They play in the Eastern Ontario Junior Hockey League.

The Almonte Thunder were granted expansion into the Eastern Ontario Junior Hockey League in 2009.

The Thunder filled the void in the league left when the Carleton Place Kings were promoted to the Central Junior Hockey League.

Initially, the league was to downsize to twelve teams (one feeder club for each Tier 1 team), however it reduced to 16 teams, eliminating 6 of the current franchises, including the Akwesasne Wolves, Almonte Thunder, Gananoque Islanders, Gatineau Mustangs, Morrisburg Lions, and Shawville Pontiacs.

This Ontario ice hockey team-related article is a stub.