Top advertising agencies in the world
With the mergers and acquisitions that commenced in the US in the 1960s and spurted in the 1970s under the banner of Saatchi and Saatchi, the following five global conglomerates are widely acknowledged as the largest.
- WPP Group, London (estimated £12.23 billion revenue in 2015)
- Omnicom Group, New York City (estimated $15.13 billion revenue in 2015)
- Publicis Groupe, Paris (estimated €9.6 billion revenue in 2015)
- Interpublic Group, New York City (estimated $7.6 billion revenue in 2015)
- Dentsu, Tokyo (estimated ¥1.68 trillion revenue in 2015)
