Contractor License Proof

O'Brien William & Sons

Licensed

Verified against CSLB on · View on CSLB

License details

License number
292934
Status
Active
Classifications
B · General Building
Contractor bond
$25,000
Workers' comp
Covered
License term on file
April 11, 1974 – February 28, 2027

Business

  • (650) 692 2758 (CSLB public record)
  • 1590 GRANADA DR, Burlingame, CA 94010San Mateo County

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Frequently asked questions

Is O'Brien William & Sons licensed in California?

Yes. O'Brien William & Sons holds an active California state contractor license (CSLB #292934), verified against the CSLB public record on June 17, 2026.

What is O'Brien William & Sons's CSLB license number?

O'Brien William & Sons's California contractor license number is 292934. 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 O'Brien William & Sons licensed for?

O'Brien William & Sons is classified under General Building (B) by the CSLB.

How do I verify O'Brien William & Sons's license myself?

Look up license #292934 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 #292934 on CSLB

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