DalsnaFinance › Headquarters › Washington
54 public companies are headquartered in Washington, including 11 in the S&P 500 or Nasdaq-100. The biggest concentrations are in Seattle, Vancouver and Bellevue.
54 companies · 19 cities · 11 ★ index members
Headquarters are each company's principal executive office as filed with the SEC (EDGAR business address), as of October 3, 2026. ★ marks S&P 500 and Nasdaq-100 members. All locations.