| MWMinneapolis Washer and Stamping, INC. | Minneapolis | MN | 1–19 | ◐ LIKELY ACTIVE |
| MNM - N Structures INC | Winsted | MN | 20–99 | ◐ LIKELY ACTIVE |
| MAM.s. Action Machining CORP | Mchenry | IL | 20–99 | ◐ LIKELY ACTIVE |
| NPNlmk Pennsylvania Lcc | Farrell | PA | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Arkansas | Blytheville | AR | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Brandenburg | Brandenburg | KY | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Florida, INC. | Frostproof | FL | 100–499 | ◐ LIKELY ACTIVE |
| NSNucor Steel Gallatin LLC | Ghent | KY | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Kankakee INC | Bourbonnais | IL | 100–499 | ◐ LIKELY ACTIVE |
| NSNucor Steel - Lexington | Lexington | NC | 100–499 | ◐ LIKELY ACTIVE |
| NSNucor Steel Louisiana LLC | Convent | LA | 100–499 | ◐ LIKELY ACTIVE |
| NSNucor Steel Sedalia, LLC 2023 | Sedalia | MO | 100–499 | ◐ LIKELY ACTIVE |
| NSNucor Steel West Virginia LLC | Apple Grove | WV | 100–499 | ◐ LIKELY ACTIVE |
| OMO'Neal Manufacturing Services Louisville | Louisville | KY | 20–99 | ◐ LIKELY ACTIVE |
| OLOnesubsea LLC | Mobile | AL | 100–499 | ◐ LIKELY ACTIVE |
| OSOptimus Steel LLC | Vidor | TX | 100–499 | ◐ LIKELY ACTIVE |
| OCOxbow Calcining LLC | Kremlin | OK | 20–99 | ◐ LIKELY ACTIVE |
| PMPerfection Machining LLC | Morgan Hill | CA | — | ◐ LIKELY ACTIVE |
| PWPro Weld INC | White City | OR | — | ◐ LIKELY ACTIVE |
| RIReading Industries INC | Reading | PA | 20–99 | ◐ LIKELY ACTIVE |
| SCSeadrift Coke | Port Lavaca | TX | 100–499 | ◐ LIKELY ACTIVE |
| SISearing Industries | Rancho Cucamonga | CA | 100–499 | ◐ LIKELY ACTIVE |
Southeastern Industrial Fabricators LLC Dba Dixie Southern | Duette | FL | 20–99 | ◐ LIKELY ACTIVE |
| SSSouthwest Steel Nevada Shop | Henderson | NV | 20–99 | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Structural and Rail | Columbia City | IN | 500+ | ◐ LIKELY ACTIVE |
| SVSteel Ventures, INC. | Greenup | KY | 20–99 | ◐ LIKELY ACTIVE |
| TTT-b Tube Company Incorporated | Gary | IN | 20–99 | ◐ LIKELY ACTIVE |
| TATenaris Ambridge | Ambridge | PA | 20–99 | ◐ LIKELY ACTIVE |
| TIThorud INC | Bloomington | MN | 20–99 | ◐ LIKELY ACTIVE |
| TFTrinity Fabricators INC | Green Cove Springs | FL | 20–99 | ◐ LIKELY ACTIVE |
| UAUltra Aluminum | Howell | MI | 100–499 | ◐ LIKELY ACTIVE |
| VCV&S Capital Steel | Trenton | NJ | 20–99 | ◐ LIKELY ACTIVE |
| WSW Silver | Vinton | TX | 100–499 | ◐ LIKELY ACTIVE |
| WMWva Manufacturing Company, LLC | Alloy | WV | 100–499 | ◐ LIKELY ACTIVE |
| GOG. O. Carlson, INC. | Oil City | PA | — | ◐ LIKELY ACTIVE |
| SRSoutheast Rigging, INC | Jacksonville | FL | — | ◐ LIKELY ACTIVE |
| ACAbc Coke | Tarrant | AL | — | ◇ UNVERIFIED |
| AIAbc-naco INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| APAir Products and Chemicals, INC. | Wilmington | CA | — | ◇ 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 |
| AEAmerican Electric Power Gavin Plant | Cheshire | OH | — | ◇ UNVERIFIED |
| ASAmerican Sintered Technologies INC | Emporium | PA | — | ◇ UNVERIFIED |
| AVAmg Vanadium LLC | Zanesville | OH | — | ◇ UNVERIFIED |
| ACAm/ns Calvert LLC | Calvert | AL | — | ◇ UNVERIFIED |
| AIAnthracite Industries INC | Sunbury | PA | — | ◇ UNVERIFIED |
| ALArcelormittal LLC - Burns Harbor Facility | Burns Harbor | IN | — | ◇ UNVERIFIED |
| AMArcelormittal Monessen Coke Plant | Monessen | PA | — | ◇ 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 |
| AAAti Allegheny Ludlum Flat Rolled Products Plant | New Bedford | MA | — | ◇ UNVERIFIED |
| AIAvestapolarit INC | New Castle | IN | — | ◇ UNVERIFIED |
| BMBear Metallurgical Mfg | Butler | PA | — | ◇ UNVERIFIED |
| BSBenteler Steel/tube Manufacturing CORP | Shreveport | LA | — | ◇ UNVERIFIED |
| BABraeburn Alloy Steel Rolling Mill Fac | Lower Burrell | PA | — | ◇ UNVERIFIED |
Carpenter Technology CORP | Tanner | AL | — | ◇ UNVERIFIED |
Carpenter Technology CORP | Reading | PA | — | ◇ UNVERIFIED |
| CSCascade Steel Rolling Mills | Mcminnville | OR | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. (1318171623) | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| CSCharter Steel INC | Rising Sun | OH | — | ◇ UNVERIFIED |
| CCChemalloy CO Conshohocken Fac | Conshohocken | PA | — | ◇ UNVERIFIED |
| CLCleveland-cliffs LLC | East Chicago | IN | — | ◇ 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 |
| CSCmc Steel Fabricators | Mesa | AZ | — | ◇ UNVERIFIED |
| CSCmc Steel - New Jersey Facility | Sayreville | NJ | — | ◇ UNVERIFIED |
| CSCmc Steel Us, LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| CCConocophillips Carbon Plant | Rodeo | CA | — | ◇ UNVERIFIED |
| CSCorey Steel CO | Cicero | IL | — | ◇ UNVERIFIED |
| CICrucible Industries LLC | Solvay | NY | — | ◇ UNVERIFIED |
| DODawkins On-site, LLC - Missouri Portable Nucor | Sedalia | MO | — | ◇ UNVERIFIED |
Dubose Strapping Inc.-treatment Plant #1 | Crawfordsville | IN | — | ◇ UNVERIFIED |
| EEEckart Effect Pigments | Louisville | KY | — | ◇ UNVERIFIED |
| ECEes Coke Battery L.l.c. (p0408) | Detroit | MI | — | ◇ UNVERIFIED |
| EGElectralloy Go Carlson - Oil City Facility | Oil City | PA | — | ◇ UNVERIFIED |
| EMElkem Metals | Alloy | WV | — | ◇ UNVERIFIED |
| EREllwood Remelt Steel Proposed Var/esr Facility | New Castle, City of | PA | — | ◇ UNVERIFIED |
| EPEnterprise Products Operating LLC - Baton Rouge Fractionator & Propylene Concent | Port Allen | LA | — | ◇ UNVERIFIED |
| EMEramet Marietta Metallurgical Plant | Marietta | OH | — | ◇ UNVERIFIED |
| EPEsco Phoenix | Phoenix | AZ | — | ◇ UNVERIFIED |
| EHEvraz Heat Treating | Portland | OR | — | ◇ UNVERIFIED |
| FUFerroglobe USA Bridgeport, Llc, Fka-tennessee Alloys Corporation | Bridgeport | AL | — | ◇ UNVERIFIED |
| FIFranklin Ind Co/franklin | Franklin | PA | — | ◇ UNVERIFIED |
| FSFrog Switch & Manufacturing CO | Carlisle | PA | — | ◇ UNVERIFIED |
| GEGateway Energy & Coke CO LLC | Granite City | IL | — | ◇ UNVERIFIED |
| GSGautier Steel Holdings Inc/gautier Steel Johnstown | Johnstown | PA | — | ◇ UNVERIFIED |
| GGerdau | Wilton | IA | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel Plant | Vidor | TX | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel US INC - Sms Mill Services LLC | Jackson | TN | — | ◇ UNVERIFIED |
| GMGerdau Macsteel - Fort Smith Plant | Fort Smith | AR | — | ◇ UNVERIFIED |
| GMGerdau Midlothian Plant | Midlothian | TX | — | ◇ UNVERIFIED |
| GMGlobe Metallurgical | Selma | AL | — | ◇ UNVERIFIED |
| GCGranite City Works of United States Steel CORP | Granite City | IL | — | ◇ UNVERIFIED |
| HIHannibal Industries INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| HMHarsco Minerals Briquetting LLC | East Chicago | IN | — | ◇ UNVERIFIED |