Koch Const Company, B General Building Contractor in Santa Rosa, CA
Koch Const Company operating as a sole owner holds an active California contractor license (CSLB #329495), valid through Nov 30, 2027. First issued in 1976, the license has been on the CSLB roster for 50 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 Santa Rosa, in Sonoma County, California.
- License Number
- 329495
- Issued
- Dec 28, 1976
- Status
- CLEAR
- Expires
- Nov 30, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 24152051
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 13, 2025
- 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 Koch Const Company licensed in California?
Yes. Koch Const Company holds California Contractors State License Board license number 329495, which is active and in good standing. The license was first issued on December 28, 1976. It is valid through November 30, 2027.
What does Koch Const Company specialize in?
Koch Const Company is licensed for one CSLB classification: B General Building Contractor.
Where is Koch Const Company headquartered?
Koch Const Company is headquartered at 1550 Airport Blvd #104, Santa Rosa, CA 95403, in Sonoma County, California.
Does Koch Const Company have an active surety bond on file with CSLB?
Yes. Koch Const Company has an active California contractor surety bond filed with Western Surety Company.
Does Koch Const Company carry workers' compensation coverage?
Koch Const Company reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Koch Const Company's contractor license?
You can verify Koch Const Company's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=329495.
- License issuedDec 28, 1976
- Bond activeJan 1, 2023
- WC coverage startsNov 13, 2025
- License expiresNov 30, 2027
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