Public CSLB records

Barron Wm A CO, C-61/D-21 Machinery and Pumps Contractor in Dublin, CA

License #1018751·Corporation·Dublin, Alameda County
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Summary

Barron Wm A CO operating as a corporation holds an active California contractor license (CSLB #1018751), valid through Sep 30, 2026. First issued in 2016, the license has been on the CSLB roster for 10 years. It carries a single CSLB classification: C-61/D-21 — Machinery and Pumps Contractor. Records show an active surety bond on file with Western Surety Company and a previously-filed workers' compensation policy with Hartford Casualty Insurance Company that is no longer active. The business is based in Dublin, in Alameda County, California.

Business Information
Address
6690 Amador Plaza Rd #220
Dublin, CA 94568
License Details & Classifications
License Number
1018751
Issued
Sep 27, 2016
Status
CLEAR
Expires
Sep 30, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Western Surety Company
Bond Number
71819381
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Hartford Casualty Insurance Company
Policy Number
57WECEN5723
Effective
Aug 9, 2025
Expires
Aug 9, 2026
Alert

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

  • No active workers' comp on file
License StatusActive
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 Barron Wm A CO licensed in California?

Yes. Barron Wm A CO holds California Contractors State License Board license number 1018751, which is active and in good standing. The license was first issued on September 27, 2016. It is valid through September 30, 2026.

What does Barron Wm A CO specialize in?

Barron Wm A CO is licensed for one CSLB classification: C-61/D-21 Machinery and Pumps Contractor.

Where is Barron Wm A CO headquartered?

Barron Wm A CO is headquartered at 6690 Amador Plaza Rd #220, Dublin, CA 94568, in Alameda County, California.

Does Barron Wm A CO have an active surety bond on file with CSLB?

Yes. Barron Wm A CO has an active California contractor surety bond filed with Western Surety Company.

Does Barron Wm A CO carry workers' compensation coverage?

Barron Wm A CO has a previously-filed workers' compensation policy with Hartford Casualty Insurance Company that is no longer active.

How do I verify Barron Wm A CO's contractor license?

You can verify Barron Wm A CO's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1018751.

Activity Timeline
  1. License issuedSep 27, 2016
  2. Bond activeJan 1, 2023
  3. WC coverage startsAug 9, 2025
  4. WC expiredAug 9, 2026
  5. License expiresSep 30, 2026
Other contractors in Alameda County
California lien & payment resources

Working a California job with Barron Wm A CO, 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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