Founded by John Galardi in 1961 with a single hot dog stand in Wilmington, Calif., Wienerschnitzel (www.wienerschnitzel.com) is a bona fide pioneer of the quick-service food industry. The world’s largest hot dog chain serves more than 120 million hot dogs annually and is famous for its delicious proprietary chili recipe. Based in Irvine, Calif., Wienerschnitzel operates or franchises 351 stores in 10 states and Guam. It is part of Galardi Group, which is also the parent company of The Hamburger Stand and Tastee Freez LLC.