Made-to-order hamburgers are in and franchising is out at In-N-Out Burger. The company owns and operates about 250 popular burger joints located primarily in California. The chain's menu features just four basic items -- hamburgers, cheeseburgers, the Double-Double (two patties and two slices of cheese), and french fries -- but patrons are free to customize how their hamburger is prepared. The chain famously does not use microwaves, heat lamps, or freezers, and it has no franchise operators. In-N-Out does offer on-site catering for parties and events with its In-N-Out Cookout Trailers. Harry and Esther Snyder started the family-owned company in 1948.