Tessy de Nassau holds an M.Sc. in International Studies and Diplomacy from SOAS and was a fellow at the center for Global Health Security at Chatham House. She has extensive experience in informal and formal diplomacy as well as public representation. Tessy works as an Ambassador for UNAIDS (Global Advocate for Young Women and Adolescent Girls) since 2015 and has been appointed patron to UNA-UK in 2016. Tessy spent five years in the military, during which she was deployed to Kosovo as a UN Peacekeeper. She was the only woman of her draft.


Tessy actively promotes a number of issues, including global health and women’s rights. She is passionate about development and has committed her time and energy to furthering the work of organizations in which she believes. That is why she co-founded Professors Without Borders (PROWIBO), an educational NGO with global reach. She received the Woman of the Decade award from the Women Economic Forum in January 2017 and the Humanities medal for spreading humanistic ideas worldwide.

As co-founder and director of logistics at PROWIBO, Tessy  contributes to the development of partnerships with schools and organizations and has taught a class in Diplomacy and International Organizations in the Sierra Leone Summer School.


As a day job, Tessy holds the position as Director of VICE Impact and Special Projects for the whole EMEA (MENA) regions. VICE is a global media company that reaches around 73 million young people a month.