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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 license. Nothing here is ranked by us.

  • 112,928 unexpired records
  • 2,573 issued before 1990
  • 116 before 1970
112,928Unexpired registrations
2,573Issued before 1990
116Issued before 1970
1936Oldest still unexpired

Records

Oldest first

Showing 26 to 50 of 112,928 records

W G Clark Construction CoSeattle, WAWA L&IWGCLAC*370N0Licensed 1963ActiveAmerican Const Co IncTacoma, WAWA L&IAMERIC*372N0Licensed 1963ActiveKuney, Max J CoSpokane, WAWA L&IKUNEYMJ372N0Licensed 1963ActiveArmstrong Const Co IncAuburn, WAWA L&IARMSTC*373N0Licensed 1963ActiveBouten Construction CompanySpokane, WAWA L&IBOUTECC371N0Licensed 1963ActiveMcClintock & Turk IncSpokane, WAWA L&IMCCLIT*370N0Licensed 1963ActiveFryer Knowles IncSeattle, WAWA L&IFRYERK*370N0Licensed 1963ActiveN A Degerstrom IncSpokane Valley, WAWA L&IDEGERNA375N0Licensed 1963ActiveSunset Glass Co IncBellevue, WAWA L&ISUNSEG*372N0Licensed 1963ActiveSeattle Boiler Works IncSeattle, WAWA L&ISEATTBW371N0Licensed 1963ActiveSelland Const IncWenatchee, WAWA L&ISELLAC*372N0Licensed 1963ActiveSellen Constr Co IncSeattle, WAWA L&ISELLEC*372N0Licensed 1963ActiveShannon & Wilson IncSeattle, WAWA L&ISHANNW*378N0Licensed 1963ActiveShoreline Const CoWoodinville, WAWA L&ISHOREC*374N0Licensed 1963ActiveStandard Steel Fabrctng Co IncSeattle, WAWA L&ISTANDSF374N2Licensed 1963ActiveQueen Cty Sht Mtl Rfg IncTukwila, WAWA L&IQUEENCS374N7Licensed 1963ActiveMonarch Mach & Tool Co IncPasco, WAWA L&IMONARMT377N8Licensed 1963ActiveH B Painters IncKennewick, WAWA L&IHBPAI**379N9Licensed 1963ActiveSnelson Companies IncSedro Woolley, WAWA L&ISNELSI*374N9Licensed 1963ActiveBanner Furnace & Fuel Co IncSpokane, WAWA L&IBANNEFF378NTLicensed 1963ActiveCressy Door Co IncKent, WAWA L&ICRESSDC370NTLicensed 1963ActiveHaskell CorpBellingham, WAWA L&IHASKE**374NTLicensed 1963ActiveOtis Elevator CoPalm Beach Gardens, WAWA L&IOTISE**377NTLicensed 1963ActiveStanley Roofing Co IncWoodinville, WAWA L&ISTANLR*3755TLicensed 1963ActiveViking Auto Sprinkler CoSeattle, WAWA L&IVIKINAS373NTLicensed 1963Active

What license 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 license, not a citation for the firm. Method is on the sources page.

Verify any record directly with the issuing agency

For contractors

Licensed for decades. Put it on the website.

A registration held this long is a fact homeowners trust. The site puts the year, the license number, and the finished work where they look before they call.

Published by Contractor Marketing NW, Seattle, Washington. This directory reproduces public license records and is not affiliated with, endorsed by, or operated by any state agency.Washington data as of July 2026. Sources and method