About Restaurant Brands International Inc. Restaurant Brands International is one of the world's largest quick service restaurant companies with approximately $23 billion in system sales and over 18,000 restaurants in 100 countries. Restaurant Brands International owns two of the world's most prominent and iconic quick service restaurant brands – Tim Hortons ® and BURGER KING ®. These independently operated brands have been serving their respective guests, franchisees and communities for over 50 years.