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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 →

3,748 total recordsHide expired
General2,794Painting/Wallcovering150Landscaping132Journey Level72Floor Covering And Counter Tops52Cabinets, Millwork And Finish Carpentry50Residential48Handyman41Limited Energy32Heating/Vent/Air-conditioning And Refrig (HVAC/R)28Tile, Ceramic, Mosaic, Natural And Mfg Stone21Concrete19

Showing 3,051–3,075 of 3,748 records

Second Use Building Mtrls IncGeneralWA L&ISECONUB011N5Licensed 1999ActiveSecretario Design BuildGeneralWA L&ISECREDB801CFLicensed 2020ActiveSeider Woodworking LLCGeneralWA L&ISEIDEWL795NDLicensed 2021ActiveSeismic Shutoff LLCGeneralWA L&ISEISMSL820NBLicensed 2018ActiveSelander Laboratories LLCGeneralWA L&ISELANLL755LFLicensed 2025ActiveSellen Constr Co IncGeneralWA L&ISELLEC*372N0Licensed 1963ActiveSender ResidentialGeneralWA L&ISENDER*758M4Licensed 2025ActiveSenn Landscaping LLCLandscapingWA L&ISENNLLL772DBLicensed 2023ActiveSensible Builder LLCGeneralWA L&ISENSIBL871J3Licensed 2013ActiveSerg SidingSidingWA L&ISERGSS*852PRLicensed 2015ActiveSergio Big Maple LLCGeneralWA L&ISERGIBM809B9Licensed 2020ActiveServata ProGeneralWA L&ISERVAP*764CELicensed 2024ActiveSeth Jarreau General Contr LLCGeneralWA L&ISETHJJG778R2Licensed 2023ActiveSetz Construction IncGeneralWA L&ISETZCCI756RELicensed 2025ActiveSevan Locks & DoorsGeneralWA L&ISEVANLD844C4Licensed 2016ActiveSevan SystemsLimited EnergyWA L&ISEVANS*750O4Licensed 2025ActiveSevan SystemsGeneralWA L&ISEVANS*752KBLicensed 2025ActiveSeven Hills Design LLCGeneralWA L&ISEVENHD947J1Licensed 2006ActiveSf ConstructionGeneralWA L&ISFCONC*856NGLicensed 2015ActiveSg Construction LLCGeneralWA L&ISGCONCL827KULicensed 2018ActiveSg Development Group LLCGeneralWA L&ISGDEVDG755RDLicensed 2025ActiveSg Site Solutions LLCGeneralWA L&ISGSITSS768KMLicensed 2024ActiveShack Medicine LLCGeneralWA L&ISHACKML776DNLicensed 2023ActiveShannon & Wilson IncWell DrillingWA L&ISHANNW*378N0Licensed 1963ActiveShannon Hageman ConstructionCabinets, Millwork And Finish CarpentryWA L&ISHANNHC843M5Licensed 2016Active

Top 12 trades in Seattle

66 classifications
General2,794Painting/Wallcovering150Landscaping132Journey Level72Floor Covering And Counter Tops52Cabinets, Millwork And Finish Carpentry50Residential48Handyman41Limited Energy32Heating/Vent/Air-conditioning And Refrig (HVAC/R)28Tile, Ceramic, Mosaic, Natural And Mfg Stone21Concrete19
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