Public CSLB records

Conco Pumping, C-61/D-6 Concrete-Related Services Contractor in Concord, CA

License #643402·Corporation·Concord, Contra Costa County
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Summary

Conco Pumping operating as a corporation holds an active California contractor license (CSLB #643402), valid through Apr 30, 2028. First issued in 1992, the license has been on the CSLB roster for 34 years. It carries a single CSLB classification: C-61/D-6 — Concrete-Related Services Contractor. Records show an active surety bond on file with Travelers Casualty and Surety Company of America and active workers' compensation coverage from Travelers Property Casualty Company of America. The business is based in Concord, in Contra Costa County, California.

Business Information
Address
5141 Commercial Circle
Concord, CA 94520
License Details & Classifications
License Number
643402
Issued
Apr 27, 1992
Status
CLEAR
Expires
Apr 30, 2028
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
Travelers Casualty and Surety Company of America
Bond Number
103582840
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Travelers Property Casualty Company of America
Policy Number
UB9T5887452525K
Effective
Dec 31, 2025
Expires
Dec 31, 2026
Verified

This contractor is verified, with no adverse conditions in the current CSLB record.

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 Conco Pumping licensed in California?

Yes. Conco Pumping holds California Contractors State License Board license number 643402, which is active and in good standing. The license was first issued on April 27, 1992. It is valid through April 30, 2028.

What does Conco Pumping specialize in?

Conco Pumping is licensed for one CSLB classification: C-61/D-6 Concrete-Related Services Contractor.

Where is Conco Pumping headquartered?

Conco Pumping is headquartered at 5141 Commercial Circle, Concord, CA 94520, in Contra Costa County, California.

Does Conco Pumping have an active surety bond on file with CSLB?

Yes. Conco Pumping has an active California contractor surety bond filed with Travelers Casualty and Surety Company of America.

Does Conco Pumping carry workers' compensation coverage?

Yes. Conco Pumping carries active workers' compensation coverage through Travelers Property Casualty Company of America.

How do I verify Conco Pumping's contractor license?

You can verify Conco Pumping's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=643402.

Activity Timeline
  1. License issuedApr 27, 1992
  2. Bond activeJan 1, 2023
  3. WC coverage startsDec 31, 2025
  4. WC expiresDec 31, 2026
  5. License expiresApr 30, 2028
Other contractors in Contra Costa County
California lien & payment resources

Working a California job with Conco Pumping, 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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