Established in 1953, Sonic Corp. operates one of the largest chains of drive-in restaurants in the United States. Located in Nowata, Okla., Sonic Drive-In specializes in speedy carhop services offering various made-to-order fast food items, including American classics, signature menu items and more. It serves a menu featuring a diverse selection of sandwiches, salads and frozen treats, in addition to burgers, fries and sodas. Sonic Drive-In further offers toaster sandwich and footlong quarter pound conveys, besides a variety of frozen favorites desserts and fountain favorites drinks. It is recognized as one of America's top companies by publications including Forbes and Entrepreneur and has ranked in QSR Magazine's list of top companies in terms of system wide sales.