Eugene Murtagh

Eugene Murtagh debuts on the 2019 Billionaires list more than five decades after founding building materials manufacturer Kingspan Group. He owns about 16% of the Dublin- and London-listed company, which primarily sells insulation products for commercial and industrial projects.Kingspan has grown through acquisitions and has 100 manufacturing facilities in some 70 countries, with revenue of $4.4 billion in 2017.Murtagh, chairman of Kingspan's board, stepped down as CEO in 2005, passing the baton to his son, Gene.The Kingscourt, Ireland resident had five children with his wife Andrea, who died in 2014.