General contractor · Woodinville, WA

Nelson & Sons Const Co Inc

Active Washington registration NELSOSC045K9 · per L&I records

LicensedBondedInsured

Is Nelson & Sons Const Co Inc Licensed?

Washington L&I records list Nelson & Sons Const Co Inc with registration number NELSOSC045K9 and status ACTIVE, valid until May 30, 2027. The business address on file is in Woodinville, WA 98072.

License Details

License #: NELSOSC045K9
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: May 29, 1996
Expires: May 30, 2027
Business type: Corporation
UBI (state business ID): 601714450
City: Woodinville, WA 98072

Bond and Insurance on File

Surety bond: $30,000 · Contractors Bonding & Insurance Co
Effective May 28, 2025 · Until Canceled
Liability insurance: $1,000,000 · Cincinnati Ins Co
Expires Feb 16, 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 211 days left before it expires on May 30, 2027. Check that date against your project timeline.

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

How This Record Compares in Woodinville

Nelson & Sons Const Co Inc has held registration NELSOSC045K9 for 30.4 years. The median for the 356 active general contractors with a Woodinville address is 9.8 years, and 177 of them have held their registration for 10 years or more, so this registration is among the longer-held ones. 38 of them registered in the last 12 months.

99% of these Woodinville 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

May 29, 1996: Current registration NELSOSC045K9 took effect.
May 28, 2025: $30,000 surety bond with Contractors Bonding & Insurance Co took effect.
Oct 30, 2026: Our copy of the L&I record was taken.
Feb 16, 2027: Cincinnati Ins Co liability policy on file expires.
May 30, 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 NELSOSC045K9 or UBI 601714450. The status there is the official one.
Check that the name on your bid or contract matches Nelson & Sons Const Co 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 Cincinnati 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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