Chemical Processing · CA · page 2
Chemical Processing manufacturers in California
606 domestic chemical processing suppliers in California. Fabrication and machining for corrosive, high-pressure, and high-temperature service, where weld integrity and code compliance keep hazardous processes contained.
#1
of 50 by manufacturers listed
- 606
- In this state
- 12.9%
- Share of industry
- 22
- Set-aside registered
- 15
- Federal track record
of 50 on this page
of 50 hold awards
Standards that matter in chemical processing
3 to specify- ASME (U/S stamp)
- ASME B31.3
- ISO 9001:2015
Listings carry the federal set-aside registrations a company filed in SAM, not its quality-system certificates. Ask each shop for the current certificate and its scope before you release a drawing.
Chemical Processing suppliers in California
page 2 of 13- 51

Camarillo, CA · est. 2014
Biological Product (except Diagnostic) Manufacturing
Small disadvantaged+2—
- 52
Newbury Park, CA · est. 1980
Pharmaceutical Preparation Manufacturing
$12.2M
- 53
Newbury Park, CA · est. 1980
Pharmaceutical Preparation Manufacturing
$840.9M
- 54

Pharmaceutical Preparation Manufacturing
—
- 55

Santa Ana, CA · est. 2012
Industrial Chemicals & Gases · Fabricated Metal
Small disadvantaged+1—
- 56

Stockton, CA · est. 1975
Industrial Chemicals & Gases · Plastics & Rubber
Small disadvantaged+2—
- 57
Morgan Hill, CA · est. 1978
Industrial Chemicals & Gases
—
- 58

Laguna Niguel, CA · est. 2008
Industrial Distribution
Small disadvantaged+2—
- 59
Menlo Park, CA · est. 2013
Pharmaceutical Preparation Manufacturing
Small disadvantaged+1—
- 60
Davis, CA · est. 1962
In-Vitro Diagnostic Substance Manufacturing
$36K
- 61

Chino, CA · est. 2014
Pharmaceutical Preparation Manufacturing
Small disadvantaged+1—
- 62

Torrance, CA · est. 2020
Industrial Distribution
Minority-owned—
- 63

Santa Fe Springs, CA · est. 2008
Electronics & Instruments
—
- 64

Goleta, CA · est. 2013
Industrial Chemicals & Gases
—
- 65

Valencia, CA · est. 1986
Industrial Chemicals & Gases
—
- 66

Garden Grove, CA · est. 2018
Pharmaceutical Preparation Manufacturing
Small disadvantaged+3—
- 67

Fremont, CA · est. 1998
In-Vitro Diagnostic Substance Manufacturing
Small disadvantaged—
- 68

Agoura Hills, CA · est. 2017
Industrial Chemicals & Gases
—
- 69

Pharmaceutical Preparation Manufacturing
—
- 70
Carlsbad, CA · est. 2016
In-Vitro Diagnostic Substance Manufacturing
$28K
- 71
Fremont, CA · est. 2003
In-Vitro Diagnostic Substance Manufacturing
$280K
- 72

Sausalito, CA · est. 2008
Engineering & Testing
—
- 73

Carlsbad, CA · est. 2005
Industrial Chemicals & Gases
Small disadvantaged—
- 74

Foster City, CA · est. 2018
Pharmaceutical Preparation Manufacturing
—
- 75

Lake Forest, CA · est. 2021
Pharmaceutical Preparation Manufacturing
Small disadvantaged+1—
- 76

San Jose, CA · est. 2022
Industrial Chemicals & Gases
—
- 77
Tustin, CA · est. 1996
Biological Product (except Diagnostic) Manufacturing
—
- 78
San Jose, CA · est. 2025
In-Vitro Diagnostic Substance Manufacturing
Small disadvantaged—
- 79

Torrance, CA · est. 1971
Medicinal and Botanical Manufacturing
$765K
- 80

Menlo Park, CA · est. 1986
Industrial Chemicals & Gases · Industrial Distribution
Woman-owned—
- 81
Brea, CA · est. 1935
Electronics & Instruments · Medical Devices
$366.5M
- 82

San Diego, CA · est. 2021
In-Vitro Diagnostic Substance Manufacturing
$600K
- 83

Pacheco, CA · est. 1997
Electronics & Instruments
$821K
- 84

Newark, CA · est. 1994
Biological Product (except Diagnostic) Manufacturing
Minority-owned—
- 85

Morgan Hill, CA · est. 1978
In-Vitro Diagnostic Substance Manufacturing
$313K
- 86
Fremont, CA · est. 2017
Biological Product (except Diagnostic) Manufacturing
Small disadvantaged—
- 87
Pasadena, CA · est. 2016
Pharmaceutical Preparation Manufacturing
—
- 88
Pharmaceutical Preparation Manufacturing
—
- 89
San Leandro, CA · est. 2019
Industrial Chemicals & Gases
Small disadvantaged+1—
- 90
Fremont, CA · est. 2020
In-Vitro Diagnostic Substance Manufacturing
Small disadvantaged+1—
- 91
La Verne, CA · est. 2023
Medical Devices · Engineering & Testing
Small disadvantaged+1$61.2M
- 92
Irvine, CA · est. 1975
Industrial Chemicals & Gases
—
- 93
Fresno, CA · est. 1949
Industrial Chemicals & Gases · Machinery & Tooling
Veteran-owned—
- 94
Milpitas, CA · est. 1991
Electronics & Instruments
$64.6M
- 95
Santa Ana, CA · est. 1947
Industrial Chemicals & Gases
$7K
- 96
San Diego, CA · est. 1987
Electronics & Instruments
$8.8M
- 97
Hercules, CA · est. 1975
Industrial Chemicals & Gases · Electronics & Instruments
$1.9M
- 98
San Carlos, CA · est. 2017
In-Vitro Diagnostic Substance Manufacturing
Small disadvantaged+3—
- 99

San Diego, CA · est. 2025
Pharmaceutical Preparation Manufacturing
Small disadvantaged+1—
- 100
Pharmaceutical Preparation Manufacturing
Small disadvantaged+1—
51–100 of 606
Chemical Processing in other states
49 states- Texas383
- Florida267
- New Jersey259
- Pennsylvania216
- Massachusetts205
- New York191
- Illinois189
- Ohio172
- North Carolina171
- Michigan151
- Georgia147
- Maryland141
- Virginia109
- Washington86
- Colorado86
- Connecticut82
- Tennessee81
Other industries in California
42 verticals- Metal Fabrication1,854
- Instrumentation, Test & Measurement856
- Electronics727
- Aerospace644
- Medical Devices591
- Electrical Equipment & Components477
- Consumer Products426
- Semiconductor328
- Signage, Printing & Marking312
- Wire, Cable & Interconnect307
- Food & Beverage Processing302
- Textiles & Apparel298
- Optics & Photonics293
- Telecommunications292
- Renewable Energy (Solar & Wind)276
- Pharmaceutical272
- Industrial Machinery264
- Plastics & Rubber Products227
- Fasteners & Hardware205
- Pulp, Paper & Packaging192
- Robotics & Automation177
- Defense162
- Furniture144
- Marine & Shipbuilding135
- Building Products & Materials134
- Space & Satellite132
- HVAC & Refrigeration79
- Automotive74
- EV & Battery66
- Wood Products & Millwork62
- Lighting58
- Sporting Goods53
- Tanks, Vessels & Heat Exchangers49
- Firearms & Ammunition43
- Primary Metals & Foundry43
- Fluid Power & Hydraulics38
- Heavy Truck, Trailer & Vehicle Bodies35
- Water & Wastewater22
- Agricultural Equipment19
- Construction Equipment15
- Energy & Power Generation15
- Oil & Gas11
What buyers specify in chemical processing
3 requirements- 01Code pressure vessels and process piping
- 02Corrosion-resistant alloy and exotic-metal fabrication
- 03Certified welding with material traceability
Everything made in California, not just chemical processing.
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