Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| BOEING EMPLOYEES | TUKWILA, WA | 01-01-1935 | $29,684,318 | CU |
| Washington Federal Bank | Seattle, WA | 01-01-1917 | $28,050,298 | BK |
| Banner Bank | Walla Walla, WA | 01-01-1890 | $16,199,722 | BK |
| Washington Trust Bank | Spokane, WA | 11-03-1902 | $11,052,623 | BK |
| HomeStreet Bank | Seattle, WA | 08-18-1986 | $9,196,814 | BK |
| Heritage Bank | Olympia, WA | 01-01-1927 | $7,148,305 | BK |
| SPOKANE TEACHERS | LIBERTY LAKE, WA | 01-01-1934 | $5,872,401 | CU |
| GESA | RICHLAND, WA | 01-01-1953 | $5,565,454 | CU |
| WASHINGTON STATE EMPLOYEES | OLYMPIA, WA | 01-01-1957 | $5,255,761 | CU |
| TWINSTAR | OLYMPIA, WA | 01-01-1938 | $4,259,303 | CU |
| Coastal Community Bank | Everett, WA | 04-01-1997 | $4,062,509 | BK |
| NUMERICA | Spokane Valley, WA | 01-01-1937 | $4,030,323 | CU |
| SOUND | Tacoma, WA | 01-01-1940 | $2,982,146 | CU |
| 1st Security Bank of Washington | Mountlake Terrace, WA | 04-01-2004 | $2,969,996 | BK |
| WHATCOM EDUCATIONAL | Bellingham, WA | 01-01-1936 | $2,893,212 | CU |