| GSGerdau Special Steel North America | Jackson | MI | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| GSGkn Sinter Metals | Gallipolis | OH | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| GAGordon Aluminum Industries | Schofield | WI | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| GTGreenville Tube Company | Clarksville | AR | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| HHHammer Haag Steel INC | Clearwater | FL | Primary Metal Manufacturing331210 | 100-499 | ▲ REPORTED CLOSED |
| HCHoeganaes CORP | Gallatin | TN | Chemical Manufacturing325120 | 100-499 | ◐ LIKELY ACTIVE |
| HCHussey Copper LTD | Eminence | KY | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| IDImperial Die Casting | Liberty | SC | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| IDInland Die Casting INC | Wheeling | IL | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| IPIntat Precision INC | Rushville | IN | Nonmetallic Mineral Product Manufacturing327213 | 100-499 | ◐ LIKELY ACTIVE |
| IEInternational Extrusion CORP Texas | Waxahachie | TX | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| JAJordan Aluminum Company, LLC | Memphis | TN | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| KAKaiser Aluminum | Heath | OH | Primary Metal Manufacturing331312 | 100-499 | ◐ LIKELY ACTIVE |
Kaiser Aluminum Fabricated Products LLC | Kalamazoo | MI | Primary Metal Manufacturing331312 | 100-499 | ◐ LIKELY ACTIVE |
| KVKennedy Valve Div Mc Wane INC | Elmira | NY | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| KSKeokuk Steel Castings a Matrix Metals CO LLC | Keokuk | IA | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| KCKsm Castings Usa, INC. | Shelby | NC | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| LPLinn Products INC | Charlotte | MI | Primary Metal Manufacturing331312 | 100-499 | ◐ LIKELY ACTIVE |
| LMLucas Milhaupt INC | Warwick | RI | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| MBMahle Behr Mt Sterling INC | Mount Sterling | OH | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| MFMahoney Foundries | Kendallville | IN | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| MUMarmon Utility LLC | Milford | NH | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| MSMatalco Shelbyville LLC | Shelbyville | KY | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
Matthews International Corporation | Searcy | AR | Primary Metal Manufacturing331522 | 100-499 | ◐ LIKELY ACTIVE |
| MTMaverick Tube | Conroe | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| MIMetaltek Intl - Wisconsin Investcast | Watertown | WI | Primary Metal Manufacturing331510 | 100-499 | ◐ LIKELY ACTIVE |
| MIMetco Ind | Saint Marys | PA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| MAMid American Steel and Wire CO - Mill | Madill | OK | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| MPMills Products, INC. | Athens | TN | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| MCMnp CORP | Utica | MI | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| MPMontana Precision Products LLC | Butte | MT | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| MIMorton Industries LLC | Morton | IL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| NUNemak USA INC | Glasgow | KY | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| NANorth American Hydraulic Excavation Facility | Victoria | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| NVNorth Vernon Industry CORP | North Vernon | IN | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| NPNorthwest Pipe CO | Adelanto | CA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| NPNtk Precision Axle CORP | Frankfort | IN | Primary Metal Manufacturing331221 | 100-499 | ◐ LIKELY ACTIVE |
| NSNucor Steel Kankakee INC | Bourbonnais | IL | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| NSNucor Steel Kingman LLC | Kingman | AZ | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| NTNucor Tubular Products INC | Decatur | AL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| OAOhio Aluminum Industries INC. | Cleveland | OH | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| PSPcc Schlosser | Redmond | OR | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| PSPcc Structurals | Carson City | NV | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| PTPhoenix Tube CO | Bethlehem | PA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| PCPrysmian Cables & Systems USA | Paragould | AR | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| PGPsg Grand Rapids (previously Blackmer, a Dover Co) | Grand Rapids | MI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| RMRea Magnet Wire Company INC | Lafayette | IN | Primary Metal Manufacturing331318 | 100-499 | ◐ LIKELY ACTIVE |
| RCRepublic Conduit | Louisville | KY | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| RCRollex CORP | Elk Grove Village | IL | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| SLSignicast LLC - Brown Deer | Milwaukee | WI | Primary Metal Manufacturing331510 | 100-499 | ◐ LIKELY ACTIVE |