Dennis O'Brien
Denis O'Brien (born 1958) is an Irish businessman, best known as the founder and owner of the telecommunications company Digicel, which he established in 2001. He earlier founded the radio group Communicorp and Esat Telecom, which he sold to British Telecom in 2000, and his broader business interests have spanned aircraft leasing, petroleum, and healthcare. His estimated net worth is around $4.3 billion.
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