Marquardt William E, A General Engineering Contractor in San Francisco, CA
Marquardt William E operating as a sole owner holds an active California contractor license (CSLB #396401), valid through Dec 31, 2026. First issued in 1980, the license has been on the CSLB roster for 46 years. It carries 3 CSLB classifications: A General Engineering Contractor, B General Building Contractor, and C-10 Electrical Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in San Francisco, in San Francisco County, California.
- License Number
- 396401
- Issued
- Dec 8, 1980
- Status
- CLEAR
- Expires
- Dec 31, 2026
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800212577
- Effective
- Jan 1, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 8, 2024
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Marquardt William E licensed in California?
Yes. Marquardt William E holds California Contractors State License Board license number 396401, which is active and in good standing. The license was first issued on December 8, 1980. It is valid through December 31, 2026.
What does Marquardt William E specialize in?
Marquardt William E is licensed for 3 CSLB classifications: A General Engineering Contractor, B General Building Contractor, and C-10 Electrical Contractor.
Where is Marquardt William E headquartered?
Marquardt William E is headquartered at 259 Judson Avenue, San Francisco, CA 94112, in San Francisco County, California.
Does Marquardt William E have an active surety bond on file with CSLB?
Yes. Marquardt William E has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Marquardt William E carry workers' compensation coverage?
Marquardt William E reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Marquardt William E's contractor license?
You can verify Marquardt William E's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=396401.
- License issuedDec 8, 1980
- WC coverage startsNov 8, 2024
- Bond activeJan 1, 2026
- License expiresDec 31, 2026
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