Contractor License Proof

Gannon Construction Company

Licensed

Verified against CSLB on · View on CSLB

License details

License number
544989
Status
Active
Classifications
A · General EngineeringB · General Building
Contractor bond
$25,000
Workers' comp
Covered
License term on file
October 21, 1988 – September 30, 2027

Business

  • (415) 482 1675 (CSLB public record)
  • 580 IRWIN STREET200, San Rafael, CA 94901Marin County

Are you Gannon Construction Company? Claim this listing to manage it.

Claim this listing

Request a free quote

Tell us about your project and we'll connect you with licensed, verified California contractors.

By submitting, you agree we may share your request with relevant licensed contractors to help with your project. See our Privacy Policy.

Other General Engineering contractors in San Rafael

CLM Builders Inc

A · San Rafael, CA

Licensed

Verified June 17, 2026 · Bonded

Imran A Y Construction Inc

A · San Rafael, CA

Licensed

Verified June 17, 2026 · Bonded

Merz Bros Construction Inc

A · San Rafael, CA

Licensed

Verified June 17, 2026 · Bonded

Victor's General Construction

A · San Rafael, CA

Licensed

Verified June 17, 2026 · Bonded

Westward Builders LLC

A · San Rafael, CA

Licensed

Verified June 17, 2026 · Bonded

Rodas Brothers Engineering Construction

A · San Rafael, CA

Licensed

Verified June 17, 2026 · Bonded

Browse all General Engineering contractors in San Rafael

What to check next

How to verify a California contractor licenseRed flags when hiring a contractorLicensed vs. bonded vs. insured — what's the difference?Risks of hiring an unlicensed contractor

Frequently asked questions

Is Gannon Construction Company licensed in California?

Yes. Gannon Construction Company holds an active California state contractor license (CSLB #544989), verified against the CSLB public record on June 17, 2026.

What is Gannon Construction Company's CSLB license number?

Gannon Construction Company's California contractor license number is 544989. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.

What kind of work is Gannon Construction Company licensed for?

Gannon Construction Company is classified under General Engineering (A) and General Building (B) by the CSLB.

How do I verify Gannon Construction Company's license myself?

Look up license #544989 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of June 17, 2026.

Verify it yourself: How to verify a California contractor license · Look up #544989 on CSLB

Checking more than one contractor? Verify another license.Verify a license

See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.