Manufacturing in Williamson County, Illinois
This register lists 79 facilities in Williamson, Illinois. The Bureau of Labor Statistics counted 23 establishments in Williamson. Machinery Manufacturing, according to the Bureau of Labor Statistics, employed 52 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and benchmark
Biggest cities
Federal labor statistics counted at least 23 manufacturing establishments in Williamson County in 2025, employing about 168 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 79.
Facilities22 FACILITIES
Listing 22 of 43: 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 |
|---|---|---|---|---|---|
| Aisin Mfg Illinois LLC | Marion | Transportation Equipment Manufacturing | 336390 | 500+ | ACTIVE |
| Crisp Container CO | Marion | Plastics and Rubber Products Manufacturing | 326160 | 20–99 | ACTIVE |
| Protek Communications, LLC | Marion | Computer and Electronic Product Manufacturing | 334111 | — | ACTIVE |
| Pepsi Midamerica CO | Marion | Beverage and Tobacco Product Manufacturing | 312111 | 100–499 | LIKELY ACTIVE |
| General Dynamics Ordnance & Tactical Systems INC Bfp Area | Marion | Fabricated Metal Product Manufacturing | 332992 | — | LIKELY ACTIVE |
| Diagaph/itw CO | Marion | Chemical Manufacturing | 325910 | — | LIKELY ACTIVE |
| General Dynamics Ordnance & Tactical Systems INC I Area | Marion | Fabricated Metal Product Manufacturing | 332992 | — | LIKELY ACTIVE |
| Aisin Light Metals LLC | Marion | Transportation Equipment Manufacturing | 336390 | 100–499 | LIKELY ACTIVE |
| General Dynamics Ots Test Rang | Marion | Chemical Manufacturing | 325920 | — | LIKELY ACTIVE |
| Aisin Electronics Illinois LLC | Marion | Computer and Electronic Product Manufacturing | 334419 | — | LIKELY ACTIVE |
| General Dynamics Ots Area 13 | Marion | Chemical Manufacturing | 325920 | — | LIKELY ACTIVE |
| Perma-treat of Illinois INC | Marion | Wood Product Manufacturing | 321114 | — | LIKELY ACTIVE |
| Southern Illinois Redi-mix INC | Marion | Nonmetallic Mineral Product Manufacturing | 327320 | — | LIKELY ACTIVE |
| Cimco Recycling | Marion | Primary Metal Manufacturing | 331492 | — | UNVERIFIED |
| General Dynamics Ordnance & Tactical Systems INC | Marion | Fabricated Metal Product Manufacturing | 332992 | — | UNVERIFIED |
| General Dynamics-ots P-area | Marion | Fabricated Metal Product Manufacturing | 332992 | — | UNVERIFIED |
| Short Brothers Construction INC | Marion | Petroleum and Coal Products Manufacturing | 324121 | — | UNVERIFIED |
| Marion, IL | Marion | Fabricated Metal Product Manufacturing | 332722 | 20–99 | LIKELY ACTIVE |
| Heartland Metal Sales, LLC | Marion | Fabricated Metal Product Manufacturing | 332312 | 1–19 | UNVERIFIED |
| Odum Concrete Products INC | Marion | Nonmetallic Mineral Product Manufacturing | 327320 | 1–19 | UNVERIFIED |
| Shew Brothers INC. | Marion | Fabricated Metal Product Manufacturing | 332312 | 1–19 | UNVERIFIED |
| Southern Illinois Redi-mix INC | Marion | Nonmetallic Mineral Product Manufacturing | 327320 | 1–19 | UNVERIFIED |
