In-N-Out Secret Menu – In-N-Out Burger is a local American chain of fast-food restaurants with places primarily in California and the Southwest. On October 22, 1948, In-N-Out Burger was founded by Harry Snyder and Esther Snyder. It is currently headquartered in Irvine, California. It has developed outside Southern California into the rest of California and Utah, Nevada, Texas, Oregon, Colorado, and Arizona. In-N-Out Burger’s current owner is Lynsi Snyder, the Snyders’ only grandchild. As the In-N-Out Burger chain has grown, it has started numerous distribution centers and its original Baldwin Park location. The new facilities, located in California; Phoenix, Lathrop, Arizona; Draper, Utah; Dallas, Texas; and Colorado Springs, Colorado, will give likely future development into other parts of the country.