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.

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.

Starbucks Corporation is an American multinational chain of coffeehouses and roastery reserves headquartered in Seattle, Washington. It was founded in 1971 by Jerry Baldwin, Zev Siegl, and Gordon Bowker at Seattle's Pike Place Market initially as a coffee bean wholesaler. Starbucks was converted into a coffee shop serving espresso-based drinks under the ownership of Howard Schultz, who was chief executive officer from 1986 to 2000 and led the aggressive expansion of the franchise across the West Coast of 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.

Panda Express is an American fast food restaurant chain that specializes in American Chinese cuisine. With over 2,400 locations, it is the largest Asian-segment restaurant chain in the United States, and is mainly located in North America and Asia. Panda Express restaurants were traditionally located in shopping mall food courts, but the chain now operates units in many other environments and formats, including stand-alone restaurants, as well as universities, casinos, airports, military bases, amusement parks and other venues.

Zaxbys is an American chain of fast casual restaurants offering chicken fingers, sandwiches, chicken wings, appetizers, and salads. The chain operates primarily in the Southern United States and has more than 900 locations. Most Zaxbys restaurants are owned and operated through franchising.

Domino's Pizza, Inc. is an American multinational pizza restaurant chain founded in 1960. The corporation is Delaware-domiciled and headquartered at the Domino's Farms office park in Ann Arbor Township, near Ann Arbor, Michigan. As of 2018, Domino's had approximately 15,000 stores, with 5,649 in the United States, 1,500 in India, and 1,249 in the United Kingdom. Domino's has stores in more than 83 countries and 5,701 cities worldwide.

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.