Dylan Lawrence’s appointment follows the resignation of Peter Tynan earlier this year.
Sarah McHardy worked in a variety of senior roles at Genesis Energy and Vector.
Minister Ayesha Verrall has appointed Nicole Anderson, Phil Taylor and Kiriwaitingi Rei-Russell to the Scion board for a three-year term.
Graham Stuart will be replaced by Susan Paterson after five years at telematics company.
Carolyn Young was most recently the chief executive of Special Olympics New Zealand.
Mark Phillips started with Southern Cross Healthcare on Monday June 12.
The listed retailer has appointed Chris Kinraid as the new group chief executive.
Carl Carrington will join the salmon farmer in August.
James Buwalda leaves and Melanie Mark-Shadbolt becomes the new independent chair.
Darren Evans has been appointed to the newly created executive leadership position.