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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

Biggest counties

Los Angeles309San Bernardino107Orange75Alameda62Riverside55San Diego53Santa Clara42Ventura24

Biggest cities

Plants in California24 FACILITIES

Listing 24 of 53: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityEmployeesStatus
Delta Group Electronics INCSan Diego20–99 ACTIVE
Valley Metals, LLCPoway20–99 ACTIVE
Veridiam, INC.El Cajon100–499 ACTIVE
Decco Castings INCEl Cajon— ACTIVE
Apmfg Fabricators INCSan Marcos— ACTIVE
Century Tubes, INC.San Diego— ACTIVE
S. P. Reed INC.Encinitas— ACTIVE
K Tube CorporationPoway— LIKELY ACTIVE
Natl Steel & Shipbuilding a General Dynamics COSan Diego— LIKELY ACTIVE
L & T Precision, LLCPoway— LIKELY ACTIVE
Mccrink JosephCarlsbad— LIKELY ACTIVE
Pacific Steel Group, LLCSan Diego— LIKELY ACTIVE
Simonz Machine Dba Hyve TechnologiesSan Diego1–19 LIKELY ACTIVE
West Coast IronSpring Valley20–99 LIKELY ACTIVE
HoneywellSan Diego— UNVERIFIED
Rasirc INCSan Diego20–99 LIKELY ACTIVE
Rasirc INCSan Diego20–99 LIKELY ACTIVE
Specialty Steel Products, INC.San Diego1–19 LIKELY ACTIVE
Surfacemode, INCSan Diego— LIKELY ACTIVE
American Rim Supply INCCarlsbad— UNVERIFIED
Deanco Industrial Tires, INCEl Cajon— REPORTED CLOSED
Gsi Capital Partners LLCSan Marcos1–19 UNVERIFIED
Mtm IndustrialOceanside1–19 UNVERIFIED
The Bronzery, Inc.Escondido1–19 UNVERIFIED

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All primary metal manufacturing nationwide · All manufacturing in California