Primary Metal Manufacturing in California
NAICS 331 · CA
This register lists 901 facilities in California. The Bureau of Labor Statistics counted 474 establishments in California. CALIFORNIA STEEL INDUSTRIES, located in Fontana, employed 717 people in 2025.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and product lines
Plants in California18 FACILITIES
Listing 18 of 29: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Karan and Associates, INC | Fontana | 1–19 | ACTIVE |
| Tst INC | Fontana | 100–499 | ACTIVE |
| Pacific Corrugated Pipe Company LLC | Fontana | — | ACTIVE |
| California Steel Industries INC | Fontana | 500+ | LIKELY ACTIVE |
| Vista Metals CORP | Fontana | 100–499 | LIKELY ACTIVE |
| Forged Metals INC | Fontana | 100–499 | LIKELY ACTIVE |
| California Steel Industries | Fontana | 500+ | LIKELY ACTIVE |
| Sierra Aluminum- Finishing | Fontana | 100–499 | LIKELY ACTIVE |
| Regional Steel CORP | Fontana | — | LIKELY ACTIVE |
| Sierra Aluminum Company | Fontana | — | LIKELY ACTIVE |
| Ameron Steel Fabrication Division | Fontana | — | UNVERIFIED |
| Sierra Aluminum - Bonanza | Fontana | 100–499 | LIKELY ACTIVE |
| Sierra Aluminum - NAPA | Fontana | 20–99 | LIKELY ACTIVE |
| Sierra Aluminum - Union | Fontana | 20–99 | LIKELY ACTIVE |
| American Die Casting | Fontana | — | UNVERIFIED |
| Camco Machine INC | Fontana | 1–19 | UNVERIFIED |
| Hartman Industries Dba Commercial Casting Company | Fontana | 20–99 | UNVERIFIED |
| The Hrem INC | Fontana | 1–19 | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in California