Location · California
Engineering Firms in California
Find professional engineering firms in California — Los Angeles, San Francisco Bay Area, San Diego, Sacramento. PE-licensed civil, structural, mechanical, electrical, telecom, and industrial engineering companies.
Engineering services in California
California is a practice-act state for civil, electrical, and mechanical engineering — meaning stamped drawings and permit submittals for those disciplines must be sealed by a PE licensed by the California Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG). Out-of-state stamps are not accepted.
Use this page to find PE-licensed engineering firms across California's largest markets, filtered by discipline and project type.
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FAQ
Who licenses engineers in California?
The California Board for Professional Engineers, Land Surveyors, and Geologists (BPELSG) licenses Professional Engineers. California also issues authority licenses for civil, electrical, and mechanical branches, plus title-act licenses for several other disciplines.
Is California a practice-act or title-act state?
California is a practice-act state for civil, electrical, and mechanical engineering — meaning only licensed PEs in those branches can offer those services. Other branches (e.g., industrial, chemical) are title-act, restricting use of the title but not the practice.
Do I need a California PE for stamped drawings?
Yes. Construction documents, permit submittals, and structural calculations that require a stamp must be sealed by a PE licensed in California — out-of-state stamps are not accepted for California projects.
How do I verify a California engineering firm's license?
Use the BPELSG license lookup to verify individual PE licenses, and search for the firm's organization registration. EngineerMint also surfaces verified license data on firm profile pages.
What metros have the most engineering firms in California?
Los Angeles, the San Francisco Bay Area (San Francisco, Oakland, San Jose), San Diego, Sacramento, and the Inland Empire concentrate the largest share of California engineering firms.