João Marques Mendes > PLMJ > Lisbon, Portugal > Lawyer Profile

Av. Fontes Pereira de Melo, 43
1050-119 Lisboa

Work Department

Public Law




João is a partner in the Public Law practice. With around 10 years’ professional experience, he has focused on the area of energy and natural resources, providing legal assistance with regulatory, projects, transactions and litigation, to Portuguese and international clients.

In the area of energy and public law, his main focus has been advising on the implementation and operation of projects and infrastructures, with a special focus on renewable energies. He advises Portugal’s leading energy companies, especially on regulatory and contractual issues. He also advises on dispute resolution in the fields of energy and regulatory.

João is the author of numerous papers and articles on energy law and has frequently been invited to lecture and participate as a speaker in classes and conferences in the fields of energy and regulatory law.

Before joining PLMJ he was a lawyer at CMS Rui Pena & Arnaut.


Portuguese and English


Law degree from the University of Lisbon, 2009
Admitted to the Portuguese Bar Association, 2012
Guest lecturer at the Faculty of Law of the University of Lisbon, since 2017-2019
Guest lecturer at the Faculty of Law of the University of Coimbra, 2017

Lawyer Rankings

Portugal > Energy and natural resources

(Next Generation Partners)

João Marques MendesPLMJ

Fielding a strong team that is highly regarded for its ability to cover M&A, project development, regulatory and dispute resolution matters, PLMJ is singled out by clients for its ‘in-depth and consolidated knowledge’. The team is jointly steered by Inês Pinto da Costa, recommended for her strong track record in infrastructure financing and construction contracts relating to energy projects, and João Marques Mendes, who maintains a broad practice acting for both Portuguese and international clients in regulatory matters, projects, transactions and litigation.

Portugal > Projects and project finance

PLMJ provides expert guidance to both Portuguese and international clients in project finance and development, covering a broad range of sectors from energy to healthcare. The team is under the leadership of Inês Pinto da Costa and Maria Zagallo, with Pinto da Costa specialising in PPPs and project finance in the infrastructure space, and Zagallo showing particular strength in advising both public and private entities on infrastructure projects in the transport, healthcare, water and sanitation segments. Diogo Perestrelo, who ‘has a unique level of experience and is unanimously recognised by his peers‘, concentrates on energy and infrastructure-related M&A and projects, while João Marques Mendes is dedicated to energy and natural resources matters, offering advice on regulatory issues, project implementation, and dispute resolution. Joana Brandão‘s expertise lies in energy, infrastructure, and real estate projects, and Nuno Serrão Faria has in-depth knowledge of project finance and development in the renewables sector.