Chemical manufacturers in California
California has 1,355 chemical makers in EPA records, facilities that list codes for basic, organic and specialty chemicals, resins and rubber. The most are in Los Angeles, San Diego and San Jose. That is 15% of the 8,779 such facilities nationwide, and California ranks first of 51 states.
- Product
- Chemical manufacturers
- Facilities
- 1,355
- State rank
- #1
- NAICS
- 325110 and 15 related codes
- Revised
- November 1, 2026
Facilities in California
These are active facilities in EPA's ECHO database that list a code for basic, organic and specialty chemicals, resins and rubber. The 40 shown first are the ones with the most EPA program records, which usually means the larger sites.
| Facility | City | What EPA lists |
|---|---|---|
| Tesoro Golden Eagle Refinery | Martinez | Industrial Gas Manufacturing |
| Corteva Agriscience - Pittsburg Operations | Pittsburg | Other Basic Inorganic Chemical Manufacturing |
| Pelican Renewables, LLC | Stockton | Petrochemical Manufacturing |
| Shell Catalysts &technologies | Bay Point | Other Basic Inorganic Chemical Manufacturing |
| Air Products and Chemicals, Inc. | Wilmington | Industrial Gas Manufacturing |
| Equilon Enterprises - Shell Oil Products - Dominguez Plant | Carson | Other Basic Inorganic Chemical Manufacturing |
| Air Products and Chemicals, Inc. | Carson | Industrial Gas Manufacturing |
| Aoc, LLC | Perris | Plastics Material and Resin Manufacturing |
| J.r. Simplot Company | Lathrop | Pesticide and Other Agricultural Chemical Manufacturing |
| Jr Simplot | Helm | Other Basic Inorganic Chemical Manufacturing |
| Engineered Polymer Solutions | Commerce | Plastics Material and Resin Manufacturing |
| New Basis (Frmly Associated Plastics) | Riverside | Custom Compounding of Purchased Resins |
| Pacific Ethanol Madera LLC | Madera | Petrochemical Manufacturing |
| Procter & Gamble | Sacramento | All Other Basic Organic Chemical Manufacturing |
| Newport Laminates | Santa Ana | Plastics Material and Resin Manufacturing |
| Chemtrade West US LLC | Richmond | Other Basic Inorganic Chemical Manufacturing |
| Chiquita Canyon S Landfill | Castaic | Petrochemical Manufacturing |
| Ineos Polypropylene, LLC | Carson | Plastics Material and Resin Manufacturing |
| Air Liquide Large Industries U.S., LP | El Segundo | Industrial Gas Manufacturing |
| Chinchiolo Stemilt | Stockton | Pesticide and Other Agricultural Chemical Manufacturing |
| Custom Marble And Onyx | Modesto | Plastics Material and Resin Manufacturing |
| Solvay USA Inc | Martinez | Other Basic Inorganic Chemical Manufacturing |
| Sunoco LP Stockton Terminal (#1) | Stockton | All Other Miscellaneous Chemical Product and Preparation Manufacturing |
| Performance Composites Inc | Compton | Custom Compounding of Purchased Resins |
| Pq Corporation | South Gate | Other Basic Inorganic Chemical Manufacturing |
| Air Liquide Large Industries US LP | Rodeo | Industrial Gas Manufacturing |
| Grafil Incorporated | Sacramento | Artificial and Synthetic Fibers and Filaments Manufacturing |
| Air Products-Torrance | Torrance | Industrial Gas Manufacturing |
| Plasticolor Molded Products Inc | Fullerton | Custom Compounding of Purchased Resins |
| Praxair Incorporated | Wilmington | Industrial Gas Manufacturing |
| Specialty Finishes Co | Fontana | Custom Compounding of Purchased Resins |
| Aemetis Advanced Fuels Keys Inc | Keyes | Industrial Gas Manufacturing |
| Alfco - Division Of Home Care Ind. Inc. | Carpinteria | Synthetic Rubber Manufacturing |
| Flint Group North America Corp | La Puente | Printing Ink Manufacturing |
| Hawaiian Fiberglass Pools Inc | Adelanto | Custom Compounding of Purchased Resins |
| Q.e.p. Inc. | Sun Valley | Plastics Material and Resin Manufacturing |
| Sunray Energy, Inc | Daggett | Custom Compounding of Purchased Resins |
| Viking Pools Inc. | Williams | Custom Compounding of Purchased Resins |
| Mecs, Inc. Avon Plant | Martinez | All Other Miscellaneous Chemical Product and Preparation Manufacturing |
| Phibro Tech Inc | Santa Fe Springs | Other Basic Inorganic Chemical Manufacturing |
Industry codes are reported by facilities to EPA programs and are not checked here. A few listings may be repair shops, distributors or recyclers. How these records work.
Where they are
- Los Angeles: 49
- San Diego: 47
- San Jose: 30
- Santa Fe Springs: 26
- Carson: 24
- Anaheim: 24
By product code
- Industrial Gas Manufacturing (NAICS 325120): 8 of those shown
- Other Basic Inorganic Chemical Manufacturing (NAICS 325180): 8 of those shown
- Custom Compounding of Purchased Resins (NAICS 325991): 7 of those shown
- Plastics Material and Resin Manufacturing (NAICS 325211): 6 of those shown
- Petrochemical Manufacturing (NAICS 325110): 3 of those shown
- Pesticide and Other Agricultural Chemical Manufacturing (NAICS 325320): 2 of those shown
- All Other Miscellaneous Chemical Product and Preparation Manufacturing (NAICS 325998): 2 of those shown
- All Other Basic Organic Chemical Manufacturing (NAICS 325199): 1 of those shown
- Synthetic Rubber Manufacturing (NAICS 325212): 1 of those shown
- Artificial and Synthetic Fibers and Filaments Manufacturing (NAICS 325220): 1 of those shown
- Printing Ink Manufacturing (NAICS 325910): 1 of those shown
All chemicals manufacturing in California: 4,424 facilities and Census job counts.