Thomas Nathan, B General Building Contractor in Santa Rosa, CA
Thomas Nathan operating as a sole owner holds California contractor license #606378, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 1990, the license has been on the CSLB roster for 36 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active. The business is based in Santa Rosa, in Sonoma County, California.
- License Number
- 606378
- Issued
- Nov 13, 1990
- Status
- CLEAR
- Expires
- Jun 30, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100496522
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- State Compensation Insurance Fund
- Policy Number
- 9342300
- Effective
- Jul 11, 2023
- Expires
- Jul 11, 2026
This contractor has a compliance issue in its public CSLB record:
- License expired
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Thomas Nathan licensed in California?
Thomas Nathan previously held California Contractors State License Board license number 606378, but the license expired on June 30, 2026 and is not currently valid. It was first issued on November 13, 1990.
What does Thomas Nathan specialize in?
Thomas Nathan is licensed for one CSLB classification: B General Building Contractor.
Where is Thomas Nathan headquartered?
Thomas Nathan is headquartered at 465 Stony Point Road 172, Santa Rosa, CA 95401, in Sonoma County, California.
Does Thomas Nathan have an active surety bond on file with CSLB?
Yes. Thomas Nathan has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Thomas Nathan carry workers' compensation coverage?
Thomas Nathan has a previously-filed workers' compensation policy with State Compensation Insurance Fund that is no longer active.
How do I verify Thomas Nathan's contractor license?
You can verify Thomas Nathan's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=606378.
- License issuedNov 13, 1990
- Bond activeJan 1, 2023
- WC coverage startsJul 11, 2023
- License expiredJun 30, 2026
- WC expiredJul 11, 2026
- Midstate Construction Corporation#89455Petaluma·B General Building Contractor
- Napa Sonoma Builders#117102Sonoma·B General Building Contractor
- Railla Joseph J#201956Sebastopol·B General Building Contractor
- Codding Construction CO#203301Santa Rosa·B General Building Contractor
- Morton Construction#251553Healdsburg·B General Building Contractor
- Decker William & Company INC#254209Penngrove·B General Building Contractor
- Kozy Homes#262090Petaluma·B General Building Contractor
- Western Built#232904Santa Rosa·B General Building Contractor
Working a California job with Thomas Nathan, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Thomas Nathan? Claim or correct this profile