Irish Entrepreneurs: The 10 richest & most successful in recent memory

10. Michael O’Leary – business leader of Ryanair

9. Denis O’Brien – Ireland’s richest native-born citizen

8. Tony O’Reilly – has a hand in Heinz and Irish Independent News and Media

7. J.P. McManus – has a huge property portfolio

6. Dermot Desmond – the founder of NCB Stockbroker

5. Pat McDonagh – the creator of Supermac’s