Thomas Curtis is a Trustee of the Mōkai Pātea Waitangi Claims Trust, he is also the Convenor for Te Runanga o Ngāti Hauiti. He is also the Chairperson for Te Maru o Ruahine Trust , chairperson of the Potaka Whanau Trust and is a member of other trusts within Ngāti Hauiti. He is involved in many aspects of whānau and hāpu development.
In his professional life he has over 30 years in the Information Technology industry.
He is also involved in Kapa Haka as a performer with Ngāti Poneke Young Māori Club and Radio Broadcasting with Station Te Upoko o Te Ika.