Thomsen and Son INC, A General Engineering Contractor in Ramona, CA
Thomsen and Son INC operating as a corporation holds California contractor license #525938, which is currently expired (lapsed Apr 30, 2026) and not valid to contract until it is renewed. First issued in 1988, the license has been on the CSLB roster for 38 years. It carries 2 CSLB classifications: A General Engineering Contractor and B General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Ramona, in San Diego County, California.
- License Number
- 525938
- Issued
- Mar 2, 1988
- Status
- CLEAR
- Expires
- Apr 30, 2026
- Entity
- Corporation
- Surety
- Western Surety Company
- Bond Number
- 67341730
- Effective
- May 27, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Apr 15, 2024
- Expires
- —
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Thomsen and Son INC licensed in California?
Thomsen and Son INC previously held California Contractors State License Board license number 525938, but the license expired on April 30, 2026 and is not currently valid. It was first issued on March 2, 1988.
What does Thomsen and Son INC specialize in?
Thomsen and Son INC is licensed for 2 CSLB classifications: A General Engineering Contractor and B General Building Contractor.
Where is Thomsen and Son INC headquartered?
Thomsen and Son INC is headquartered at P O Box 3236, Ramona, CA 92065, in San Diego County, California.
Does Thomsen and Son INC have an active surety bond on file with CSLB?
Yes. Thomsen and Son INC has an active California contractor surety bond filed with Western Surety Company.
Does Thomsen and Son INC carry workers' compensation coverage?
Thomsen and Son INC reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Thomsen and Son INC's contractor license?
You can verify Thomsen and Son INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=525938.
- License issuedMar 2, 1988
- WC coverage startsApr 15, 2024
- Bond activeMay 27, 2025
- License expiredApr 30, 2026
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