The Canadian site, The Hub, has an analysis that shows an exodus of high earners from Canada:

Canadian net emigration…  reached 65,372 in 2024-25, the highest level in the 50-year data series…

According to Bank of Canada research… roughly 40 percent of Canadians who would rank in the top 1 percent of earners have emigrated south, along with 30-50 percent of the next nine percentiles. Canadian-born individuals in the U.S. are more educated than native-born Americans, earn substantially more, and cluster in top income brackets. The study finds these top earners account for three-quarters of the Canada-U.S. GDP per adult gap and up to two-thirds of the labour productivity gap.

This includes what The Hub calls a “Startup Exodus”:

The pattern extends to entrepreneurship. Leaders Fund research analyzing nearly 3,000 venture-backed startups founded by Canadians between 2015 and 2024 found the U.S. went from producing 11 times more high-potential startups than Canada in 2015 to 45 times more in 2024. Nearly half of Canadian founders who raised over $1 million in 2024 were based in the U.S., versus one-third based in Canada, and the U.S. share has steadily grown since 2018. Canadian founders operating south of the border raise nearly twice as much capital as those who stay.