O'Sullivan Construction
Verified against CSLB on · View on CSLB
License details
- License number
- 589596
- Status
- Active
- Classifications
- B · General Building
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- March 6, 1990 – March 31, 2028
Business
- (650) 589 0372 (CSLB public record)
- 132 ARDEN AVE, S San Francisco, CA 94080San Mateo County
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Frequently asked questions
Is O'Sullivan Construction licensed in California?
Yes. O'Sullivan Construction holds an active California state contractor license (CSLB #589596), verified against the CSLB public record on June 17, 2026.
What is O'Sullivan Construction's CSLB license number?
O'Sullivan Construction's California contractor license number is 589596. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=589596
What kind of work is O'Sullivan Construction licensed for?
O'Sullivan Construction is classified under General Building (B) by the CSLB.
How do I verify O'Sullivan Construction's license myself?
Look up license #589596 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=589596. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.