COO Kelli Cullen Assumes New Role
South Boston, MA— April 16, 2026 — The Board of Directors of Mass Bay Credit Union (MBCU) is pleased to announce the appointment of Kelli Cullen as Chief Executive Officer (CEO). Cullen, who currently serves as Chief Operating Officer at the Credit Union, will assume the new role on April 28, 2026, when current CEO, Terry Dorilas, begins her planned retirement after 13 years with Mass Bay Credit Union.
Jeremiah Ahern, Chairman of the Board of Directors at Mass Bay Credit Union, said, “We are so appreciative of all Terry Dorilas has done to bring the Credit Union forward, keep it safe and sound, and prepare us for the future. As she begins her planned retirement, she will pass the baton to our COO, Kelli Cullen, who has a 6-year history with the Credit Union, understands our market position, and is eager to impart new ideas that will help us to grow and sustain what has been built. As the financial services space changes and competition from Fintechs and others is at our doorstep, the Board is certain that Kelli has the knowledge and enthusiasm to take our team forward.”
Kelli Cullen’s extensive banking background includes serving in a senior management position for the past 20 years. Kelli is a Johnson and Wales University graduate and completed the Credit Union Executive Society (CUES) three-year CEO Institute program. When she isn’t working, Kelli enjoys time with her family, photography, and travel locally, nationally, and around the world.
Founded in 1936 as a credit union for MBTA employees, Mass Bay Credit Union has since expanded to include the local communities it serves. As a not-for-profit organization, MBCU puts people, not institutional profit, at the forefront of its mission.
For more information on MBCU:
https://www.massbaycu.org/about/membership/




