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.