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 California15 FACILITIES
Listing 15 of 42: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Employees | Status |
|---|---|---|---|
| Aci Alloys, INC | San Jose | — | ACTIVE |
| Kuprion, INC. | San Jose | 20–99 | ACTIVE |
| Rareform Metals INC. | Campbell | — | ACTIVE |
| Acosta Sheet Metal Mfg INC | San Jose | 20–99 | LIKELY ACTIVE |
| Perfection Machining LLC | Morgan Hill | — | LIKELY ACTIVE |
| J & B Enterprises | Santa Clara | — | LIKELY ACTIVE |
| Wit Sales and Refining | San Jose | — | LIKELY ACTIVE |
| Diagnostic X-ray INC | San Jose | — | UNVERIFIED |
| Ecs Refining INC | Santa Clara | — | UNVERIFIED |
| J & B Enterprises | Santa Clara | — | UNVERIFIED |
| Metech Intl LLC | Gilroy | — | UNVERIFIED |
| O&y Precision INC | San Jose | — | UNVERIFIED |
| Headquarters | Santa Clara | 20–99 | LIKELY ACTIVE |
| Medtronic Santa Clara | Santa Clara | 20–99 | LIKELY ACTIVE |
| Advenira Enterprises INC | Sunnyvale | 1–19 | UNVERIFIED |
All primary metal manufacturing nationwide · All manufacturing in California