I don't think Canada is particularly nationalistic compared to other countries. Many Canadian subsidiaries of US Corporations put a maple leaf on their logo to

I don't think Canada is particularly nationalistic compared to other countries. Many Canadian subsidiaries of US Corporations put a maple leaf on their logo to specifically distinguish it from the US company, for example McDonald's Canada has a maple leaf. But it's not universal, and it's probably more common to use the unaltered American logo (see Walmart Canada, Costco Canada, Whole Foods Canada, UHAUL Canada, etc). The purpose it serves is not really one of nationalism but similar to how Canadian companies use the .ca domain vs the .com domain. As other commenters point out, you really can't compare how flag-obsessed Canadians are to Americans. Just driving across the boarder from Vancouver into Washington and you immediately see larger than life flags which are really uncommon here. And when you do see a Canadian flag it is often accompanied by an American one.