Kilkenny-based entrepreneur Terry Clune owns Taxback group which processes overseas tax reclaims for everyone from multinationals to backpackers. It is estimated to be worth close to 300m. Last year the business signed a deal with Airbnb that will make the Irish company the ‘preferred tax partner' for Irish Airbnb hosts. Wicklow-born Clune also owns 55pc of fast growing money transfer business Transfermate. However, another of his projects, Connect Ireland, which rewarded people for creating jobs in Ireland, is locked in a bitter dispute with the IDA about the number of jobs created.