Primary Metal Manufacturing in Missouri
NAICS 331 · MO
The register lists 247 facilities in Missouri. According to the Bureau of Labor Statistics, there were 160 establishments in the Primary Metal Manufacturing industry in Missouri in 2025. TOYOTA MOTOR MFG MISSOURI INC in Troy employed 1,082 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in Missouri8 FACILITIES
Listing 8 of 13: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| O'fallon Casting, L.l.c. | O Fallon | 100–499 | ACTIVE |
| Precision Components & Assemblies, INC | Saint Peters | 1–19 | ACTIVE |
| Trinity Products, LLC | O'fallon | 100–499 | LIKELY ACTIVE |
| Mp Industries, INC. | O'fallon | 20–99 | LIKELY ACTIVE |
| Hitchiner Manufacturing Company | Ofallon | — | LIKELY ACTIVE |
| Didion & Sons Foundry CO | St. Peters | — | LIKELY ACTIVE |
| Mitek Industries INC | Saint Charles | — | LIKELY ACTIVE |
| Leonards Metal Inc-hwy 94 Plant | St. Charles | — | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in Missouri