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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.

114,993 unexpired records·2,623 issued before 1990·116 before 1970

114,993Unexpired registrations
2,623Issued before 1990
116Issued before 1970
1998Oldest still unexpired

Records

Oldest first

Showing 8,0518,075 of 114,993 records

Klinger Masonry IncDamascus, ORWA L&IKLINGMI021CFLicensed 1998ActiveSecurity Signs IncPortland, ORWA L&ISECURSI020CFLicensed 1998ActiveAti Resources IncHillsboro, OROregon CCBOR-127464Licensed 1998ActiveSaybr Contractors IncTacoma, WAOregon CCBOR-127907Licensed 1998ActiveAll Wall Contracting IncPost Falls, IDWA L&IALLWACI021CZLicensed 1998ActiveC-More Pipe Services CoRickreall, ORWA L&ICMOREPS023CZLicensed 1998ActiveSierra Electric IncPasco, WAWA L&ISIERREI021CZLicensed 1998ActiveBrimm's Painting IncFairview, ORWA L&IBRIMMPI024CSLicensed 1998ActiveMaltby Trucking & Exvtng IncSnohomish, WAWA L&IMALTBTE024CSLicensed 1998ActiveNorthwest Sound Electric CoWoodinville, WAWA L&INORTHSE024CSLicensed 1998ActiveAnthony Robert KorthMedford, OROregon CCBOR-127443Licensed 1998ActiveEmpire Refrigeration IncGrants Pass, OROregon CCBOR-127508Licensed 1998ActiveAir Placed Concrete Spec IncSnohomish, WAWA L&IAIRPLCS021CJLicensed 1998ActiveAlpine Sprinklers IncIssaquah, WAWA L&IALPINSI029CJLicensed 1998ActiveRichard D MichelsonBend, OROregon CCBOR-127521Licensed 1998ActiveLindstrom & Son Construction IncChinook, WAOregon CCBOR-127529Licensed 1998ActiveHeights Glass And Glazing IncHood River, OROregon CCBOR-127880Licensed 1998ActiveMaster's Mountain Homes IncMill Creek, WAWA L&IMASTEMH022CKLicensed 1998ActiveDearmin Concrete ConstructionCle Elum, WAWA L&IDEARMCC027CKLicensed 1998ActiveKnight Const & Supply IncDeer Park, WAOregon CCBOR-127536Licensed 1998ActiveDuke Construction & Excavation LLCBoring, OROregon CCBOR-127933Licensed 1998ActiveBruner Painting IncSelah, WAWA L&IBRUNEPI025CLLicensed 1998ActiveJ & J Stainless Steel Srvs IncYakima, WAWA L&IJJSTASS022CLLicensed 1998ActiveLengco Construction IncMoses Lake, WAWA L&ILENGCCI027TWLicensed 1998ActiveWright Electric IncBurien, WAWA L&IWRIGHEI022CWLicensed 1998Active

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