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Group Head of Client & Growth, Omnicom Media Group

Sinead Manly


Sinéad has over 15 years of experience in marketing and advertising. She forged a career in Marketing and Sales within the FMCG category working at Mondelez, creating award-winning campaigns. She was in fact a client of PHD’s during this time and this is where her passion for media and effectiveness came to life.

Sinéad joined PHD in 2018 as a Group Client Director working across Auto, Government and FMCG clients. In 2020, after successfully pitching and winning Red Bull and Diageo, Sinéad was promoted into the position of Business Director. Here she led the transition of one of Ireland’s top media spenders, Diageo, delivering exceptional results despite a volatile alcohol market, and won numerous industry awards.

More recently, she proudly took on the role of Group Head of Client and Growth across OMG, Omnicom Media Group.




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