Citer is a French-based car rental company branded as National/Citer. It was established by Citroën in 1968 and was sold to Enterprise Holdings by PSA Peugeot Citroën in 2011.Citer has owned the Spanish car rental company Atesa since 1989 and was also sold to Enterprise. Since 1998 Citer was a National franchise holder and has 250 sites in France and a further 110 in Spain. In 2011 Citer and Atesa has a fleet of 30,000 vehicles.