 Plymouth Tube Company | Salisbury | 20–99 | ● ACTIVE |
| CICambridge International | Cambridge | 100–499 | ● ACTIVE |
 Danko Arlington, INC. | Baltimore | — | ● ACTIVE |
 Aclara Metals INC. | Bethesda | — | ● ACTIVE |
| Aclara Technologies INC. | Bethesda | — | ● ACTIVE |
 Lacy Foundries LLC | Baltimore | — | ● ACTIVE |
| ARAmg Resources CORP | Baltimore | — | ◐ LIKELY ACTIVE |
 Garrett Container Systems, INC. | Accident | — | ◐ LIKELY ACTIVE |
 Marlin Steel Wire Products LLC | Baltimore | — | ◐ LIKELY ACTIVE |
| CBClendenin Brothers | Baltimore | — | ◇ UNVERIFIED |
| EAEastalco Aluminum Company | Baltimore | — | ◇ UNVERIFIED |
| RSRg Steel Sparrows Point LLC | Sparrows Point | — | ◐ LIKELY ACTIVE |
| TGThe Gill Corporation - Maryland | Edgewood | — | ◐ LIKELY ACTIVE |
| BWBlaine Window Hardware | Hagerstown | — | ◇ UNVERIFIED |
| CCCianbro Corporation Baltimore Facility | Curtis Bay | — | ◇ UNVERIFIED |
| EAEastalco Aluminum CO | Frederick | — | ◇ UNVERIFIED |
| EAElf Atochem North America, INC | Baltimore | — | ◇ UNVERIFIED |
| HEHalethorpe Extrusions Incorporated | Baltimore | — | ◇ UNVERIFIED |
| MRMaryland Recycling | Baltimore | — | ◇ UNVERIFIED |
| MSMaryland Specialty Wire | Cockeysville | — | ◇ UNVERIFIED |
| MCMpa - Cox Creek | Baltimore | — | ◇ UNVERIFIED |
| SSSchultz & Sons Salvage INC | Denton | — | ◇ UNVERIFIED |
| TTechalloy | Baltimore | — | ◇ UNVERIFIED |
| UIUnited Iron & Metal | Baltimore | — | ◇ UNVERIFIED |
| VHVulcan Hart Corporation | Dundalk | — | ◇ UNVERIFIED |
| WSWorthington Steel Company the | Baltimore | — | ◇ UNVERIFIED |
| AIAmtrol Inc Baltimore | Sparrows Point | 1–19 | ◐ LIKELY ACTIVE |
| AAAmerican Alloy Foundry INC | Baltimore | — | ◇ UNVERIFIED |
| AMAnsam Metals CORP | Baltimore | — | ◇ UNVERIFIED |
| BBBlack Briar Investments, LLC | North East | — | ◇ UNVERIFIED |
 Boldmark Steel Industry, LLC | Baltimore | — | ◇ UNVERIFIED |
| CICambridge Iron & Metal | Baltimore | — | ◇ UNVERIFIED |
| DADesign Assistance Construction Systems INC | Sparrows Point | — | ◇ UNVERIFIED |
| JIJ&d Industrial Services INC | Pasadena | — | ◇ UNVERIFIED |
| MMMaryland Metals Processing, INC. | Sparrows Point | — | ◇ UNVERIFIED |
| NANew Arts Bronze Studios INC | Baltimore | — | ◇ UNVERIFIED |
