Licensed contractors in Columbia, Washington

Contractors with an active Washington license and a business address in Columbia (King County). Each listing shows what the state has on file.

• D S Construction Services LLC
  General Contractors · #DSCONSC791DH
  Active Insurance expiring soon
• Deco Well LLC
  Painting · #DECOWWL753P7
  Active Insurance current
• Gold Mountain Contracting LLC
  General Contractors · #GOLDMMC833DZ
  Active Insurance current
• Northwest Const & Supply INC
  General Contractors · #NORTHCS000N5
  Active Insurance current

Last checked against state records on Oct 4, 2026. How we get this data.