List of companies based in Seattle

This is a list of large or well-known interstate or international companies headquartered in the Seattle metropolitan area.

As of December 2021[update], the Seattle metropolitan area is home to ten Fortune 500 companies: Internet retailer Amazon (#2), Costco Wholesale (#12), Microsoft (#15), coffee chain Starbucks (#125), Paccar (#159), clothing merchant Nordstrom (#289), Weyerhaeuser (#387), Expeditors International (#299), Alaska Airlines (#459), and Expedia (#500).

[1] Other large or well-known interstate or international companies popularly associated with Seattle are actually based in other Puget Sound cities: