Bernard Yong had an eight-year tenure with Mitchell Corporation
Tech entrepreneur Max Polaczuk has got the new role.
GHD is a professional services company operating in the global markets of water, energy and resources, environment, property and buildings, and transportation.
Change follows a full governance review at the organisation which aims to stir innovation across New Zealand.
Richard Wyeth will take over as Synlait chief executive in May.
Suneil Connor has been an NZFN board member since its inception.
Willie Hamilton brings more than 15 years of New Zealand litigation experience.
David Abercrombie retiring after more than 14 years at the helm.
Fleur Fitzsimons will join Duane Leo as co-leader of New Zealand's largest union.
Simon Mackenzie will leave the lines company at the end of June after more than 17 years in the role.