Stuart Houliston joins the company from Sanford, as the chief financial officer, on June 15.
He will depart the airport at Christmas and join Datacom in March.
Geetesh Raniga joins audit practice from Baker Tilly Staples Rodway.
The Utilities Disputes Board welcomes Mallon while paying tribute to former commissioner Mary Ollivier.
The former BNZ chief is retiring after 17 years with NAB.
The appointment is for two roles: as Marsh McLennan NZ chief executive, and Marsh NZ president.
Tracey Taylor will commence her role on October 2, 2023.
The former Cabinet minister will be its new commercial director, based in Wellington.
Tim Grafton will leave the role next April.
Former IBM managing director and NZTech board member Mike Smith takes up the role.
