Eyasu Yimer became a Board member after the CoST Africa region election for a civil society representative to the CoST board. Eyasu has 23 years of experience in Ethiopia’s Government …
Team category: Our board
Claire Schouten
Claire works with state institutions, civil society actors, international organizations, investors and development partners around the world to advance budget transparency, participation, credibility and accountability norms and practices. Claire is …
Christiaan (Chrik) Poortman
Chrik previously chaired the CoST Board from 2011 to 2025. In addition to his role with CoST, he was Senior Adviser at Transparency International, the global coalition against corruption. Until 2010, Chrik …
Petter Matthews
Petter has been involved in CoST since its origins and he has led CoST International since 2011. As Executive Director, he has overall responsibility for CoST policy, strategy and programme …