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

Ordered by first registration date

The longest-established contractors on the registry

Unexpired registrations, oldest first. The sort key is the date the agency first issued the licence — nothing here is ranked by us.

114,587 unexpired records·2,615 issued before 1990·116 before 1970

114,587Unexpired registrations
2,615Issued before 1990
116Issued before 1970
2000Oldest still unexpired

Records

Oldest first

Showing 10,32610,350 of 114,587 records

Brown Contracting IncEugene, ORWA L&IBROWNCI002ORLicensed 2000ActiveRon's Tree ServiceBonney Lake, WAWA L&IRONSTS*005ORLicensed 2000ActiveClearview Glass Co IncEverett, WAWA L&ICLEARGC008OOLicensed 2000ActiveMitchell Building CompanySeattle, WAWA L&IMITCHBC001O1Licensed 2000ActiveHarrell & Son Plumbing IncBonney Lake, WAWA L&IHARRESP004N5Licensed 2000ActiveSound AcousticsPort Orchard, WAWA L&ISOUNDA*008O2Licensed 2000ActiveDallas Landscapes IncVancouver, WAWA L&IDALLALI004O5Licensed 2000ActiveHorst IncPasco, WAWA L&IHORSTI*006NMLicensed 2000ActiveBig River Electric LLCHermiston, OROregon CCBOR-146155Licensed 2000ActiveQuality Water Care IncStanwood, WAWA L&IQUALIWC001O6Licensed 2000ActiveR M S IncTumwater, WAWA L&IRMSIN**006O6Licensed 2000ActiveClean Cut Tree/Stmp Gdg Sr IncArlington, WAWA L&ICLEANCT001O7Licensed 2000ActiveMikhail's Contracting IncWoodinville, WAWA L&IMIKHACI001O8Licensed 2000ActiveTolmie Enterprises IncHillsboro, ORWA L&ITOLMIEI002O8Licensed 2000ActiveWm M Yedor IncSeattle, WAWA L&IWMMYEI*006O8Licensed 2000ActiveMartin Metal Fabricators IncSalem, OROregon CCBOR-146181Licensed 2000ActiveCraige Warner Plumbing LLCAlbany, OROregon CCBOR-146192Licensed 2000ActiveDesantis Landscapes IncSalem, OROregon CCBOR-146197Licensed 2000ActiveAhearn Electric IncBremerton, WAWA L&IAHEAREI008PALicensed 2000ActiveRock Solid IncSouth Colby, WAWA L&IROCKSI*002PALicensed 2000ActiveCedar Mill Construction Co LLCTualatin, ORWA L&ICEDARMC000PBLicensed 2000ActiveRailproKent, WAWA L&IRAILP**001PBLicensed 2000ActiveAll Phase Heating IncVancouver, WAOregon CCBOR-146201Licensed 2000ActiveMorgans Fine Finishes LLCTualatin, OROregon CCBOR-146209Licensed 2000ActiveAnderson Environmntl Cntrg LLCKelso, WAWA L&IANDEREC005PDLicensed 2000Active

What licence age does and does not mean

A registration first issued decades ago means the credential has been maintained that long. It does not necessarily mean the same people run the business, or that the business has traded continuously — ownership can change while a registration is kept alive. Read it as a fact about the licence, not a citation for the firm. Method is on the sources page.

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

For contractors

Been licensed for decades and still invisible online?

A registration from 1987 is worth more than any badge a directory can sell you. Most homeowners will never see it unless your website says so.

See what we build
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