M B Concrete, B General Building Contractor in Los Osos, CA
M B Concrete operating as a sole owner holds an active California contractor license (CSLB #938811), valid through Oct 31, 2026. First issued in 2009, the license has been on the CSLB roster for 17 years. It carries 2 CSLB classifications: B General Building Contractor and C-8 Concrete Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and a previously-filed workers' compensation policy with Clear Spring Property and Casualty Company that is no longer active. The business is based in Los Osos, in San Luis Obispo County, California.
- License Number
- 938811
- Issued
- Oct 14, 2009
- Status
- CLEAR
- Expires
- Oct 31, 2026
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800233856
- Effective
- Dec 12, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Clear Spring Property and Casualty Company
- Policy Number
- CWC02189502
- Effective
- Jun 23, 2025
- Expires
- Jun 23, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is M B Concrete licensed in California?
Yes. M B Concrete holds California Contractors State License Board license number 938811, which is active and in good standing. The license was first issued on October 14, 2009. It is valid through October 31, 2026.
What does M B Concrete specialize in?
M B Concrete is licensed for 2 CSLB classifications: B General Building Contractor and C-8 Concrete Contractor.
Where is M B Concrete headquartered?
M B Concrete is headquartered at 1561 18th St, Los Osos, CA 93402, in San Luis Obispo County, California.
Does M B Concrete have an active surety bond on file with CSLB?
Yes. M B Concrete has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does M B Concrete carry workers' compensation coverage?
M B Concrete has a previously-filed workers' compensation policy with Clear Spring Property and Casualty Company that is no longer active.
How do I verify M B Concrete's contractor license?
You can verify M B Concrete's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=938811.
- License issuedOct 14, 2009
- WC coverage startsJun 23, 2025
- Bond activeDec 12, 2025
- WC expiredJun 23, 2026
- License expiresOct 31, 2026
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