Blog Author: Sean Doherty
Sean Doherty

Sean Doherty

Head of Enterprise, Public Sector and IoT at Three
Sean is responsible for Three’s largest Enterprise customers and all Public Sector and Internet of Things (IoT) business. With more than 20 years of experience in the industry, his focus is to implement successful growth strategies and ensure the team he leads has a dynamic, challenging and rewarding working environment.

Prior to joining Three, Sean held senior sales roles at BT Ireland and had global responsibility for some of the largest accounts in BT’s portfolio. He joined O2 in 2010 and established the Multinational Sales team. There he led the integration with the Telefonica Group from a sales and customer service perspective. Sean was also at the forefront of large managed network service, hosted UC and managed devices deals for international enterprises, leading the way in transforming O2 to a Total Communications Supplier.

Since Three Ireland's acquisition of O2 Ireland in 2014, Sean has taken responsibility for all aspects of growing the Enterprise and Public Sector business, and has been heavily involved in the strategic direction and accelerated growth of the IoT business.

Latest Posts

Sean Doherty Three
Sean Doherty
On: 9 May 2017

Insights from Martin Wolf, Chief Economics Commentator of the Financial Times

The world is currently in a “zone of fragility” according to a leading economics commentator. What will this mean for Europe, for Ireland and for business? An audience of CEOs found out when Three Ireland invited the Financial Times’ Martin Wolf to share his insights. When the Chief Economics Commentator of the Financial Times talks, […]

Sean Doherty
On: 24 Mar 2016

Enterprise in Your Pocket

As featured in the Sunday Business Post So how is the enterprise mobility market shaping up generally? Enterprise mobility is growing exponentially and as a result we are seeing mobile application development becoming a huge focus for our clients. It’s no surprise that the market opportunity for business mobile applications was recently estimated at $100 […]


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