Welcome to the Surprise Regional Chamber of Commerce serving the communities of Surprise, El Mirage, Youngtown, Sun City and Sun City West in the Northwest Phoenix Valley. Our region is a culturally and economically diverse area. Our businesses range from small owner operated businesses to large manufacturing, distributing and Solar Energy organizations. While using our app we encourage you to link to our member businesses through their listing in the Business Directory section. Our more than 500 member businesses are waiting to serve you.