Washington L&I Data · Updated Oct 30, 2026Free and Independent · Not a Government Site

General contractor · Mill Creek, WA

Mammoth Const & Wdwrks LLC

Active · expires in 34 days  Washington registration MAMMOCW765RC · per L&I records

LicensedBondedInsured

Is Mammoth Const & Wdwrks LLC Licensed?

Washington L&I records list Mammoth Const & Wdwrks LLC with registration number MAMMOCW765RC and status ACTIVE, valid until Dec 3, 2026. The business address on file is in Mill Creek, WA 98012.

License Details

License #
MAMMOCW765RC
Status
ACTIVE
License type
Construction Contractor
Specialty
General
First effective
Dec 3, 2024
Expires
Dec 3, 2026
Business type
Limited Liability Company
UBI (state business ID)
605622459
City
Mill Creek, WA 98012

Bond and Insurance on File

Surety bond
$30,000 · American Contractors Indem CO
Effective Mar 30, 2026 · Until Canceled
Liability insurance
$1,000,000 · Sutton Specialty Insurance Com
Expires Mar 9, 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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