Contractor License Proof

Terra Firma Geotechnical

Licensed

Verified against CSLB on · View on CSLB

License details

License number
639633
Status
Active
Classifications
A · General EngineeringB · General Building
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
March 14, 1992 – March 31, 2028

Business

  • (510) 301 2582 (CSLB public record)
  • 477 MCCORMICK ST, San Leandro, CA 94577Alameda County

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Frequently asked questions

Is Terra Firma Geotechnical licensed in California?

Yes. Terra Firma Geotechnical holds an active California state contractor license (CSLB #639633), verified against the CSLB public record on June 17, 2026.

What is Terra Firma Geotechnical's CSLB license number?

Terra Firma Geotechnical's California contractor license number is 639633. 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 Terra Firma Geotechnical licensed for?

Terra Firma Geotechnical is classified under General Engineering (A) and General Building (B) by the CSLB.

How do I verify Terra Firma Geotechnical's license myself?

Look up license #639633 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 #639633 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.