| SFStaver Foundry CO | Virginia | MN | — | ◇ UNVERIFIED |
| STS Taylor Heirs 14 #3 Tank Battery - Haynesville Field | Haynesville | LA | — | ◇ UNVERIFIED |
| SISteelcase INC | Athens | AL | — | ◇ UNVERIFIED |
| SHSteel Heddle LLC | Greenville | SC | — | ◇ UNVERIFIED |
| SPSteel Painters INC Columbia Way | Vancouver | WA | — | ◇ UNVERIFIED |
| SPSteel Processing CO | Warren | MI | — | ◇ UNVERIFIED |
| SRSteel Related Technology | Huger | SC | — | ◇ UNVERIFIED |
| SSteelscape | Fairfield | AL | — | ◇ UNVERIFIED |
| SSteelscape | Richmond | CA | — | ◇ UNVERIFIED |
| SFSteelscape Fairfield | Fairfield | AL | — | ◇ UNVERIFIED |
| STSteel Tank & Fabricating CO. | Mancelona | MI | — | ◇ UNVERIFIED |
| STSteel Technologies | Mission | TX | — | ◇ UNVERIFIED |
| STSteel Technologies Lcc | Huger | SC | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Mira Loma | CA | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Eminence | KY | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Mishawaka | IN | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Santa Teresa | NM | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Ottawa | OH | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Willoughby | OH | — | ◇ UNVERIFIED |
| SWSteel Warehouse CO LLC | South Bend | IN | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Milwaukee | Oak Creek | WI | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Ohio | Warren | OH | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Portage | Portage | IN | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Quad Cities | Rock Island | IL | — | ◇ UNVERIFIED |
| SMSteffes Metal Products, LLC - Grand Forks West | Grand Forks | ND | — | ◇ UNVERIFIED |
| SMStephens Metal Products | Yakima | WA | — | ◇ UNVERIFIED |
 Stephens Pipe & Steel LLC Decatur Facility | Russell Springs | KY | — | ◇ UNVERIFIED |
| SDSteris Distribution Center | Mentor | OH | — | ◇ UNVERIFIED |
| SBSterling Boiler & Mechanical LLC | Evansville | IN | — | ◇ UNVERIFIED |
| SCSterling Casting | Bluffton | IN | — | ◇ UNVERIFIED |
| SCSterling Custom Sheet Metal | Magnolia | TX | — | ◇ UNVERIFIED |
| SSSterling Stainless Tube CORP | Englewood | CO | — | ◇ UNVERIFIED |
| SRSteve Reiff Incorporated | South Whitley | IN | — | ◇ UNVERIFIED |
| SMStevken Manufacturing | Billerica | MA | — | ◇ UNVERIFIED |
| SEStewart Efi Finishing | El Paso | TX | — | ◇ UNVERIFIED |
| SMStg/industrialex Manufacturing | Colorado Springs | CO | — | ◇ UNVERIFIED |
| SFStillwater Fasteners | Freetown, Town of | MA | — | ◇ UNVERIFIED |
| SLSt. Louis Metallizing Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt Louis Plating Company Inc-st Louis Plating Company INC | Saint Louis | MO | — | ◇ UNVERIFIED |
| SLSt Louis Screw & Bolt | Madison | IL | — | ◇ UNVERIFIED |
| SLSt Lucie County International Airport | Fort Pierce | FL | — | ◇ UNVERIFIED |
| SIStolberger INC. Dba Wardwell Braiding CO. | Central Falls | RI | — | ◇ UNVERIFIED |
| SMStolle Machineryco North Canton | North Canton | OH | — | ◇ UNVERIFIED |
| SIStoll Industries, INC. | Abbeville | SC | — | ◇ UNVERIFIED |
| SPStork Prints America (spgprints America) | Charlotte | NC | — | ◇ UNVERIFIED |
| SSStork Screens America Incorporated | Charlotte | NC | — | ◇ UNVERIFIED |
| SAStratford Army Engine Plant | Stratford | CT | — | ◇ UNVERIFIED |
| SMStratford Metal Finishing | Winston Salem | NC | — | ◇ UNVERIFIED |
| SPStreamwood Plating CO | Streamwood | IL | — | ◇ UNVERIFIED |
| SPStreet & Performance, INC. | Mena | AR | — | ◇ UNVERIFIED |
| SAStrickland Agriculture Services Incorporated | Spring Hope | NC | — | ◇ UNVERIFIED |
| SOStripmasters of Illinois | Granite City | IL | — | ◇ UNVERIFIED |
| SWStruthers Wells Corp/warren | Warren | PA | — | ◇ UNVERIFIED |
| SCStupp Coatings LLC | Baton Rouge | LA | — | ◇ UNVERIFIED |
| SLSturdy Lantern Manufacturing | Franklin | MA | — | ◇ UNVERIFIED |
| SFSturgis Foundry Corporation | Sturgis | MI | — | ◇ UNVERIFIED |
| SVStutzman Virgil M INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| SSSudden Services Inc, Distribution and Operations Center | Philadelphia | MS | — | ◇ UNVERIFIED |
| SPSuffern Plating | Lodi | NJ | — | ◇ UNVERIFIED |
| SPSulzer Pumps | Portland | OR | — | ◇ UNVERIFIED |
| SPSulzer Pump Services (us) INC. | Mobile | AL | — | ◇ UNVERIFIED |
| SMSummit Marine | Morton | IL | — | ◇ UNVERIFIED |
| SMSummit Marine | Peoria | IL | — | ◇ UNVERIFIED |
| SPSumner Plating CO | Honeoye Falls | NY | — | ◇ UNVERIFIED |
| SFSunbelt Fabricator | Steele | AL | — | ◇ UNVERIFIED |
| SHSuncoast Heat Treat INC | Palm Beach Gardens | FL | — | ◇ UNVERIFIED |
| SMSunflower Mfg CO | Cawker City | KS | — | ◇ UNVERIFIED |
| SCSunline Coach Co-plant#2 | Denver | PA | — | ◇ UNVERIFIED |
| SWSunshine Welding, Scallop | Port Canaveral | FL | — | ◇ UNVERIFIED |
| SSSunwest Silver Company INC | Albuquerque | NM | — | ◇ UNVERIFIED |
| SCSuper Chrome INC | Asbury Park | NJ | — | ◇ UNVERIFIED |
| SCSuperior Coating CORP | Belvidere | IL | — | ◇ UNVERIFIED |
| SDSuperior Derrick Services LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| SFSuperior Finishing | Providence | RI | — | ◇ UNVERIFIED |
| SISuperior Industrial Coating INC | Racine | WI | — | ◇ UNVERIFIED |
| SISuperior Industries Southwest Division | Prescott Valley | AZ | — | ◇ UNVERIFIED |
| SMSuperior Machine & Pattern, INC. | Talladega | AL | — | ◇ UNVERIFIED |
| SMSuperior Metal Finishing INC | Gardena | CA | — | ◇ UNVERIFIED |
| SMSuperior Metal Finishing Site | Tualatin | OR | — | ◇ UNVERIFIED |
| SMSuperior Metal Polishing | Huntington Park | CA | — | ◇ UNVERIFIED |
| SPSuperior Plating INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| SPSuperior Process Company | Framingham | MA | — | ◇ UNVERIFIED |
| SSSuperior Spindle Service LLC | Taylor | MI | — | ◇ UNVERIFIED |
| SSSuper Surface Techna | Mukilteo | WA | — | ◇ UNVERIFIED |
| SBSupreme Bumpers INC | Toledo | OH | — | ◇ UNVERIFIED |
| SCSupreme Cores, Incorporated | Milwaukee | WI | — | ◇ UNVERIFIED |
| SASurface Activation Technologies LLC | Troy | MI | — | ◇ UNVERIFIED |
| SCSurfacetec CORP | Bensenville | IL | — | ◇ UNVERIFIED |
| STSurface Treatment Technologies | Halethorpe | MD | — | ◇ UNVERIFIED |
| SFSurftech Finishes CO INC | Kent | WA | — | ◇ UNVERIFIED |
| SISurgichrome INC | Clackamas | OR | — | ◇ UNVERIFIED |
| SUSuruga USA CORP | Addison | IL | — | ◇ UNVERIFIED |
| SZSussex Zinc Plating INC | Sussex | WI | — | ◇ UNVERIFIED |
| SMSwaim Metals Incorporated | High Point | NC | — | ◇ UNVERIFIED |
| SLSwarovski Lighting LTD | Plattsburgh | NY | — | ◇ UNVERIFIED |
| STSwenson Technology INC | Harvey | IL | — | ◇ UNVERIFIED |
| SLSwiss Lenox | Arvada | CO | — | ◇ UNVERIFIED |
| SUSwissturn USA INC | Oxford | MA | — | ◇ UNVERIFIED |
| SPSycamore Precision Machine INC | Genoa | IL | — | ◇ UNVERIFIED |
| SMSyltone Marine INC | Gulfport | MS | — | ◇ UNVERIFIED |
