| Rank | Companies |
| | |
| 1 | O2 Ireland |
| | |
| Abbott Laboratories Ireland Ltd |
| Accenture |
| Airtricity |
| Allianz Ireland |
| Anglo Irish Bank |
| AOL Technologies Ireland |
| BDO Simpson Xavier |
| BMC Software |
| Brightwater |
| BUPA Ireland |
| CB Richard Ellis Ireland |
| Children's University Hospital, Temple Street |
| Chubb Ireland |
| Clontarf Castle Hotel |
| Crowne Plaza Dublin Airport Hotel |
| Deloitte |
| The Department of Enterprise, Trade and Employment |
| DePuy (Ireland) Ltd |
| Diageo Ireland |
| Enterprise Rent-A-Car |
| GE Commercial Aviation Services |
| GlaxoSmithKline Ireland |
| Google Ireland Ltd |
| Hertz |
| Hibernian General Insurance |
| Hilton Dublin City Hotel |
| IIB Bank |
| Intel Ireland |
| Irish Life Corporate Business |
| IrishJobs.ie |
| Killester College |
| LE EITHNE |
| Marriott Druids Glen Hotel & Country Club |
| McDonald's |
| O'Mahony Pike Architects |
| Ovation Group |
| PEI |
| PepsiCo Ireland |
| Philips Electronics Ireland |
| Premier Recruitment Group |
| Public Appointments Service |
| Radisson SAS Hotel & Resorts |
| Royal Bank of Scotland, Group Technology |
| Sherry Fitzgerald Group |
| Sodexho Ireland |
| Statoil Ireland Ltd |
| Tourism Ireland Ltd |
| Whirlpool SSC Ltd |
| Xerox |
