Microsoft, Google and Johnson & Johnson are Ireland's biggest exporters.
A new report published by the Irish Exporters Association (IEA) and Investec identifies Ireland's top 250 exporting companies.
The study shows that the ICT sector led the increase in the exports in the past year.
Microsoft heads the list with an export turnover of €13.7bn, up 37% from 2013, while Google comes in second with €12.45bn in exports and Johnson & Johnson third with €10.5bn.
The top Irish company was Smurfit Packaging, which was in fifth place behbusind Dell. Kerry Group was eighth overall and Glanbia 17th.
"45% of our exports are coming from the ICT sector - hardware, software and mobile technologies," said John Whelan, Chief Executive of the IEA, at the report's launch this morning.
Mr Whelan said total exports from the IT sector grew by 12% per cent in the past 12 months.