Denis O'Brien
Dublin, Ireland
Master of Business Administration, Carroll School of Management
Ireland
telecom, Self Made
$4,100,000,000
504
#504 Billionaires 2019
Denis O'Brien runs and owns 94% of Digicel, a mobile phone network provider that operates in the Caribbean, Asia Pacific and Central America.Following the 2010 earthquake in Haiti he funded the restoration of Port-au-Prince's Iron Market and his Digicel Foundation built 150 schools. O'Brien got his big break selling his Irish mobile outfit, Esat Telecom Group, to British Telecom Group in 2000 for $2.8 billion. He has investments in media, healthcare and the PGA Catalunya and Quinta do Lago resorts on the Iberian peninsula.
O'Brien once sold horse pills. O'Brien, whose mother was a political activist, cofounded the Front Line Defenders to protect and provide emergency support for human rights activists in danger.
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