Contractor License Proof

Gannon Construction Company

Licensed

Verified against CSLB on · View on CSLB

License details

License number
544989
Status
Active
Contractor bond
$25,000
Workers' comp
Covered
License term on file
October 21, 1988September 30, 2027

Business

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

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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

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