Knox Brothers Construction INC, B General Building Contractor in Costa Mesa, CA
Knox Brothers Construction INC operating as a corporation holds an active California contractor license (CSLB #580452), valid through Feb 28, 2027. First issued in 1989, the license has been on the CSLB roster for 37 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 active workers' compensation coverage from Omaha National Casualty Company. The business is based in Costa Mesa, in Orange County, California.
- License Number
- 580452
- Issued
- Nov 2, 1989
- Status
- CLEAR
- Expires
- Feb 28, 2027
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100703915
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Omaha National Casualty Company
- Policy Number
- ONCC1701224102
- Effective
- Oct 22, 2025
- Expires
- Oct 22, 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 Knox Brothers Construction INC licensed in California?
Yes. Knox Brothers Construction INC holds California Contractors State License Board license number 580452, which is active and in good standing. The license was first issued on November 2, 1989. It is valid through February 28, 2027.
What does Knox Brothers Construction INC specialize in?
Knox Brothers Construction INC is licensed for one CSLB classification: B General Building Contractor.
Where is Knox Brothers Construction INC headquartered?
Knox Brothers Construction INC is headquartered at Po Box 11312, Costa Mesa, CA 92627, in Orange County, California.
Does Knox Brothers Construction INC have an active surety bond on file with CSLB?
Yes. Knox Brothers Construction INC has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Knox Brothers Construction INC carry workers' compensation coverage?
Yes. Knox Brothers Construction INC carries active workers' compensation coverage through Omaha National Casualty Company.
How do I verify Knox Brothers Construction INC's contractor license?
You can verify Knox Brothers Construction INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=580452.
- License issuedNov 2, 1989
- Bond activeJan 1, 2023
- WC coverage startsOct 22, 2025
- WC expiresOct 22, 2026
- License expiresFeb 28, 2027
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