FactoryRegistry

Manufacturing in St. Charles County, Missouri

As of JUL 2026, FactoryRegistry lists 228 manufacturing facilities in St. Charles County, Missouri, sourced from EPA, OSHA and Census records.

FACILITIES
228
CITIES
10
TOP INDUSTRY
Fabricated Metal Product Manufacturing
41 facilities

Cities

Saint Charles (46)O Fallon (45)Saint Peters (24)Wentzville (24)O'fallon (12)St. Charles (11)O'Fallon (10)St Charles (9)St. Peters (8)St. Charles (6)

Top industries

Fabricated Metal Product Manufacturing (41)Machinery Manufacturing (31)Transportation Equipment Manufacturing (29)Nonmetallic Mineral Product Manufacturing (21)Chemical Manufacturing (14)Computer and Electronic Product Manufacturing (13)

Facilities

Patriot Machine, INC.
Saint Charles, MO
ACTIVE336413
Craftsmen Industries, INC.
Saint Charles, MO
ACTIVE336212EMP 100-499
Western Ready-mix, INC
Wentzville, MO
ACTIVE327320EMP 20-99
Austin Machine CO
O Fallon, MO
LIKELY ACTIVE332312
General Motors LLC Wentzville
Wentzville, MO
LIKELY ACTIVE336111EMP 500+
K and P Precast INC
O'fallon, MO
LIKELY ACTIVE327331EMP 20-99
Missouri Metals
Wentzville, MO
LIKELY ACTIVE336413EMP 20-99
Modineer Plant 7
Saint Peters, MO
LIKELY ACTIVE332722EMP 100-499
National Cart CO INC
Saint Charles, MO
LIKELY ACTIVE332999
Patterson Mold and Tool, LLC
Saint Charles, MO
LIKELY ACTIVE333511
Permian Plastics, LLC
O Fallon, MO
LIKELY ACTIVE326199
Schreiter Ready Mix and Materials INC
O'fallon, MO
LIKELY ACTIVE327320EMP 20-99
Seyer Industries, INC.
Saint Peters, MO
LIKELY ACTIVE332710
004-Nike Air Manufacturing Missouri
St. Charles, MO
LIKELY ACTIVE326199EMP 500+
Abbott Tool & Die, Inc.
O'Fallon, MO
LIKELY ACTIVE333514EMP 1-19
Adrian Steel of Missouri
Wentzville, MO
LIKELY ACTIVE337215EMP 20-99
A Grateful Nation LLC
Saint Charles, MO
LIKELY ACTIVE311920
Aquacomp Water Treatment Services LLC
Saint Charles, MO
LIKELY ACTIVE325998
Atlas Aerosystems LLC
Saint Charles, MO
LIKELY ACTIVE336411
Aviation Turbines International, INC.
O Fallon, MO
LIKELY ACTIVE336412
Blb Enterprise, LLC
Saint Charles, MO
LIKELY ACTIVE311999
Bte Mid Western LLC
Wentzville, MO
LIKELY ACTIVE333131
Cardinal Pump Company
Saint Peters, MO
LIKELY ACTIVE333914
Chef Pure Foods, LLC
O Fallon, MO
LIKELY ACTIVE311423
Chemtron Supply, LLC
Saint Charles, MO
LIKELY ACTIVE325998
Clyde Joseph Enterprises, LLC
Wentzville, MO
LIKELY ACTIVE332812
C.m. Products LLC
Saint Peters, MO
LIKELY ACTIVE333922
Cool Touch Graphics LLC
Saint Charles, MO
LIKELY ACTIVE323111
Corpair Supply Co., INC.
O Fallon, MO
LIKELY ACTIVE336413
Cosmos Corporation
St. Peters, MO
LIKELY ACTIVE325620EMP 100-499
Cutting Edge Optronics INC
Saint Charles, MO
LIKELY ACTIVE334413
Data2 Incorporated
O'Fallon, MO
LIKELY ACTIVE322299EMP 20-99
DIDION Manufacturing, LLC
St. Peters, MO
LIKELY ACTIVE333249EMP 20-99
Diode Dynamics, L.l.c.
Saint Charles, MO
LIKELY ACTIVE336320
Drug Package
O'Fallon, MO
LIKELY ACTIVE323111EMP 100-499
Fin-con Assembly Group, INC.
O Fallon, MO
LIKELY ACTIVE335929
Fixture Concepts, Inc.
St. Peters, MO
LIKELY ACTIVE337215EMP 20-99
Force Shield LLC
Saint Peters, MO
LIKELY ACTIVE336992
Forever Etched LLC
O Fallon, MO
LIKELY ACTIVE339999
Fusion Holdings, LLC
Saint Charles, MO
LIKELY ACTIVE325220
Gateway Precision Gear, INC
Saint Peters, MO
LIKELY ACTIVE333612
General Mills
St. Charles, MO
LIKELY ACTIVE311412EMP 100-499
Gray Matters Alliance LLC
O Fallon, MO
LIKELY ACTIVE339113
Great Journey West, LLC
Saint Charles, MO
LIKELY ACTIVE337214
Higear Innovations, LLC
O Fallon, MO
LIKELY ACTIVE339950
Holman Upfitting - St. Louis
O'Fallon, MO
LIKELY ACTIVE336211EMP 1-19
Holtec Gas Systems, LLC
Saint Charles, MO
LIKELY ACTIVE333998EMP 20-99
Honor 2 Our Heroes Foundation
Saint Charles, MO
LIKELY ACTIVE312112
Hustler Conveyor Company
O'Fallon, MO
LIKELY ACTIVE333249EMP 20-99
Infinity Online Marketplace LLC
Saint Peters, MO
LIKELY ACTIVE326199