Current owner: Restaurant Brands International, Canadian restaurant group
After opening up shop in Miami in 1954, Burger King went on to become today's second largest hamburger chain in the United States, after McDonald's.
In the decades after its founding, Burger King was owned by several brands, including the Pillsbury Company, which was eventually acquired by the British company Grand Metropolitan and then again by Guinness, the Irish brewer.
Burger King passed through a few more hands before landing at the Canadian doughnut and fast-food chain Tim Hortons, prompting the creation of a new parent company, Restaurant Brands International.