Charter Oak Federal Credit Union is a financial cooperative that serves the needs of its member-owners. This not-for-profit has 12 locations in Connecticut and offers customers personal and business banking services. Specialties include checking and savings accounts, IRAs, health savings, insurance, loans and merchant card processing. The main branch on Chicago Avenue has a lobby and drive-up location that maintain standard operating hours on weekdays. Two 24-hour ATMs are available onsite.