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Guillermo Tejeiro Gutiérrez

Guillermo Tejeiro Gutiérrez

Contact information
(57-60-1) 346 2011 Ext. 8796
Admitted to practice law in

Director of the Environment and Sustainable Business Team and co-leader of the Brigard Urrutia´s  ESG and Impact Team, with more than 15 years of experience as legal advisor, researcher and speaker on matters related to environmental law, renewable energy law and sustainability . He has held positions in NGOs, research institutes and law firms in Europe and Latin America.

Provides legal advice to national and international clients on matters related to the sustainability of projects, works and activities, including the representation of clients in litigation and environmental sanctioning investigations, the development of socio-environmental due diligence, processing environmental administrative authorizations before the environmental authorities, obtaining environmental tax benefits, counselling on ethnic-differential law and structuring sustainable projects and green businesses, with a focus on impact investment and ESG criteria, among others.

Guillermo holds a J.D and a Master´s in Law from the Universidad de los Andes (Colombia), an LL.M degree in Environmental and Energy Law (KU Leuven, Belgium), a postgraduate degree in Environmental Law (UFRGS, Brazil) and a postgraduate degree in Regulation of Electric Power and Gas (Externado de Colombia). Lecturer at several universities in Colombia, he is the author of several publications on environmental law, renewable energy and sustainability. In addition, he is a Designated Officer of the Environment, Health and Safety LAW Committee of the International Bar Association - IBA, founding member of the Latin American Alliance for Environmental Law and Sustainability - ALDAS, member of the Board of Directors of the Green Chamber of Commerce of Colombia , member of the Latin American Network of Impact Lawyers - RELAI, and associate of the Environmental Law Institute - ELI.


Brigard Urrutia´s director nd co-leader of the Brigard Urrutia´s  ESG and Impact Team , he joined the firm in August 2014. He worked as a law fellow of Liedekerke Wolters Waelbroek Krikpatrick in Brussels, Belgium, as well as researcher at the Center for International Environmental Law – CIEL in Geneva, Switzerland. Additionally, Guillermo served as legal advisor on international environmental law at the environmental boutique Trindade Lavratti Direito Ambiental and was appointed as Technical Coordinator of a research project at the Institute “Law for a Green Planet” in Porto Alegre, Brazil.

Educational Background

Lawyer from Universidad de los Andes, he holds a master in Law from the same university. He also holds an LL.M. Programme in Environmental and Energy Law from Katholieke Universiteit Leuven – K.U Leuven  and a postgraduate degree in Environmental Law from Universidade Federal do Rio Grande do Sul – UFRGS and a postgraduate degree in Electric Energy and Gas from Universidad Externado de Colombia.