| ALAllegheny Ludlum Corporation | Waterbury | CT | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ASAmerican Stainless & Alloy Products | Darlington | SC | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AMAmeriti Manufacturing Company | Detroit | MI | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AVAmg Vanadium LLC | Zanesville | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ASAnvil Steel | Gardena | CA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| ACArcelormittal Calvert, LLC | Calvert | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AMArcelor Mittal/indiana Harbor Long Carbon | East Chicago | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ALArcelormittal Laplace LLC | Harriman | TN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| BSBayou Steel Mill Plant - Laplace Steel Mill | Laplace | LA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| BTBluewater Thermal Solutions - Chicago 3 | Melrose Park | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| BPBrazos Pipe & Steel Fabricators, INC. | Freeport | TX | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| BSBrickham Stamping | Oshkosh | WI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| BSByer Steel | Cincinnati | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| CSCalifornia Steel Industries | Fontana | CA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
Carpenter Technology-tube Div | Union | NJ | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CSCF&I Steel LP dba Rocky Mountain Steel Mills | Pueblo | CO | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSCfs Steel CO. | Bronx | NY | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleveland-Cliffs Steel Research & Innovation Center | Middletown | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleveland-Cliffs Steelton LLC | Steelton | PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| CSClingan Steel INC. | Elk Grove Village | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| CHCustom Hoists | Ashland | OH | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| DIDavison Iron Works INC | Sacramento | CA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| EIEps Industries, INC | Ferrysburg | MI | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| EMExcel Machine Technology, INC. | Elk Grove Village | IL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| EVExploratory Ventures, LLC | Osceola | AR | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| FWFab Weld Steel, INC. | Randolph | AL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| FFFairmount Foundry Inc. | Hamburg | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| GAGerdau Ameristeel US INC | Saint Paul | MN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| GCGranite City Works | Granite City | IL | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| GLGreat Lakes Works | Ecorse | MI | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| ICIndustrial Container Services | Roseville | CA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| JSJersey Shore Steel Co/avis Plt | Avis | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
Jersey Shore Steel Fabrication | Montoursville | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| KSKenwal Steel Corporation | Burns Harbor | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| LIL&n Industries | Rushville | IL | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| MMMesabi Metallics CO LLC | Nashwauk | MN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| MNMesabi Nugget Delaware LLC | Aurora | MN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| MIMetaltech Inc/sandy Twp Plt | Dubois | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| MWMinneapolis Washer and Stamping, INC. | Minneapolis | MN | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| MAM.s. Action Machining CORP | Mchenry | IL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| NSNucor Steel Arkansas | Blytheville | AR | Nonmetallic Mineral Product Manufacturing327910 | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Gallatin LLC | Ghent | KY | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| NSNucor Steel Sedalia, LLC 2023 | Sedalia | MO | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| OUOpta USA Inc/affival INC | New Kensington | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| OSOptimus Steel LLC | Vidor | TX | Petroleum and Coal Products Manufacturing324199 | 100-499 | ◐ LIKELY ACTIVE |
| PWPro Weld INC | White City | OR | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| RIReading Industries INC | Reading | PA | Paper Manufacturing322211 | 20-99 | ◐ LIKELY ACTIVE |
| RMRecycle Metals Corp/conshohocken | Conshohocken | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| SISearing Industries | Rancho Cucamonga | CA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| SSSharon Steel CORP (fairmont Coke Works) | Fairmont | WV | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |