Contractor License Proof

Thomsen and Son Inc

Licensed

Verified against CSLB on · View on CSLB

License details

License number
525938
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 2, 1988 – April 30, 2028

Business

  • (760) 519 1633 (CSLB public record)
  • P O BOX 3236, Ramona, CA 92065San Diego County

Are you Thomsen and Son Inc? Claim this listing to manage it.

Claim this listing

Request a free quote

Tell us about your project and we'll connect you with licensed, verified California contractors.

By submitting, you agree we may share your request with relevant licensed contractors to help with your project. See our Privacy Policy.

Something wrong on this page? Report incorrect information.

Other General Engineering contractors in Ramona

Success Engineering

A · Ramona, CA

Licensed

Verified August 4, 2026 · Bonded

Caleb Underground Construction Inc

A · Ramona, CA

Licensed

Verified August 4, 2026 · Bonded

Nick & Rachel Aldous Inc

A · Ramona, CA

Licensed

Verified August 4, 2026 · Bonded

Ben's Dirt Designz Grading Co

A · Ramona, CA

Licensed

Verified August 4, 2026 · Bonded

Brucon Construction Inc

A · Ramona, CA

Licensed

Verified August 4, 2026 · Bonded

Ley Concrete

A · Ramona, CA

Licensed

Verified August 4, 2026 · Bonded

Browse all General Engineering contractors in Ramona

What to check next

How to verify a California contractor licenseRed flags when hiring a contractorLicensed vs. bonded vs. insured — what's the difference?Risks of hiring an unlicensed contractor

Frequently asked questions

Is Thomsen and Son Inc licensed in California?

Yes. Thomsen and Son Inc holds an active California state contractor license (CSLB #525938), verified against the CSLB public record on August 4, 2026.

What is Thomsen and Son Inc's CSLB license number?

Thomsen and Son Inc's California contractor license number is 525938. 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 Thomsen and Son Inc licensed for?

Thomsen and Son Inc is classified under General Engineering (A) and General Building (B) by the CSLB.

How do I verify Thomsen and Son Inc's license myself?

Look up license #525938 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 August 4, 2026.

Verify it yourself: How to verify a California contractor license · Look up #525938 on CSLB

Checking more than one contractor? Verify another license.Verify a license

See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.