Contractor License Proof

John A Marzo JR Construction

Licensed

Verified against CSLB on · View on CSLB

License details

License number
591616
Status
Active
Classifications
B · General BuildingC-10 · Electrical
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
April 2, 1990 – April 30, 2028

Business

  • (925) 674 1339 (CSLB public record)
  • 442 DERBY COURT, Pleasant Hill, CA 94523Contra Costa County

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Frequently asked questions

Is John A Marzo JR Construction licensed in California?

Yes. John A Marzo JR Construction holds an active California state contractor license (CSLB #591616), verified against the CSLB public record on June 17, 2026.

What is John A Marzo JR Construction's CSLB license number?

John A Marzo JR Construction's California contractor license number is 591616. 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 John A Marzo JR Construction licensed for?

John A Marzo JR Construction is classified under General Building (B) and Electrical (C-10) by the CSLB.

How do I verify John A Marzo JR Construction's license myself?

Look up license #591616 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 #591616 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.