Yum! Brands, Inc., or Yum! and formerly Tricon Global Restaurants, Inc., is an American fast food company. A Fortune 500 corporation, Yum! operates the brands Taco Bell, KFC, Pizza Hut, and WingStreet worldwide, except in China, where the brands are operated by a separate company, Yum China. Prior to 2011, Yum! also owned Long John Silver's and A&W Restaurants.Based in Louisville, Kentucky, it is one of the world's largest fast food restaurant companies in terms of system units—with 45,084 restaurants (including 1,481 that are company-owned and 43,603 that are franchised) around the world in over 135 countries and territories.