Burger

McDonald's Corporation, doing business as McDonald's, is an American multinational fast food restaurant chain. As of 2024, it is the largest by revenue and second-largest by number of locations in the world, behind the Chinese chain Mixue Ice Cream & Tea.

Krystal is an American regional fast food restaurant chain headquartered in Dunwoody, Georgia, with restaurants in the Southeastern United States and Puerto Rico. It is known for its small, square hamburgers, called sliders in places other than the Southeast, with steamed-in onions. Krystal moved its headquarters from Chattanooga, Tennessee, where it had been based since 1932, to the Atlanta suburb of Dunwoody in early 2013.

Freddy's LLC, doing business as Freddy's, is an American fast-casual restaurant chain based in Wichita, Kansas. Its menu includes steakburgers, Vienna Beef hot dogs, and chicken sandwiches along with frozen custard and specialty sundaes.

Wendy's International, LLC, is an American international fast food restaurant chain founded by Dave Thomas on November 15, 1969, in Columbus, Ohio. Its headquarters moved to Dublin, Ohio, on January 29, 2006. On September 29, 2008, the company merged with Triarc, the publicly traded parent company of Arby's. As of December 31, 2018, Wendy's was the world's third-largest hamburger fast-food chain, following McDonald's and Burger King.