Central Parking System is one of the largest providers of parking services. It offers design consultation, toll-road collection, parking meter enforcement and shuttle services. The company operates an airport division that provides taxi-starter and commercial vehicle control, self-parking management, shuttle operation, parking consulting and luggage cart concession services. It maintains Parking Resource Group, which is a division that offers planning and demand analysis, site selection, functional design and revenue control services. Central Parking System also contributes various community organizations, including the United Way and the American Diabetes Association. It operates more than 3,000 parking facilities in over 35 U.S. states, the United Kingdom, Canada, Puerto Rico, Germany, Mexico, Peru, Poland, Spain, Switzerland, Venezuela and Greece. Central Parking System maintains a location in Milwaukee.