Contractor License Proof

O Nelson & Son Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
307071
Status
Active
Classifications
A · General Engineering
Contractor bond
$25,000
Workers' comp
Covered
License term on file
July 3, 1975 – April 30, 2027

Business

  • (650) 851 3600 (CSLB public record)
  • 3345 TRIPP RD, Woodside, CA 94062San Mateo County

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Frequently asked questions

Is O Nelson & Son Inc licensed in California?

Yes. O Nelson & Son Inc holds an active California state contractor license (CSLB #307071), verified against the CSLB public record on June 17, 2026.

What is O Nelson & Son Inc's CSLB license number?

O Nelson & Son Inc's California contractor license number is 307071. 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 Nelson & Son Inc licensed for?

O Nelson & Son Inc is classified under General Engineering (A) by the CSLB.

How do I verify O Nelson & Son Inc's license myself?

Look up license #307071 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 #307071 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.