Primary Metal Manufacturing in Michigan
NAICS 331 · MI
This register lists 535 facilities in Michigan. The Bureau of Labor Statistics counted 384 establishments in the Primary Metal Manufacturing industry in Michigan in 2025. Howmet Aerospace Whitehall Operations - Whitehall Castings Plant 1 and 3, located in Whitehall, employed 1,240 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Michigan372 FACILITIES
Listing 372 of 535: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Dw-national Standard-niles, LLC | Niles | — | UNVERIFIED |
| Alcotec Wire CORP | Traverse City | 20–99 | LIKELY ACTIVE |
| Alutech LLC | Benton Harbor | — | LIKELY ACTIVE |
| Ameriti Manufacturing Company | Detroit | 20–99 | LIKELY ACTIVE |
| Auto Cast Inc | Grandville | 20–99 | LIKELY ACTIVE |
| Blue Diamond Steel Casting,inc. | Pigeon | 100–499 | LIKELY ACTIVE |
| Brazeway, LLC Adrian | Adrian | 20–99 | LIKELY ACTIVE |
| Clark Engineering Company | Owosso | 20–99 | LIKELY ACTIVE |
| Corsair Engineering INC | Flint | 20–99 | LIKELY ACTIVE |
| Curbs & Damper Products Inc. | Roseville | 1–19 | LIKELY ACTIVE |
| D & N Bending CORP. | Romeo | 100–499 | LIKELY ACTIVE |
| Gerdau Macsteel, INC. | Jackson | — | LIKELY ACTIVE |
| Gf Proto-type Plaster INC | Fraser | 1–19 | LIKELY ACTIVE |
| Grand Blanc Processing | Holly | — | LIKELY ACTIVE |
| Grede LLC - Iron Mountain | Kingsford | — | LIKELY ACTIVE |
| Hercules Drawn Steel CORP | Livonia | 100–499 | LIKELY ACTIVE |
| Howmet Corporation, Plant 4 | Whitehall | — | LIKELY ACTIVE |
| Howmet Corporation, Plants 1 & 3 | Whitehall | — | LIKELY ACTIVE |
| Imco Recycling of Michigan, LLC | Coldwater | — | LIKELY ACTIVE |
| Linn Products INC | Charlotte | 100–499 | LIKELY ACTIVE |
| Madison Electric Company | Fraser | — | LIKELY ACTIVE |
| Magnesium Prod of AM | Eaton Rapids | 100–499 | LIKELY ACTIVE |
| Midwest Tube Fabricators INC | Sterling Heights | 1–19 | LIKELY ACTIVE |
| North Star Steel CO | Monroe | — | LIKELY ACTIVE |
| Oerlikon Metco - Plymouth | Plymouth | 20–99 | LIKELY ACTIVE |
| Phillips & Johnston INC Dba River Rock Fabrication | Grand Rapids | — | LIKELY ACTIVE |
| Textron Cwc Division | Muskegon | — | LIKELY ACTIVE |
| Vast Sumitec INC | Benton Harbor | — | LIKELY ACTIVE |
| Wall Colmonoy - World Headquarters | Madison Heights | 20–99 | LIKELY ACTIVE |
| Whitehall Products LTD | Montague | 20–99 | LIKELY ACTIVE |
| White Pine Copper Refinery INC | White Pine | 1–19 | LIKELY ACTIVE |
| Advantage Sintered Metals INC | Battle Creek | 100–499 | LIKELY ACTIVE |
| Autocast INC | Grandville | — | LIKELY ACTIVE |
| Bekaert Steel | Muskegon | — | LIKELY ACTIVE |
| Bohn Hydro Aluminum | Holland | — | LIKELY ACTIVE |
| Bunting Bearings CORP | Portage | — | LIKELY ACTIVE |
| Cascade Die Casting Mid-state | Grand Rapids | — | LIKELY ACTIVE |
| Casting Technologies Company-michigan Casting Ctr | Fruitport | — | LIKELY ACTIVE |
| Contech U.s. LLC | Dowagiac | — | LIKELY ACTIVE |
| Cosma Casting Mich-battle Ck | Battle Creek | — | LIKELY ACTIVE |
| East Jordan Foundry LLC | Elmira | — | LIKELY ACTIVE |
| Franklin Iron & Metal | Battle Creek | 20–99 | LIKELY ACTIVE |
| Fritz Products, INC | River Rouge | — | LIKELY ACTIVE |
| General Motors Powetrain | Saginaw | — | LIKELY ACTIVE |
| Great Lakes Die Cast | Muskegon | — | LIKELY ACTIVE |
| Howmet Castings Plant 10 | Whitehall | — | LIKELY ACTIVE |
| Intermet CORP | Stevensville | — | LIKELY ACTIVE |
| Kreher Wire Processing | Romulus | — | LIKELY ACTIVE |
| Linamar Corporation | Alma | — | LIKELY ACTIVE |
| Metal Technologies, Inc., Ravenna Ductile Iron | Ravenna | — | LIKELY ACTIVE |
All primary metal manufacturing nationwide · All manufacturing in Michigan