The award followed the WPP Group-owned Grey Global Group scooping eight trophies in seven categories at the awards, which celebrate proven communication effectiveness across Europe, including FMCG, automotive, health, beauty and retail for brands such as Pantene, Sensodyne, Fairy, Seat and Lenor.
Grey London won the gold for GlaxoSmithKline Sensodyne "Recommended by dentists" campaign, which boosted sales by 20%.
Grey & Trace Madrid scooped the silver for P&G Fairy "Fairy value tips", which reached its highest share level to date of 44.4%, while a bronze went to Grey London for P&G Lenor "The pleasure is all yours".
Further bronze awards were taken by Grey Worldwide Dusseldorf, Grey Worldwide Warsaw and Grey Worldwide India.
Carolyn Carter, president and CEO of Grey Global Group EMEA, said: "These awards were an outstanding tribute to our client partnership and our shared success in building brands.
"They represent a winning combination of inspiration, imagination and integration that connects consumers to brands and produces results."
The competition is organised by the European Association of Communications Agencies.
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