Kane Patena will replace Keith Manch on September 1.
Current chair Mark Tume always planned to serve only one term.
Gareth Fleming joins the Accuro board with immediate effect.
Sheridan Broadbent takes over from John Quirk, who has been chair for more than a decade.
Jen Baird will start the role in early July.
Rhiannon McKinnon previously served for three years as general manager of strategy and partnerships at Kiwi Wealth.
Joe Halapua will be responsible for managing the active internal New Zealand equities portfolio.
Angela Watson, Rob Campbell and Levi Slavin will lead Colenso into a new era for the agency.
Deep-tech champion Vignesh Kumar joins board as an independent member and Zoe Murphy as an observer.
Mark Verbiest will take up the role of board chair on July 1.