Primary metals manufacturers in California
California has 264 primary metals establishments employing 11,550 people (Census, 2023), and EPA's ECHO database lists 618 active primary metals facilities in the state. By employment it is California's number 17 manufacturing industry, and California ranks number 10 among states for it.
- NAICS subsector
- 331
- Primary Metal Manufacturing
- Establishments
- 264
- Census 2023
- Employees
- 11,550
- Census 2023
- In EPA records
- 618
- With a page here
- 15
- Revised
- November 11, 2026
Primary metals factories with a page
| Facility | What it makes (NAICS) | City |
|---|---|---|
| Ab&i Foundry | Iron Foundries | Oakland |
| Davis Wire Corp | Steel Wire Drawing | Irwindale |
| Ecobat Resources California Inc | Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | City of Industry |
| Exide Technologies | Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) | Los Angeles |
| Kasier Aluminum Fabricted Products LLC | Other Aluminum Rolling, Drawing, and Extruding | Los Angeles |
| Light Metals Inc | Secondary Smelting and Alloying of Aluminum | City of Industry |
| Northwest Pipe Co | Iron and Steel Pipe and Tube Manufacturing from Purchased Steel | Adelanto |
| Nucor California Steel Industries | Rolled Steel Shape Manufacturing | Fontana |
| Sapa Extruder, Inc | 331316 | City of Industry |
| Sierra Aluminum Co | 331316 | Riverside |
| Sierra Aluminum Company | Other Aluminum Rolling, Drawing, and Extruding | Fontana |
| Tamco | Iron and Steel Mills and Ferroalloy Manufacturing | Rancho Cucamonga |
| United States Pipe & Foundry Co LLC | Iron Foundries | Union City |
| Uss-Upi, LLC | Rolled Steel Shape Manufacturing | Pittsburg |
| Vista Metals Corp | Secondary Smelting and Alloying of Aluminum | Fontana |
These are the California primary metals facilities that report to EPA's Toxics Release Inventory. The other 603 in EPA records don't have a page yet.
What these factories make
- Secondary Smelting and Alloying of Aluminum (NAICS 331314): 5 facilities
- Other Aluminum Rolling, Drawing, and Extruding (NAICS 331318): 5 facilities
- Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum) (NAICS 331492): 3 facilities
- Iron Foundries (NAICS 331511): 2 facilities
- Iron and Steel Pipe and Tube Manufacturing from Purchased Steel (NAICS 331210): 2 facilities
- Rolled Steel Shape Manufacturing (NAICS 331221): 2 facilities
- Iron and Steel Mills and Ferroalloy Manufacturing (NAICS 331110): 2 facilities
- Aluminum Foundries (except Die-Casting) (NAICS 331524): 2 facilities
- Steel Wire Drawing (NAICS 331222): 1 facility
- Aluminum Sheet, Plate, and Foil Manufacturing (NAICS 331315): 1 facility
Where they cluster
Cities with the most active primary metals facilities in EPA records: Los Angeles (40), Anaheim (17), Santa Fe Springs (15), Gardena (14), Oakland (13).
New primary metals plants in California
Primary metals manufacturing across the US. Everything made in California.