GESA Credit Union is a not-for-profit, member-owned credit union headquartered in Richland, Washington, serving over 300,000 members across Washington, Oregon, and Idaho with more than $6.4 billion in assets. One of the largest credit unions in the Pacific Northwest, GESA operates over 50 branches and loan centers, including campus branches at Washington State University and student-run high school branches. The credit union offers consumer, mortgage, and commercial banking services to its communities.

Harborstone Credit Union is a Washington-chartered, federally insured credit union headquartered in Lakewood, Washington, founded in 1955 as McChord Federal Credit Union. With approximately 120,000 members and $3 billion in assets, it operates 18 branches across Washington State and serves the Puget Sound region. The credit union expanded its field of membership in 1996 to include all Washington residents and has grown through mergers with Prevail Credit Union and TULIP Cooperative Credit Union.

Salal Credit Union is a NCUA-insured, member-owned financial cooperative headquartered in Seattle, Washington, founded in 1948 by nine healthcare workers. It serves over 50,000 members across 18 states with $656 million in assets and offers personal and business banking services. The credit union is notable for being an early adopter of geographic membership expansion and for providing banking services to the legal cannabis industry since 2014.

Seattle Metropolitan Credit Union is a federally chartered credit union serving the Seattle, Washington area. It provides financial services including savings accounts, loans, and other banking products to eligible members. The credit union operates as a member-owned cooperative financial institution.

Sound Credit Union is a federally chartered credit union based in Tacoma, Washington, serving members in the Puget Sound region. The institution provides traditional banking services including savings accounts, loans, and financial products to its membership base.