| Amazon Web Services | platform as a service, hyperscaler, internet hosting service, computing platform, business | March 2006 |
| Brooks Sports | business, subsidiary company | 1914 |
| Burlington Northern Railroad | railway company | March 2, 1970 |
| Cray | public company | 1972 |
| F5, Inc. | software company, public company | 1996 |
| Fantagraphics Books | comics publishing company, book publisher | 1976 |
| Getty Images | joint-stock company, photo archive, photo agency, public company | 1995 |
| Holland America Line | business, enterprise, cruise line | 1873 |
| Planetary Resources | space company, former entity, mining company | January 1, 2009 |
| RealNetworks | privately held company, business, enterprise | 1993 |
| Riseup | internet service provider, mailbox provider, collective, worker cooperative, charitable organization | 1999 |
| Seabourn Cruise Line | business, cruise line | 1986 |
| Seattle Computer Products | business | 1979 |
| Seattle University | private not-for-profit educational institution, Catholic university | 1891 |
| Starbucks | café chain | March 30, 1971 |
| Stratolaunch Systems | business, enterprise | 2011 |
| Undead Labs | business | November 23, 2009 |
| Weyerhaeuser | business, enterprise, public company | 1900 |
| Zillow | website, business, online real estate database, enterprise, public company | 2006 |