General contractor · Mill Creek, WA

Alliant Construction LLC

Active Washington registration ALLIAC*777NQ · per L&I records

LicensedBondedInsured

Is Alliant Construction LLC Licensed?

Washington L&I records list Alliant Construction LLC with registration number ALLIAC*777NQ and status ACTIVE, valid until Sep 22, 2027. The business address on file is in Mill Creek, WA 98012.

License Details

License #: ALLIAC*777NQ
Status: ACTIVE
License type: Construction Contractor
Specialty: General
First effective: Sep 21, 2023
Expires: Sep 22, 2027
Business type: Limited Liability Company
UBI (state business ID): 604671962
City: Mill Creek, WA 98012

Bond and Insurance on File

Surety bond: $30,000 · Philadelphia Indemnity Ins Co
Effective Jul 31, 2026 · Until Canceled
Liability insurance: $1,000,000 · ATEGRITY SPECIALTY INSURANCE C
Expires Jul 29, 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 326 days left before it expires on Sep 22, 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 ALLIAC*777NQ or UBI 604671962. The status there is the official one.
Check that the name on your bid or contract matches Alliant Construction LLC exactly (a limited liability company).
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 ATEGRITY SPECIALTY INSURANCE C 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.

Other General Contractors in Mill Creek

Active general contractor registrations with a Mill Creek address in the same L&I file. Listing here is not an endorsement.

1 Block Bros LLC · General · expires Oct 2, 2028
4Ever Building Solutions LLC · General · expires Sep 24, 2028
A & R Construction · General · expires Dec 17, 2027
A-1 Painting & Construction · General · expires Mar 2, 2027
Adamant Homes Inc · General · expires Jun 7, 2027
Aderey'S Pro Services LLC · General · expires May 21, 2028
Affordable Heating & A/C Inc · General · expires Oct 23, 2027
Air Care System · General · expires May 30, 2027

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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