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| Name | Worth | Industry | |
|---|---|---|---|
| 1 | John Dorrance | £1,300m (€1,884m) | Inheritance |
| 2 | Sir Tony O'Reilly and Chryss Goulandris | £1,268m (€1,838m) | Food, media and inheritance |
| 3 | Dermot Desmond | £846m (€1,226m) | Finance |
| 4 | Sean Quinn and family | £771m (€1,117m) | Quarries, hotels, insurance and industry |
| 5 | Tony Ryan and family | £683m (€990m) | Airline |
| 6 | John Magnier | £500m (€725m) | Bloodstock |
| 7 | U2 | £426m (€617m) | Music |
| 8 | JP McManus | £371m (€538m) | Gambling |
| 9 | Michael Flatley | £357m (€517m) | Entertainment |
| 10 | Martin Naughton | £310m (€449m) | Industry |
| 11 | Dr Edward Haughey | £300m (€435m) | Pharmaceuticals and aviation |
| 12 | Denis O'Brien | £287m (€416m) | Investment |
| 13 | Dr Allen McClay | £275m (€399m) | Pharmaceuticals |
| 14 | Michael Smurfit and family | £262m (€380m) | Packaging |
| 15 | James Mansfield | £261m (€378m) | Hotels |
| 16 | Frank Dunne | £260m (€377m) | Retailing |
| 17 | Pat McDonagh | £244m (€354m) | Computers |
| 18 | Larry Goodman | £234m (€339m) | Meat |
| 19 | Michael O'Leary | £224m (€325m) | Airline |
| 20 | Margaret Heffernan | £212m (€307m) | Retailing |
| 21 | Patrick Doherty | £209m (€303m) | Property |
| 22 | Ray O'Rourke and family | £205m (€297m) | Construction |
| 23 | Sharon, Brian, Paul and Sean McMahon | £201m (€291m) | Retailing |
| 24 | Michael and Nigel O'Flaherty | £191m (€277m) | Vehicles |
| 25 | Anne Dunne | £176m (€255m) | Retailing |
| 26 | George, Henry and John Sisk | £168m (€243m) | Construction |
| 27 | Eugene and Brendan Murtagh | £157m (€228m) | Building products |
| 28 | Dr Mike Lynch | £154m (€223m) | Software |
| 29= | Dr John King | £153m (€222m) | Pharmaceuticals |
| 29= | Eddie Irvine | £153m (€222m) | Motor racing and property |
| 29= | Joseph and Jean Brennan and family | £153m (€222m) | Baking and property |
| 32 | Sir David McMurtry | £148m (€214m) | Engineering |
| 33 | Peter Sutherland | £145m (€210m) | Finance |
| 34 | Charles Gallagher and family | £140m (€203m) | Construction and property |
| 35 | Lochlann Quinn | £133m (€193m) | Industry |
| 36= | Feargal Quinn and family | £132m (€191m) | Retailing |
| 36= | Sean Mulryan | £132m (€191m) | Property |
| 38 | Ben Dunne | £116m (€168m) | Investments |
| 39 | Kevin and Michael Lagan | £110m (€159m) | Civil engineering |
| 40 | Martin Birrane | £105m (€152m) | Property and motor racing |
| 41 | Thomas and Ann Roche | £101m (€147m) | Hotels and toll roads |
| 42 | Leonard Steinberg | £100m (€145m) | Casinos and bookmaking |
| 43 | George, Ted and William Crosbie | £96m (€139m) | Publishing and investments |
| 44= | John Murphy and family | £95m (€138m) | Construction |
| 44= | Max, Malcolm and Noel McMullan | £95m (€138m) | Fuel distribution and property |
| 44= | Tom Wilson and family | £95m (€138m) | Industry |
| 47= | Noel and Anne-Marie Smyth | £94m (€136m) | Property |
| 47= | Thomas Jennings and family | £94m (€136m) | Engineering and property |
| 49= | Geoff Salters and family | £92m (€133m) | Marketing |
| 49= | Joseph Sloan and family | £92m (€133m) | Marketing |
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