Thacker's Engineering, A General Engineering Contractor in Ontario, CA
Thacker's Engineering operating as a corporation holds an active California contractor license (CSLB #1141853), valid through Aug 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from State Compensation Insurance Fund. The business is based in Ontario, in San Bernardino County, California.
- License Number
- 1141853
- Issued
- Aug 11, 2025
- Status
- CLEAR
- Expires
- Aug 31, 2027
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100976642
- Effective
- Jul 16, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- State Compensation Insurance Fund
- Policy Number
- 9286397
- Effective
- Jul 16, 2025
- Expires
- Oct 21, 2026
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Thacker's Engineering licensed in California?
Yes. Thacker's Engineering holds California Contractors State License Board license number 1141853, which is active and in good standing. The license was first issued on August 11, 2025. It is valid through August 31, 2027.
What does Thacker's Engineering specialize in?
Thacker's Engineering is licensed for one CSLB classification: A General Engineering Contractor.
Where is Thacker's Engineering headquartered?
Thacker's Engineering is headquartered at 1435 S Grove Ave #3, Ontario, CA 91761, in San Bernardino County, California.
Does Thacker's Engineering have an active surety bond on file with CSLB?
Yes. Thacker's Engineering has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Thacker's Engineering carry workers' compensation coverage?
Yes. Thacker's Engineering carries active workers' compensation coverage through State Compensation Insurance Fund.
How do I verify Thacker's Engineering's contractor license?
You can verify Thacker's Engineering's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1141853.
- Bond activeJul 16, 2025
- WC coverage startsJul 16, 2025
- License issuedAug 11, 2025
- WC expiresOct 21, 2026
- License expiresAug 31, 2027
- Meyer E J Company INC#218385Yucaipa·A General Engineering Contractor
- Gregg Electric INC#201042Ontario·A General Engineering Contractor
- Willis Kenneth Doyle#253184Big Bear City·A General Engineering Contractor
- Gee Joseph D Enterprises#244644Barstow·A General Engineering Contractor
- Noelte Construction Services INC#235305Chino·A General Engineering Contractor
- Matich Corporation#149783Highland·A General Engineering Contractor
- Beinschroth Mike Construction & Masonry#137573Apple Valley·A General Engineering Contractor
- Kanayan William Construction#360090Rimforest·A General Engineering Contractor
Working a California job with Thacker's Engineering, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Thacker's Engineering? Claim or correct this profile