Whataburger is an American regional fast food restaurant chain, headquartered and based in San Antonio, Texas, that specializes in hamburgers. Founded by Harmon Dobson and Paul Burton, it opened its first restaurant in Corpus Christi, Texas in 1950. Family-owned by the Dobsons until 2019, the chain is now managed by the private equity firm BDT Capital Partners; the Dobson family still holds a small stake.