Contractor License Proof

Marine & Industrial Services Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
534970
Status
Active
Classifications
C-36 · PlumbingC-4 · Boiler, Hot-Water Heating and Steam Fitting
Contractor bond
$25,000
Workers' comp
Covered
License term on file
July 14, 1988 – January 31, 2027

Business

  • (925) 757 8791 (CSLB public record)
  • P O BOX 2236, Antioch, CA 94531Contra Costa County

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Frequently asked questions

Is Marine & Industrial Services Inc licensed in California?

Yes. Marine & Industrial Services Inc holds an active California state contractor license (CSLB #534970), verified against the CSLB public record on June 17, 2026.

What is Marine & Industrial Services Inc's CSLB license number?

Marine & Industrial Services Inc's California contractor license number is 534970. 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 Marine & Industrial Services Inc licensed for?

Marine & Industrial Services Inc is classified under Plumbing (C-36) and Boiler, Hot-Water Heating and Steam Fitting (C-4) by the CSLB.

How do I verify Marine & Industrial Services Inc's license myself?

Look up license #534970 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 #534970 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.