| WMWestech Metal Fabrication, INC | San Diego | CA | — | ◐ LIKELY ACTIVE |
| WSWestern States Steel & Fab INC | Spokane | WA | 20–99 | ◐ LIKELY ACTIVE |
| WSWestmoreland Steel and Fabrication, INC. | Madison | PA | 1–19 | ◐ LIKELY ACTIVE |
| WSWilborn Steel | San Antonio | TX | 1–19 | ◐ LIKELY ACTIVE |
| WFWilliams Form Engineering Colorado | Golden | CO | 20–99 | ◐ LIKELY ACTIVE |
| WFWilliams Form Engineering Georgia | Lithia Springs | GA | 20–99 | ◐ LIKELY ACTIVE |
| WFWilliams Form Engineering Nebraska | Wayne | NE | 20–99 | ◐ LIKELY ACTIVE |
| WSWilliams Steel Company | Jackson | TN | 100–499 | ◐ LIKELY ACTIVE |
| WTWilson Trailer Yankton | Yankton | SD | 100–499 | ◐ LIKELY ACTIVE |
| WEWingfield Engineering Company, INC. | Goodwater | AL | 20–99 | ◐ LIKELY ACTIVE |
| WIWinkle Industries INC | Alliance | OH | 20–99 | ◐ LIKELY ACTIVE |
| WSWinston Steel, LLC - Log Cabin | Winston Salem | NC | 20–99 | ◐ LIKELY ACTIVE |
Wisconsin Oven CORP | East Troy | WI | — | ◐ LIKELY ACTIVE |
| WMWW Manufacturing | Livingston | TN | 20–99 | ◐ LIKELY ACTIVE |
| XMXtreme Marine Corporation | Maryville | TN | 100–499 | ◐ LIKELY ACTIVE |
| YBYaquina Boat Equipment, INC. | Toledo | OR | — | ◐ LIKELY ACTIVE |
| YMYetter Manufacturing CO. | Macomb | IL | — | ◐ LIKELY ACTIVE |
| YWYoung's Welding, Inc. | Chanute | KS | 20–99 | ◐ LIKELY ACTIVE |
| 1S121 Stover Dr LLC | Carlisle | PA | — | ◐ LIKELY ACTIVE |
| AIAllegiant Industrial Island Park | Beaumont | TX | — | ◐ LIKELY ACTIVE |
| AMAllison Marine Contractors Ii LLC - Allison Marine Amelia Facility | Amelia | LA | — | ◐ LIKELY ACTIVE |
| AAAmerican Architectural Metal Manufacturers, INC. | Allentown | PA | — | ◐ LIKELY ACTIVE |
| ACAmerican Cargo Group Trailers Llc/banks Twp Plt | Mcadoo | PA | — | ◐ LIKELY ACTIVE |
| ASAmerican Steel | Billings | MT | — | ◐ LIKELY ACTIVE |
| AFAshland Fabricating & Welding CO INC | Ashland | KY | — | ◐ LIKELY ACTIVE |
| AIAustin's Iron Works | Kansas City | MO | — | ◐ LIKELY ACTIVE |
| BIBachman Iron Works INC | Reading | PA | — | ◐ LIKELY ACTIVE |
| BIBestek Industries INC | San Antonio | TX | — | ◐ LIKELY ACTIVE |
| BIBrasstech INC - Carnegie | Santa Ana | CA | — | ◐ LIKELY ACTIVE |
| BFBristol Fiberlite Industries Incorporated | Santa Ana | CA | — | ◐ LIKELY ACTIVE |
| BIBrooklyn Industrial Coatings | Spokane | WA | — | ◐ LIKELY ACTIVE |
| BEBrunton Enterprises INC | Santa Fe Springs | CA | — | ◐ LIKELY ACTIVE |
| BFBucks Fabricating/hadley | Hadley | PA | — | ◐ LIKELY ACTIVE |
| CMCarroll Metal Works INC | National City | CA | — | ◐ LIKELY ACTIVE |
| CVChamplain Valley Equipment | Berlin | VT | — | ◐ LIKELY ACTIVE |
| COCmc of Georgia | Toccoa | GA | — | ◐ LIKELY ACTIVE |
| CACmp Advanced Mechanical Solutions | Binghamton | NY | — | ◐ LIKELY ACTIVE |
| CSCompton Steel CO INC | Compton | CA | — | ◐ LIKELY ACTIVE |
| CMConstruction Materials Inc/cmi Coating Group INC Dba Industrial Painting Service | Hugo | MN | — | ◐ LIKELY ACTIVE |
| DIDaniel Industrial Metals, INC | Birmingham | AL | — | ◐ LIKELY ACTIVE |
| DVDeerfield Valley Refab INC | Deerfield | MA | — | ◐ LIKELY ACTIVE |
| DFDesign Fabrication | Springfield | MO | — | ◐ LIKELY ACTIVE |
| DVDivision V Sheet Metal, INC | Saint Paul | MN | — | ◐ LIKELY ACTIVE |
| DFDm Fabrication | Sterling Heights | MI | — | ◐ LIKELY ACTIVE |
| FPFabricated Products of Tampa, INC. | Tampa | FL | — | ◐ LIKELY ACTIVE |
| FIFairlead Integrated | Portsmouth | VA | — | ◐ LIKELY ACTIVE |
| FMFarm-bilt Machine LLC | Gap | PA | — | ◐ LIKELY ACTIVE |
| FAFarr Apc | Jonesboro | AR | — | ◐ LIKELY ACTIVE |
| FCFlint Cliff Mfg CORP Dba Klein Mfg CORP | Burlington | IA | — | ◐ LIKELY ACTIVE |
| FSFmt Shipyard & Repair LLC - Fmt North Shipyard | Harvey | LA | — | ◐ LIKELY ACTIVE |
| GDGalland Dr Laydown Yard | Shelbeyville | TN | — | ◐ LIKELY ACTIVE |
| GIGamlet, Incorporated | York | PA | — | ◐ LIKELY ACTIVE |
| GFGeneral Fabricating Services, LLC | Coraopolis | PA | — | ◐ LIKELY ACTIVE |
| GDGettysburg Dry Clnr | Gettysburg | PA | — | ◐ LIKELY ACTIVE |
| GFG F Munich Welding CO LLC | Jeffersonville | IN | — | ◐ LIKELY ACTIVE |
| GIGoldco Industries | Loveland | CO | — | ◐ LIKELY ACTIVE |
| GPGreat Plains Mfg. - Assaria | Assaria | KS | — | ◐ LIKELY ACTIVE |
| GMGreenwell Machine Shop INC | Petoskey | MI | — | ◐ LIKELY ACTIVE |
| GCGulf Coast Marine Fabricators INC | Abbeville | LA | — | ◐ LIKELY ACTIVE |
| HRHannecard Roller Coatings INC. | Barberton | OH | — | ◐ LIKELY ACTIVE |
| HMHawk Metal Products INC | West Des Moines | IA | — | ◐ LIKELY ACTIVE |
| HSHd Supply Construction Supply LTD (wc0206) | Springfield | VA | — | ◐ LIKELY ACTIVE |
| HBHohmann & Barnard | Columbia | MD | — | ◐ LIKELY ACTIVE |
| HOHolt of Ca INC | Pleasant Grove | CA | — | ◐ LIKELY ACTIVE |
| HBHubler Bros INC | Clearfield | PA | — | ◐ LIKELY ACTIVE |
| HIHutchens Industries | Mansfield | MO | — | ◐ LIKELY ACTIVE |
| JUJem Unlimited Iron, INC. | Anaheim | CA | — | ◐ LIKELY ACTIVE |
| JEJmg Equipment CO - Holden | Holden | MO | — | ◐ LIKELY ACTIVE |
| JCJohnson Concrete Products CO. | Hastings | NE | — | ◐ LIKELY ACTIVE |
| JTJ Tec Industries | East Peoria | IL | — | ◐ LIKELY ACTIVE |
| KIKertz Ironworks INC | Saint Louis | MO | — | ◐ LIKELY ACTIVE |
| KSKrotz Springs Gas Plant | Krotz Springs | LA | — | ◐ LIKELY ACTIVE |
| LSLapeyre Stair, INC. | New Orleans | LA | — | ◐ LIKELY ACTIVE |
| LILexicon, INC. | Little Rock | AR | — | ◐ LIKELY ACTIVE |
| LILexicon, INC. | Blytheville | AR | — | ◐ LIKELY ACTIVE |
Lippert Components, INC. - Indiana Frame Division | Goshen | IN | — | ◐ LIKELY ACTIVE |
| LSLittell Steel Co/bridgewater | New Brighton | PA | — | ◐ LIKELY ACTIVE |
| LSLoudon Steel INC | Millington | MI | — | ◐ LIKELY ACTIVE |
| LDLouvers & Dampers INC | Florence | KY | — | ◐ LIKELY ACTIVE |
| LWL & W Fabricators INC. | Memphis | TN | — | ◐ LIKELY ACTIVE |
| MCMagnum Construction Co-midland | Midland | MI | — | ◐ LIKELY ACTIVE |
| MAMary a Smyth Nelson Et Al #15 Production Facility - Point Au Fer Field | Waterproof | LA | — | ◐ LIKELY ACTIVE |
| MFMas Fab, Incorporated Dba Formit Steel Company | Red Lion | PA | — | ◐ LIKELY ACTIVE |
| MIMcgregor Ind Inc/dunmore Plt | Dunmore | PA | — | ◐ LIKELY ACTIVE |
| MMMcswain Metal Fabrication, INC. | Englewood | CO | — | ◐ LIKELY ACTIVE |
| MJMegquire & Jones CORP | South Portland | ME | — | ◐ LIKELY ACTIVE |
| MIMid-park INC - Mid-park Highway | Leitchfield | KY | — | ◐ LIKELY ACTIVE |
| MFMidstream Fuel Service LLC (harbor Island) | Aransas Pass | TX | — | ◐ LIKELY ACTIVE |
| MMMidwestern Metals Building Additions | Topeka | KS | — | ◐ LIKELY ACTIVE |
| MBMinshew Brothers Steel Construction INC | Lakeside | CA | — | ◐ LIKELY ACTIVE |
| MTMmi Tank and Industrial Services | Phoenix | AZ | — | ◐ LIKELY ACTIVE |
| MMM M Systems Corporation | Pendergrass | GA | — | ◐ LIKELY ACTIVE |
| NNNewport News Shipbldg Oyster Pt Industrial Pk Opip | Newport News | VA | — | ◐ LIKELY ACTIVE |
| NVNew Vienna Metal Works INC | New Vienna | IA | — | ◐ LIKELY ACTIVE |
| NHNucor Harris Rebar - Zellwood | Zellwood | FL | — | ◐ LIKELY ACTIVE |
| NRNucor Rebar Fabrication Northeast LLC | Pawtucket | RI | — | ◐ LIKELY ACTIVE |
| NWNucor Wire Prods Pa | New Salem | PA | — | ◐ LIKELY ACTIVE |
| OIOxbo International CORP | Byron | NY | — | ◐ LIKELY ACTIVE |
| OBOzarks Barge & Dock Service, INC. | Gravois Mills | MO | — | ◐ LIKELY ACTIVE |
| PMParasal Mfg INC. | Valentine | NE | — | ◐ LIKELY ACTIVE |