42. Marco’s Pizza
Despite the fact that Marco’s Pizza didn’t crack QSR’s top 50 last year, since then, it expanded by 97 units. Nowadays, the pizza chain has 867 locations across America. Not to mention, there are also locations in Puerto Rico and the Bahamas now.
Marco’s Pizza
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41. Whataburger
As you could guess from the name, this chain specializes in hamburgers. It started off in San Antonio, Texas back in 1950 and has since expanded to 824 locations in Texas, New Mexico, Arizona, and other Southern states in the U.S.
Whataburger
