Public CSLB records

Niesner Frank, B General Building Contractor in Calabasas, CA

License #227508·Sole Owner·Calabasas, Los Angeles County
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Summary

Niesner Frank operating as a sole owner holds an active California contractor license (CSLB #227508), valid through Mar 31, 2028. First issued in 1964, the license has been on the CSLB roster for 62 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Calabasas, in Los Angeles County, California.

Business Information
Address
4929 Las Virgenes Rd #c
Calabasas, CA 91302
License Details & Classifications
License Number
227508
Issued
Aug 5, 1964
Status
CLEAR
Expires
Mar 31, 2028
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Atlantic Specialty Insurance Company
Bond Number
800210515
Effective
Sep 22, 2025
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
Mar 16, 2026
Expires
Review

This contractor warrants a closer look before contracting:

  • Workers' comp listed as exempt
License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Niesner Frank licensed in California?

Yes. Niesner Frank holds California Contractors State License Board license number 227508, which is active and in good standing. The license was first issued on August 5, 1964. It is valid through March 31, 2028.

What does Niesner Frank specialize in?

Niesner Frank is licensed for one CSLB classification: B General Building Contractor.

Where is Niesner Frank headquartered?

Niesner Frank is headquartered at 4929 Las Virgenes Rd #c, Calabasas, CA 91302, in Los Angeles County, California.

Does Niesner Frank have an active surety bond on file with CSLB?

Yes. Niesner Frank has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.

Does Niesner Frank carry workers' compensation coverage?

Niesner Frank reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Niesner Frank's contractor license?

You can verify Niesner Frank's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=227508.

Activity Timeline
  1. License issuedAug 5, 1964
  2. Bond activeSep 22, 2025
  3. WC coverage startsMar 16, 2026
  4. License expiresMar 31, 2028
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