Leopoldo Guimarães was Chancellor of the New University of Lisbon between 2003 and 2007 and Chancellor of the Lisbon Modern University between January and November 2008. Between 1982 and 1990 he was the Dean of the Faculty of Sciences and Technology at the New University of Lisbon. He is the founder and President of UNINOVA and of the Science and Technology Park – the Madan Park. He has participated in several events about energy, and was co-Chair of the first international conference on Photovoltaic Energy Conversion. Leopoldo Guimarães has been the coordinator or co-coordinator of eleven scientific projects promoted by the European Union and he is the author or co-author of 143 scientific publications. He sits on the editorial board or the scientific council of five scientific magazines.

In 2009, Leopoldo Guimarães was speaker at the panel "Resources and Sustainability" (May, 8th).