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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 California5,050 FACILITIES

FacilityCityEmployeesStatus
Ambiance Cosmetics, INCDuarte— ACTIVE
American Drug Screen CorporationIrwindale— ACTIVE
American Eagle Supply, INCWalnut— ACTIVE
Amgen USA INCNewbury Park— ACTIVE
An2 Therapeutics, INCMenlo Park— ACTIVE
Anpas Global LLCLaguna Niguel— ACTIVE
Antheia, INCMenlo Park— ACTIVE
Apnar Pharma, LPChino— ACTIVE
Apogee One Technologies INCTorrance— ACTIVE
Applied Biocode INCSanta Fe Springs— ACTIVE
Applied Biosystems, LLCCarlsbad— ACTIVE
Aptek Laboratories INCValencia— ACTIVE
Aqp One, INCGarden Grove— ACTIVE
Arbor Vita CORPFremont— ACTIVE
Arctom Scientific LLCAgoura Hills— ACTIVE
Ars Pharmaceuticals Operations, INC.San Diego— ACTIVE
Artificial Turf Supply LLCCarlsbad— ACTIVE
Artis Biosolutions LLCCarlsbad— ACTIVE
Asegua Therapeutics LLCFoster City— ACTIVE
Augment Therapeutics INC.Lake Forest— ACTIVE
Aurora Microplates, LLCSan Jose— ACTIVE
Baychem, INCMenlo Park— ACTIVE
BD BioscienceSan Diego100–499 ACTIVE
Becton, Dickinson and CompanyMilpitas— ACTIVE
Big Eye Diagnostics INCSan Diego— ACTIVE
Biochosen, INCEl Dorado Hills— ACTIVE
Biosearch Technologies, INC.Petaluma— ACTIVE
Blackmp Manufacturing INCVisalia— ACTIVE
Blazetamer USA LLCSan Diego— ACTIVE
Blue Line Supply CO LLCFresno— ACTIVE
Bowhead Health, INC.Los Angeles— ACTIVE
Bridgebio Pharma, INC.Palo Alto— ACTIVE
Bryant Ranch PrepackBurbank— ACTIVE
Cal Coast Pest Management INCNational City— ACTIVE
Calmoseptine, INC.Huntington Beach— ACTIVE
Cellibre, INC.San Diego— ACTIVE
Cellics Therapeutics INCSan Diego— ACTIVE
Cell Therapy Tools LLCIrvine— ACTIVE
Central Admixture Pharmacy Services, INCIrvine— ACTIVE
Ceres Remediation ProductsVenice— ACTIVE
Change Your Life LLCArcadia— ACTIVE
Chemco Systems, INC.Santa Fe Springs— ACTIVE
Chemical Manufacturers IncorporatedSan Jose— ACTIVE
Cinder Biological INC.San Leandro— ACTIVE
Clean Energy Fuels CORP.Newport Beach— ACTIVE
Coastbio, INC.Windsor— ACTIVE
Coherus Oncology, INC.Redwood City— ACTIVE
Combinati IncorporatedPalo Alto— ACTIVE
Corcept Therapeutics IncorporatedRedwood City— ACTIVE
Cordx, INC.San Diego— ACTIVE

Search all 5,050 facilities

All chemical manufacturing nationwide · All manufacturing in California