Michael L O'Brien
Verified against CSLB on · View on CSLB
License details
- License number
- 535774
- Classifications
- License term on file
- July 22, 1988 – July 31, 2028
Business
- (661) 245 3724 (CSLB public record)
- 1675 O'BRIEN DRIVE, Frazier Park, CA 93225Kern County
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Frequently asked questions
Is Michael L O'Brien licensed in California?
Yes. Michael L O'Brien holds an active California state contractor license (CSLB #535774), verified against the CSLB public record on August 4, 2026.
What is Michael L O'Brien's CSLB license number?
Michael L O'Brien's California contractor license number is 535774. 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 Michael L O'Brien licensed for?
Michael L O'Brien is classified under General Engineering (A), General Building (B), Earthwork and Paving (C-12), and Sanitation System (C-42) by the CSLB.
How do I verify Michael L O'Brien's license myself?
Look up license #535774 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 August 4, 2026.
Verify it yourself: How to verify a California contractor license · Look up #535774 on CSLB
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.