White Castle System Inc is a family run fast food hamburger chain in America. The company was founded by Walter Anderson and E. W. Billy in September 13, 1921 with its headquarters in Columbus, Ohio, United States. The first fast food hamburger chain serves Midwestern United States and the New York metropolitan area including Illinois, Indiana, Kentucky, Michigan, Missouri, New Jersey, Ohio, Pennsylvania, Tennessee and Wisconsin. The products offered in White Castle System restaurants are sliders, sides, breakfast items and drinks including hamburgers, French fries, onion rings and dairy desserts. The companies menu also includes reheating and frozen sliders.