Enaire is public corporate entity company that designated by State to manage air transit services and Enaire has 5 control centers and 22 control towers for managing flights, therefore the number of flights that Enaire got per year is close to 1.8 million flights which makes Enaire become 1 of 4 largest flight navigation manager in Europe. For the controlling airspace that Enaire controls is 2,190,000 square kilometres which have 6 country parts in Europe, such as the Western Mediterranean, West Sahara, Balearic Islands and part of the North Atlantic. Moreover, Enaire holds 100% of Aena S.A. that manage 46 airports and 2 heliports in Spain, such as Adolfo Suárez Madrid-Barajas and also Aena S.A. has a share in 15 airports management in UK (United Kingdom), Colombia and Mexico. Recently, on 5 July 2014, the public corporate entity Aeropuertos Españoles y Navegación Aérea (Aena) changed name to Enaire(ENAIRE, 2015)