Welcome to our site, here in this content you will get to know more about Rooftop Restaurants Oak Brook. A small fraction of Oak Brook, an Illinois village, is in Cook County while the rest is in DuPage County. There were 8,163 people there as of the 2022 census. Numerous businesses and organizations, including Ace Hardware, Blistex, Federal Signal, CenterPoint Properties, Sanford L.P., TreeHouse Foods, and Lions Clubs International, have their corporate offices in this Chicago suburb. It was once the corporate headquarters for Ferrara Candy and McDonald’s (now both moved to Chicago).