Karl Duffy

Karl Duffy

Head of Enterprise and Public Sector at Three
Born and raised in Dublin, Karl graduated from Smurfit Business School in 2008. Influenced by the economic downturn, he moved to London to start working for BT Group, specifically in the Global Services Division.

Duffy worked as a strategist in the Strategy President’s Office, mainly looking at expanding BT’s global footprint. From there, he acted on advice from his CFO to get into direct top-line bottom-line affecting work.

His initial foray into management was as a delivery director on BT’s contracts with the NHS, before moving into the Openreach Division and latterly returning to Global Services to work in Global Accounts where he looked after some of BT’s largest Global customers.

Recently he returned to Ireland with his wife and new-born daughter to take up his post with Three.

Outside of work, Duffy is a blackbelt in Taekwondo and was formerly a member of the Irish team. He is also the co-founder and current non-executive Chair of the London Irish Business Society, a business networking organisation. He has a keen interest in sports, particularly rugby and jogging.

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