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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

Products made in California750 PRODUCTS

ProductSourceFacilities
Enzyme Immunoassay, MethotrexateFederal registry1
Enzyme Immunoassay, Oxcarbazepine MetaboliteFederal registry1
Enzyme Linked Immunoabsorbent Assay, Herpes Simplex Virus, Non-SpecificFederal registry1
Enzyme Linked Immunoabsorbent Assay, Mumps VirusFederal registry1
Enzyme Linked Immunoabsorbent Assay, RubellaFederal registry1
Enzyme Linked Immunoabsorbent Assay, Rubeola IggFederal registry1
Enzyme Linked Immunoabsorbent Assay, Varicella-ZosterFederal registry1
Enzyme Linked Immunoabsorption Assay, Treponema PallidumFederal registry1
Eosin YFederal registry1
Eraser, Dental StainFederal registry1
Fiber, Medical, AbsorbentFederal registry1
Fibrinogen StandardFederal registry1
Filters, Cell Collection, Tissue ProcessingFederal registry1
Flow Cytometric Reagents And Accessories.Federal registry1
Fluorometer, For Clinical UseFederal registry1
Fluorometric Method, Cpk Or IsoenzymesFederal registry1
Flushing Solution For Short Term Storage Of Veins At Room Temperature During Coronary Artery Bypass Graft SurgeriesFederal registry1
Formulations, Balanced Salt SolutionsFederal registry1
Gabapentin AssayFederal registry1
Gas, Calibration (Specified Concentration)Federal registry1
Gas Chromatography, SalicylateFederal registry1
Gas, Laser GeneratingFederal registry1
Gastrointestinal Pathogen Panel Multiplex Nucleic Acid-Based Assay SystemFederal registry1
Gbs Culture Media, Selective And DifferentialFederal registry1
Giardia Spp.Federal registry1
Heat Source For Bleaching TeethFederal registry1
Heavy Metals Control MaterialsFederal registry1
HematoxylinFederal registry1
Hemoglobin A2 QuantitationFederal registry1
Hepatitis A Test (Antibody And Igm Antibody)Federal registry1
Herpes Simplex Virus Nucleic Acid Amplification AssayFederal registry1
Herpes Virus (Vzv, Hsv1, Hsv2), Dna Detection Assay For Cutaneous And Mucocutaneous Lesion SamplesFederal registry1
High Throughput Dna Sequence AnalyzerFederal registry1
Hsv-1 And Hsv-2 Cns Nucleic-Acid Based PanelFederal registry1
Human Leukocyte Antigen (Hla) Typing Companion Diagnostic TestFederal registry1
Illuminator System For Blood ProductsFederal registry1
Immunoassay, Anti-Seizure DrugFederal registry1
Immunochemical, Thyroglobulin AutoantibodyFederal registry1
Immunofluorescent Assay, T. CruziFederal registry1
Immunohistochemistry Antibody Assay, Estrogen ReceptorFederal registry1
Immunohistochemistry Assay, Antibody, Progesterone ReceptorFederal registry1
Indicator Method, Protein Or Albumin (Urinary, Non-Quant.)Federal registry1
Injection Data Capture DeviceFederal registry1
Instrumentation, High Pressure Liquid ChromatographyFederal registry1
Instruments, Surgical, CardiovascularFederal registry1
Instrument, Ultrasonic SurgicalFederal registry1
Insulin Pump Secondary DisplayFederal registry1
Integrated Continuous Glucose Monitor For Non-Intensive Glucose Management, Over-The-CounterFederal registry1
Integrated Continuous Glucose Monitoring System, Factory Calibrated, Not For Use With Automated Insulin Delivery SystemsFederal registry1
Integrated Continuous Glucose Monitoring System For Non-Intensive Diabetes ManagementFederal registry1

Search all 5,050 facilities

All chemical manufacturing nationwide · All manufacturing in California

Chemical Manufacturers in California · FactoryRegistry