Angela Nash and Chris Gudgeon will add depth and further skills to the boards, says chair.
Ross Bowmar will join the board for 12 months from August 2022.
Vvivien Maidaborn will take up the role on October 17.
FNZ, which recently acquired the online investment platform, has appointed another co-founder as acting CEO.
Katie Ludman has been appointed to the newly created role.
Darrell Morgan will be a key leader in the Dunedin office.
Tong takes up the sustainability, risk and funding director, Infratil Ltd post, in Wellington.
Chris Marston-Fergusson is the new Appointed Actuary and Simona Turin the board’s newest director.
Denise Cosgrove will take up the role on October 25.
Frieda Crawford