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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
1987Oldest still unexpired

Records

Oldest first

Showing 1,8261,850 of 116,318 records

Kevin J KuhlmanRidgefield, WAOregon CCBOR-52568Licensed 1987Active4 Seas EnterprisesGig Harbor, WAWA L&IFOURSE*132CPLicensed 1987ActiveAllied Construction IncWoodinville, WAWA L&IALLIECI131CPLicensed 1987ActiveBlackline IncVancouver, WAWA L&IBLACKI*135CPLicensed 1987ActiveIsland Excavating IncEastsound, WAWA L&IISLANEI136CQLicensed 1987ActiveBallard Sheet Metal Works IncSeattle, WAWA L&IBALLASM134CRLicensed 1987ActiveD & G ConcreteKennewick, WAWA L&IDGCON**137CRLicensed 1987ActiveLeishman, TerryFerndale, WAWA L&ILEISHT*132C4Licensed 1987ActiveWilliam Durig Finish Carpentry IncSalem, OROregon CCBOR-52654Licensed 1987ActiveSpecialized Concrete Pumping IncEagle Point, OROregon CCBOR-52762Licensed 1987ActiveLockwood ReconstructionCheney, WAWA L&ILOCKWR*132DALicensed 1987ActiveP P S Heating & A/C IncIssaquah, WAWA L&IPPSHEA*133DALicensed 1987ActiveHebert Construction IncSumner, WAWA L&IHEBERCI131DBLicensed 1987ActiveGillespie Roofing IncWalla Walla, WAWA L&IGILLERI136DELicensed 1987ActiveK2 Construction IncBoise, IDWA L&IKTWOCI*137DZLicensed 1987ActiveInterior Technology IncOregon City, ORWA L&IINTERTI138DZLicensed 1987ActiveKast Construction IncEugene, OROregon CCBOR-52575Licensed 1987ActiveAlex Boutacoff Construction IncMedford, OROregon CCBOR-52876Licensed 1987ActiveShoomadoggie Enterprises IncPoulsbo, WAWA L&ISHOOMEI132DKLicensed 1987ActiveElectrocomMountlake Ter, WAWA L&IELECT**137DPLicensed 1987ActiveMichael O PowellWaldport, OROregon CCBOR-52908Licensed 1987ActiveGreenhoot Construction IncSpringfield, OROregon CCBOR-52771Licensed 1987ActiveG B C Construction IncWoodinville, WAWA L&IGBCCOI*133DRLicensed 1987ActiveDennis H BrownGrants Pass, OROregon CCBOR-52928Licensed 1987ActiveDonn EastonBeaverton, OROregon CCBOR-52933Licensed 1987Active

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