Contractor License Proof

Neumann Construction Co

Licensed

Verified against CSLB on · View on CSLB

License details

License number
300599
Status
Active
Classifications
B · General Building
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
December 2, 1974 – May 31, 2027

Business

  • (925) 989 3143 (CSLB public record)
  • 316 MONTECILLO DRIVE, Walnut Creek, CA 94595Contra Costa County

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Frequently asked questions

Is Neumann Construction Co licensed in California?

Yes. Neumann Construction Co holds an active California state contractor license (CSLB #300599), verified against the CSLB public record on June 17, 2026.

What is Neumann Construction Co's CSLB license number?

Neumann Construction Co's California contractor license number is 300599. 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 Neumann Construction Co licensed for?

Neumann Construction Co is classified under General Building (B) by the CSLB.

How do I verify Neumann Construction Co's license myself?

Look up license #300599 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 #300599 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.