Bartle Bogle Hegarty and Abbott Mead Vickers BBDO also picked up two gold awards each.
BBH’s wins were for Barnardo’s "life story", which won best charity in the film sector, and for Google’s "say it to get it", which picked up the best poster campaign.
AMV’s Met Police "tube" campaign triumphed in the radio category for best writing, and the V&A Museum of Childhood’s "bear" won in press for best art direction.
In film, McCann Manchester was the only other agency to pick up a gold for its Aldi "tomato sauce" TV work, which won best campaign or series.
Other gold winners include Rapier for Yell in design, craft and typography, DDB UK for Bud Ice in direct, and Grey for the British Heart Foundation in experiential.