General contractor · Woodinville, WA

Koss Construction Inc

Active Washington registration KOSSCCI877NH · per L&I records

LicensedBondedInsured

Is Koss Construction Inc Licensed?

Washington L&I records list Koss Construction Inc with registration number KOSSCCI877NH and status ACTIVE, valid until Aug 8, 2027. The business address on file is in Woodinville, WA 98072.

License Details

License #: KOSSCCI877NH
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: Aug 8, 2013
Expires: Aug 8, 2027
Business type: Corporation
UBI (state business ID): 603321199
City: Woodinville, WA 98072

Bond and Insurance on File

Surety bond: $30,000 · Ohio Cas Ins Co
Effective Jul 1, 2024 · Until Canceled
Liability insurance: $1,000,000 · Champlain Specialty Insurance
Expires Aug 8, 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 281 days left before it expires on Aug 8, 2027. Check that date against your project timeline.

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

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 KOSSCCI877NH or UBI 603321199. The status there is the official one.
Check that the name on your bid or contract matches Koss Construction Inc 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 Champlain Specialty Insurance 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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