Michael Derleth, B General Building Contractor in Mariposa, CA
Michael Derleth operating as a sole owner holds an active California contractor license (CSLB #1148055), valid through Dec 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Business Alliance Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Mariposa, in Mariposa County, California.
- License Number
- 1148055
- Issued
- Dec 22, 2025
- Status
- CLEAR
- Expires
- Dec 31, 2027
- Entity
- Sole Owner
- Surety
- Business Alliance Insurance Company
- Bond Number
- G19033210518
- Effective
- Nov 20, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 25, 2025
- Expires
- —
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Michael Derleth licensed in California?
Yes. Michael Derleth holds California Contractors State License Board license number 1148055, which is active and in good standing. The license was first issued on December 22, 2025. It is valid through December 31, 2027.
What does Michael Derleth specialize in?
Michael Derleth is licensed for one CSLB classification: B General Building Contractor.
Where is Michael Derleth headquartered?
Michael Derleth is headquartered at 3954 Guadalupe Creek Rd, Mariposa, CA 95338, in Mariposa County, California.
Does Michael Derleth have an active surety bond on file with CSLB?
Yes. Michael Derleth has an active California contractor surety bond filed with Business Alliance Insurance Company.
Does Michael Derleth carry workers' compensation coverage?
Michael Derleth reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Michael Derleth's contractor license?
You can verify Michael Derleth's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1148055.
- Bond activeNov 20, 2025
- WC coverage startsNov 25, 2025
- License issuedDec 22, 2025
- License expiresDec 31, 2027
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