Auckland businessman Nelson Cull brings a strong commercial focus to the board. He has served as chair and director of structural and civil engineering consultant firm MSC Consulting Group Ltd and Lanzafuels Ltd, completed a term as the SPARC appointed independent commissioner for NZ Football Inc and previously served on the board of Netball NZ during a period of enormous transition. His other previous roles also include directorships of Guardian HealthCare, KeriFresh Ltd and an engineering services company called Techscape Ltd that was owned by Waitakere and North Shore City councils. He worked in the oil industry in New Zealand, the United Kingdom and Australia, before moving to Fletcher Challenge where he set up the new retail company Challenge Petroleum. A short move to Contact Energy was followed by a stint at the helm of New Zealand Works Infrastructure.