John Wren
Chief Executive Officer at Omnicom Group
Others working in Omnicom Group
Guy Hanton
Chief Information Officer - APAC at Omnicom Group
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Wayne Moy
Deputy Chief Information Officer, Asia/Pacific at Omnicom Group
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Marios Damianides
Chief Information Technology Risk Officer at Omnicom Group
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Rosie Hong
Managing Director at Omnicom Group
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