Exclusive Data from COMvergence on Media Agency Billings Final 2021 Reveals Top Global Agency Network and Group Winner
Raluca Dumitrescu2022-07-04T10:24:13+01:00FRANCE - June 29, 2022 - COMvergence has issued its latest global billings rankings report based on Final 2021 media agency and group billings – including digital media spends. OMD Remains the Leading Global Media Agency Network and GroupM the Largest Group in 2021.

