Allegius Credit Union began its roots as Bethlehem Employees Federal Credit Union (BEFCU) in 1966. It was officially chartered March 30, 1966 with 25 charter members with the field of membership including employees of Bethlehem Steel Corporation who worked in Burns Harbor, Indiana, and members of Local 6787 United Steelworkers of America. Soon after - immediate family members became eligible to join BEFCU as well.