The 2013 'The Bear and the Hare' Christmas campaign, picked up a Gold Creative Effectiveness Lion and was the only UK work to be honoured in the ceremony.
Last year UK agencies won three Lions.
In 2013 Adam & Eve/DDB, alongside Manning Gottlieb OMD, won a Creative Effectiveness Lion for 'From Crying To Buying: How John Lewis Harnessed The Selling Power Of Emotion', its ongoing work for John Lewis.
Creative Effectiveness Lions were not awarded in different colours until this year. Instead, a Creative Effectiveness Lion was equivalent to a Gold in other categories.
The Grand Prix in Creative Effectiveness went to Forsman & Bodenfors for 'The Live Test Series' for Volvo Trucks.
The US won the most Lions in the Creative Effectiveness awards including: a Gold Lion for 'This is Wholesome' for the Mondelez brand Honeymaid by Droga5 New York; two Silvers and two Bronze Lions.