Master Builders, A General Engineering Contractor in San Francisco, CA
Master Builders operating as a corporation holds an active California contractor license (CSLB #850407), valid through Nov 30, 2026. First issued in 2004, the license has been on the CSLB roster for 22 years. It carries 2 CSLB classifications: A General Engineering Contractor and B General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and a previously-filed workers' compensation policy with Security National Insurance Company that is no longer active. The business is based in San Francisco, in San Francisco County, California.
- License Number
- 850407
- Issued
- Nov 30, 2004
- Status
- CLEAR
- Expires
- Nov 30, 2026
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100792371
- Effective
- Aug 25, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Security National Insurance Company
- Policy Number
- SWC1558457
- 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 Master Builders licensed in California?
Yes. Master Builders holds California Contractors State License Board license number 850407, which is active and in good standing. The license was first issued on November 30, 2004. It is valid through November 30, 2026.
What does Master Builders specialize in?
Master Builders is licensed for 2 CSLB classifications: A General Engineering Contractor and B General Building Contractor.
Where is Master Builders headquartered?
Master Builders is headquartered at 3 Stark Street, San Francisco, CA 94133, in San Francisco County, California.
Does Master Builders have an active surety bond on file with CSLB?
Yes. Master Builders has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Master Builders carry workers' compensation coverage?
Master Builders has a previously-filed workers' compensation policy with Security National Insurance Company that is no longer active.
How do I verify Master Builders's contractor license?
You can verify Master Builders's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=850407.
- License issuedNov 30, 2004
- Bond activeAug 25, 2023
- WC coverage startsJun 23, 2025
- WC expiredJun 23, 2026
- License expiresNov 30, 2026
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