AmeriCU’s journey began in 1950, when it was first established as the Griffiss Employees Credit Union at Griffiss Air Force Base in Rome, NY. It was originally chartered to serve only civilian members, but as its membership grew, the credit union expanded to include military personnel. This growth led to its transition into Griffiss-Oneida Federal Credit Union.

By the late 1970s, Griffiss-Oneida FCU introduced additional financial services, launching the Share Draft Program in 1977 and a Mortgage program in 1980. These solutions provided members with easier access to manage their finances and achieve their goals.