License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
Insured
Workers' comp coverage on file
Clean record
No complaints or disciplinary actions
Hiring this contractor?
Get alerts if their license status changes.
You're monitoring this license!
We'll email you if the license status, bond, or complaint history changes.
Something went wrong
Is this your business?
Claim your profile to manage your listing.
Claim request submitted!
We'll be in touch at the email you provided to verify your identity.
Something went wrong
U S T TESTING SERVICES INC
- License Number
- 866797
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 1635 CHALLENGE DRIVE CONCORD, CA, 94520 Contra Costa County
- Phone
- (925) 288 8944
License Dates
Issued
11/01/2005
Expires
11/30/2027
Expires in 20 months
CSLB Last Updated
11/18/2025
License Classifications
Personnel & Officers
AMELI SHAHRAM MOHAMMAD JAF
Officer
SANDKOHL STEVEN DALE
Responsible Managing Officer/Chief Executive Officer/President
PEACOCK ROBERT DOYLE
Officer
Contractor Bond
Amount: $25,000
Company: NATIONWIDE MUTUAL INSURANCE COMPANY
Bond #7900420051
Effective: 01/01/2023
Workers' Compensation
Carrier: FEDERAL INSURANCE COMPANY
Policy #54326538
Effective: 04/01/2023
Expires: 04/01/2026
CSLB designation: Workers' Compensation Insurance
Complaints & Disciplinary History
This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.
Verify this record on the official state licensing board
View on Contractors State License Board (CSLB) →Learn how to verify contractor licenses in California
California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.
Verify Another Contractor
Homeowner Resources
Other Licensed A| B| C-4| C12| C16| C20| C34| C36| C38| C42| C43| C60 in CONCORD
CARPER CHRIS
CHRIS CARPER
License #874736 · CA
A & J FENCING
License #874803 · CA
LORIA RYAN PLUMBING
RYAN LORIA PLUMBING
License #874832 · CA
CAL TEC ELECTRICAL SYSTEMS
License #874850 · CA
EUGENY CONSTRUCTION
License #875085 · CA