How to Look Up a Professional Engineer License in California
In California, professional engineers are licensed and disciplined by the California Board for Professional Engineers, Land Surveyors, and Geologists. Its lookup is the only authoritative record — free, public, and faster than the sales call you are about to sit through.
The Official Lookup
Open the official California Board for Professional Engineers, Land Surveyors, and Geologists lookup/board site (official board site — link verified November 7, 2026).
Regulator: California Board for Professional Engineers, Land Surveyors, and Geologists. If the board's site offers both an individual and a firm search, run both.
The Five-Minute Verification
- Get the name and license number. Ask the licensee for their full legal name and PE license number. A licensed engineer gives both without hesitation — they are public record by design, and they are printed inside the seal itself.
- Open the official board lookup. Use the board's own tool linked below — never a screenshot the firm sends you, and never a third-party directory's copy of the record.
- Check status and discipline. Status must read active (or the state's equivalent). The licensed discipline must match the work being sealed: an MEP set needs an MEP-discipline license, a structural set a structural one — a seal is only as valid as the match behind the license.
- Check the expiration date and discipline actions. An expired license or a disciplinary history does not automatically disqualify — but it must be disclosed and explained, not discovered by you later.
- Check the firm, too. Several states also register engineering firms or require a certificate of authorization. If the board offers a firm lookup, run the company's name through it before you sign.
Red Flags Worth a Pause
- A seal from an engineer licensed in a different state than your project
- A license number the firm will not put in writing
- An expired or inactive record explained with "the renewal is in the mail"
- Discipline mismatch — the license is real, but it is not for the work being sealed
- A firm that discourages you from checking. Checking is the norm; professionals expect it
Running a sealed job in California?
See what a valid seal looks like for Los Angeles — the six elements localized, and the licensure basis behind the job — on the Los Angeles seal page — then verify the licensee right here before you send anything.
Who Publishes This Directory
Published by Apex Grid Engineering PLLC. The firms evaluated and listed on this site today are the publisher's own family of brands — this is an affiliated directory, not a neutral referee. The methodology below is the standard any engineering firm can be measured against, and it is the standard we hold our own firms to in public. Presentation order on this site is the publisher's choice and an experiment in what helps buyers decide — it is not an objective quality verdict, and no firm pays for placement. Coverage claims are limited to licensure the operator's bench actually holds, stated per state. No reviews, ratings, or project claims are published for any firm unless they can be documented — this site explains what an engineer seal is and how to read one; it publishes the publisher's methodology assessments and does not publish customer reviews, and you will find none invented here.
Operated by Apex Grid Engineering PLLC. Founder & CEO: Jeremy “Chico” Mills — serial entrepreneur and USAF veteran. Jeremy is the founder and chief executive; he is not a licensed professional engineer, and no page on this site implies otherwise. The engineering behind the listed firms is performed and sealed by their licensed PE benches.