Wikipedia has a list of fast food chains with number of locations and revenue: https://en.wikipedia.org/wiki/List_of_the_largest_fast_food_restaurant_chains htt

Wikipedia has a list of fast food chains with number of locations and revenue: https://en.wikipedia.org/wiki/List_of_the_largest_fast_food_restaurant_chains https://en.wikipedia.org/wiki/List_of_the_largest_fast_food_... By number of locations, the top 5 are: Mixue, McDonalds, Starbucks, Subway, KFC. By revenue (note sorting in that table seems to be sorting strings), the top 5 are: Starbucks, KFC, Burger King, McDonalds, Chick-Fil-A. I'm surprised to see Burger King ahead of McDonalds.