TruStone Financial is a credit union driven to create exceptional financial experiences. We engage, educate and inspire our members to achieve lifelong financial well-being. Federally insured by NCUA. Equal Housing Opportunity Lender. Equal Opportunity Employer.It all began with a few teachers and a dream. Back in 1939, eight Minneapolis teachers decided to take control of their own financial security. They formed the Minneapolis Federation of Teachers Credit Union. Over the years the credit union has endured name changes, added field of memberships and expanded across the Midwest. In 2020 a merger with Firefly Credit Union – Minnesota’s first financial cooperative – made us the second-largest credit union in the state. But your goals have always been our priority, and we exist to help you reach them.As a not-for-profit financial institution, we're different from a bank because our members are our owners (people who live, work, worship, attend school, or volunteer in our membership area). Our profits are returned as competitive rates, higher investment returns and fewer fees.Federally insured by NCUA. Equal Housing Opportunity.