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

WA L&I licence records

Seattle contractors on the Washington L&I register

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

3,748 records on file·Washington State Department of Labor & Industries·data as of July 2026

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

3,618 unexpired recordsInclude 130 expired

A–Z Newest licence Longest established

General2,794 Painting/Wallcovering150 Landscaping132 Journey Level72 Floor Covering And Counter Tops52 Cabinets, Millwork And Finish Carpentry50 Residential48 Handyman41 Limited Energy32 Heating/Vent/Air-conditioning And Refrig (HVAC/R)28 Tile, Ceramic, Mosaic, Natural And Mfg Stone21 Concrete19

Showing 1,951–1,975 of 3,618 records

M R L Construction LLCGeneralWA L&IMRLCORL922R9Licensed 2008Active M ThompsonGeneralWA L&IMTHOMT*910JNLicensed 2009Active M Y Floor CoveringsFloor Covering And Counter TopsWA L&IMYFLOC*066DSLicensed 1994Active M&h Services LLCGeneralWA L&IMHSERSL774LMLicensed 2023Active M&j Remodeling Contractor LLCGeneralWA L&IMJREMRC779M8Licensed 2023Active M&T Refrigeration Rpr Srvc LLCGeneralWA L&IMTREFRR771LTLicensed 2023Active Ma's General Construction IncGeneralWA L&IMASGECI991BULicensed 2001Active Maac Investments & Srvcs LLCGeneralWA L&IMAACIIS755PALicensed 2025Active Mac's Flooring LLCGeneralWA L&IMACSFFL766BSLicensed 2024Active Macdonald-Miller Fac Solns LLCGeneralWA L&IMACDOFS754BULicensed 2025Active Macdonald-Miller Fac Solns LLCJourney LevelWA L&IMACDOFS798P9Licensed 2021Active Machinists IncGeneralWA L&IMACHII*811C1Licensed 2019Active Mack N Williams Contrctng LLCGeneralWA L&IMACKNNW766R6Licensed 2024Active Macro Ecto LLCGeneralWA L&IMACROEL745J8Licensed 2026Active Mad Hatter LLCMasonryWA L&IMADHAHL790LWLicensed 2021Active Madelyn Katzman Gardening LLCLandscapingWA L&IMADELKG971BPLicensed 2003Active Madison Construction LLCGeneralWA L&IMADISCL757R4Licensed 2025Active Madison General Contrs LLCGeneralWA L&IMADISGC756RRLicensed 2025Active Madison Master Builders IncGeneralWA L&IMADISMB818JBLicensed 2019Active Madison Park Handyman LLCGeneralWA L&IMADISPH810NALicensed 2019Active Madrow Homes LLCGeneralWA L&IMADROHL805QBLicensed 2020Active Magazine Quality KitchensGeneralWA L&IMAGAZQK847DTLicensed 2016Active Magnolia Home Service Pros LLCGeneralWA L&IMAGNOHS768KFLicensed 2024Active Magnus ConstructionGeneralWA L&IMAGNUC*112NGLicensed 1989Active Maher Landscaping LLCLandscapingWA L&IMAHERLL809JLLicensed 2020Active

Top 12 trades in Seattle

66 classifications

3,748Records on file

3,618Unexpired

66Trade 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