Denis O'Brien

Denis O'Brien

Denis O'Brien (#1363)

Global Rank #1363
Country Rank #6
Country Ireland

If you just focus on risk, you can't do a thing.

  • $ 3 B
  • Telecom
  • Ireland
  • M
  • 68 Years

Snapshot

Quick Facts

Global Rank #1,363
Country Rank #6
Net Worth $3.1B
Previous Worth $3.1B
Worth Change +$0.0B
Country Ireland
Industry Telecom
Age 68 Years
Gender M
Worth As Of May 4, 2026
Residence Dublin, Ireland
Citizenship Ireland

Profile Data

Personal Stats

Age 68
Source Of Wealth Telecom, Self Made
Residence Dublin, Ireland
Citizenship Ireland
Marital Status Married
Children 4
Education Master of Business Administration, Carroll School of Management
Net Worth Change +$0.0B +0.0% from previous worth
Previous Net Worth $3.1B
Current Net Worth $3.1B

Worth as of May 4, 2026

About Me

Denis O'Brien founded Digicel, a mobile phone network provider that operates in the Caribbean, Asia Pacific and Central America. O'Brien made a fortune selling his Irish mobile outfit, Esat Telecom Group, to British Telecom Group in 2000 for $2.8 billion. He has investments in energy companies and resorts on the Iberian Peninsula. In 2019, O'Brien sold his stake in Independent News and Media to Mediahuis, losing hundreds of millions of Euros on his investment. O'Brien made another media industry exit in 2021 by selling Communicorps, a radio company, to Bauer Media

Achievements

Forbes List Highlights

A snapshot of the list placements and rankings connected to Denis O'Brien.

#1376
Billionaires (2026)

Insights

Did You Know?

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.

Wealth Growth

Net Worth Growth Over Time

Tracking Denis O'Brien's net worth journey over the years, highlighting key growth phases and financial milestones.

Worth Trend Net Worth Growth
Period Change Worth Movement
Current Net Worth: $3.1B (May 4, 2026)