Records copied from Washington State L&I and the Oregon Construction Contractors Board.
WA L&I license records
Mercer Island contractors on the Washington L&I register
Every Washington L&I registration on file at a Mercer Island, Washington address. A license from one state grants nothing in the other, so a firm working both sides of the river carries both.
- 108 records on file
- Washington State Department of Labor & Industries
- data as of July 2026
1 more Mercer Island business holds an Oregon CCB license instead. Those are a separate register and a separate page: Mercer Island contractors on the Oregon CCB register →
102 unexpired recordsInclude 6 expired
Showing 1 to 25 of 102 records
AC Electric LLCActiveAjs Renovation And ConstActiveAll World Builders LLCActiveAshton Investments LLCActiveAspen Homes NWActiveAspen Quality Homes LLCActiveBaklinski Home ImprovementActiveBarcelo Development LLCActiveBase Crew LLCActiveBayley Construction LPActiveBishop Masonry LLCActiveBlg LandscapesActiveBuilding Specialties NW LLCActiveCarroll Construction IncActiveCc Design Homes LLCActiveChunji Construction IncActiveClean Air SolutionsActiveCoastline Custom Home LLCActiveCoastline Home LLCActiveCornerstone Const & Maint LLCActiveCribmates Holdings LLCActiveDatta Homes LLCActiveDiversified Home MaintActiveEco Electric Plbg Htg & AirActiveEco Electric Plmbng Htng & AirActive
Trades registered in Mercer Island
10 classifications108Records on file
102Unexpired
10Trade classifications
WA L&IIssuing agency
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Published by Contractor Marketing NW, Seattle, Washington. This directory reproduces public license records and is not affiliated with, endorsed by, or operated by any state agency.