Mindshare has been awarded Media Network of the Year at the 2019 Cannes Lions International Festival of Creativity.
The GroupM network succeeds sister shop MediaCom, which won the accolade last year but slipped to third place in 2019.
Publicis Groupe’s Starcom is second place in this year’s awards and MediaCom third.
Nick Emery, global chief executive of Mindshare, said: "Mindshare is a team sport and never is that more true than when the agency is rewarded for its work in awards shows. We have brilliant teams all over the world who are relentlessly focused on driving innovation for our clients and these awards and the title of Media Network of the Year are proof of this – I couldn’t be more proud of the Mindshare family."