Lisa Tumahai CNZM serves as the Chief Executive Officer of Pokeka Poutini Ngai Tahu Ltd, a mobile Maori Health and Social Service provider established to deliver holistic care across Te Tai O Poutini. In addition to this role, Tumahai is the Deputy Chair of the Climate Change Commission, where independent advice is provided to facilitate New Zealand's transition to a low-emissions economy. Other notable positions include Director at Te Ara Pounamu Limited, Co-Chairwoman of the Hinemoana Halo Partnership Fund, Counsellor at the University of Canterbury, Member of the Board of Trustees for the Waitangi National Trust & Treaty House, and Board Member at Development West Coast. Tumahai is also a Director at Te Kura Taka Pini and a Board Trustee for the West Coast Primary Health Organisation, with prior experience as a Director at Arahura Holdings Ltd. Tumahai holds a Bachelor of Commerce degree from the University of Canterbury and has pursued further education at the Stanford University Graduate School of Business.