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Chemical Manufacturing in California

NAICS 325 · CA

The Chemical Manufacturing industry in California has 2,528 establishments, according to the Bureau of Labor Statistics. This register lists 5,132 facilities in California. The AOC LLC facility in Perris employs 1,860 people, according to 2025 data.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and product lines

Biggest counties

Los Angeles1,204San Diego585Orange480Alameda409Santa Clara278San Bernardino277San Mateo267Riverside174

Biggest cities

Plants in California1,637 FACILITIES

Listing 1,637 of 5,132: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityEmployeesStatus
Aurora Microplates, LLCSan Jose— ACTIVE
Baychem, INCMenlo Park— ACTIVE
BD BioscienceSan Diego100–499 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
Ceres Remediation ProductsVenice— ACTIVE
Change Your Life LLCArcadia— ACTIVE
Chemical Manufacturers IncorporatedSan Jose— ACTIVE
Cina Consulting, LLCPalo Alto— ACTIVE
Cinder Biological INC.San Leandro— ACTIVE
Clean EnergyNewport Beach— ACTIVE
Clean Energy Fuels CORP.Newport Beach— ACTIVE
Clean Saint LLCSherman Oaks— ACTIVE
Coastbio, INC.Windsor— ACTIVE
Combinati IncorporatedPalo Alto— ACTIVE
Corcept Therapeutics IncorporatedRedwood City— ACTIVE
Cosmo Bio USA INCCarlsbad— ACTIVE
Cpc Scientific INCRocklin— ACTIVE
Crinetics Pharmaceuticals, INCSan Diego— ACTIVE
Cytokinetics, IncorporatedSouth San Francisco— ACTIVE
Day One Biopharmaceuticals, INCBrisbane— ACTIVE
Defined Bioscience INCSan Diego— ACTIVE
Desert Valley Services, INC.Coachella— ACTIVE
Digidat INCCastaic— ACTIVE
Ejoule INCFremont— ACTIVE
E'lan StatisticsSherman Oaks— ACTIVE
Emerging Holdings INCBakersfield— ACTIVE
Emmaus Medical, INCTorrance— ACTIVE
Energysource Minerals, LLCCarlsbad— ACTIVE
Epigen Biosciences INCSan Diego— ACTIVE
Ertec Environmental Systems LLCAlameda— ACTIVE
Evofem Biosciences, INC.San Diego— ACTIVE
Extremis Systems LLCSacramento— ACTIVE
Eztia CORPDiamond Bar— ACTIVE
Fame Marketing and Trading LLCIrvine— ACTIVE
Firenza PiniHayfork— ACTIVE
Firetect, INCValencia— ACTIVE
Firstvitals INCDanville— ACTIVE
Forta Bio INCLivermore— ACTIVE

Search all 5,132 facilities

All chemical manufacturing nationwide · All manufacturing in California