McDonald's Corporation operates and franchises restaurants under the McDonald's brand in the United States and internationally. It offers food and beverages, including hamburgers and cheeseburgers, various chicken sandwiches, fries, shakes, desserts, sundaes, cookies, pies, soft drinks, coffee, and other beverages; and full or limited breakfast, as well as sells various other products during limited-time promotions. The company owns and operates under various structures comprising conventional franchise, developmental license, or affiliate. McDonald's Corporation was founded in 1940 and is based in Chicago, Illinois.

Restaurant Brands International Inc. operates as a quick-service restaurant company in Canada, the United States, and internationally. It operates through four segments: Tim Hortons (TH), Burger King (BK), Popeyes Louisiana Kitchen (PLK), and Firehouse Subs (FHS). The company owns and franchises TH chain of donut/coffee/tea restaurants that offer blend coffee, tea, and espresso-based hot and cold specialty drinks; and fresh baked goods, including donuts, Timbits, bagels, muffins, cookies and pastries, grilled paninis, classic sandwiches, wraps, soups, and other food products. It is also involved in owning and franchising BK, a fast-food hamburger restaurant chain, which offers flame-grilled hamburgers, chicken and other specialty sandwiches, French fries, soft drinks, and other food items; and PLK quick service restaurants that provide Louisiana-style fried chicken, chicken tenders, fried shrimp and other seafood, red beans and rice, and other regional items. In addition, the company owns and franchises FHS quick service restaurants that offer meats and cheese, chopped salads, chili and soups, signature and other sides, soft drinks, and local specialties. The company was founded in 1954 and is headquartered in Toronto, Canada.

Portillo's Inc. owns and operates fast casual restaurants in the United States. The company offers Chicago-style hot dogs and sausages, Italian beef sandwiches, char-grilled burgers, chopped salads, crinkle-cut French fries, homemade chocolate cakes, and chocolate cake shake. It offers its products through its website, application, and certain third-party platforms. Portillo's Inc. was founded in 1963 and is based in Oak Brook, Illinois.

Biglari Holdings Inc., through its subsidiaries, primarily operates and franchises restaurants in the United States. It owns, operates, and franchises restaurants under the Steak n Shake and Western Sizzlin names. The company also engages in underwriting commercial trucking insurance; selling physical damage and non-trucking liability insurance to truckers; and providing property and casualty insurance. In addition, it operates oil and natural gas properties in the Gulf of Mexico; and publishes and sells magazines under the MAXIM brand name. Further, it licenses media products and services; and engages in the investment activities. The company was formerly known as The Steak n Shake Company and changed its name to Biglari Holdings Inc. in April 2010. Biglari Holdings Inc. was founded in 1934 and is based in San Antonio, Texas.

Nathan's Famous, Inc., together with its subsidiaries, operates in the foodservice industry. The company owns and franchises restaurants under the Nathan's Famous brand name, as well as sells products bearing the Nathan's Famous trademarks through various channels of distribution. It also has license agreements for the manufacture, distribution, marketing, and sale of Nathan's Famous branded hot dogs and sausages in refrigerated consumer packages to be resold through retail channels, such as supermarkets, groceries, mass merchandisers, and club stores; and other Nathan's Famous branded refrigerated meat products in consumer packages to be resold through retail channels. In addition, the company has license agreements to manufacture Nathan's Famous branded hot dog and sausage products in bulk for use in the food service industry; for supplying Nathan's Famous natural casing and skinless hot dogs in bulk for use in the Nathan's Famous restaurant system; to manufacture proprietary spices; to produce and distribute pickles; to produce and sell French fries and onion rings for retail sale; and to produce and sell miniature bagel dogs, franks-in-a-blanket, mozzarella sticks, other hors d'oeuvres, and bottled mustard through club stores, supermarkets, and other retail food stores. Further, the company sells Nathan's products directly to foodservice operators or to various foodservice distributors, as well as provides Arthur Treacher's brand fish fillets. Nathan's Famous, Inc. was founded in 1916 and is based in Jericho, New York.

Red Robin Gourmet Burgers, Inc., together with its subsidiaries, develops, operates, and franchises casual-dining restaurants, in North America and one Canadian province. Its restaurants primarily offer burgers and pizza, appetizers, salads, soups, other entrees, desserts, wings, milkshakes, alcoholic and non-alcoholic specialty drinks, cocktails, wine, and beers. The company was founded in 1969 and is based in Englewood, Colorado.

Ark Restaurants Corp., through its subsidiaries, owns and operates restaurants and bars in the United States. It operates restaurants in New York City; Washington, D.C.; Las Vegas, Nevada; Atlantic City, New Jersey; Florida; and Alabama, as well as fast food concepts and catering operations. The company was incorporated in 1983 and is based in New York, New York.

Carrols Restaurant Group, Inc., through its subsidiaries, operates restaurants in the United States. It operates quick service restaurants as a franchisee under the Burger King and Popeyes brands in 23 Northeastern, Midwestern, Southcentral, and Southeastern states. The company was founded in 1960 and is headquartered in Syracuse, New York.