Manufacturing in Riverside-San Bernardino-Ontario, CA

Riverside-San Bernardino-Ontario, CA is home to 3654 establishments, according to the Bureau of Labor Statistics in 2024. Listed in the register are 4899 facilities across 129 cities. Fabricated Metal Product Manufacturing accounts for 774 facilities in the region.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Facilities4,899 FACILITIES

Facility	City	Industry	Employees	Status
Long Machine, INC	Temecula, CA	Fabricated Metal Product Manufacturing332710	—	● ACTIVE
Loutech LLC	Chino, CA	Fabricated Metal Product Manufacturing332710	—	● ACTIVE
Maney Aircraft, INC.	Ontario, CA	Fabricated Metal Product Manufacturing332710	—	● ACTIVE
Marine Fenders International INC	Rialto, CA	Plastics and Rubber Products Manufacturing326150	—	● ACTIVE
Martek Automation	Murrieta, CA	Machinery Manufacturing333111	—	● ACTIVE
Martinez and Turek, INC.	Rialto, CA	Fabricated Metal Product Manufacturing332710	—	● ACTIVE
Maury Microwave, INC.	Ontario, CA	Computer and Electronic Product Manufacturing334419	—	● ACTIVE
Mccrometer, INC.	Hemet, CA	Machinery Manufacturing333913	—	● ACTIVE
Mil-bar Plastics, INC.	Corona, CA	Plastics and Rubber Products Manufacturing326199	—	● ACTIVE
Mindrum Precision INC.	Rancho Cucamonga, CA	Nonmetallic Mineral Product Manufacturing327215	—	● ACTIVE
M & O Perry Industries, INC.	Corona, CA	Machinery Manufacturing333993	—	● ACTIVE
Nextmod, INC.	Riverside, CA	Wood Product Manufacturing321991	—	● ACTIVE
Nittobo America INC.	Murrieta, CA	Chemical Manufacturing325412	—	● ACTIVE
Norco Plastics, INC	Chino, CA	Plastics and Rubber Products Manufacturing326121	—	● ACTIVE
Nuphoton Technologies, INC.	Murrieta, CA	Electrical Equipment, Appliance & Component Manufacturing335999	—	● ACTIVE
Office Master INC.	Ontario, CA	Furniture and Related Product Manufacturing337214	20–99	● ACTIVE
Omanson Precision Engineering, INC	Chino, CA	Fabricated Metal Product Manufacturing332710	—	● ACTIVE
Opti-forms, INC.	Temecula, CA	Fabricated Metal Product Manufacturing332813	—	● ACTIVE
O2Opto 22	Temecula, CA	Computer and Electronic Product Manufacturing334419	—	● ACTIVE
OIOsi Industries LLC	Riverside, CA	Food Manufacturing311612	100–499	● ACTIVE
Pacific Coast Stitch LLC	Murrieta, CA	Apparel Manufacturing315250	—	● ACTIVE
Pacific Corrugated Pipe Company LLC	Fontana, CA	Plastics and Rubber Products Manufacturing326122	—	● ACTIVE
Pacmet Aerospace, LLC	Corona, CA	Machinery Manufacturing333415	—	● ACTIVE
Pac - Rancho, INC.	Rancho Cucamonga, CA	Primary Metal Manufacturing331513	—	● ACTIVE
Paramount Panels, INC.	Ontario, CA	Printing and Related Support Activities323111	—	● ACTIVE
Penwal Industries INC	Rancho Cucamonga, CA	Miscellaneous Manufacturing339999	20–99	● ACTIVE
Perimeter Solutions LP	Rancho Cucamonga, CA	Chemical Manufacturing325180	—	● ACTIVE
Plastic Reinforcements, INC	Chino, CA	Fabricated Metal Product Manufacturing332912	—	● ACTIVE
Polymer Concepts Technologies Pby, INC.	Apple Valley, CA	Chemical Manufacturing325211	—	● ACTIVE
Precision Molded Plastics INC	Upland, CA	Plastics and Rubber Products Manufacturing326199	—	● ACTIVE
Premier Gear & Machining, INC.	Corona, CA	Machinery Manufacturing333612	—	● ACTIVE
Prob-test INC	Rialto, CA	Computer and Electronic Product Manufacturing334419	—	● ACTIVE
Proformance Manufacturing, INC.	Corona, CA	Fabricated Metal Product Manufacturing332214	—	● ACTIVE
Purosil LLC	Corona, CA	Plastics and Rubber Products Manufacturing326220	—	● ACTIVE
PTPva Tepla America, LLC	Corona, CA	Machinery Manufacturing333242	—	● ACTIVE
Q1 Test, INC.	Ontario, CA	Machinery Manufacturing333999	—	● ACTIVE
Quality Foam Packaging, INC.	Lake Elsinore, CA	Plastics and Rubber Products Manufacturing326150	—	● ACTIVE
Ramko Manufacturing INC	Hemet, CA	Machinery Manufacturing333511	—	● ACTIVE
Redlands Manufacturing CO LLC	Redlands, CA	Machinery Manufacturing333413	—	● ACTIVE
Risco, INC.	Beaumont, CA	Fabricated Metal Product Manufacturing332722	—	● ACTIVE
R. Kern Engineering & Manufacturing CORP.	Chino, CA	Primary Metal Manufacturing331513	—	● ACTIVE
Rkl Technologies, INC.	Corona, CA	Fabricated Metal Product Manufacturing332710	—	● ACTIVE
RFRudolph Foods Company Beaumont	Beaumont, CA	Food Manufacturing311612	100–499	● ACTIVE
Safeway Sign Company	Adelanto, CA	Fabricated Metal Product Manufacturing332812	—	● ACTIVE
SESammons Equipment Manufacturing CORP	Corona, CA	Machinery Manufacturing333241	—	● ACTIVE
Schlosser Forge Company	Rancho Cucamonga, CA	Fabricated Metal Product Manufacturing332111	—	● ACTIVE
Shed World, LLC	Oak Hills, CA	Wood Product Manufacturing321992	20–99	● ACTIVE
Smith International INC	Rancho Cucamonga, CA	Plastics and Rubber Products Manufacturing326291	—	● ACTIVE
Specialty Coating Systems, INC.	Ontario, CA	Miscellaneous Manufacturing339999	—	● ACTIVE
Spray Enclosure Technologies, INC.	Rialto, CA	Fabricated Metal Product Manufacturing332311	—	● ACTIVE