Angela Nash and Chris Gudgeon will add depth and further skills to the boards, says chair.
Tammy Auranen will step into the role early next year.
New Plymouth businessman Philip Brown will head the board of NZX-listed medicinal cannabis company.
Danusia Wypych begins new chief executive role today.
Natasha Dunbier has been appointed to the role of chief people officer.
Westpac chair Pip Greenwood has been announced as his replacement.
She takes over from Chris Curtin, who will retire after serving as AA Insurance’s CEO for 28 years.
SIS chief Rebecca Kitteridge will take up the role in March.
Naomi James to be replaced by Rob Buchanan of Manawa Energy.
Billie Moore will be based in Wellington and takes up the role in December.