New York, December 18, 2019 – GroupM (USA) – GroupM, WPP’s media investment group, will close 2019 with more than $50B in annual billings for the first time, and three GroupM agencies in the top five of global media agency networks based on billings, according to COMvergence’s projections.

Mindshare, MediaCom and Wavemaker rank number two, four and five, respectively, with MediaCom posting the highest growth among all agencies in the top ten over the last year at +6.8 percent.

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