Maine Savings Federal Credit Union is a federally insured, not-for-profit credit union headquartered in Hampden, Maine, founded in 1961 by employees of the Bangor and Aroostook Railroad Company. It is the second-largest credit union in Maine, serving over 39,000 members with approximately $770 million in assets across 11 branches. The credit union offers a full range of financial services including checking, savings, loans, mortgages, and investment products.

Atlantic Regional Federal Credit Union is a federally chartered credit union headquartered in South Portland, Maine. It serves members across Maine and surrounding regions with a focus on community banking services. The institution operates as a member-owned cooperative providing deposit and lending products to its membership base.