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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 112,926 to 112,928 of 112,928 records

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