Sergei Zelenev is President of the International Council on Social Welfare (ICSW). A social scientist, his work focuses on intergenerational relations, digital transformation, integrated social policy, and social welfare. He served as Executive Director of ICSW from 2012 to 2019. Prior to this, he spent nearly three decades with the United Nations, working at United Nations Department of Economic and Social Affairs in New York and in field missions in Africa and the Caribbean. He has also served as a visiting professor in several countries, teaching socio-economic development and policy.

Antonio López Peláez is Professor of Social Work and Social Services at the National University of Distance Education (UNED), Spain. Since 2020, he has served as Executive Director of ICSW. He is Director of the Chair in Innovation in Social Services and Dependency (UNED/City Council of Fuenlabrada) and co-director of The Participatory Group.