St. Mary's Credit Union is a full-service, not-for-profit financial cooperative serving personal and business members from its headquarters in Marlborough, Massachusetts, and across the MetroWest region. Founded in 1913, the institution has operated for more than a century and today serves over 55,850 members through seven branch locations.
Its product line spans checking and savings accounts, certificates of deposit, personal and business loans, mortgages, home equity lines of credit and credit cards. Alongside these, the credit union provides digital banking tools, wealth management services and business cash management solutions. Technical work within the organisation touches digital banking, wealth management technology and business cash management platforms.
As a member-owned cooperative, St. Mary's Credit Union operates under a not-for-profit structure, a model it says supports competitive rates and lower fees relative to for-profit banks. The organisation cites personalised service, financial education initiatives and community engagement among its operating priorities, alongside its stated mission of helping neighbours achieve their financial goals and providing safe and secure savings for members.






