In 2017, Jack Collen joined the family business as an engineer. In isolation, it was not a remarkable event. After all, family business dynasties are commonplace in Ireland, and there is nothing unusual about the next generation of a business joining the family firm. However, while most dynasties last three or four generations, Jack Collen was the eighth generation of his family to link up with Collen Construction. The business dates to 1810, and it has remained within family control ever since – Jack’s father Neil is the majority owner of the company and its chairman (Neil, incidentally, was the…