The Maple Leaf Fibre cable system consists of a terrestrial segment between Montréal, Ottawa, and Kingston, and a submarine segment through Lake Ontario between Kingston and downtown Toronto.

The Maple Leaf Fibre cable system is developed by Maple Leaf Fibre Ltd., a joint venture of Crosslake Fibre ULC based in Toronto, Metro Optic Inc. based in Montréal, Quebec, and Utilities Kingston based in Ontario.