| DSDw-national Standard-niles, LLC | Niles | MI | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| ACAcra Cast INC | Bay City | MI | Primary Metal Manufacturing331512 | 20-99 | ◇ UNVERIFIED |
| FTFinishing Touch INC | Litchfield | MI | Primary Metal Manufacturing331210 | 1-19 | ◇ UNVERIFIED |
| MTMelling Tool Company | Battle Creek | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ACAlgonac Cast Products INC | Algonac | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| AMAlphi Manufacturing INC | Jonesville | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BSBarber Steel Foundry Corporation | Rothbury | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CAConcept Alloys LLC a Close Corporation | Whitmore Lake | MI | Primary Metal Manufacturing331491 | 1-19 | ◇ UNVERIFIED |
| DADedicated Acquisition | Warren | MI | Primary Metal Manufacturing331491 | 1-19 | ◇ UNVERIFIED |
| ETEgle-rrd-austin Tube Prod | Baldwin | MI | Primary Metal Manufacturing331210 | 1-19 | ◇ UNVERIFIED |
| KWKaines West Michigan | Ludington | MI | Primary Metal Manufacturing331222 | 100-499 | ◇ UNVERIFIED |
| PEPark Electric-armada | Armada | MI | Primary Metal Manufacturing331315 | 1-19 | ◇ UNVERIFIED |
| VFVolcor Finishing INC | Ionia | MI | Primary Metal Manufacturing331511 | 1-19 | ◇ UNVERIFIED |
| YSYale Steel INC | Yale | MI | Primary Metal Manufacturing331221 | 1-19 | ◇ UNVERIFIED |
| AFAdrian Fabricators INC. | Adrian | MI | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| ABAlfredson Brothers Construction Company | Menominee | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
 Allied Metals CORP | Troy | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| AMAlreco Metals | Benton Harbor | MI | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| AIAncast INC. | Sodus | MI | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| ACAti Casting Service | Alpena | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BMBenton Metal Recycling | Benton Harbor | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| BFBrockie Fabricating INC | Jackson | MI | Primary Metal Manufacturing331111 | 1-19 | ◇ UNVERIFIED |
| BMBurgess-norton Mfg CO / Std Auto Parts CO Div | Muskegon | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CGCitation Grand Rapids | Grand Rapids | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| CAContinental Aluminum | New Hudson | MI | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| DSDelray Steel Casting INC | Melvindale | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DCDetroit Coke CORP | Detroit | MI | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| DSDetroit Steel CO Trenton | Trenton | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DEDouble Eagle Steel Coating Company | Dearborn | MI | Primary Metal Manufacturing331112 | — | ◇ UNVERIFIED |
| EAEagle Aluminum Cast Products INC | Muskegon | MI | Primary Metal Manufacturing331314 | 1-19 | ◇ UNVERIFIED |
| FEFritz Enterprises INC | Flint | MI | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| GPGm Power Train Saginaw Malleable Iron | Saginaw | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GLGm-smco Landfill | Saginaw | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| HCHayes-albion Corporation | Albion | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HIHd Industries | Detroit | MI | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| HMHofley Mfg CO | Roseville | MI | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| HCHowmet Corporation, Hrc and Plants 5 & 10 | Whitehall | MI | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| HVHuron Valley Steel CORP | Belleville | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| HAHydro Aluminum Adrian INC | Adrian | MI | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| HAHydro Aluminum North America Kalamazoo Operation | Kalamazoo | MI | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| IBIcg Berrien INC | Bridgman | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| IZInteramerican Zinc INC | Coldwater | MI | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ICInvecast Corporation | Warren | MI | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| JSJames Steel and Tube | Madison Heights | MI | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| JLJ L French | Grandville | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| KSKarl Schmidt Unisia INC | South Haven | MI | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| KNKeweenaw National Historical Park Advisory Commission | Hancock | MI | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| MCMag-tec Casting CORP | Jackson | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| MTMaverick Tube Corporation | Ferndale | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MCMax Casting Co-benton Harbor | Benton Harbor | MI | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
