High Quality Content by WIKIPEDIA articles! Whataburger is a privately held, regional restaurant chain specializing in hamburgers. The company, founded by Harmon Dobson, opened its first restaurant in Corpus Christi, Texas in 1950. Today, Whataburger Restaurants, LP is still owned and operated by the Dobson family and has nearly 700 locations in the United States (Texas, Arizona, New Mexico, Oklahoma, Louisiana, Arkansas, Mississippi, Alabama, Florida, and Georgia).