Firm Profile > Magalhães e Dias - Advocacia > São Paulo, Brazil

Magalhães e Dias - Advocacia
01242-010, SÃO PAULO

Brazil > Competition and antitrust Tier 1

As 'pioneers' in the area of competition and antitrust, the lawyers at Magalhães e Dias - Advocacia are regularly involved in some of the most high-profile and complex cases in the market, and are highlighted for their 'commitment, expertise and availability'. As a specialised economic law boutique, the team also has ancillary expertise in consumer law, international trade and litigation. The firm's broad behavioural practice sees it handling investigations into a wide range of potential anti-competitive conduct, and its strength in this field is also illustrated by its involvement in complex merger filings for major companies. In one example, the firm advised Nacional Gás Butano (from Grupo Edson Queiroz) in the landmark acquisition of Petrobras-owned LPG distribution company Liquigás by a buying group formed by Grupo Edson Queiroz, Copagaz, Fogás and Itaúsa. Leading the sizeable team is Gabriel Nogueira Dias, who is 'without a doubt, one of the lawyers who most understands competition defence in Brazil'. Other names to note include Francisco Niclós Negrão, Raquel Candido in the Brasília office, Thais De Sousa Guerra, Yi Shin Tang and Hermes Nereu Oliveira.

Practice head(s):

Gabriel Nogueira Dias


It is an office with a lot of expertise in the segment in which we operate, which makes them a differentiated consultancy and advisory. There is still a lot of commitment, expertise and availability.

Gabriel Dias and Thais Guerra are two unique professionals, with a lot of availability and flexibility in order to better address the needs of customers.’

‘The office is undoubtedly one of the specialized firms that has been working with the subject for a long time, being pioneers and having knowledge, not just technical, but historical and institutional that brings a differential in the analysis of themes.’

Gabriel Nogueira Dias is, without a doubt, one of the lawyers who most understands Competition Defense in Brazil. He is a great partner and knows several industries and businesses, bringing a lot of contribution to the issues of the companies. He is an available partner with deep technical and institutional knowledge.’

Key clients




AMBEV – Cia. Brasileira de Bebidas

ABA – Associação Brasileira de Anunciantes (Brazilian Advertisers Association)





Grupo Edson Queiroz


ABIEC – Associação Brasileira de Indústrias Exportadoras de Carne

ANDA – Associação Nacional para Difusão de Adubos

Condomínio Shopping Center Iguatemi

Epson Imaging Devices Corporation

Fiat Chrysler

General Motors

Instituto Jogue Limpo


M. Dias Branco



Suzano Papel e Celulose


VLI – Logística

GTM Chemicals


Brazil > International trade Tier 2

Magalhães e Dias - Advocacia is a specialised economic law boutique with a strong emphasis on international trade law and related regulatory and antitrust matters. The team handles a mix of litigation and consultancy work, including advice on anti-dumping investigations, public interest cases, tariff barriers and WTO agreements. It works with an impressive range of domestic and international clients, including household goods, appliance and raw material manufacturers. Gabriel Nogueira Dias is a leading choice for strategic judicial and administrative disputes, while Francisco Niclós Negrão is highly experienced in advising importers and exporters on anti-dumping procedures. Déborah Melo is a key contact at the associate level.

Practice head(s):

Gabriel Nogueira Dias; Francisco Niclós Negrão


‘Specific technical expertise in a very specialised law field. Extreme dedication to cases and ease of contact, at any time, both with partners and associates.’

‘Francisco Niclós Negrão stands out in the anti-dumping law market, for his deep technical knowledge and experience.’

Key clients




Plastipak Packaging


SEB do Brasil Produtos Domésticos (Groupe SEB)

MK Eletrodomésticos (Mondial)

Britânia Eletrodomésticos

ELETROS – National Union of Electrical Products Manufacturers

Pirelli Pneus

Suzano Papel e Celulose

Atlas Indústria de Eletrodomésticos



Mueller Fogões

Tramontina Teec

Tramontina – Cutelaria

MAGALHAES E DIAS – ADVOCACIA is considered the largest and the most traditional law firm specialized in antitrust law in Brazil. Since its establishment in 1980 as Carlos Francisco de Magalhaes – Advocacia, the firm has been distinguished as the main boutique for competition law in Brazil. The firm is headquartered in Sao Paulo and has had a strategically located branch in Brasilia, the Federal District, for more than 20 years.

Carlos Francisco de Magalhaes, founding partner, is a pioneer in antitrust in Brazil and has been appointed to take part in all relevant governmental commissions related to antitrust in the past 30 years. Senior name partner and managing partner Gabriel Nogueira Dias is recognised as an outstanding attorney and brilliant strategist. He was adviser to the President of CADE (1998) and has led the most complex antitrust cases in Brazil in the past several years. Expert and renowned University of Sao Paulo Scholar Fabio Nusdeo (arbitration and antitrust) is also part of a stellar team composed by outstanding lawyers with well-proven track records. Since 2016, Lucia Ancona Lopez de Magalhaes Dias (consumer law, advertising and marketing law and litigation), Francisco Niclos Negrao (international trade and antitrust), and Cristina Bertaco (civil litigation) also became partners at the firm.

The firm comprises 25 lawyers with four permanent in-house economic advisers. It has the largest team in Latin America fully dedicated to antitrust, competition law and economic regulation.

In addition to its permanent staff, the firm partners with a selected and diversified team of consultants and advisers in antitrust, industrial organisation, antidumping, consumer protection and regulation composed of top-level Brazilian economists.

The firm has offices in Sao Paulo and in Brasilia, where the enforcement agencies and high courts are located, to provide full support to clients.

Main areas of practice
Antitrust/competition: The firm has a proven track record in securing or challenging clearance in Brazil for the most complex mergers, acquisitions, and joint ventures of recent years. Magalhaes e Dias’ lawyers have extensive experience with cartel and restrictive practice investigations by Brazilian antitrust authorities, advising both parties and interveners.

The firm is responsible for a substantial number of cease and desist agreements signed with CADE, including the first administrative cease and desist agreement involving cartel practices (cement sector) under Article 53 of Law 8.884/94 (former Brazilian antitrust law).

The firm is a pioneer and a leading player in conducting cases before courts concerning complex competition law cases, class actions, and advising clients on appeals against decisions from CADE, Regulatory Agencies or State or Federal Prosecutors.

The increase of Brazilian investigations by antitrust authorities and regulatory agencies of possible cartels and restrictive practices indicates that appeals to the judiciary relating to competition law will grow at a rapid pace. The firm also has extensive experience advising companies in antitrust compliance programs and preventive measures. The firm has unique experience in conducting audits and internal investigations for clients.

Consumer law and private litigation: The firm is one of the best prepared law firms in Brazil in these areas, providing clients with all inclusive services – from legal advice on marketing, promotions advertisement – labelling and commercial policy to full class action litigation. The firm offers full assistance on recall cases, handling the administrative work before regulatory and consumer agencies, investigations before the Public-Attorney’s Office and individual consumer litigation.

In addition, the firm has extensive experience with unfair competition, commercial disputes and corporate controversies (contractual or equity-related). The firm also advises several businesses and industry associations on issues related to consumer safety and standards regulation, especially regarding labelling, children’s advertising and food safety.

Additionally, the firm has been highly successful in challenging administrative decisions in Judiciary Courts made by Brazilian competition defence authorities and regulatory agencies, as well as actions relating to investigations of anticompetitive practices and consumer defence problems.

The firm has vast experience before different judicial and administrative bodies (such as the Consumer Protection Department of the Ministry of Justice, the Consumer Protection Office – PROCON, and the National Council of Self- Regulation of Advertising – CONAR).

Trade defence and antidumping: The firm is a pioneer in the practice of trade remedy investigations in Brazil, assisting national and international clients in negotiations and disputes before the competent authorities, ranging from antidumping to safeguard and subsidies investigations, including public interest assessments that may suspend trade remedies. By developing a deep knowledge of the technical aspects of each market, the firm has been highly successful in advising domestic producers, importers, and exporters in pursuing innovative legal strategies. Magalhaes e Dias routinely assists clients regarding matters concerning WTO agreements, tariff and non-tariff barriers, customs, international trade litigation, permanent or temporary requests to alter the Mercosur Common External Tariff (CET), inclusion or exclusion of products in Brazil’s List of Exceptions to the CET, assistance in the negotiation of provisions of trade agreements, among others.

Languages: Portuguese, English, German, Spanish, French, Italian.

Clients: The firm’s client base includes the most important companies within several industries, such as food and beverages, oil and gas, fuel distribution, steel, mining, cement, telecommunications, fertilizers, ethanol, pulp and paper, beauty and household care, electronic and domestic appliances, shopping malls, tobacco, home and personal care and online bookings.

Department Name Email Telephone
Competition and Antitrust Mr. Gabriel Nogueira Dias -
Consumer Ms. Lucia Ancona Lopez de Magalhães Dias -
Trade Mr. Francisco Niclós Negrão -