Shake Shack Inc. owns, operates, and licenses Shake Shack restaurants (Shacks) in the United States and internationally. Its Shacks offers hamburgers, hot dogs, chicken, crinkle cut fries, shakes, frozen custard, beer, wine, and other products. As of December 29, 2021, it operated 369 Shacks, including 218 domestic company-operated Shacks, 25 domestic licensed Shacks, and 126 international licensed Shacks.