Contractor License Proof

Cornerstone Earth Group Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
905816
Status
Active
Classifications
A · General EngineeringHAZ · Hazardous Substance Removal Certification
Contractor bond
$25,000
Workers' comp
Covered
License term on file
October 30, 2007 – October 31, 2027

Business

  • (408) 245 4600 (CSLB public record)
  • 1259 OAKMEAD PARKWAY, Sunnyvale, CA 94085Santa Clara County

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Frequently asked questions

Is Cornerstone Earth Group Inc licensed in California?

Yes. Cornerstone Earth Group Inc holds an active California state contractor license (CSLB #905816), verified against the CSLB public record on June 17, 2026.

What is Cornerstone Earth Group Inc's CSLB license number?

Cornerstone Earth Group Inc's California contractor license number is 905816. 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 Cornerstone Earth Group Inc licensed for?

Cornerstone Earth Group Inc is classified under General Engineering (A) and Hazardous Substance Removal Certification (HAZ) by the CSLB.

How do I verify Cornerstone Earth Group Inc's license myself?

Look up license #905816 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 #905816 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.