Public CSLB records

Aei Consultants, A General Engineering Contractor in Walnut Creek, CA

License #654919·Corporation·Walnut Creek, Contra Costa County
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Summary

Aei Consultants operating as a corporation holds California contractor license #654919, which is currently expired (lapsed Sep 30, 2026) and not valid to contract until it is renewed. First issued in 1992, the license has been on the CSLB roster for 34 years. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and a previously-filed workers' compensation policy with American Casualty Company of Reading PA that is no longer active.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 Walnut Creek, in Contra Costa County, California.

Business Information
Address
2500 Camino Diablo Ste 100
Walnut Creek, CA 94597
License Details & Classifications
License Number
654919
Issued
Sep 24, 1992
Status
CLEAR
Expires
Sep 30, 2026
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
184792
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
American Casualty Company of Reading PA
Policy Number
8033776747
Effective
Sep 14, 2025
Expires
Sep 14, 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 Aei Consultants licensed in California?

Aei Consultants previously held California Contractors State License Board license number 654919, but the license expired on September 30, 2026 and is not currently valid. It was first issued on September 24, 1992.

What does Aei Consultants specialize in?

Aei Consultants is licensed for one CSLB classification: A General Engineering Contractor.

Where is Aei Consultants headquartered?

Aei Consultants is headquartered at 2500 Camino Diablo Ste 100, Walnut Creek, CA 94597, in Contra Costa County, California.

Does Aei Consultants have an active surety bond on file with CSLB?

Yes. Aei Consultants has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Aei Consultants carry workers' compensation coverage?

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Consultants has a previously-filed workers' compensation policy with American Casualty Company of Reading PA that is no longer active.

How do I verify Aei Consultants's contractor license?

You can verify Aei Consultants's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=654919.

Activity Timeline
  1. License issuedSep 24, 1992
  2. Bond activeJan 1, 2023
  3. WC coverage startsSep 14, 2025
  4. WC expiredSep 14, 2026
  5. License expiredSep 30, 2026
Other contractors in Contra Costa County
California lien & payment resources

Working a California job with Aei Consultants, 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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