Aéroports de Paris SA designs, builds, and runs commercial airports. The company is responsible for the organization, operation, and development of civilian air transport in the Île-de-France region. It operates through the following business segments: Aviation, Retail & Services, Real Estate, International & Airport Developments, and Other Activities. The Aviation segment includes goods and services that are involved in handling aircraft or flows of passengers in the group's operating areas. The Retail & Services segment involves the products and services that are offered to customers in the commercial retail areas, property leasing in the terminals, parks, and industrial services or access. The Real Estate segment comprises the goods, property leasing services, and related commercial retail activities, with the exclusion of operating leases within the airport terminals. The International & Airport Developments segment includes all subsidiaries and holdings operating in the airport management field. The Other Activities segment consists of various activities carried out by the group's subsidiaries such as security services, airport management or design, and telephony. The company was founded on October 24, 1945 and is headquartered in Paris, France.