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Chemical Manufacturing in California

NAICS 325 · CA

California is home to Chemical Manufacturing, an industry with 2,584 establishments counted by the Bureau of Labor Statistics in 2024. The register lists 5,050 facilities in California as of 2026, with 5 new facilities first seen this year. BIOMARIN PHARMACEUTICAL in Novato had 2,086 employees in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Biggest counties

Los Angeles1,179San Diego572Orange472Alameda407Santa Clara287San Bernardino271San Mateo266Riverside159

Biggest cities

Plants in California572 FACILITIES

FacilityCityEmployeesStatus
Moleculemind LLCSan Marcos— ACTIVE
Neurocrine Biosciences, INC.San Diego— ACTIVE
Polymer Innovations, INC.Vista— ACTIVE
Prowest Technologies INCSan Marcos— ACTIVE
Pure Bioscience, INC.San Diego— ACTIVE
Quidelortho Sales Company, LLCSan Diego— ACTIVE
Reynolds Graphic Arts CorporationEl Cajon— ACTIVE
Rezsun Technologies INCEl Cajon— ACTIVE
Ronatec C2c INCOceanside— ACTIVE
Sohm, INCSan Diego— ACTIVE
Southwest Paint Products, INC.Escondido— ACTIVE
Stoody Industrial & Welding Supply, INC.San Diego— ACTIVE
Tom DieckilmanCarlsbad— ACTIVE
Vitae Enim Vitae Scientific, INC.San Diego— ACTIVE
Vtru CorporationOceanside— ACTIVE
Zoom Products, LLC.La Mesa— ACTIVE
Pacira PharmaceuticalsSan Diego100–499 LIKELY ACTIVE
Polypeptide Laboratories San Diego (ppl-sd)San Diego20–99 LIKELY ACTIVE
AbzenaSan Diego100–499 LIKELY ACTIVE
Air Products & Chemicals INCCarlsbad— LIKELY ACTIVE
Beckman Coulter INCCarlsbad— LIKELY ACTIVE
Designer Molecules, INC.San Diego— LIKELY ACTIVE
Gilead Sciences INCOceanside100–499 LIKELY ACTIVE
Inova DiagnosticsSan Diego— LIKELY ACTIVE
Ionis Pharmaceuticals INCCarlsbad— LIKELY ACTIVE
Qualigen IcCarlsbad— LIKELY ACTIVE
Bachem Americas INC.Vista— LIKELY ACTIVE
Ccm EnterprisesSantee— LIKELY ACTIVE
Irisys INCSan Diego— LIKELY ACTIVE
Aldila INCPoway— UNVERIFIED
Alere San DiegoSan Diego— UNVERIFIED
Callaway Golf COCarlsbad— UNVERIFIED
Frazee IndustriesSan Diego— UNVERIFIED
HydrovidaSan Diego— LIKELY ACTIVE
Nielsen Biosciences INCSan Diego— LIKELY ACTIVE
Advin Biotech INCSan Diego— LIKELY ACTIVE
Allele Diagnostics, INC.San Diego— LIKELY ACTIVE
Augusta Life Sciences US Opco I LLCSan Diego— LIKELY ACTIVE
Autogenomics INCCarlsbad— LIKELY ACTIVE
Cliniqa CorporationSan Marcos— LIKELY ACTIVE
Clinqa CorporationSan Marcos— LIKELY ACTIVE
Cytohub INCSan Diego— LIKELY ACTIVE
Dr. Bronner's Vista PlantVista100–499 LIKELY ACTIVE
Hammerhead Aviation LLCEl Cajon20–99 LIKELY ACTIVE
Industrial Metal Processing, INCSantee— LIKELY ACTIVE
Lumos DiagnosticsCarlsbad— LIKELY ACTIVE
Microbiologics - San DiegoSan Diego20–99 LIKELY ACTIVE
Mytee LLCPoway20–99 LIKELY ACTIVE
Pci San Diego INCSan Diego100–499 LIKELY ACTIVE
San DiegoSan Diego1–19 LIKELY ACTIVE

Search all 5,050 facilities

All chemical manufacturing nationwide · All manufacturing in California