Records copied from Washington State L&I and the Oregon Construction Contractors Board.

WA L&I licence records

Mount Vernon contractors on the Washington L&I register

Every Washington L&I registration on file at a Mount Vernon, Washington address. A licence from one state grants nothing in the other, so a firm working both sides of the river carries both.

570 records on file·Washington State Department of Labor & Industries·data as of July 2026

13 more Mount Vernon businesses hold an Oregon CCB licence instead. Those are a separate register and a separate page: Mount Vernon contractors on the Oregon CCB register →

545 unexpired recordsInclude 25 expired

A–Z Newest licence Longest established

General407 Landscaping30 Painting/Wallcovering16 Cabinets, Millwork And Finish Carpentry9 Residential9 Journey Level8 Roofing7 Handyman6 Siding6 Concrete5 Excavation, Grading And Land Clearing5 Tile, Ceramic, Mosaic, Natural And Mfg Stone5

Showing 351–375 of 545 records

Nilson Construction CoGeneralWA L&INILSOCC791CRLicensed 2021Active No 7 Development LLCGeneralWA L&INO7DE7D841DCLicensed 2016Active Noble Outdoor Services LLCLandscapingWA L&INOBLEOS765PDLicensed 2024Active Norma LLPGeneralWA L&INORMAL*771CBLicensed 2023Active North Coast Construction IncGeneralWA L&INORTHCC770BRLicensed 2023Active North County Garage Doors LLCGeneralWA L&INORTHCG756BCLicensed 2025Active North Fork Nursery IncLandscapingWA L&INORTHFN936QHLicensed 2008Active North Sound EnviroairHeating/Vent/Air-conditioning And Refrig (HVAC/R)WA L&INORTHSE779QALicensed 2023Active North Sound Mold SolutionsGeneralWA L&INORTHSM789LFLicensed 2022Active North State Drywall LLCDry WallWA L&INORTHSD758RDLicensed 2025Active North West Flrng InstallationsGeneralWA L&INORTHWF913DKLicensed 2009Active North-West Rstrtn LLCPainting/WallcoveringWA L&INORTHRL880N8Licensed 2012Active Northill Construction CompanyGeneralWA L&INORTHCC051B4Licensed 1995Active Northriver Drywall & Pntg LLCGeneralWA L&INORTHDP747BOLicensed 2026Active Northwest Costum Constr LLCGeneralWA L&INORTHCC778D9Licensed 2023Active Northwest FabricationWelding And Ornamental MetalWA L&INORTHF*924BWLicensed 2008Active Northwest Lock And KeyLocks, Security And Alarm EquipmentWA L&INORTHLK786R2Licensed 2022Active Northwest Pro Landscaping LLCLandscapingWA L&INORTHPL758C4Licensed 2025Active Nr Golden Concrete & Const LLCGeneralWA L&INRGOLGC753NQLicensed 2025Active Nutter, Louis William SrGeneralWA L&INUTTELW044PALicensed 1996Active NW Custom Plumbing LLCResidentialWA L&INWCUSCP791RMLicensed 2022Active NW Dirt Demo & Salvage LLCGeneralWA L&INWDIRDD843QWLicensed 2016Active Okara Carpentry LLCCabinets, Millwork And Finish CarpentryWA L&IOKARACL794NSLicensed 2021Active Okara Interior LLCCabinets, Millwork And Finish CarpentryWA L&IOKARAIL798L2Licensed 2021Active Olympus Flooring CompanyGeneralWA L&IOLYMPFC884RKLicensed 2012Active

Top 12 trades in Mount Vernon

40 classifications

570Records on file

545Unexpired

40Trade classifications

WA L&IIssuing agency

Verify any record directly with the issuing agency: WA L&I Verify a Contractor · Oregon CCB licence search

For contractors

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Published by PNW Contractor Marketing, SeaTac, Washington. This directory reproduces public licence records and is not affiliated with, endorsed by, or operated by any state agency.Washington data as of July 2026. Sources & method