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

Plants in Michigan25 FACILITIES

Listing 25 of 34: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
SSShawnee Specialties INC.	Eau Claire	1–19	● ACTIVE
HDHoffmann Die Cast LLC	St. Joseph	20–99	◐ LIKELY ACTIVE
SCSupreme Casting	Stevensville	20–99	◐ LIKELY ACTIVE
GLGreat Lakes X-cel	Niles	20–99	◐ LIKELY ACTIVE
NPNew Products CORP	Benton Harbor	20–99	◐ LIKELY ACTIVE
DSDw-national Standard-niles, LLC	Niles	—	◇ UNVERIFIED
ALAlutech LLC	Benton Harbor	—	◐ LIKELY ACTIVE
VSVast Sumitec INC	Benton Harbor	—	◐ LIKELY ACTIVE
ICIntermet CORP	Stevensville	—	◐ LIKELY ACTIVE
SSSandvik Steel CO	Benton Harbor	—	◐ LIKELY ACTIVE
TDTru Diecasts CO.	New Troy	1–19	◐ LIKELY ACTIVE
AEAacoa Extrusions INC.	Niles	—	◐ LIKELY ACTIVE
MIModar Inc-2200 Empire LLC	Benton Harbor	—	◐ LIKELY ACTIVE
NSNorth Shore Manufacturing	Coloma	1–19	◐ LIKELY ACTIVE
AMAlreco Metals	Benton Harbor	—	◇ UNVERIFIED
AIAncast INC.	Sodus	—	◇ UNVERIFIED
BMBenton Metal Recycling	Benton Harbor	—	◇ UNVERIFIED
IBIcg Berrien INC	Bridgman	—	◇ UNVERIFIED
MCMax Casting Co-benton Harbor	Benton Harbor	—	◇ UNVERIFIED
NSNat Standard-city Complex	Niles	—	◇ UNVERIFIED
44388_9481	St. Joseph	20–99	◐ LIKELY ACTIVE
Artiflex Manufacturing Eau Claire	Eau Claire	1–19	◐ LIKELY ACTIVE
HEHofmann Eau Claire Plant	Eau Claire	20–99	◐ LIKELY ACTIVE
SSawyer	Sawyer	20–99	◐ LIKELY ACTIVE
LDLakeshore Die Cast	Baroda	20–99	◇ UNVERIFIED

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