William Trewlynn is a Nucoorilma, Anaiwan, and Dunghutti man from Western Sydney, now based on Gadigal Country. As Managing Director, Chief Visionary Officer, and Head of Cultural Strategy at YarnnUp, he leads First Nations consultancy efforts focused on reconciliation, economic development, and cultural integrity. A passionate storyteller and social entrepreneur, he has championed First Nations economic empowerment, circular economics, and stakeholder engagement throughout his career.
His leadership roles include former Chairperson of Gadigal Information Service (Koori Radio), Deputy Chairman of Sydney Metro Aboriginal Council, and founder of BlaQ Aboriginal Corporation, advocating for Aboriginal LGBTQ+ communities. Holding a Master of Business in Indigenous Business Leadership from Monash University, he combines academic knowledge with lived experience to guide organisations in meaningful engagement with First Nations peoples.
Through YarnnUp, William develops cultural strategies, stakeholder engagement initiatives, and capacity-building programs, ensuring organisations navigate Aboriginal affairs with respect and authenticity. His dedication to economic self-determination, sustainability, and social change solidifies his influence as a key advocate for Aboriginal and Torres Strait Islander communities.
