Lake Michigan Credit Union is a federally insured state-chartered credit union headquartered in Caledonia, Michigan, chartered in 1933. With approximately $16.9 billion in assets and over 530,000 members, it operates 39 branches across Michigan and is the largest credit union in West Michigan. Originally founded as a financial institution for teachers, it now serves the general public.

Lake Trust Credit Union is a community-based, not-for-profit financial cooperative headquartered in Brighton, Michigan, with over 175,000 members and more than $2.5 billion in assets. It operates branches across more than 20 Michigan cities and is regulated by the National Credit Union Administration (NCUA). Lake Trust became a certified Community Development Financial Institution (CDFI) in 2017 and ranks in the top 1% of credit unions nationwide.