Williamson Landscape Arch LLC

Is Williamson Landscape Arch LLC Licensed?

Washington L&I records list Williamson Landscape Arch LLC with registration number WILLILA055LO and status ACTIVE, valid until Mar 23, 2028. The business address on file is in Seattle, WA 98122.

License Details

License #

WILLILA055LO

Status

ACTIVE

License type

Construction Contractor

Specialty

General

First effective

Jun 20, 1995

Expires

Mar 23, 2028

Business type

Limited Liability Company

UBI (state business ID)

601598364

City

Seattle, WA 98122

Bond and Insurance on File

Surety bond

$30,000 · Western Surety Co
Effective Mar 23, 2025 · Until Canceled

Liability insurance

$1,000,000 · Ohio Cas Ins Co
Expires Mar 23, 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 509 days left before it expires on Mar 23, 2028. Check that date against your project timeline.

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

How This Record Compares in Seattle

Williamson Landscape Arch LLC has held registration WILLILA055LO for 31.4 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

• Jun 20, 1995: Current registration WILLILA055LO took effect.
• Mar 23, 2025: $30,000 surety bond with Western Surety Co took effect.
• Oct 30, 2026: Our copy of the L&I record was taken.
• Mar 23, 2027: Ohio Cas Ins Co liability policy on file expires.
• Mar 23, 2028: Registration expires unless renewed.

Other L&I Registrations Under UBI 601598364

The L&I file lists 1 other contractor registration under the same state business ID (UBI). Older numbers usually reflect renewals under a new number, name changes or a change of business structure.

• WILLILA996RU · Williamson Landscape Arch LLC · ACTIVE · effective Dec 31, 2001, expires Dec 31, 2027

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

1. Use the Confirm on L&I Verify button and search registration WILLILA055LO or UBI 601598364. The status there is the official one.
2. Check that the name on your bid or contract matches Williamson Landscape Arch LLC exactly (a limited liability company).
3. On L&I Verify, look for bond claims, lawsuits and any newer registration.
4. Ask for a certificate of insurance sent directly by the insurer, and compare it with the Ohio Cas 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.

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