FactoryRegistry

Manufacturing in St. Clair County, Michigan

As of JUL 2026, FactoryRegistry lists 161 manufacturing facilities in St. Clair County, Michigan, sourced from EPA, OSHA and Census records.

FACILITIES
161
CITIES
10
TOP INDUSTRY
Fabricated Metal Product Manufacturing
40 facilities

Cities

Port Huron (47)Marysville (24)Port Huron (12)Marine City (9)Saint Clair (9)Algonac (5)Marysville (5)St. Clair (4)Fair Haven (4)Ira (4)

Top industries

Fabricated Metal Product Manufacturing (40)Plastics and Rubber Products Manufacturing (29)Machinery Manufacturing (28)Transportation Equipment Manufacturing (25)Chemical Manufacturing (8)Petroleum and Coal Products Manufacturing (7)

Facilities

Ald Thermal Treatment, INC.
Port Huron, MI
ACTIVE332811EMP 20-99
Mueller Impacts Co, INC
Marysville, MI
ACTIVE331316EMP 20-99
L. R. Oliver and Co, Incorporated
Cottrellville, MI
ACTIVE327910EMP 20-99
Mpp CORP.
Kimball, MI
ACTIVE333511EMP 20-99
Selective Industries, INC.
Marine City, MI
ACTIVE332119EMP 20-99
Becker Metal Works INC
Saint Clair, MI
LIKELY ACTIVE331512
Btm CO LLC
Marysville, MI
LIKELY ACTIVE332999
Centracore, LLC
Saint Clair, MI
LIKELY ACTIVE332710
Marysville Ethanol, LLC
Marysville, MI
LIKELY ACTIVE325193EMP 20-99
Mueller Brass CO.
Port Huron, MI
LIKELY ACTIVE331420EMP 100-499
Riverside Spline and Gear INC
Marine City, MI
LIKELY ACTIVE333513EMP 20-99
Witco INC
Greenwood, MI
LIKELY ACTIVE332710
Advanced Automotive Group, L.l.c.
Algonac, MI
LIKELY ACTIVE332710
Advanced Turning Solutions, LLC
Port Huron, MI
LIKELY ACTIVE332721
Aes
Capac, MI
LIKELY ACTIVE326199EMP 20-99
Aludyne
Port Huron, MI
LIKELY ACTIVE336330EMP 1-19
Aludyne 2347
Port Huron, MI
LIKELY ACTIVE336330EMP 20-99
Aludyne 3150
Port Huron, MI
LIKELY ACTIVE336330EMP 20-99
Attica Manufacturing INC
Port Huron, MI
LIKELY ACTIVE332710
Auria St Clair LLC
St. Clair, MI
LIKELY ACTIVE336360EMP 100-499
Auria St. Clair LLC
Saint Clair, MI
LIKELY ACTIVE336360EMP 100-499
Axiom Enhanced Solutions, LLC
Capac, MI
LIKELY ACTIVE326199
Benjamin J. Barch, INC
Burtchville, MI
LIKELY ACTIVE332710
Biopro, INC.
Port Huron, MI
LIKELY ACTIVE339113
Blitzkrieg LLC
Clay, MI
LIKELY ACTIVE332994
Cargill Salt- St. Clair
St. Clair, MI
LIKELY ACTIVE311942EMP 100-499
Center-line Gage INC
Brockway, MI
LIKELY ACTIVE333514
Centracore, LLC.
St. Clair, MI
LIKELY ACTIVE332710EMP 20-99
CIPA USA Inc.
Port Huron, MI
LIKELY ACTIVE336390EMP 20-99
Cold Air Inductions INC.
Riley, MI
LIKELY ACTIVE336390
Conformance Coatings and Prototype, INC
Marysville, MI
LIKELY ACTIVE332812
E.d.i. Finance, INC.
Ira, MI
LIKELY ACTIVE333921
Engineered Plastic Components Inc.
St Clair, MI
LIKELY ACTIVE333248EMP 100-499
Graphtek, INC
Port Huron, MI
LIKELY ACTIVE324191
Greene Group Industries
Port Huron, MI
LIKELY ACTIVE332117EMP 100-499
Huron Industries INC
Port Huron, MI
LIKELY ACTIVE324191
Industrial Tapes Marysville
Marysville, MI
LIKELY ACTIVE322220EMP 100-499
Innovated Machining Solutions LLC
Port Huron, MI
LIKELY ACTIVE332710
International Automotive Components (IAC)
Port Huron, MI
LIKELY ACTIVE336360EMP 100-499
KKSP Precision Machining Michigan
East China, MI
LIKELY ACTIVE332721EMP 20-99
Magna Electric Vehicle Structures
St. Clair, MI
LIKELY ACTIVE336320EMP 100-499
Mapal INC
Port Huron, MI
LIKELY ACTIVE333515
MAPAL Inc PH
Port Huron, MI
LIKELY ACTIVE333515EMP 100-499
Marysville
Marysville, MI
LIKELY ACTIVE322220EMP 100-499
Michigan Manufactured Products, INC
Port Huron, MI
LIKELY ACTIVE332999
Midwest Fiberglas Fabricators, Incorporated
Marine City, MI
LIKELY ACTIVE339991
Mill Creek Metal Works, INC.
Yale, MI
LIKELY ACTIVE332323
Norma Michigan St Clair
St Clair, MI
LIKELY ACTIVE326199EMP 20-99
O.e.m. Company, INC.
Port Huron, MI
LIKELY ACTIVE333992
Paumac Tubing LLC - Plant 1
Marysville, MI
LIKELY ACTIVE332996EMP 20-99