Portillo's Inc. is a fast-casual restaurant company specializing in Chicago-style street food across the United States. It owns and operates multichannel restaurants offering iconic menu items such as Chicago-style hot dogs and sausages, Italian beef sandwiches, char-grilled burgers, chopped salads, crinkle-cut and cheese fries, homemade chocolate cake, and the signature chocolate cake shake. The company supports diverse dining options including dine-in, carryout, delivery through its app and website as well as third-party platforms, and catering services. Additional features include a food truck named The Beef Bus, a ghost kitchen, and gift card sales. Portillo's Inc. also maintains two food production commissaries in Illinois to support its operations. Founded in 1963 and headquartered in Oak Brook, Illinois, Portillo's Inc. delivers high-energy dining experiences focused on quality and nostalgia in the quick-service restaurant segment of the consumer discretionary sector.