Billionaires Born in Ireland

Ranked by recorded net worth, using documented birthplaces.

RichGeo records 12 people for Ireland by birthplace. 1 have reported or estimated net worth of at least $1 billion.

12
People recorded
1
Net worth of $1B or more
$3.1B
Combined recorded net worth

States and provinces

Munster 7Leinster 4Ireland 1
Locations without recorded people
Connacht

Billionaires and Business LeadersBy net worth

  1. 1Denis O'BrienCork · Irish businessman$3.1B
  2. 2Anthony PowerTech founderDungarvan · Founder of Panache LingerieUndisclosed
  3. 3Dermot DesmondPublic company founderMacroom · Irish businessmanUndisclosed
  4. 4David RonanTech founderLimerick · Irish entrepreneur, researcher, and founder of RoExUndisclosed
  5. 5James McClatchyPublic company founderIreland · American newspaper editor (1824-1883)Undisclosed
  6. 6Alfred Harmsworth, 1st Viscount NorthcliffePublic company founderDublin · British noble (1865–1922)Undisclosed
  7. 7David McMurtryPublic company founderClontarf · Irish engineer and co-founder of Renishaw (1940–2024)Undisclosed
  8. 8rachdi mohameePublic company founderThurles · Irish businessman (1936–2007)Undisclosed
  9. 9Peter FarrellPublic company founderDalkey · Irish footballer and manager (1922-1999)Undisclosed
  10. 10Sean VanamanTech founderCork · American video game designer, writer and podcasterUndisclosed
  11. 11William Russell GracePublic company founderBallylinan · American politician (1832-1904)Undisclosed
  12. 12John Philip HollandPublic company founderLiscannor · Irish-American marine engineer (1841–1914)Undisclosed

Technology Sectors

Artificial Intelligence 1Internet and Software 3Web 1.0 and the Early Internet 1Web 2.0 and Internet Platforms 2

Leading IndustriesBy associated people

aircraft lease2
publishing2
mechanical engineering1
paper and publishing industry1
engineering1
mass media1
medicine1
newspaper industry1
artificial intelligence1
news media1
retail1
defence industry1

Companies Headquartered Here

  1. 1PDD HoldingsPDD.O1
  2. 2Ryanair3
  3. 3Cimpress3
  4. 4Dole plc3
  5. 5Ingersoll Rand1
  6. 6CPL Resources1
  7. 7Actavis1
  8. 8Medtronic plc1
  9. 9Johnson Controls1
  10. 10Tyco International1
  11. 11Linde Group1
  12. 12Allergan plc1
  13. 13Playrix4
  14. 14Unnamed2
  15. 15The Night Sky1
  16. 16ESW1
  17. 17Romero Games1
  18. 18Virgin Media Ireland1
  19. 19Aergo Capital1
  20. 20BETDAQ1
  21. 21Bauer Media Audio Ireland1
  22. 22CryptoLogic1
  23. 23Demonware1
  24. 24NCB Group1

Wealth figures are in U.S. dollars and use the latest available estimate for each person. Read the methodology and sources.