The Canadian Brewer Spectrometer Network is the operated by Environment and Climate Change Canada. They operate 8 sites across Canada (Alert - Nunavut, Churchill - Manitoba, Euerka - Nunavut, Goosebay - Newfoundland Labrador, Resolute Bay - Nunavut, Saturna - British Columbia, Stony Plain - Alberta, and Toronto - Ontario) and 2 international site in collaboration with NOAA (Mauna Loa - Hawaii and South Pole)

Toronto is the home of the Canadian Triad Brewer that consist of Brewer #145, #187 and #191.