SP Plus Corporation (SP Plus) is a provider of parking management, ground transportation and other ancillary services to commercial, institutional and municipal clients. SP Plus operates through six segments: Region One, Region Two, Region Three, Region Four, Region Five and Other. The Region One, Region Three and Region Five segments include the Company's operations in the United States, Canada and Puerto Rico. Region Two includes event planning and transportation, and the Company's technology-based parking and traffic management systems. Region Four includes its airport and transportation operations across the United States. The Company's Other segment consists of ancillary revenue not identifiable to a region and insurance reserve adjustments related to prior years. SP Plus markets its services under brands, such as SP+, SP+ Transportation, SP+ Facility Maintenance, SP+ Event Logistics, SP+ Security, Ambiance in Parking, Standard Parking, Central Parking and USA Parking.