Mischa Steinbruck, B General Building Contractor in Graton, CA
Mischa Steinbruck operating as a sole owner holds an active California contractor license (CSLB #662889), valid through Jan 31, 2028. First issued in 1993, the license has been on the CSLB roster for 33 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Graton, in Sonoma County, California.
- License Number
- 662889
- Issued
- Jan 13, 1993
- Status
- CLEAR
- Expires
- Jan 31, 2028
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67693150
- Effective
- Dec 13, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 26, 2026
- 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 Mischa Steinbruck licensed in California?
Yes. Mischa Steinbruck holds California Contractors State License Board license number 662889, which is active and in good standing. The license was first issued on January 13, 1993. It is valid through January 31, 2028.
What does Mischa Steinbruck specialize in?
Mischa Steinbruck is licensed for one CSLB classification: B General Building Contractor.
Where is Mischa Steinbruck headquartered?
Mischa Steinbruck is headquartered at 2607 Brush Street, Graton, CA 95444, in Sonoma County, California.
Does Mischa Steinbruck have an active surety bond on file with CSLB?
Yes. Mischa Steinbruck has an active California contractor surety bond filed with Western Surety Company.
Does Mischa Steinbruck carry workers' compensation coverage?
Mischa Steinbruck reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mischa Steinbruck's contractor license?
You can verify Mischa Steinbruck's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=662889.
- License issuedJan 13, 1993
- Bond activeDec 13, 2025
- WC coverage startsJan 26, 2026
- License expiresJan 31, 2028
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