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Welton Underground

License #1047016·Corporation·Oakland, Alameda County
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Summary

Welton Underground operating as a corporation is licensed in California under CSLB number 1047016. The license was first issued in 2018, putting the business at 8 years on the active CSLB roster. It carries a single CSLB classification: C-34 — Pipeline Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and a previously-filed workers' compensation policy with Everest Premier Insurance Company that is no longer active. The business is based in Oakland, in Alameda County, California.

Business Information
Address
1305 Franklin St 509
Oakland, CA 94612
License Details & Classifications
License Number
1047016
Issued
Nov 19, 2018
Status
CLEAR
Expires
Nov 30, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
101009271
Effective
Nov 10, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Everest Premier Insurance Company
Policy Number
7600027044251
Effective
Jun 6, 2025
Expires
Jun 2, 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 Welton Underground licensed in California?

Yes. Welton Underground holds California Contractors State License Board license number 1047016. The license was first issued on November 19, 2018. It is valid through November 30, 2026.

What does Welton Underground specialize in?

Welton Underground is licensed for one CSLB classification: C-34 Pipeline Contractor.

Where is Welton Underground headquartered?

Welton Underground is headquartered at 1305 Franklin St 509, Oakland, CA 94612, in Alameda County, California.

Does Welton Underground have an active surety bond on file with CSLB?

Yes. Welton Underground has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Welton Underground carry workers' compensation coverage?

Welton Underground has a previously-filed workers' compensation policy with Everest Premier Insurance Company that is no longer active.

How do I verify Welton Underground's contractor license?

You can verify Welton Underground's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1047016.

Activity Timeline
  1. License issuedNov 19, 2018
  2. WC coverage startsJun 6, 2025
  3. Bond activeNov 10, 2025
  4. WC expiredJun 2, 2026
  5. License expiresNov 30, 2026
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