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Yvonne O'Brien Group Chief Insight & Data Officer HAVAS MEDIA GROUP
Kerin O'Connor Chief Executive THE WEEK
Jon O'Donnell MD Commercial ESI MEDIA
Jeremy O'Grady Editor-in-Chief THE WEEK
Vivienne O'Hanlon Student BA Advertising LONDON COLLEGE OF COMMUNICATION
Rory O'Neill Vice President Brand & Product Marketing SAMSUNG ELECTRONICS
Lara O'Reilly Senior Editor BUSINESS INSIDER
Andrew O'Sullivan Head of Marketing CASALL
Tanya O'Sullivan Head of Airtime & Ad Operations CHANNEL 4
Jonathan Oliver Global CCO UNLOCKD
Nkiru Olumide-Ojo Chief Marketing Officer STANBIC IBTC
Sedef Onar Chief Talent Officer 72ANDSUNNY
Balder Onarheim Co-Founder COPENHAGEN INSTITUTE OF NEUROCREATIVITY
Andy Orrick Chief of Stuff (Creative & Business Development) RATTLING STICK
Olly Osborne Head of Social, Europe VICE
Steven Overman Global CMO, President Consumer & Film Division KODAK