Te Kāhui Tumu | Executive Leadership Team

Vivien Maidaborn
Tumu Whakarae | Chief Executive — Vivien Maidaborn

Vivien has extensive leadership experience. Her career includes three previous CEO roles in key community organisations. Vivien is driven by equity and inclusion in access to the Internet, and has a strong background in digital innovation, partnership, and experience in serving a membership constituency.

Catherine Fenwick, General Manager
Tumutaumatua | General Manager Organisational Performance — Catherine Fenwick

Catherine's role is to lead, develop, and execute our core corporate operations and financial performance. She enjoys travelling whenever possible, attending rowing, netball, and other sporting events with her daughter, and exploring the many great walks around the regions.

Rose Jamieson, General Manager
Tumu Whiria | General Manager Public Impact — Rose Jamieson

Rose provides strategic leadership for our work with communities — focusing on making the Internet better for people here in Aotearoa. 

Tim Johnson, General Manager
Tumuwhanake | General Manager Customer and Product — Tim Johnson

Tim has nearly 25 years of experience working in technology across Aotearoa, North America, and the South Pacific. During this time he’s run registrars, registries and ISPs. Tim has been an active participant in international Internet governance and was also a member of the .nz policy review panel. While his attempted sporting career may have succumbed to injuries, he is still an avid year-round sports fan. 

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Tumu Kaupapa Māori – Hinemaua Rikirangi

Hinemaua (Ngāti Ranginui, Ngāti Hako) joined InternetNZ | Ipurangi Aotearoa in April 2024 and brings with her an impressive amount of experience in previous senior leadership roles within community, government, iwi, and private sector organisations. She has a strong background in designing cultural capability frameworks, and experience embedding Te Tiriti o Waitangi in organisational culture and strategic outcomes.