WPP’s GroupM was the top media agency network

COMvergence tracked around $22.2 billion in media account moves and retentions in 2020.

COMvergence tracked around $22.2 billion in media account moves and retentions in 2020.
Mediacom, Comvergence, Getty Images

By Erik Oster

33 mins ago

In a year where new business was as important as ever to withstand the financial impacts of the pandemic, there was a lot more opportunity for media agencies to succeed than their creative counterparts.