Denis O'Brien
Irish businessman
- Fame53.5
- Momentum18.2
- Wikipedia5.7K
Source-basedBreakout
Born 1958 · age 68
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Summary
Updated 2026-08-12
Denis O'Brien is an Irish billionaire businessman, and the founder and owner of Digicel. He was listed among the World's Top 200 Billionaires in 2015 and was Ireland's richest native-born citizen for several years. His business interests have also extended to aircraft leasing, utilities support (Actavo), petroleum, football, and healthcare. As former chairman of the Esat Digifone consortium, O'Brien was questioned by the Moriarty Tribunal, which investigated the awarding of a mobile phone licence to Esat, among other things.
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Low confidence
$3.1Bestimated · 2026
▲ 1%vs 2020
Forbes* estimated (interpolated between sourced years)
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Fame
Rising53.5
Composite of search demand, mentions, audience & graph footprint.
Score components
Momentum18.2
Historical5.9
Source confidence35.0
Completeness60.0
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Sources
- Denis O’Brien (Unternehmer)Low confidencewikipedia · de.wikipedia.org
- دينيس أوبراين (رجل أعمال)Low confidencewikipedia · ar.wikipedia.org
- دينيس اوبراين (رائد اعمال من جمهوريه ايرلاندا)Low confidencewikipedia · arz.wikipedia.org
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