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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 This record comes from CSLB's public data file dated November 1, 2026 and may be out of date.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.

Williams Thomas C Incorporated: CSLB License #396665

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

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

License details

License number
396665
Primary status
CLEAR · what this means
Business type
Corporation
Full business name
Thomas C Williams Incorporated
Issued
December 18, 1980 (45 years)
Expires
December 31, 2026
Classifications
A General Engineering Contractor
B General Building Contractor
C-61/D-6 Concrete Related Services
Mailing address
2900 Apron Ave, Atwater, CA, 95301
Phone
(209) 383 5731

Workers' compensation

Type
Workers' Compensation Insurance
Insurer
Insurance Company of the West
Policy number
WPL502866911
Effective
January 1, 2026
Expires
January 1, 2027

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

Contractor's bond

Surety
Nationwide Mutual Insurance Company
Bond number
7900338757
Amount
$25,000
Effective
January 1, 2023

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.