This company is a royal figure among ice cream fans. American Dairy Queen is a leading franchisor of quick-service restaurants specializing in frozen treats, with more than 6,000 Dairy Queen outlets located throughout the US. Along with ice cream, its menu also includes burgers, hot dogs, chicken, salads, and sweet eats, including DQ cakes, pies, sundaes, cones, and Blizzard treats. The Dairy Queen chain was founded in 1938. American Dairy Queen is the domestic franchising arm of International Dairy Queen (IDQ), which also franchises DQ Orange Julius outlets and Karmelkorn popcorn stands. IDQ is owned by Warren Buffett's Berkshire Hathaway.