| AMAmeriti Manufacturing Company | Detroit | MI | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AAArco Alloys CORP | Detroit | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| DCDetroit Coke CORP | Detroit | MI | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| HIHd Industries | Detroit | MI | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| SISamuel-whittar INC | Detroit | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ECEdw C Levy Co dba Edw C Levy Co (Detroit) | Detroit | MI | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| APABRS Properties | Detroit | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| ALAmerican Lightweight Materials Manufacturing Innovations Institute Dba Lightweig | Detroit | MI | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| DTDetroit Tube Products LLC | Detroit | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DWDetroit Welded Tube | Detroit | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| EEEutectic Engineering INC | Detroit | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| FPFederal Pipe & Supply CO | Detroit | MI | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| FIFort Iron & Metal Company | Detroit | MI | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| MTMetal Tech Products, INC | Detroit | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| OSOlympic Steel INC | Detroit | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| OROttawa River Steel | Detroit | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| SFSherwood Friction Materials | Detroit | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| USUS Steel | Detroit | MI | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
