What brands are under QSR?

Written by Editorial Team | Last Updated: August 2026

QSR—an acronym for Quick Service Restaurant—often refers to restaurant holding companies or master franchise operators managing fast-food brands, most notably Restaurant Brands International (RBI). RBI is a massive global quick-service restaurant conglomerate that owns four iconic, independent fast-food brands: Burger King (famous globally for flame-grilled Whoppers), Tim Hortons (the Canadian staple known for coffee, donuts, and baked goods), Popeyes Louisiana Kitchen (celebrated for signature fried chicken and spicy chicken sandwiches), and Firehouse Subs (specializing in hot specialty submarine sandwiches). Each of these brands operates thousands of franchised and company-owned restaurant units across dozens of countries, serving millions of consumers daily with quick-service convenience, value-driven menus, and localized product innovations tailored to international markets.

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