Abreu Advogados

Firm Profile

Rankings

Global

Awarded leading firm in Global 2026

Chambers and Partners

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Chambers and Partners

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Overview

Provided by Abreu Advogados

Chairman of the Board of Directors: Duarte de Athayde

Managing Partner: Inês Sequeira Mendes

Number of partners: 43

Number of lawyers: 200+

Languages: English, French, German, Portuguese, Spanish 

Firm Overview: 

Abreu Advogados is a big four independent law firm with over 30 years of experience in the Portuguese market, navigating in tomorrow´s sectors and industries. As a full service law firm, Abreu is recognized as the 11th fastest growing Portuguese firm by The Lawyer Euro 100, with 51% growth in 5 years.

With offices in Lisbon, Porto and Funchal, Abreu has provided highly effective solutions in areas such as Corporate/M&A, Tax, Litigation and Competition. The team holds a high degree of specialization in key industries for the Portuguese and African economies, such as Energy and Natural Resources, Real Estate, Banking, Technology, Life Sciences, Projects, Tourism and Hospitality.

Its clients consistently choose the firm to seize growth opportunities and to assist on increasingly complex international transactions whilst working with the most prestigious law firms in the world.

The firm´s successfully implemented strategy is to be disruptive and challenge the status quo. Considered a leading Tech firm in the Finance, Fintech and TMT areas, its teams have analyzed the consequences not yet addressed of corporate models, such as cryptocurrency and blockchain.

Abreu Advogados is a member of several Associations of international Lawyers, such as Consulegis, AIJA, UIA, CIArb, ABA, amongst other, providing Clients with the benefits of global service. Its international visibility has been strengthened through the relationship with Multilaw, which has allowed the firm to assist clients from various jurisdictions.

Abreu Advogados is committed to setting the future in progress.

ESG DNA:  

Powered by tomorrow’s challenges 

Embracing sustainability is part of the DNA of Abreu Advogados. This is its identity and has led the firm to assume an active commitment towards its culture and people.

Since 2015, Abreu Advogados is the only Law Firm in Portugal certified B Corp and understands its practice as a force for good. Abreu Advogados aims to serve as an example in the construction of a law firm that values, supports and promotes best practices at a social, economic and environmental level.

By certifying its quality management system under the European ISO 9001 standards, the firm became the first law firm in Portugal to do so and to subsequently publish a Sustainability Report. Abreu Advogados is also the first (and still the only) Portuguese law firm to publish a Sustainability Report under the directives issued by the GRI (Global Reporting Initiative), to publish its accounts and to measure its carbon footprint.

Abreu Advogados is powered by tomorrow´s challenges and well positioned to advise its clients on ESG matters, advising companies from many different sectors, as well as public bodies and non-governmental organizations on all aspects related but not limited to environmental law, including environmental impact assessments, prior information procedures, and licensing and certification of economic activities, effluent management and waste management.

30 years of sustainable growth 

For the past three decades, Abreu has led the way in creating long term partnerships with its clients and relied on diverse talent and expertise.Abreu's core is deeply non-conformist and fearless when diving into what are now the most innovative sectors and industries.

Being recognized by the successful and sustainable regulatory solutions it presents, on different sectors and jurisdictions, Abreu Advogados aims at the continuity of its clients businesses - which have been its biggest champions.

Its strength? Truly challenging and winning business models. By embracing consistency and bold strategies, Abreu has paved the way for the next thirty years in the legal sector, as a leading law firm in the Portuguese market.

Main Areas of Practice:  

■ Agriculture

■ Banking & Finance

■ Competition, Regulatory and EU

■ Corporate and M&A

■ Dispute Resolution

■ Distribution & Retail

■ Employment

■ Energy and Natural Resources

■ Information Technology

■ Insolvency and Restructuring

■ Intellectual Property

■ Litigation and Arbitration

■ Media

■ Public and Environment

■ Real Estate

■ Sports

■ Tax

■ TMT

■ Transport and Shipping

Ranked Offices

Provided by Abreu Advogados

Address (A-Z)

Portugal - Head office

Lisbon

AV INFANTE D HENRIQUE 26 , Lisbon, Lisbon, Portugal, 1149-096, Lisbon

www.abreuadvogados.com

+351 21 723 1800

Timor-Leste

Dili District

Dili, Dili District, Timor-Leste, Dili

Chambers Laurel

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Chambers Laurel

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Contributions

Latest contributions provided by Abreu Advogados

Global Practice Guide
Pedro Ferreira Henriques
Rodrigo Formigal
Authored by
Pedro Ferreira Henriques, Rodrigo Formigal
Article • Nov 2025
Global Practice Guide
Armando Martins Ferreira
Margarida Calixto Kolmer
Inês Sequeira Mendes
Authored by
Armando Martins Ferreira, Margarida Calixto Kolmer, Inês Sequeira Mendes
Article • May 2025
Global Practice Guide
Inês Sequeira Mendes
Armando Martins Ferreira
Margarida Calixto Kolmer
Authored by
Inês Sequeira Mendes, Armando Martins Ferreira, Margarida Calixto Kolmer
Article • May 2025

All contributions provided by Abreu Advogados

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Title and authorsContent typePublication dateMedia type
Cybersecurity 2025 | Portugal | Trends and Developments
Authored by: Leonor de Sá e Frade, Ricardo Henriques, Diogo Pereira Duarte, José Maria Alves Pereira
Global Practice Guide Feb 2025 Article
Cybersecurity 2025 | Portugal | Law and Practice
Authored by: Ricardo Henriques, Diogo Pereira Duarte
Global Practice Guide Feb 2025 Article
Fintech 2025 | Portugal | Trends and Developments
Authored by: Ricardo Henriques, Isabel Pinheiro Torres, João Diogo Barbosa, Diogo Pereira Duarte
Global Practice Guide Feb 2025 Article

Articles, highlights and press releases

3 items provided by Abreu Advogados

Abreu Advogados