The 20 Most Successful Fast Food Chains Of All Time In America

17) Dairy Queen (17 of 20)

17) Dairy Queen (17 of 20)

The company has recently opened several new franchises and now has over 7,000 locations around the world. It has recently released a new line of oven-baked sandwiches, which Subway has accused vigorously, and claims that the company has ripped of their products.