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Construction company directory

Construction Companies in Washington

Our directory lists 230 construction companies in Washington across 67 cities, built from OpenStreetMap office records and the ENR Top 400 Contractors list. Seattle has the most listings. Each listing shows only the facts on record.

Companies
230 companies
Cities
67 cities
Ranked contractors
5 ENR Top 400 contractors

Which cities in Washington have the most construction companies?

Seattle has the most construction companies in Washington, with 44 listings, followed by Spokane Valley. Pick a city to see every company listed there.

Which construction companies are listed in Washington?

These are the 30 most complete of the 230 construction companies listed in Washington, with ranked contractors first.

Search all 230 companies in Washington

Which large contractors are based in Washington?

BNBuilders is the highest-ranked contractor listed in Washington, at No. 106 on the ENR Top 400 Contractors list for 2026.

  1. 106BNBuildersSeattle
  2. 180Lease Crutcher LewisSeattle
  3. 223Manson Construction Co.Seattle
  4. 230Graham ConstructionSeattle
  5. 243Lydig ConstructionSpokane Valley

What are the most common construction trades in Washington?

The most listed trade in Washington is plumbing contractors, with 37 companies. A company can be listed under more than one trade.

How do I check a contractor's license in Washington?

Search the Washington State Department of Labor and Industries by company name or license number before you hire. Washington requires contractors to register with the Department of Labor and Industries, and licenses electricians and plumbers.

Check a license in Washington

Licensing rules checked October 2026. Requirements change, so confirm on the state site.

FAQ

Construction companies in Washington: FAQs

How many construction companies are in Washington?

Our directory lists 230 construction companies in Washington, from OpenStreetMap office records and the ENR Top 400 Contractors list.

Which cities in Washington have the most construction companies?

Seattle (44), Spokane Valley (13), Bremerton (11), Bellingham (9) and Kent (8) have the most listings in Washington.

How do I check a contractor's license in Washington?

Washington requires contractors to register with the Department of Labor and Industries, and licenses electricians and plumbers. Search the Washington State Department of Labor and Industries by company or license number before you hire.

Which large contractors are based in Washington?

Ranked contractors listed in Washington include BNBuilders (No. 106), Lease Crutcher Lewis (No. 180), Manson Construction Co. (No. 223) and Graham Construction (No. 230) on the ENR Top 400 Contractors list for 2026.

What construction trades are most common in Washington?

The trades with the most listings in Washington are plumbing contractors (37), hvac contractors (32), roofing contractors (29) and glass and window contractors (24).

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Office locations © OpenStreetMap contributors, available under the Open Database License. Company rankings from the ENR Top 400 Contractors (2026).

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