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

World Billionaires List Ireland Billionaires Telecom

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)