General contractor · Seattle, WA

W G Clark Construction Co

Active Washington registration WGCLAC*370N0 · per L&I records

LicensedBondedInsured

Is W G Clark Construction Co Licensed?

Washington L&I records list W G Clark Construction Co with registration number WGCLAC*370N0 and status ACTIVE, valid until Aug 28, 2027. The business address on file is in Seattle, WA 98102.

License Details

License #: WGCLAC*370N0
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: Jul 24, 1963
Expires: Aug 28, 2027
Business type: Corporation
UBI (state business ID): 578015994
City: Seattle, WA 98102

Bond and Insurance on File

Surety bond: $30,000 · Safeco Ins Co of America
Effective Apr 1, 2025 · Until Canceled
Liability insurance: $1,000,000 · Hartford Fire Ins Co
Expires Apr 1, 2027

What Active Status Means

The registration is current: L&I has a bond and liability insurance on file and the term has not ended. ACTIVE is necessary but not sufficient, so also check the expiry date, the bond and the insurance below.

Can this business work under this registration? Can work while it stays active.

The registration has 301 days left before it expires on Aug 28, 2027. Check that date against your project timeline.

All status codes are explained in Washington Contractor License Statuses Explained.

How This Record Compares in Seattle

W G Clark Construction Co has held registration WGCLAC*370N0 for 63.3 years. The median for the 2,643 active general contractors with a Seattle address is 6.2 years, and 928 of them have held their registration for 10 years or more, so this registration is among the longer-held ones. 383 of them registered in the last 12 months.

99% of these Seattle records have a surety bond on file and 100% have liability insurance on file. The median insurance amount on file is $1,000,000; this business lists $1,000,000, which is equal to that median. Insurance amounts are what the insurer reported to L&I; they are not a rating of the business.

Record Timeline

Jul 24, 1963: Current registration WGCLAC*370N0 took effect.
Apr 1, 2025: $30,000 surety bond with Safeco Ins Co of America took effect.
Oct 30, 2026: Our copy of the L&I record was taken.
Apr 1, 2027: Hartford Fire Ins Co liability policy on file expires.
Aug 28, 2027: Registration expires unless renewed.

Checks for General Contractors

General contractors must file a $30,000 surety bond (RCW 18.27.040, effective July 1, 2024). This record lists a $30,000 bond. See General vs Specialty Contractor Registration in Washington.
Use a general contractor when the project involves more than one trade. Subcontractors on your job must be registered too.
Compare bids on scope, schedule and payment terms, not just the total.
More detail: How to Choose a General Contractor in Washington.

How to Verify This Contractor

Use the Confirm on L&I Verify button and search registration WGCLAC*370N0 or UBI 578015994. The status there is the official one.
Check that the name on your bid or contract matches W G Clark Construction Co exactly (a corporation).
On L&I Verify, look for bond claims, lawsuits and any newer registration.
Ask for a certificate of insurance sent directly by the insurer, and compare it with the Hartford Fire Ins Co policy on file.

A full walkthrough is in How to Check a Contractor License in Washington.

Record data as of Oct 30, 2026, from the Washington L&I contractor file.

Accuracy notice. Data from Washington L&I open data (public domain, PDDL), not affiliated with any government. Records change; confirm on the official L&I Verify tool before hiring. Search other businesses with the Washington contractor license lookup.

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