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 →
3,621 unexpired recordsInclude 127 expired
Showing 76–100 of 3,621 records
Acclaim Plumbing And DrainActiveAcco Engineered Systems IncActiveAccurate Mechanical LLCActiveAccurate Mechanical LLCActiveAce 1 Const & Lndscpg IncActiveAce Concrete Finishing IncActiveAce HVAC Service LLCActiveAce Lawn & GardenActiveAce Msnry & Waterprofng CorpActiveAce Of Hardwoods LLCActiveAcg Builds IncActiveAchilles Craftsman LLCActiveAci Mechanical & HVAC SalesActiveAcorn ConstructionActiveAcs Seattle LLCActiveAction Industries LLCActiveAction PlumbingActiveActive Environmental IncActiveAcumen Handyman LLCActiveAdams Brothers Constructn LLCActiveAdams Residential Contrng IncActiveAdaptive Tree Care LLCActiveAdekco LLCActiveAdl ContractingActiveAdmiral Construction LLCActive
Top 12 trades in Seattle
66 classifications3,748Records on file
3,621Unexpired
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
Work in Seattle? Your record is already here.
Washington State L&I registration publishes your registration, so it appears on this page. Claim it free and add what you actually do.
Claim your recordPublished 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