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18th-Largest Ad Agency Signs PETA’s Great Ape Humane Pledge!

June 2013

Hill Holliday, the 18th-largest agency in the U.S. and part of the world’s third-largest advertising conglomerate, IPG, signed PETA’s Great Ape Humane Pledge, promising to leave chimpanzees and other great apes out of all future ad campaigns!