Although it's still a quasi-secret, Toronto's startup ecosystem is thriving. There is still room for improvement, particularly the need for more capital and more support from the city.
Lots of good things happening in Toronto: WattPad, ClearFit, Top Hat Monocle, CrowdCare, Interaxon. For more insight, check out this infographic: http://www.markevans.ca/hot-startups/