | Ronkonkoma | NY | — | ◇ UNVERIFIED |
| SSSuperior Suppliers Network, LLC | Houghton | MI | — | ◇ UNVERIFIED |
 Superior Tank CO INC | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| STSuperior Tube Products, INC. | Davenport | IA | — | ◇ UNVERIFIED |
| SSSuper Steel LLC | Milwaukee | WI | — | ◇ UNVERIFIED |
| SSSuper Steel Products CORP | Milwaukee | WI | — | ◇ UNVERIFIED |
| SSSupervoid Systems, LLC | Prattville | AL | — | ◇ UNVERIFIED |
| SNSupply Network INC Dba Viking Supplynet & Fabrication Services | Santa Fe Spgs | CA | — | ◇ UNVERIFIED |
| SNSupply Network INC Dba Viking Supplynet & Fabrication Services | Hayward | CA | — | ◇ UNVERIFIED |
| SMSupreme Manufacutring, INC. | Stoneboro | PA | — | ◇ UNVERIFIED |
| SRSupreme Roofing Products, INC. | Tuscaloosa | AL | — | ◇ UNVERIFIED |
| SSSupreme Service & Specialty CO INC Thru Tubing Div | Broussard | LA | — | ◇ UNVERIFIED |
| SISurcore INC | Denver | CO | — | ◇ UNVERIFIED |
| SPSutter P. Dahlglen Enterprises INC. | Santa Clara | CA | — | ◇ UNVERIFIED |
| SHSutton Holdings LLC | Bronson | MI | — | ◇ UNVERIFIED |
| SVS & V Fabrications INC | Camden | TN | — | ◇ UNVERIFIED |
| SRSvm - Reno | Sparks | NV | — | ◇ UNVERIFIED |
| SFSweatshop Fabrication | Robstown | TX | — | ◇ UNVERIFIED |
| SLSwedge, LLC | Portland | OR | — | ◇ UNVERIFIED |
| SASwift-cor Aerospace, INC. | Gardena | CA | — | ◇ UNVERIFIED |
| SHSwisher Heating & Air Conditioning, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| SMS&w Metal Products INC | Gilbertsville | PA | — | ◇ UNVERIFIED |
| SPSycamore Precision Machine INC | Genoa | IL | — | ◇ UNVERIFIED |
| SMSyer Metal Works LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| SPSyitz Properties, LLC | Green Bay | WI | — | ◇ UNVERIFIED |
| SMSyltone Marine INC | Gulfport | MS | — | ◇ UNVERIFIED |
| SCSymons CORP | Des Plaines | IL | — | ◇ UNVERIFIED |
| SSSymons Steel Forms Div | New Braunfels | TX | — | ◇ UNVERIFIED |
| SMSynventive Molding Solutions | Peabody | MA | — | ◇ UNVERIFIED |
| SISystems in Advanced Mechanical | Crofton | MD | — | ◇ UNVERIFIED |
| SISystems, INC. | Germantown | WI | — | ◇ UNVERIFIED |
| SSzaboworks | San Francisco | CA | — | ◇ UNVERIFIED |
| TDT43 Designs | Hohenwald | TN | — | ◇ UNVERIFIED |
| TMTabaro's Metal Works | Bayamon | PR | — | ◇ UNVERIFIED |
| TMTabla Mechanical LLC | Kapolei | HI | — | ◇ UNVERIFIED |
| TITacoma Iron Work | Spanaway | WA | — | ◇ UNVERIFIED |
| TOTAC Operating Company | Draper | UT | — | ◇ UNVERIFIED |
| TGTait Global LLC | Lititz | PA | — | ◇ UNVERIFIED |
| TITalley Iron Works, LLC | Pearl River | LA | — | ◇ UNVERIFIED |
| TMTalley Metal Products | Hagerstown | MD | — | ◇ UNVERIFIED |
| TITallman Iron Works INC | Maryville | TN | — | ◇ UNVERIFIED |
| TLTallman Ladders INC | Hood River | OR | — | ◇ UNVERIFIED |
| TMTalton's Metal Products, INC. | Fuquay Varina | NC | — | ◇ UNVERIFIED |
| TMTambe Metal Products INC | Victor | NY | — | ◇ UNVERIFIED |
| TITamer Industries | Somerset | MA | — | ◇ UNVERIFIED |
| TATampa Amalgamated Steel | Tampa | FL | — | ◇ UNVERIFIED |
| TPTampa Pipe & Welding, INC. | Galveston | TX | — | ◇ UNVERIFIED |
| TSTampa Sheet Metal Company | Tampa | FL | — | ◇ UNVERIFIED |
| TCT & C PATTERSON PROPERTIES, LLC | Georgetown | IN | — | ◇ UNVERIFIED |
| TST & S Manufacturing, LLC | Rochester | MN | — | ◇ UNVERIFIED |
| TMTandem Metals, INC. | University Park | IL | — | ◇ UNVERIFIED |
| TWTandum Way Properties LLC | Norco | CA | — | ◇ UNVERIFIED |
| THTang How Brothers, INC. | Frederiksted St. Croix | VI | — | ◇ UNVERIFIED |
| TCTank Connection | Galesburg | KS | — | ◇ UNVERIFIED |
| TMTanner & Murley of Dutchess, LLC | Poughkeepsie | NY | — | ◇ UNVERIFIED |
| TITanzi Incorporated | North Providence | RI | — | ◇ UNVERIFIED |
| TMTaprite-fassco Mfg., INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| TSTarget Sheetmetal and Manufacturing, INC. | Lubbock | TX | — | ◇ UNVERIFIED |
| TSTarrier Steel CO INC | Columbus | OH | — | ◇ UNVERIFIED |
| TMTartan Manufacturing, INC. | Kansas City | KS | — | ◇ UNVERIFIED |
| TSTassie Siding INC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| TITate INC | Saint Paul | VA | — | ◇ UNVERIFIED |
| TITate, INC. | Pocahontas | AR | — | ◇ UNVERIFIED |
| TFTaylor Forge Engineered Systems - Greeley | Garnett | KS | — | ◇ UNVERIFIED |
| TFTaylor Forge Engineered Systems - Paola | Paola | KS | — | ◇ UNVERIFIED |
| TMTaylor Metal INC | Salem | OR | — | ◇ UNVERIFIED |
| TFTAZ Fabrication Limited Liability Company | Prospect | OR | — | ◇ UNVERIFIED |
| TITbc INC | Green Bay | WI | — | ◇ UNVERIFIED |
| TITbei, INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| TBT. Bruce Sales, INC. | West Middlesex | PA | — | ◇ UNVERIFIED |
| TITcb Industrial INC | Modesto | CA | — | ◇ UNVERIFIED |
| TMTC Machine & Manufacturing, Inc. | Tulsa | OK | — | ◇ UNVERIFIED |
| THT&CM Holdings, LLC | Kansas City | MO | — | ◇ UNVERIFIED |
| TSTcr Systems LLC | Decatur | IL | — | ◇ UNVERIFIED |
| TSTcr Systems, L.l.c. | Havana | IL | — | ◇ UNVERIFIED |
