Marquardt William E
Verified against CSLB on · View on CSLB
License details
- License number
- 396401
- Status
- Active
- Classifications
- A · General EngineeringB · General BuildingC-10 · Electrical
- Contractor bond
- $25,000
- Workers' comp
- Exempt
- License term on file
- December 8, 1980 – December 31, 2026
Business
- (415) 586 6987 (CSLB public record)
- 259 JUDSON AVENUE, San Francisco, CA 94112San Francisco County
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Frequently asked questions
Is Marquardt William E licensed in California?
Yes. Marquardt William E holds an active California state contractor license (CSLB #396401), verified against the CSLB public record on June 17, 2026.
What is Marquardt William E's CSLB license number?
Marquardt William E's California contractor license number is 396401. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=396401
What kind of work is Marquardt William E licensed for?
Marquardt William E is classified under General Engineering (A) by the CSLB.
How do I verify Marquardt William E's license myself?
Look up license #396401 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=396401. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.