Mr. Yeo was a member of the United Nations Committee of Experts in Public Administration (CEPA), established by the Economic and Social Council (ECOSOC) from 2010 to 2013 for the promotion and development of public administration and governance among Member States, in connection with the United Nations Development Agenda. He was a member of World Health Organization Expert Working Group on R&D Financing from January 2009 to January 2010. He is also Chairman of Economic Development Innovations Singapore Pte Ltd (EDIS) which is focused on developing and managing integrated cities and providing industrial development advice to overseas governments and government-related entities.