Public CSLB records

Stomper Company INC, A General Engineering Contractor in Hayward, CA

License #313376·Corporation·Hayward, Alameda County
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Summary

Stomper Company INC operating as a corporation holds California contractor license #313376, which is currently expired (lapsed Aug 31, 2026) and not valid to contract until it is renewed. First issued in 1975, the license has been on the CSLB roster for 51 years. It carries 3 CSLB classifications: A General Engineering Contractor, C-21 Building Moving / Demolition Contractor, and C-22 Asbestos Abatement Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Starr Indemnity & Liability Company. The business is based in Hayward, in Alameda County, California.

Business Information
Address
3135 Diablo Ave
Hayward, CA 94545
License Details & Classifications
License Number
313376
Issued
Dec 4, 1975
Status
CLEAR
Expires
Aug 31, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
SC6069651
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Starr Indemnity & Liability Company
Policy Number
1001243033
Effective
Nov 1, 2025
Expires
Nov 1, 2026
Alert

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

  • License expired
License StatusInactive / Expired
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 Stomper Company INC licensed in California?

Stomper Company INC previously held California Contractors State License Board license number 313376, but the license expired on August 31, 2026 and is not currently valid. It was first issued on December 4, 1975.

What does Stomper Company INC specialize in?

Stomper Company INC is licensed for 3 CSLB classifications: A General Engineering Contractor, C-21 Building Moving / Demolition Contractor, and C-22 Asbestos Abatement Contractor.

Where is Stomper Company INC headquartered?

Stomper Company INC is headquartered at 3135 Diablo Ave, Hayward, CA 94545, in Alameda County, California.

Does Stomper Company INC have an active surety bond on file with CSLB?

Yes. Stomper Company INC has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Stomper Company INC carry workers' compensation coverage?

Yes. Stomper Company INC carries active workers' compensation coverage through Starr Indemnity & Liability Company.

How do I verify Stomper Company INC's contractor license?

You can verify Stomper Company INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=313376.

Activity Timeline
  1. License issuedDec 4, 1975
  2. Bond activeJan 1, 2023
  3. WC coverage startsNov 1, 2025
  4. License expiredAug 31, 2026
  5. WC expiresNov 1, 2026
Other contractors in Alameda County
California lien & payment resources

Working a California job with Stomper Company INC, 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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