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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.

116,318 unexpired records·2,665 issued before 1990·119 before 1970

116,318Unexpired registrations
2,665Issued before 1990
119Issued before 1970
1986Oldest still unexpired

Records

Oldest first

Showing 1,7261,750 of 116,318 records

James Kirk DeanPortland, OROregon CCBOR-51525Licensed 1986ActiveArrow Mechanical Contr IncTualatin, ORWA L&IARROWMC141OCLicensed 1986ActiveRainbow Carpets IncRedmond, WAWA L&IRAINBCI146ODLicensed 1986ActiveS & B James Construction CoMedford, OROregon CCBOR-51471Licensed 1986ActiveRobert Neil ChristensenTillamook, OROregon CCBOR-51560Licensed 1986ActiveTrend Landscape Services IncFederal Way, WAWA L&ITRENDLS141OHLicensed 1986ActiveJ & M Gutters IncSilverton, OROregon CCBOR-51572Licensed 1986ActiveG Christianson Construction IncCorvallis, OROregon CCBOR-51576Licensed 1986ActiveShelco Electric IncHermiston, ORWA L&ISHELCEI141OZLicensed 1986ActiveAlamo Paving CoClackamas, OROregon CCBOR-51595Licensed 1986ActiveColumbia Concrete Sawing CoCorvallis, OROregon CCBOR-51437Licensed 1986ActiveWizard Electric IncBellevue, WAWA L&IWIZAREI141OJLicensed 1986ActiveLoyal Mechanical IncSeattle, WAWA L&ILOYALMI141OKLicensed 1986ActiveDiversified Home MaintMercer Island, WAWA L&IDIVERHM148ONLicensed 1986ActiveAcoustical Tile Systems IncEugene, OROregon CCBOR-51631Licensed 1986ActiveBabcock Bros IncBend, OROregon CCBOR-51734Licensed 1986ActiveL A Olson Construction IncFederal Way, WAWA L&ILAOLSCI147OQLicensed 1986ActiveButtice Construction IncWalla Walla, WAWA L&IBUTTICI142OQLicensed 1986ActiveRogue Valley Electric LLCPhoenix, OROregon CCBOR-51466Licensed 1986ActiveHoyt Construction IncScappoose, OROregon CCBOR-51652Licensed 1986ActiveJohansen Electric IncLake Oswego, OROregon CCBOR-51539Licensed 1986ActiveApre's BuilderWalla Walla, WAWA L&IAPRESB*141O4Licensed 1986ActiveCommercial Interiors IncRedmond, WAWA L&ICOMMEII147O4Licensed 1986ActiveHoffman Structures IncPortland, OROregon CCBOR-51706Licensed 1986ActiveJames M HallAstoria, OROregon CCBOR-51640Licensed 1986Active

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.

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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