 Danko Arlington, INC. | Baltimore | MD | Primary Metal Manufacturing331521 | — | ● ACTIVE |
 Marlin Steel Wire Products LLC | Baltimore | MD | Primary Metal Manufacturing331222 | — | ● ACTIVE |
 Lacy Foundries LLC | Baltimore | MD | Primary Metal Manufacturing331513 | — | ● ACTIVE |
| ARAmg Resources CORP | Baltimore | MD | Chemical Manufacturing325131 | — | ◐ LIKELY ACTIVE |
| CBClendenin Brothers | Baltimore | MD | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| EAEastalco Aluminum Company | Baltimore | MD | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| EAElf Atochem North America, INC | Baltimore | MD | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| HEHalethorpe Extrusions Incorporated | Baltimore | MD | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| MRMaryland Recycling | Baltimore | MD | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| MCMpa - Cox Creek | Baltimore | MD | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| TTechalloy | Baltimore | MD | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| UIUnited Iron & Metal | Baltimore | MD | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| WSWorthington Steel Company the | Baltimore | MD | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AAAmerican Alloy Foundry INC | Baltimore | MD | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| AMAnsam Metals CORP | Baltimore | MD | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
 Boldmark Steel Industry, LLC | Baltimore | MD | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CICambridge Iron & Metal | Baltimore | MD | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| NANew Arts Bronze Studios INC | Baltimore | MD | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
