Independent site · Not affiliated with CSLB or any state agency

Contractor Lookout is an independent website, not affiliated with CSLB or the State of California. This record comes from CSLB's public data file dated November 1, 2026 and may be out of date. Not a consumer report under the FCRA.

Thiessen Construction & Engineering LLC: CSLB License #1083908

Source: CSLB public data · Updated November 1, 2026 · CSLB's record

Active, no issues in CSLB file

Verify live status on CSLB's Instant License Check before hiring.

Verify live on CSLB Report an error / remove my address

The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.

License details

License number
1083908
Primary status
CLEAR · what this means
Business type
Limited Liability
Issued
November 19, 2021 (5 years)
Expires
November 30, 2027
Classifications
A General Engineering Contractor
B General Building Contractor
C-8 Concrete Contractor
Mailing address
4417 Railroad Ave, Pleasanton, CA, 94566
Phone
(925) 485-7824

Workers' compensation

Type
Workers' Compensation Insurance
Insurer
Cypress Insurance Company
Policy number
THWC737372
Effective
March 16, 2026
Expires
March 16, 2027

Confirm coverage with CSLB's insurer search. How to check workers' comp.

Contractor's bond

Surety
American Contractors Indemnity Company
Bond number
100754410
Amount
$25,000
Effective
June 21, 2023

Bond of qualifying individual

Surety
Great American Insurance Company
Bond number
5828488
Amount
$100,000
Effective
October 20, 2024

Status history

No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.

Related

Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.