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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

Biggest counties

Wayne75Muskegon54Oakland50Macomb46Berrien34Kent30Calhoun16Ottawa14

Biggest cities

Plants in Michigan29 FACILITIES

Listing 29 of 46: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityEmployeesStatus
A-1 Roll COMount Clemens1–19 ACTIVE
Innovative Works INC.Chesterfield20–99 ACTIVE
Sterling Metal Works LLCSterling Heights— ACTIVE
Troy Tube & Manufacturing COChesterfield100–499 ACTIVE
Wolverine Bronze CORoseville20–99 ACTIVE
Warner Bros, Foundry CO.Roseville1–19 ACTIVE
International Casting CORPNew Baltimore1–19 LIKELY ACTIVE
Mnp CORPUtica100–499 LIKELY ACTIVE
Tri-way ManufacturingRoseville1–19 LIKELY ACTIVE
Sequoia Tool INCClinton Township20–99 LIKELY ACTIVE
Curbs & Damper Products Inc.Roseville1–19 LIKELY ACTIVE
D & N Bending CORP.Romeo100–499 LIKELY ACTIVE
Gf Proto-type Plaster INCFraser1–19 LIKELY ACTIVE
Madison Electric CompanyFraser— LIKELY ACTIVE
Midwest Tube Fabricators INCSterling Heights1–19 LIKELY ACTIVE
D&n Bending CORP.Romeo100–499 LIKELY ACTIVE
Sharrow Marine LLCShelby Township— LIKELY ACTIVE
Dedicated AcquisitionWarren1–19 UNVERIFIED
Park Electric-armadaArmada1–19 UNVERIFIED
Shoreline Steel-new HavenNew Haven— LIKELY ACTIVE
Hofley Mfg CORoseville— UNVERIFIED
Invecast CorporationWarren— UNVERIFIED
Threaded Products CORichmond— UNVERIFIED
Transform-shelbyShelby Township— UNVERIFIED
Wolverine Die Cast-hoover RdWarren— UNVERIFIED
Bar Processing WarrenWarren20–99 LIKELY ACTIVE
Niagara LaSalle CorporationWarren20–99 LIKELY ACTIVE
Main Stainless Steel INCSterling Heights1–19 UNVERIFIED
Threaded Products CORichmond1–19 UNVERIFIED

Search all 535 facilities

All primary metal manufacturing nationwide · All manufacturing in Michigan