Helen Skinner, Catherine Emerson, Andy Havill are taking up new roles in March and Jennifer Page will join the board in April.
Rachel Venables joins Maynard Marks from Context Architects.
Steve Webber was most recently at Vodafone.
Gavin Lloyd has joined New Zealand Sotheby's International Realty.
The new and interim appointments to the leadership team will begin to come on board from July 24.
Amanda Smith and Paul Richardson join the board as independent members.
After 20+ years at Millennium Hotels, career hotelier Karl Luxon joins SHG.
Bronwyn Kirwan has been appointed to top sales and service role.
Matt Smith will boost corporate law firm’s tech, electricity sector expertise.
Brad Pogson takes the reins from Louise Wright-Bush, who steps down after seven years in the role.