(photo 1960s Pizza Hut Matchbooks)...Pizza Hut is an American restaurant chain and international franchise, known for pizza and side dishes. It is now corporately known as Pizza Hut, Inc. and is a subsidiary of Yum! Brands, Inc., the world's largest restaurant company. In 2015, the company had more than 6,000 Pizza Hut restaurants in the United States, and 5,139 store locations in 94 other countries and territories worldwide. Pizza Hut has a total of 11,139 branches worldwide.