| 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 |
| WIWoodward, Incorporated | Mars | PA | 20–99 | ◐ LIKELY ACTIVE |
| WSW Silver | Vinton | TX | 100–499 | ◐ LIKELY ACTIVE |
| WMWva Manufacturing Company, LLC | Alloy | WV | 100–499 | ◐ LIKELY ACTIVE |
| WSWylie Steel Fabricators INC | Springfield | TN | 20–99 | ◐ LIKELY ACTIVE |
| XMXtreme Marine Corporation | Maryville | TN | 100–499 | ◐ LIKELY ACTIVE |
| YBYaquina Boat Equipment, INC. | Toledo | OR | — | ◐ LIKELY ACTIVE |
| YCYellow Creek Coating Services | Iuka | MS | 20–99 | ◐ LIKELY ACTIVE |
| YWYoung's Welding, Inc. | Chanute | KS | 20–99 | ◐ LIKELY ACTIVE |
| AFAshland Fabricating & Welding CO INC | Ashland | KY | — | ◐ LIKELY ACTIVE |
| BIBestek Industries INC | San Antonio | TX | — | ◐ LIKELY ACTIVE |
| GOG. O. Carlson, INC. | Oil City | PA | — | ◐ LIKELY ACTIVE |
| LSLapeyre Stair, INC. | New Orleans | LA | — | ◐ LIKELY ACTIVE |
| OBOzarks Barge & Dock Service, INC. | Gravois Mills | MO | — | ◐ LIKELY ACTIVE |
| SRSoutheast Rigging, INC | Jacksonville | FL | — | ◐ LIKELY ACTIVE |
| AIAbc-naco INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
 Acadian Contractors INC | Abbeville | LA | — | ◇ UNVERIFIED |
| ASAcme Structural INC | Springfield | MO | — | ◇ UNVERIFIED |
| AIAes Industries INC | Wheeling | WV | — | ◇ UNVERIFIED |
| ASAfco Steel | Greeley | CO | — | ◇ UNVERIFIED |
| ASAfco Steel Company | Little Rock | AR | — | ◇ UNVERIFIED |
| ASAk Steel Rockport Works | Rockport | IN | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum CORP | Vandergrift | PA | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum Latrobe Plant | Latrobe | PA | — | ◇ UNVERIFIED |
| ALAllegheny Ludlum LLC | Brackenridge | PA | — | ◇ UNVERIFIED |
| ASAmerican Sintered Technologies INC | Emporium | PA | — | ◇ UNVERIFIED |
| AVAmg Vanadium LLC | Zanesville | OH | — | ◇ UNVERIFIED |
| ACAm/ns Calvert LLC | Calvert | AL | — | ◇ UNVERIFIED |
| ASApollo Steel CO. | Lincoln | NE | — | ◇ UNVERIFIED |
| ALArcelormittal LLC - Burns Harbor Facility | Burns Harbor | IN | — | ◇ UNVERIFIED |
| APArcelormittal Plate LLC - Coatesville Facility | Coatesville | PA | — | ◇ UNVERIFIED |
| APArcelormittal Plate LLC Conshohocken Facility | Conshohocken | PA | — | ◇ UNVERIFIED |
| ARArcelormittal Riverdale, INC. - Riverdale Facility | Riverdale | IL | — | ◇ UNVERIFIED |
| AWArcelormittal Weirton | Weirton | WV | — | ◇ UNVERIFIED |
| AEArcosa Epi LLC | Mason | MI | — | ◇ UNVERIFIED |
| ASArcosa Shoring Products INC | Union City | MI | — | ◇ UNVERIFIED |
| ATArcosa Tanks, LLC ( Arcosa ) - Arcosa Tanks | West Fargo | ND | — | ◇ UNVERIFIED |
| ASAtec Steel Fabrication & Construction, LLC | Baxter Springs | KS | — | ◇ UNVERIFIED |
| AAAti Allegheny Ludlum Flat Rolled Products Plant | New Bedford | MA | — | ◇ UNVERIFIED |
| APAti Precision Finishing LLC - Rochester Facility | Rochester | PA | — | ◇ UNVERIFIED |
| APAti Precision Finishing LLC - Zelienople | Zelienople | PA | — | ◇ UNVERIFIED |
| AIAvestapolarit INC | New Castle | IN | — | ◇ UNVERIFIED |
| BSBanker Steel CO LLC | Lynchburg | VA | — | ◇ UNVERIFIED |
| BSBanker Steel CO LLC - 30997 | Lynchburg | VA | — | ◇ UNVERIFIED |
| BSBanker Steel - Orlando | Orlando | FL | — | ◇ UNVERIFIED |
| BSBanker Steel - Rock Hill | Rock Hill | SC | — | ◇ UNVERIFIED |
| BSBanner Service CORP | Carol Stream | IL | — | ◇ UNVERIFIED |
| BMBear Metallurgical Mfg | Butler | PA | — | ◇ UNVERIFIED |
| BSBeck Steel | Lubbock | TX | — | ◇ UNVERIFIED |
| BSBell Steel INC. | Chandler | AZ | — | ◇ UNVERIFIED |
| BSBenteler Steel/tube Manufacturing CORP | Shreveport | LA | — | ◇ UNVERIFIED |
| BHBlp Holdings | Houston | TX | — | ◇ UNVERIFIED |
| BCBluescope Coated Products LLC | Jackson | MS | — | ◇ UNVERIFIED |
| BABraeburn Alloy Steel Rolling Mill Fac | Lower Burrell | PA | — | ◇ UNVERIFIED |
| BMBtd Manufacturing INC. | Dawsonville | GA | — | ◇ UNVERIFIED |
| BMBtd Mfg INC | Lakeville | MN | — | ◇ UNVERIFIED |
| CICaid Industries INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| CSCanam Steel CORP | Claremont | NH | — | ◇ UNVERIFIED |
| CSCanatal Steel USA | Roanoke | VA | — | ◇ UNVERIFIED |
| CSCarolina Steel CORP | Winston Salem | NC | — | ◇ UNVERIFIED |
| CSCarolina Steel Corporation | Nashville | NC | — | ◇ UNVERIFIED |
| CSCarolina Steel Group, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
 Carpenter Technology CORP | Tanner | AL | — | ◇ UNVERIFIED |
| Carpenter Technology CORP | Reading | PA | — | ◇ UNVERIFIED |
| CPCass Precision Machining | Brooklyn Center | MN | — | ◇ UNVERIFIED |
| CTCentral Texas Iron Works | Waco | TX | — | ◇ UNVERIFIED |
| CTCentral Texas Iron Works Schertz | Schertz | TX | — | ◇ UNVERIFIED |
| CEChart Energy & Chemicals INC - Plant 1 | New Iberia | LA | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. (1318171623) | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| CSCharter Steel INC | Rising Sun | OH | — | ◇ UNVERIFIED |
| CCChemalloy CO Conshohocken Fac | Conshohocken | PA | — | ◇ UNVERIFIED |
| CSCives Steel Company Midwest Division | Wolcott | IN | — | ◇ UNVERIFIED |
| CSCives Steel Idaho | Idaho Falls | ID | — | ◇ UNVERIFIED |
| CCCleveland Cliffs Steel Corp/ Butler Works | Butler | PA | — | ◇ UNVERIFIED |
| CSCleveland-cliffs Steel CORP - Mansfield Facility | Mansfield | OH | — | ◇ UNVERIFIED |
| CSCleveland-cliffs Steel Corporation | Coshocton | OH | — | ◇ UNVERIFIED |
| CCCmc Coatings | Waxahachie | TX | — | ◇ UNVERIFIED |
| CCCmc Coating Toltec Steel | Kankakee | IL | — | ◇ UNVERIFIED |
| CRCmc Rebar | Nashville | TN | — | ◇ UNVERIFIED |
| CRCmc Rebar Carolinas | Gastonia | NC | — | ◇ UNVERIFIED |
| CRCmc Rebar-fl-jacksonville East | Jacksonville | FL | — | ◇ UNVERIFIED |
| CRCmc Rebar Florida | Fort Myers | FL | — | ◇ UNVERIFIED |
| CRCmc Rebar-fl-tampa | Plant City | FL | — | ◇ UNVERIFIED |
| CRCmc Rebar Ft. Lauderdale | Dania | FL | — | ◇ UNVERIFIED |
| CRCmc Rebar Georgia | Lawrenceville | GA | — | ◇ UNVERIFIED |
| CRCmc Rebar-oh-cincinnati | Hamilton | OH | — | ◇ UNVERIFIED |
| CRCmc Rebar - Oklahoma City | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CRCmc Rebar - St. Louis | O Fallon | MO | — | ◇ UNVERIFIED |
| CRCmc Rebar Va King George | King George | VA | — | ◇ UNVERIFIED |
| CRCmc Rebar Warehouse | Kissimmee | FL | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators | Mesa | AZ | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators (dba Cmc Rebar) | Melissa | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC | Tracy | CA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC | Polo | MO | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC (dba Cmc Capitol City Steel) | Buda | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Capitol Steel | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Paving Solutions | Kankakee | IL | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC (dba Cmc Rebar) | Waxahachie | TX | — | ◇ UNVERIFIED |
