 It has 35,000 people across 145 countries.Aegis' origins date back to the founding of the media agency Centrale d'Achats Radio, Affichage, Télévision (Carat) in France in 1966.Formerly listed on the London Stock Exchange and a constituent of the FTSE 100 Index, Aegis was acquired by the Japan-based advertising group Dentsu in March 2013.