Primary Metal Manufacturing in Illinois
NAICS 331 · IL
This register lists 550 facilities in Illinois. The Bureau of Labor Statistics counted 336 establishments in the Primary Metal Manufacturing industry in Illinois in 2025. Mapleton Foundry in Mapleton employed 1,186 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Illinois384 FACILITIES
Listing 384 of 550: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Allied Metal CO | Chicago | 20–99 | LIKELY ACTIVE |
| Custom Steel Processing, INC. | Granite City | — | LIKELY ACTIVE |
| Durable Incorporated | Wheeling | 100–499 | LIKELY ACTIVE |
| Lavin & Sons | North Chicago | — | LIKELY ACTIVE |
| Mbaf - Division of G&w Electric | Blue Island | — | LIKELY ACTIVE |
| Nehring Electric | Dekalb | — | LIKELY ACTIVE |
| Nta Precision Axle CORP | Carol Stream | — | LIKELY ACTIVE |
| Penn Aluminum | Murphysboro | — | LIKELY ACTIVE |
| Qualitek International INC | Addison | — | LIKELY ACTIVE |
| Steel Warehouse of Quad Cities | Rock Island | — | LIKELY ACTIVE |
| A-1 Wire Tech INC. | Rockford | — | UNVERIFIED |
| Ace Metal Crafts CO | Franklin Park | — | UNVERIFIED |
| Adc Diecasting LLC | Elkgrove Village | — | UNVERIFIED |
| Adc LP | Wheeling | — | UNVERIFIED |
| Advantage Automation Midwest INC | Decatur | — | UNVERIFIED |
| A Finkl & Sons CO | Chicago | — | UNVERIFIED |
| Alcasco Foundry | Harvey | — | UNVERIFIED |
| Alliance Tubular Holdings LLC | Dixmoor | — | UNVERIFIED |
| Allied Die Casting CORP | Mchenry | — | UNVERIFIED |
| Altman & Koehler Foundry CO INC | Chicago | — | UNVERIFIED |
| Altman Ron | Chicago | — | UNVERIFIED |
| Alumetco | Chicago | — | UNVERIFIED |
| Always Aluminum | Rockford | — | UNVERIFIED |
| Amcast INC | Bensenville | — | UNVERIFIED |
| Amco Engineering CO | Schiller Park | — | UNVERIFIED |
| American Precision Castings INC | Chicago | — | UNVERIFIED |
| American Stair CORP | Romeoville | — | UNVERIFIED |
| Ames Metal Products CO | Chicago | — | UNVERIFIED |
| Ampco Metal INC. | Arlington Heights | — | UNVERIFIED |
| Arcelormittal Hennepin LLC | Hennepin | — | UNVERIFIED |
| Arrow Pattern and Foundry CO | Bridgeview | — | UNVERIFIED |
| Atherton Foundry Products INC | Riverdale | — | UNVERIFIED |
| Base Metals Group | Alsip | — | UNVERIFIED |
| Bee-jay Industries INC | Harwood Heights | — | UNVERIFIED |
| Behr Iron & Metal | Peoria | — | UNVERIFIED |
| Bromley Excavating | Centralia | — | UNVERIFIED |
| Bull Moose Tube CO | Chicago Heights | — | UNVERIFIED |
| Callen Manufacturing CORP | Northlake | — | UNVERIFIED |
| Cannon Precision Manufacturing | Keithsburg | — | UNVERIFIED |
| Capitol Engineering & Manufacturing CO | Harvey | — | UNVERIFIED |
| Cast Technologies INC. | Peoria | — | UNVERIFIED |
| Central Die Casting | Chicago | — | UNVERIFIED |
| Central Steel & Wire CO | Chicago | — | UNVERIFIED |
| Certified Equip & Mfg CO | Springfield | — | UNVERIFIED |
| Chester Foundry | Chester | — | UNVERIFIED |
| Chicago Aluminum Castings CO INC | Chicago | — | UNVERIFIED |
| Chris Plating | Northbrook | — | UNVERIFIED |
| Cimco Recycling | Marion | — | UNVERIFIED |
| Circle Smelting CORP | Beckemeyer | — | UNVERIFIED |
| Citation Dycast | Lake Zurich | — | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in Illinois