FactoryRegistry
Claim a page

Manufacturing in San Mateo County, California

The register lists 1,126 facilities in San Mateo, California. The Bureau of Labor Statistics counted 635 establishments in San Mateo in 2025. Chemical Manufacturing is an industry with 267 facilities listed in the register.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, cities and benchmark

Biggest cities

Federal labor statistics counted at least 635 manufacturing establishments in San Mateo County in 2025, employing about 20,476 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 1,126.

Facilities309 FACILITIES

Listing 309 of 1,126: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityIndustryNAICSEmployeesStatus
Integrated Surface Technologies, INC.Menlo ParkMachinery Manufacturing333242— ACTIVE
Knossos Grid Technologies, INC.San MateoComputer and Electronic Product Manufacturing334220— ACTIVE
La Canada Ventures INCSan MateoChemical Manufacturing325411— ACTIVE
Lamdagen CorporationSan MateoChemical Manufacturing325413— ACTIVE
Leolabs INCMenlo ParkComputer and Electronic Product Manufacturing334511— ACTIVE
Lifescient, INC.South San FranciscoChemical Manufacturing325412— ACTIVE
Marwell Bio INCSouth San FranciscoChemical Manufacturing325414— ACTIVE
Matrix Industries INCMenlo ParkComputer and Electronic Product Manufacturing334413— ACTIVE
Metal Fusion, INC.Redwood CityFabricated Metal Product Manufacturing332710— ACTIVE
Nanotemper Technologies INC.South San FranciscoComputer and Electronic Product Manufacturing334516— ACTIVE
Narion Technologies INC.Menlo ParkTransportation Equipment Manufacturing336411— ACTIVE
Neuron Dynamics INC.Portola ValleyElectrical Equipment, Appliance & Component Manufacturing335999— ACTIVE
Neursantys, INC.Menlo ParkComputer and Electronic Product Manufacturing334510— ACTIVE
Orca Biosystems, INCMenlo ParkChemical Manufacturing325414— ACTIVE
Oryn Therapeutics, INC.Redwood CityChemical Manufacturing325412— ACTIVE
Pacrim Manufacturing, INCMenlo ParkMachinery Manufacturing333310— ACTIVE
Peninsula Battery, INC.South San FranciscoElectrical Equipment, Appliance & Component Manufacturing335910— ACTIVE
Portexa, LLCSan CarlosComputer and Electronic Product Manufacturing334111— ACTIVE
Poseidon Tech CorporationFoster CityTransportation Equipment Manufacturing336411— ACTIVE
Protein Fluidics INCRedwood CityComputer and Electronic Product Manufacturing334516— ACTIVE
Quiot Security, INCPortola VallyComputer and Electronic Product Manufacturing334118— ACTIVE
Rally Sciences, LLCDaly CityPlastics and Rubber Products Manufacturing326199— ACTIVE
Rotate 8 LLCHalf Moon BayMachinery Manufacturing333111— ACTIVE
Shaw Bakers - South San FranciscoSouth San FranciscoFood Manufacturing311612100–499 ACTIVE
Skyfront CORPRedwood CityTransportation Equipment Manufacturing336411— ACTIVE
Southern Beams Builds INC.South San FranciscoElectrical Equipment, Appliance & Component Manufacturing335312— ACTIVE
Stafl Systems, LLCSouth San FranciscoElectrical Equipment, Appliance & Component Manufacturing335910— ACTIVE
Steiger Dynamics LLCRedwood CityComputer and Electronic Product Manufacturing334111— ACTIVE
Sufficiently Advanced, INC.BelmontComputer and Electronic Product Manufacturing334111— ACTIVE
Swissto12, INC.Foster CityComputer and Electronic Product Manufacturing334220— ACTIVE
Telo Trucks INCSan CarlosTransportation Equipment Manufacturing336110— ACTIVE
Tlm International, INCBurlingameMachinery Manufacturing333413— ACTIVE
Toro Bio, INC.Redwood CityComputer and Electronic Product Manufacturing334516— ACTIVE
Trm Sensors LLCRedwood CityElectrical Equipment, Appliance & Component Manufacturing335999— ACTIVE
Valon Technology, LLCRedwood CityComputer and Electronic Product Manufacturing334515— ACTIVE
Verkada INCSan MateoComputer and Electronic Product Manufacturing334310— ACTIVE
V.n. Products, INCSan CarlosMiscellaneous Manufacturing339999— ACTIVE
Wisbiomed LLCFoster CityComputer and Electronic Product Manufacturing334516— ACTIVE
Zoom DigitalSouth San FranciscoComputer and Electronic Product Manufacturing334419— ACTIVE
Fong Brothers Printing INCBrisbanePrinting and Related Support Activities32311120–99 LIKELY ACTIVE
Nxedge San CarlosSan CarlosFabricated Metal Product Manufacturing33281320–99 LIKELY ACTIVE
West Coast SurgicalHalf Moon BayTransportation Equipment Manufacturing33639020–99 LIKELY ACTIVE
Brelyon INC.San MateoComputer and Electronic Product Manufacturing334118— LIKELY ACTIVE
Holt Tool & Machine, INC.Redwood CityFabricated Metal Product Manufacturing3327101–19 LIKELY ACTIVE
P.A. Bet, Inc.San CarlosFurniture and Related Product Manufacturing33721220–99 LIKELY ACTIVE
Skydio, INCSan MateoTransportation Equipment Manufacturing336411500+ LIKELY ACTIVE
Wyse Packaging, INC.Half Moon BayPlastics and Rubber Products Manufacturing3261121–19 LIKELY ACTIVE
Granite Rock Company Redwood CityRedwood CityNonmetallic Mineral Product Manufacturing327320— LIKELY ACTIVE
Pentair Thermal Management LLCRedwood CityPlastics and Rubber Products Manufacturing326199— LIKELY ACTIVE
Slac National Accelerator LaboratoryMenlo ParkFabricated Metal Product Manufacturing332710— LIKELY ACTIVE

Search all 57,832 California facilities