I've put together a national DSD+ networks file from my own research and the RadioReference database.
I'm kickstarting the Cap+ and P25 sections.
Cap+, 3222, "Talk Wireless, St. Catherines -ON"
Cap+, 7434, "Fanshawe College, London -ON"
Cap+, 7630, "University of Western Ontario, London -ON"
Cap+, 7657, "Fleetcom Duplex -ON"
Cap+, 7751, "National Communications, Hamilton -ON"
Cap+, 8162, "Blue Mountain Resort -ON"
Cap+, 8205, "ACC -ON"
Cap+, 8284, "Schaeffler Canada, Stratford -ON"
Cap+, 8334, "Guelph City Services -ON"
Cap+, 8337, "McMaster, Hamilton -ON"
Cap+, 8504, "Eaton Center -ON"
Cap+, 8512, "Ritz Carlton Hotel -ON"
Cap+, 8600, "Oakville-Trafalgar Memorial Hospital -ON"
Cap+, 8601, "Erin Mills Town Center -ON"
Cap+, 8603, "Alpine Ski Club -ON"
Cap+, 8614, "Oakville Fort Plant -ON"
Cap+, 8633, "UofT -ON"
P25, 00001.001, "London PS -ON"
P25, 1484F.36D, "GTAA -ON"
P25, 148DE.00A, "Durham Region PS -ON"
P25, 458AD.229, "Genesee County -NY"
P25, 458AD.22A, "Orleans County -NY"
P25, 8D45F.36F, "RCMP -ON"
P25, BEE00.1AC, "MetroLinx -ON"
P25, BEE00.39E, "Hamilton PS -ON"
P25, BEE00.3C2, "Toronto PS -ON"
P25, BEE00.444, "Halton Region PS -ON"
P25, BEE00.4F1, "Niagara County PS -NY"
P25, BEE00.4F8, "Peel Region PS -ON"
P25, BEE00.644, "Chautauqua County PS -NY"
P25, BEE00.64C, "York Region PS -ON"
P25, BEE00.882, "Toronto Hydro -ON"