January 16, 2019 – MediaPost (Global) — Interpublic, whose acquisition of Acxiom was the biggest deal of the year, led Madison Avenue holding
companies in terms of 2018 M&A deal value, according to an annual analysis by COMvergence.
In terms of overall deal activity, Dentsu was most active with 19 deals adding 2,337 employees, followed by WPP’s 12 deals, adding 1,528 employees.