| OSOptimus Steel LLC | Vidor | TX | 100–499 | ◐ LIKELY ACTIVE |
| PTParthenon Tube | La Vergne | TN | 20–99 | ◐ LIKELY ACTIVE |
| PMPerfection Machining LLC | Morgan Hill | CA | — | ◐ LIKELY ACTIVE |
| PMPhillips Manufacturing Omaha | Omaha | NE | 100–499 | ◐ LIKELY ACTIVE |
| PMPhillips Manufacturing Tampa | Tampa | FL | 20–99 | ◐ LIKELY ACTIVE |
| PSPKM Steel Service, Inc. | Salina | KS | 20–99 | ◐ LIKELY ACTIVE |
| PCPlum CORP | Greensburg | PA | — | ◐ LIKELY ACTIVE |
| PPPremium Plate Supply | Chickasaw | AL | 20–99 | ◐ LIKELY ACTIVE |
| PWPro Weld INC | White City | OR | — | ◐ LIKELY ACTIVE |
| RIReading Industries INC | Reading | PA | 20–99 | ◐ LIKELY ACTIVE |
| RSReynolds Services INC | Greenville | PA | 100–499 | ◐ LIKELY ACTIVE |
| SISearing Industries | Rancho Cucamonga | CA | 100–499 | ◐ LIKELY ACTIVE |
| SISIP, Inc. of Delaware | Gadsden | AL | 20–99 | ◐ LIKELY ACTIVE |
| SMSoudan Metals Company INC. | Chicago | IL | 20–99 | ◐ LIKELY ACTIVE |
| SSSouthwest Steel Nevada Shop | Henderson | NV | 20–99 | ◐ LIKELY ACTIVE |
| STSsab Texas | Houston | TX | 1–19 | ◐ LIKELY ACTIVE |
| SMStar Manufacturing INC | Lexington | KY | 100–499 | ◐ LIKELY ACTIVE |
| SDSteel Dynamics, Inc. - Structural and Rail | Columbia City | IN | 500+ | ◐ LIKELY ACTIVE |
| SVSteel Ventures, INC. | Greenup | KY | 20–99 | ◐ LIKELY ACTIVE |
| SASteward Advanced Materials LLC | Chattanooga | TN | 20–99 | ◐ LIKELY ACTIVE |
| SFSuperior Forge and Steel | Pittsburgh | PA | 20–99 | ◐ LIKELY ACTIVE |
| SFSystems Fab & Machine, INC. | El Dorado | AR | 20–99 | ◐ LIKELY ACTIVE |
| TTT-b Tube Company Incorporated | Gary | IN | 20–99 | ◐ LIKELY ACTIVE |
| TDT & D Metal Products | Watseka | IL | 100–499 | ◐ LIKELY ACTIVE |
| TATenaris Ambridge | Ambridge | PA | 20–99 | ◐ LIKELY ACTIVE |
| TIThorud INC | Bloomington | MN | 20–99 | ◐ LIKELY ACTIVE |
| TCTriad Corrugated Metal, INC. | Asheboro | NC | 20–99 | ◐ LIKELY ACTIVE |
| TFTrinity Fabricators INC | Green Cove Springs | FL | 20–99 | ◐ LIKELY ACTIVE |
| TSTygart Steel | Mckeesport | PA | 20–99 | ◐ LIKELY ACTIVE |
| UAUltra Aluminum | Howell | MI | 100–499 | ◐ LIKELY ACTIVE |
Unarco Material Handling LLC Lewisville TX | Lewisville | TX | 100–499 | ◐ LIKELY ACTIVE |
| UCUniform Components Corp. | Houston | TX | 100–499 | ◐ LIKELY ACTIVE |
| UGUS Gypsum Corporation Auburn | Auburn | WA | 20–99 | ◐ LIKELY ACTIVE |
| VMVoeller Mixers | Port Washington | WI | 20–99 | ◐ LIKELY ACTIVE |
| VCV&S Capital Steel | Trenton | NJ | 20–99 | ◐ LIKELY ACTIVE |
| WCWall Co., Incorporated | Madison Heights | MI | — | ◐ LIKELY ACTIVE |
| WSWmc Steel | Conroe | TX | 20–99 | ◐ LIKELY ACTIVE |
| WCWorthington-Samuel Coil Processing Cleveland West | Cleveland | OH | 20–99 | ◐ LIKELY ACTIVE |
| WCWorthington-Samuel Coil Processing Twinsburg | Twinsburg | OH | 20–99 | ◐ LIKELY ACTIVE |
| WSWorthington Steel Taylor | Taylor | MI | 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 |
| AIAbc-naco INC | Chicago Heights | IL | — | ◇ 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 |
| 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 |
| ASArkansas Steel Processing | Osceola | AR | — | ◇ UNVERIFIED |
| AAAti Allegheny Ludlum Flat Rolled Products Plant | New Bedford | MA | — | ◇ UNVERIFIED |
| AIAvestapolarit INC | New Castle | IN | — | ◇ UNVERIFIED |
| BSBanker Steel - Orlando | Orlando | FL | — | ◇ UNVERIFIED |
| BMBear Metallurgical Mfg | Butler | PA | — | ◇ UNVERIFIED |
| BCBekaert Corporation (0285010331) | Orrville | OH | — | ◇ UNVERIFIED |
| BSBenteler Steel/tube Manufacturing CORP | Shreveport | LA | — | ◇ UNVERIFIED |
| BPBluescope Prefab Bldg Mfg Annville | Annville | PA | — | ◇ UNVERIFIED |
| BABraeburn Alloy Steel Rolling Mill Fac | Lower Burrell | PA | — | ◇ UNVERIFIED |
Carpenter Technology CORP | Tanner | AL | — | ◇ UNVERIFIED |
Carpenter Technology CORP | Reading | PA | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. (1318171623) | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| CSCharter Steel INC | Rising Sun | OH | — | ◇ UNVERIFIED |
| CCChemalloy CO Conshohocken Fac | Conshohocken | PA | — | ◇ 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 |
| CRCmc Rebar Savannah | Pooler | GA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators | Mesa | AZ | — | ◇ UNVERIFIED |
| CSCmc Steel - New Jersey Facility | Sayreville | NJ | — | ◇ UNVERIFIED |
| CSCmc Steel Us, LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| CSCorey Steel CO | Cicero | IL | — | ◇ UNVERIFIED |
| CICrucible Industries LLC | Solvay | NY | — | ◇ UNVERIFIED |
| CGCtb Grain Systems-ctb Grain Systems | Kansas City | MO | — | ◇ UNVERIFIED |
| DODawkins On-site, LLC - Missouri Portable Nucor | Sedalia | MO | — | ◇ UNVERIFIED |
| DIDietrich Ind | Hicksville | OH | — | ◇ UNVERIFIED |
Dubose Strapping Inc.-treatment Plant #1 | Crawfordsville | IN | — | ◇ UNVERIFIED |
| DIDynamet Incorporated | Washington | PA | — | ◇ UNVERIFIED |
| EEEckart Effect Pigments | Louisville | KY | — | ◇ UNVERIFIED |
| EGElectralloy Go Carlson - Oil City Facility | Oil City | PA | — | ◇ UNVERIFIED |
| ESElgiloy Specialty Metals | Hampshire | IL | — | ◇ UNVERIFIED |
| ESElgiloy Specialty Metals | Elgin | IL | — | ◇ UNVERIFIED |
| EMElkem Metals | Alloy | WV | — | ◇ UNVERIFIED |
| EREllwood Remelt Steel Proposed Var/esr Facility | New Castle, City of | PA | — | ◇ UNVERIFIED |
| EMEramet Marietta Metallurgical Plant | Marietta | OH | — | ◇ UNVERIFIED |
| EPEsco Phoenix | Phoenix | AZ | — | ◇ UNVERIFIED |
| FUFerroglobe USA Bridgeport, Llc, Fka-tennessee Alloys Corporation | Bridgeport | AL | — | ◇ UNVERIFIED |
| FSFrog Switch & Manufacturing CO | Carlisle | PA | — | ◇ UNVERIFIED |
| FCFulton County Processing LTD a Heidtman Steel CO | Delta | OH | — | ◇ UNVERIFIED |
| GEGateway Energy & Coke CO LLC | Granite City | IL | — | ◇ UNVERIFIED |
| GSGautier Steel Holdings Inc/gautier Steel Johnstown | Johnstown | PA | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel US INC - Sms Mill Services LLC | Jackson | TN | — | ◇ UNVERIFIED |
| GMGlobe Metallurgical | Selma | AL | — | ◇ UNVERIFIED |