Schlotzsky's is an American franchise chain of restaurants, specializing in sandwiches and pizza. The company is headquartered in Atlanta, Georgia. Schlotzsky's has over 310 franchised and company-owned locations throughout the United States. Most locations are in the south and southwestern United States, but the company is expanding into areas across the country, particularly the north and southeast.

KFC Corporation, doing business as KFC, is an American multinational fast food restaurant chain specializing in Southern fried chicken and chicken sandwiches. Headquartered in Louisville, Kentucky, it is the world's second-largest restaurant chain after McDonald's, with over 31,980 locations globally in 150 countries, as of September 2025. The chain is a subsidiary of Yum! Brands, a restaurant company that also owns the Pizza Hut and Taco Bell chains.

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.

Arby's Restaurant Group, Inc. doing business as Arby's is an American fast food sandwich restaurant chain with more than 3,300 restaurants. The flagship property of Inspire Brands, it ranked third in systemwide sales in the United States in the quick-service and fast-casual restaurant industries in 2012, behind Subway and Panera Bread. In October 2017, Food & Wine called Arby's "America's second largest sandwich chain ".

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.

Hardee's Restaurants LLC is an American fast-food restaurant chain operated by CKE Restaurants Holdings, Inc. ("CKE") with locations primarily in the Southern and Midwestern United States. The company has evolved through several corporate ownerships since its establishment in 1960 in North Carolina.

Captain D's, LLC. is an American fast casual restaurant chain that specializes in seafood and is headquartered in Nashville, Tennessee. The chain was founded as Mr. D's Seafood and Hamburgers by Raymond L. Danner Sr. on August 15, 1969, in Donelson, Tennessee. The chain is currently owned by private-equity firm Centre Partners. Captain D's currently has more than 500 locations in the United States.

Taco Bell Corporation is an American multinational chain of fast food restaurants founded in 1962 by Glen Bell (1923–2010) in Downey, California. Taco Bell is a subsidiary of Yum! Brands, Inc. The restaurants serve a variety of Mexican-inspired foods, including tacos, burritos, quesadillas, nachos, novelty, and specialty items, and a variety of "value menu" items. As of 2023, Taco Bell serves over two billion customers each year, at 8,212 restaurants, more than 94 percent of which are owned and operated by independent franchisees and licensees.

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.