Andersen‘s energy team was significantly strengthened in February 2025 by the addition of practice head Luísa Carrilho da Graça, who joined from Gómez-Acebo & Pombo and possesses extensive expertise in energy-related corporate and M&A mandates.

Pérez-Llorca’s team, led by Carlos Vaz De Almeida, is well placed to advise clients on contentious matters, project contracts, compliance, and transactional issues relating to the energy sector; it was recently strengthened by the addition of Joana Alves de Abreu, who joined from Morais Leitão, Galvão Teles, Soares da Silva & Associados in January 2025, bringing significant experience in regulatory issues, M&A and project finance in the energy space.

With deep knowledge of natural gas, electricity and renewable energy issues, CMS is a popular choice for domestic and international clients seeking advice on project implementation, cross-border transactions, regulatory matters and administrative litigation. Mónica Carneiro Pacheco is recognised for her extensive expertise in energy and natural resources regulatory issues and renewable projects. Manuel Cassiano Neves is frequently involved in matters relating to renewable energy, with experience spanning green hydrogen projects, wind and solar developments, power generation facilities, and self-consumption arrangements. Bernardo Cunha Ferreira has significant experience in M&A transactions involving energy projects, particularly solar PV and biomass plants, while Duarte Lacerda routinely assists with transactions, public procurement and contentious issues across the energy and infrastructure sectors.

Morais Leitão, Galvão Teles, Soares da Silva & Associados fields a solid energy and natural resources team that is adept at handling sector-related market-defining transactions, regulatory issues and projects. The group is retained by household names in the Portuguese energy sector, spanning electricity, natural gas and renewables. M&A and private equity specialist Tomás Vaz Pinto oversees the department with Catarina Brito Ferreira, who advises sponsors, lenders, and developers on M&A and project structuring. Ricardo Andrade Amaro is another name to note for M&A in the renewables sector, while Vítor Pereira das Neves assists with renewable energy regulatory issues.

With extensive experience in advising on development, investment, financing, construction, refinancing, restructuring, and M&A matters, VdA’s energy team is highly sought after by major domestic and international players across the electricity, oil and gas, and mining sectors. Manuel Protásio specialises in project, acquisition, and structured finance across the energy and infrastructure sectors. Ana Luís de Sousa, head of the energy and natural resources practice, focuses on the development and implementation of energy projects, and excels in greenfield project structuring and finance, while João Afonso Fialho leads on oil and gas matters. Vanda Cascão offers extensive expertise in energy and sustainable investments in Portugal and Lusophone Africa. Inês Maltez Fernandes, who recently joined the firm, adds valuable experience in energy projects and regulatory matters.

Abreu Advogados frequently advises clients in the renewable energy and oil and gas sectors on public procurement, licensing, project development, and financing matters. The team is led by José Eduardo Martins, noted for his expertise in environmental law, climate change, and ESG issues; Manuel de Andrade Neves, who focuses on energy law,  advising on procurement and large-scale projects; and Tiago Corrêa do Amaral, who is skilled in hydropower, wind, and hybridisation projects. Bruno Azevedo Rodrigues and Rui Ferreira de Almeida contribute significant experience in energy finance and infrastructure.

With expertise in renewable energy, cogeneration projects, self-generation plants, oil, gas, mining and waste treatment activities, Cuatrecasas’ energy practice, co-led by Francisco Santos Costa and Lourenço Vilhena De Freitas, advises domestic and international clients on M&A, regulatory, procurement and contentious matters. Santos Costa regularly assists investors with renewable energy transactions and regulatory issues, while Vilhena de Freitas is recognised for his expertise in public procurement, energy law and regulation. João Siqueira Sena focuses on infrastructure and energy-related M&A, and Miguel Lencastre Monteiro specialises in corporate transactions within the energy sector.

Noted for its expertise in energy transition and decarbonisation matters, DLA Piper ABBC advises investors, developers and other key stakeholders across the power, renewables, mining, oil and gas and hydrogen markets. The team is led by Nuno Azevedo Neves, who advises on M&A, project finance and regulatory-driven transactions. André Duarte Figueira advises on energy and infrastructure projects in Portugal and Portuguese-speaking African countries. Mariana Ricardo focuses on energy and sustainability matters, while Tomás Alves assists with public procurement, administrative litigation and regulatory issues.

Linklaters is well placed to advise on acquisitions and disposals of renewable energy assets, project finance and development, as well as regulatory aspects of energy projects and transactions. Francisco Ferraz de Carvalho leads the team and assists lenders, sponsors and governmental entities on project financing and development in the energy sector. Maria de Athayde Tavares focuses on regulatory, environmental, and administrative law issues linked to M&A, investment structuring, and financing. Teresa Novo Faria and Bruno Vieira provide key support in project finance and development mandates.

The energy and natural resources team at PLMJ advises clients on big-ticket transactions across all segments, from natural gas and electricity to self-consumption schemes. Led by João Marques Mendes, who has notable expertise in regulatory frameworks and renewable project implementation, the team offers comprehensive support in M&A, PPAs, financing, regulatory, licensing and contentious matters. Nuno Serrão Faria advises on project implementation and investment structuring in the energy space, while Joana Campelo specialises in public and regulatory law with a focus on the energy sector. Telmo Coutinho Rodrigues is also noted for assisting with the implementation and acquisition of renewable energy assets.

SRS Legal is active in the oil and gas and renewable energy sectors, handling transactional, licensing, project implementation and development matters for key industry stakeholders. The team is led by Gonçalo Anastácio, noted for his expertise in regulatory and energy matters, including M&A, ESG, and compliance issues. Nuno Calaim Lourenço advises on energy-related transactions and antitrust matters, while Carlos Costa Pina offers extensive knowledge across oil and gas, fuels, and renewables.

TELLES remains a go-to firm for developers, sponsors and lenders, seeking advice on project development and finance, M&A, and regulatory matters. Practice head Ivone Rocha has extensive experience in the development of renewable energy projects. Rui Vasconcelos Pinto assists national and international clients with acquisitions, sales, financing, and the structuring of energy projects, with a particular emphasis on renewables, hydrogen, biomethane, natural gas and electric mobility. The firm merged with Deloitte Legal in January 2026.

Uría Menéndez’s energy practice is recognised for its comprehensive expertise in transactional, regulatory, and project development matters, advising major Portuguese and European clients across the electricity, gas distribution, water and wastewater sectors. Bernardo Diniz de Ayala and João Louro e Costa lead the team, with the latter frequently assisting with project development, O&M and EPC contracts, and regulatory issues, particularly in the solar and green fuels markets. Gonçalo Andrade e Sousa complements the practice with notable experience in M&A and project development involving regulated energy assets.

Banks, investors and sponsors regularly turn to CS’Associados for advice on project finance and M&A matters involving renewable energy assets, most notably windfarms, solar PV and biomass plants. The practice is led by Mafalda Ferreira, recognised for her experience in domestic and cross-border transactions and her strong command of the energy regulatory framework. Duarte Brito de Goes has a strong track record in greenfield and brownfield project investments, while Mariana Silva Pereira is sought after by lenders and operators in the photovoltaic sector, particularly in solar auctions and the structuring of energy portfolio transactions.

Deloitte Legal is recognised for its expertise across renewable energy, oil and gas, and thermal power, advising on public procurement, regulatory issues, administrative litigation and transactions. The practice is led by Rita Ferreira dos Santos, who has extensive experience in project development and financing. Teresa Moreira dos Santos advises national and international investors on energy-related regulatory matters in the context of M&A deals. The firm merged with TELLES in January 2026.

Eversheds Sutherland advises on energy and natural resources matters, with particular strength in regulatory and transactional work. Practice head João Rocha de Almeida is experienced in public law disputes, public procurement and construction contracts. Other key practitioners include João Robles, who is noted for his knowledge of the oil and gas sector.

Led by Ana Luísa Guimarães, the team at Gómez-Acebo & Pombo is adept at handling corporate, M&A and financing matters within the renewable energy sector, and also excels in the development and structuring of projects in this space. Guimarães focuses on concessions, projects, and public law issues related to energy and other regulated sectors. Mafalda Barreto specialises in corporate and M&A, while João Marques Rodrigues advises energy clients on regulatory compliance, licensing, project development, and transactions.

With strong expertise in wind, solar and biomass projects, MACEDO VITORINO boasts in-depth knowledge of energy regulation, project development, environmental compliance and administrative law. The team is led by João Macedo Vitorino, who specialises in advising on the management, acquisition, and sale of energy portfolios. Frederico Vidigal focuses on M&A transactions and energy-related projects, with particular expertise in licensing and regulatory matters within the energy sector.

With a strong presence in the conventional and renewable energy markets, Miranda & Associados is well positioned to assist with transactions, PPAs, energy litigation and project implementation. The practice is co-led by Nuno Marques Antunes, who brings extensive experience in the petroleum, LNG, renewables, and hydrogen industries, and Diogo Xavier de Cunha. João Rosado Correia focuses on regulatory, procurement, and litigation matters, with a special emphasis on the electric and natural gas sectors, while Sara Castelo Branco regularly advises on public law and energy-related issues.

Raposo Bernardo has a deep understanding of energy law, advising on matters across the hydropower, solar, oil and gas segments. Nelson Raposo Bernardo handles both sector-related regulatory and transactional matters. Júlio Martins Júnior focuses on renewable energy development and financing, particularly within the solar and wind power sectors.

Particularly well regarded for its expertise in public and administrative law, Sérvulo & Associados assists energy clients in contractual, transactional, procurement and regulatory compliance matters. Mark Kirkby has extensive experience in public and regulatory law, with a particular focus on the energy sector. Pedro Silveira Borges brings together strong transactional and regulatory expertise and regularly handles M&A in the energy sector. Former co-head Sofia Carreiro is no longer at the firm.