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Ronan Costello

Board Member



Ronan works as part of Twitter’s Public Policy team in Dublin. Public Policy represents Twitter with government and civil society. Ronan leads on Third-Party Outreach & Government Partnerships in EMEA and also oversees Twitter’s global Ads for Good programme.

Prior to joining Twitter, Ronan managed media and communications for the Union of Students in Ireland (USI), devising the communications strategies for a number of different campaigns. He has also worked for Áras an Uachtaráin (Office of the President of Ireland) and Trinity College Students’ Union.

Ronan holds a Bachelor of Laws from Trinity College Dublin, an MSc in Media and Communications Governance from the London School of Economics and Political Science. He’s also a qualified barrister.