Depending on how you count, Subway is far and away the largest chain in the US with about 23K stores. McDonalds is a distant second at about 14K, Starbucks is third with 11K, Burger King follows at about 7K then Wendy’s at almost 6K. However, by annual revenue, McDonald’s is way ahead with $31 billion, then comes Subway with $10 billion, BK with $9 billion, SB with $8.5, and Wendy’s with $8.4.