YACKO JOHN
License
- Status
- CLEAR
- First issued
- June 25, 1999
- Expires
- September 30, 2027
- Entity
- Sole Owner
- Address of record
- 1439 W HARVARD PLACE, Ontario, CA 91762
- Phone of record
- (909) 702 5216
Contractor bond
- Surety
- ATLANTIC SPECIALTY INSURANCE COMPANY
- Bond number
- 800246619
- Amount
- $25,000
- Effective
- May 22, 2026
Workers’ compensation
This contractor has certified to the state that they have no employees, so they carry no workers’ compensation policy. The exemption covers only the license holder. If anyone else works on your project — a crew, a helper, a day laborer — they are not covered, and an injury on your property can become your liability. Ask who will physically be on site.
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 62 licensed general engineering contractors in Ontario.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| YACKO JOHN FRANK III | Sole Owner | June 25, 1999 | Current |
| YACKO JOHN FRANK III | Sole Owner | August 2, 2013 | Current |
| YACKO JOHN FRANK III | Sole Owner | October 12, 1999 | January 1, 2004 |
Is this your license?
Claim this page to add your photos, description, service area and contact details. The state’s record above stays exactly as it is — claiming adds to a page, it never edits or hides anything the CSLB reports.
Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.