Since 2022 the organization has also operated a Junior "B" franchise of the same name that plays in the OJBLL.

The St. Catharines Athletics Jr.A squad has played in various arenas and under many different names in their history.

In 2021 the Athletics organization acquired the St. Catharines Spartans franchise of the OJBLL.

They were renamed to the Athletics as well and now serve as a direct affiliate to the Junior "A" squad.

Recently drafted players (2020) include: Note: GP = Games played, W = Wins, L = Losses, T = Ties, Pts = Points, GF = Goals for, GA = Goals against Lost semi-final, 3-0 (Northmen)