Nilsen Construction, B General Building Contractor in Petaluma, CA
Nilsen Construction operating as a sole owner holds an active California contractor license (CSLB #441550), valid through Jun 30, 2027. First issued in 1983, the license has been on the CSLB roster for 43 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Platte River Insurance Company and active workers' compensation coverage from Omaha National Casualty Company. The business is based in Petaluma, in Sonoma County, California.
- License Number
- 441550
- Issued
- Jun 9, 1983
- Status
- CLEAR
- Expires
- Jun 30, 2027
- Entity
- Sole Owner
- Surety
- Platte River Insurance Company
- Bond Number
- CLB2707423
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Omaha National Casualty Company
- Policy Number
- ONCC1032406
- Effective
- Sep 23, 2025
- Expires
- Sep 23, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Nilsen Construction licensed in California?
Yes. Nilsen Construction holds California Contractors State License Board license number 441550, which is active and in good standing. The license was first issued on June 9, 1983. It is valid through June 30, 2027.
What does Nilsen Construction specialize in?
Nilsen Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Nilsen Construction headquartered?
Nilsen Construction is headquartered at 14 Brandy Court, Petaluma, CA 94954, in Sonoma County, California.
Does Nilsen Construction have an active surety bond on file with CSLB?
Yes. Nilsen Construction has an active California contractor surety bond filed with Platte River Insurance Company.
Does Nilsen Construction carry workers' compensation coverage?
Yes. Nilsen Construction carries active workers' compensation coverage through Omaha National Casualty Company.
How do I verify Nilsen Construction's contractor license?
You can verify Nilsen Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=441550.
- License issuedJun 9, 1983
- Bond activeJan 1, 2023
- WC coverage startsSep 23, 2025
- WC expiresSep 23, 2026
- License expiresJun 30, 2027
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