Public CSLB records

Kobuksan Construction, B General Building Contractor in San Francisco, CA

License #839903·Sole Owner·San Francisco, San Francisco County
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Summary

Kobuksan Construction operating as a sole owner holds California contractor license #839903, which is currently expired (lapsed Jun 30, 2026) and not valid to contract until it is renewed. First issued in 2004, the license has been on the CSLB roster for 22 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Nationwide Mutual Insurance Company and a previously-filed workers' compensation policy with American Casualty Company of Reading PA that is no longer active. The business is based in San Francisco, in San Francisco County, California.

Business Information
Address
3412 Geary Blvd
San Francisco, CA 94118
License Details & Classifications
License Number
839903
Issued
Jun 3, 2004
Status
CLEAR
Expires
Jun 30, 2026
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Nationwide Mutual Insurance Company
Bond Number
7901204104
Effective
Feb 28, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
American Casualty Company of Reading PA
Policy Number
WC7039356647
Effective
Jul 15, 2025
Expires
Jul 15, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • License expired
  • No active workers' comp on file
License StatusInactive / Expired
Contractor BondOn file
Workers' CompensationInactive

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

Frequently asked questions
Is Kobuksan Construction licensed in California?

Kobuksan Construction previously held California Contractors State License Board license number 839903, but the license expired on June 30, 2026 and is not currently valid. It was first issued on June 3, 2004.

What does Kobuksan Construction specialize in?

Kobuksan Construction is licensed for one CSLB classification: B General Building Contractor.

Where is Kobuksan Construction headquartered?

Kobuksan Construction is headquartered at 3412 Geary Blvd, San Francisco, CA 94118, in San Francisco County, California.

Does Kobuksan Construction have an active surety bond on file with CSLB?

Yes. Kobuksan Construction has an active California contractor surety bond filed with Nationwide Mutual Insurance Company.

Does Kobuksan Construction carry workers' compensation coverage?

Kobuksan Construction has a previously-filed workers' compensation policy with American Casualty Company of Reading PA that is no longer active.

How do I verify Kobuksan Construction's contractor license?

You can verify Kobuksan Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=839903.

Activity Timeline
  1. License issuedJun 3, 2004
  2. Bond activeFeb 28, 2025
  3. WC coverage startsJul 15, 2025
  4. License expiredJun 30, 2026
  5. WC expiredJul 15, 2026
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California lien & payment resources

Working a California job with Kobuksan Construction, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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