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Records copied from Washington State L&I and the Oregon Construction Contractors Board.

License classification

Drilling, Blasting And Soil Sampling contractors in Washington

Records the state files classify as “Drilling, Blasting And Soil Sampling”. The classification is the agency's own, not a category we assigned.

  • 27 records
  • Washington L&I 27
  • Oregon CCB 0
  • WA data as of July 2026
25 unexpired recordsInclude expired
Both statesWashington27
Chehalis2Kent2Seattle2Camas Valley1Canonsburg1Carson City1Clark Fork1Covington1Elko1Fall City1Federal Way1Minneapolis1

Showing 1 to 25 of 25 records

What this classification means

Washington and Oregon issue different legal instruments. A Washington registration under “Drilling, Blasting And Soil Sampling” is a contractor registration with L&I; an Oregon license under a comparable endorsement is issued by the CCB. They are not the same credential and neither one transfers to the other state. A contractor working both sides of the river needs both. This page reproduces whichever classification the agency recorded, verbatim.

27Records in this classification
27Washington
0Oregon
ChehalisLargest concentration

Drilling, Blasting And Soil Sampling contractors by city

Chehalis2Kent2Seattle2Camas Valley1Canonsburg1Carson City1Clark Fork1Covington1Elko1Fall City1Federal Way1Minneapolis1

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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