The leaking of eleven and a half million files from the Panamanian company Mossack Fonseca has revealed the extent of off shore tax havens.
The information was published by the International Consortium of Investigative Journalists, which shared the data with international media including the Irish Times.
The leaked files shows that Mossack Fonseca used an address at a post office box in Castlegregory when dealing with a company called Denville Consultants SA.
Ciarán D’Arcy is a journalist with the Irish Times.
Maeve Bateman is with Debt and Development Coalition Ireland.
Her organisation is part of a pan-European project to stop tax avoidance.