Jack in the Box Inc. (NASDAQ: JACK), founded and headquartered in San Diego, California, is a restaurant company that operates and franchises Jack in the Box®, one of the nation's largest hamburger chains with approximately 2,200 restaurants across 22 states, and Del Taco®, the second largest Mexican-American QSR chain by units in the U.S. with approximately 600 restaurants across 16 states.