Manufacturing in St. Clair County, Illinois
This register lists 313 facilities in St. Clair, Illinois. The Bureau of Labor Statistics counted 156 establishments in St. Clair in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and benchmark
Biggest cities
Federal labor statistics counted at least 156 manufacturing establishments in St. Clair County in 2025, employing about 4,092 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 313.
Facilities156 FACILITIES
Listing 156 of 313: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Industry | NAICS | Employees | Status |
|---|---|---|---|---|---|
| Affton Fabricating and Welding Co., INC. | Sauget | Fabricated Metal Product Manufacturing | 332312 | 20–99 | ACTIVE |
| Afton Chemical Corporation | Sauget | Petroleum and Coal Products Manufacturing | 324191 | 100–499 | ACTIVE |
| Belleville Shoe Manufacturing Company | Belleville | Leather and Allied Product Manufacturing | 316210 | 100–499 | ACTIVE |
| Hts Coatings LLC | Madison | Fabricated Metal Product Manufacturing | 332812 | 1–19 | ACTIVE |
| Kaskaskia Tool and Machine, INC | New Athens | Fabricated Metal Product Manufacturing | 332710 | 20–99 | ACTIVE |
| Peerless-premier Appliance CO. | Belleville | Electrical Equipment, Appliance & Component Manufacturing | 335220 | 20–99 | ACTIVE |
| Progressive Recovery INC | Dupo | Fabricated Metal Product Manufacturing | 332420 | — | ACTIVE |
| Red Maple Manufacturing, INC | East Saint Louis | Miscellaneous Manufacturing | 339991 | 1–19 | ACTIVE |
| Roho INC | Belleville | Plastics and Rubber Products Manufacturing | 326199 | — | ACTIVE |
| Siemens Manufacturing CO INC | Freeburg | Computer and Electronic Product Manufacturing | 334416 | 100–499 | ACTIVE |
| Branding Iron Holdings - Holten Meat | Sauget | Food Manufacturing | 311612 | 100–499 | ACTIVE |
| Hydro-dredge Accessory Company | Smithton | Plastics and Rubber Products Manufacturing | 326299 | 20–99 | ACTIVE |
| Martin Steel Fabrication, INC. | Mascoutah | Fabricated Metal Product Manufacturing | 332312 | 1–19 | ACTIVE |
| Avmats Midamerica, LLC | Mascoutah | Fabricated Metal Product Manufacturing | 332812 | — | ACTIVE |
| Crs Enviromask LLC | Lebanon | Miscellaneous Manufacturing | 339113 | — | ACTIVE |
| Jam Right I Can LLC | O Fallon | Food Manufacturing | 311421 | — | ACTIVE |
| Jam Right I Can LLC | O'fallon | Food Manufacturing | 311421 | — | ACTIVE |
| Langeenterprise LLC | Belleville | Leather and Allied Product Manufacturing | 316990 | — | ACTIVE |
| Redwing Rc, LLC | Lebanon | Transportation Equipment Manufacturing | 336411 | — | ACTIVE |
| Salt Industries, LLC | East Saint Louis | Chemical Manufacturing | 325998 | — | ACTIVE |
| Signsinsymbols LLC | O Fallon | Printing and Related Support Activities | 323111 | — | ACTIVE |
| Crysalis Biosciences, INC. | Sauget | Chemical Manufacturing | 325193 | 20–99 | LIKELY ACTIVE |
| Custom Marble INC | Millstadt | Plastics and Rubber Products Manufacturing | 326191 | 20–99 | LIKELY ACTIVE |
| Solvay Fluorides LLC | East St Louis | Chemical Manufacturing | 325130 | 20–99 | LIKELY ACTIVE |
| Stellar Manufacturing LLC | Sauget | Chemical Manufacturing | 325130 | 100–499 | LIKELY ACTIVE |
| U Mark, INC | Belleville | Miscellaneous Manufacturing | 339940 | 20–99 | LIKELY ACTIVE |
| Empire Comfort Systems | Belleville | Machinery Manufacturing | 333414 | 100–499 | LIKELY ACTIVE |
| Kempen Paint CO | East Carondelet | Chemical Manufacturing | 325510 | 1–19 | LIKELY ACTIVE |
| Midwest Nonwovens LLC | Sauget | Textile Mills | 313210 | 20–99 | LIKELY ACTIVE |
| Advancepierre Foods | Caseyville | Food Manufacturing | 311612 | — | LIKELY ACTIVE |
| Allnex USA INC | East St. Louis | Chemical Manufacturing | 325211 | — | LIKELY ACTIVE |
| Chelar Tool & Die, Inc. | Belleville, Il | Machinery Manufacturing | 333514 | 20–99 | LIKELY ACTIVE |
| Empire Comfort Systems | Belleville | Chemical Manufacturing | 325211 | 100–499 | LIKELY ACTIVE |
| Kettler Casting CO INC | Belleville | Primary Metal Manufacturing | 331511 | 20–99 | LIKELY ACTIVE |
| Vertex Chemical CORP | Dupo | Chemical Manufacturing | 325131 | — | LIKELY ACTIVE |
| Century Castings CORP | Belleville | Primary Metal Manufacturing | 331529 | 20–99 | LIKELY ACTIVE |
| Cerro Flow Products LLC | Sauget | Primary Metal Manufacturing | 331420 | — | LIKELY ACTIVE |
| Custom Coating Innovations INC | Belleville | Plastics and Rubber Products Manufacturing | 326199 | 1–19 | LIKELY ACTIVE |
| East Side Jersey Dairy - O'fallon, Il | O'fallon | Food Manufacturing | 311511 | — | LIKELY ACTIVE |
| General Chemical Corporation - E. St. Louis Works | East Saint Louis | Chemical Manufacturing | 325130 | — | LIKELY ACTIVE |
| Hubbell - Wiegmann | Freeburg | Fabricated Metal Product Manufacturing | 332119 | — | LIKELY ACTIVE |
| Oldcastle Lawn & Garden | Sauget | Wood Product Manufacturing | 321999 | — | LIKELY ACTIVE |
| Petra Industries INC | Fairmont City | Miscellaneous Manufacturing | 339999 | — | LIKELY ACTIVE |
| Roho INC | Belleville | Plastics and Rubber Products Manufacturing | 326199 | — | LIKELY ACTIVE |
| Videojet Technologies INC | Belleville | Chemical Manufacturing | 325910 | — | LIKELY ACTIVE |
| Upchurch Ready Mix Concrete | Cahokia | Nonmetallic Mineral Product Manufacturing | 327320 | 1–19 | UNVERIFIED |
| Beelman Ready-mix, INC | East Saint Louis | Nonmetallic Mineral Product Manufacturing | 327320 | — | LIKELY ACTIVE |
| Fire Cam LLC | Belleville | Computer and Electronic Product Manufacturing | 334310 | — | LIKELY ACTIVE |
| Hanger Prosthetics & Orthotics East, INC | Fairview Heights | Miscellaneous Manufacturing | 339113 | — | LIKELY ACTIVE |
| Umami Foods LLC | Fairview Heights | Food Manufacturing | 311991 | — | LIKELY ACTIVE |
