There are a further four nods for UK agencies in a shortlist of 26.
Grey London is nominated for "500 years of stories" for Tate, MullenLowe for Persil's campaign "Free the kids", Engine for the "Missing type" campaign for National Blood Week, and McCann with its "Survival" billboard for Xbox game Rise of the Tomb Raider.
There are seven nods for US agencies: Venables Bell & Partners (San Francisco); 180LA (Santa Monica); BBH New York, Deutsch (New York); David (Miami); BBDO (New York) and Goodby Silverstein & Partners (San Francisco).
The rest of the list is made up of entrants from Australia, Brazil, Canada, France, Germany, India, New Zealand, Spain and Sweden.