| Aldus | business | February 1, 1984 |
| Amazon | very large online platform, business, enterprise, public company | July 5, 1994 |
| Amazon Go | retail chain | December 5, 2016 |
| Branded Entertainment Network | photo library, advertising agency, photo agency | 1989 |
| Burlington Northern Railroad | railway company | March 2, 1970 |
| Cray | public company | 1972 |
| Expedia Group | business, enterprise, public company | October 22, 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 |
| Horizon Air | airline | 1981 |
| RealNetworks | privately held company, business, enterprise | 1993 |
| Redfin | real estate company, business, online real estate database | 2004 |
| Riseup | internet service provider, mailbox provider, collective, worker cooperative, charitable organization | 1999 |
| Seattle Computer Products | business | 1979 |
| Seattle's Best Coffee | business | 1991 |
| Starbucks | café chain | March 30, 1971 |
| Undead Labs | business | November 23, 2009 |
| Weyerhaeuser | business, enterprise, public company | 1900 |
| Windstar Cruises | private company limited by shares, cruise line | 1984 |