US Factory Map

Primary metals manufacturers in Michigan

Michigan has 207 primary metals establishments employing 17,934 people (Census, 2023), and EPA's ECHO database lists 322 active primary metals facilities in the state. By employment it is Michigan's number 9 manufacturing industry, and Michigan ranks number 7 among states for it.

NAICS subsector
331
Primary Metal Manufacturing
Establishments
207
Census 2023
Employees
17,934
Census 2023
In EPA records
322
With a page here
12
Revised
November 11, 2026

Primary metals factories with a page

FacilityWhat it makes (NAICS)City
Asama Coldwater Manufacturing, Inc.Iron FoundriesColdwater
Cadillac Casting, IncorporatedIron FoundriesCadillac
Cleveland-Cliffs Steel Corp - Dearborn WorksIron and Steel Mills and Ferroalloy ManufacturingDearborn
Dw-National Standard-Niles, LLCSteel Wire DrawingNiles
Ej USA, Inc.Iron FoundriesEast Jordan
General Motors PowetrainAluminum Foundries (except Die-Casting)Saginaw
Great Lakes Castings LLCIron FoundriesLudington
Grede LLC - Iron MountainIron FoundriesKingsford
Michigan Seamless Tube, LLCIron and Steel Pipe and Tube Manufacturing from Purchased SteelSouth Lyon
North Star Steel CoIron and Steel Mills and Ferroalloy ManufacturingMonroe
Textron Cwc DivisionIron FoundriesMuskegon
US Steel Great Lakes Works - Ecorse FacilityIron and Steel Mills and Ferroalloy ManufacturingEcorse

These are the Michigan primary metals facilities that report to EPA's Toxics Release Inventory. The other 310 in EPA records don't have a page yet.

What these factories make

  • Iron Foundries (NAICS 331511): 7 facilities
  • Iron and Steel Mills and Ferroalloy Manufacturing (NAICS 331110): 4 facilities
  • Rolled Steel Shape Manufacturing (NAICS 331221): 3 facilities
  • Steel Wire Drawing (NAICS 331222): 1 facility
  • Aluminum Foundries (except Die-Casting) (NAICS 331524): 1 facility
  • Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (NAICS 331210): 1 facility

Where they cluster

Cities with the most active primary metals facilities in EPA records: Muskegon (21), Detroit (14), Grand Rapids (13), Warren (8), Coldwater (8).

New primary metals plants in Michigan

Primary metals manufacturing across the US. Everything made in Michigan.