Firm PROFILE
Dannemann Siemsen
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Dannemann Siemsen

Global 2026

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Rankings

Global

Leading firm in Global 2026

Overview

Provided by Dannemann Siemsen

  • Managing Partners: Peter Dirk Siemsen, Luiz Henrique O. do Amaral, Gustavo de Freitas Morais, Peter Eduardo Siemsen, Joaquim Eugênio Goulart, Marc Hargen Ehlers

    Number of partners: 74

    Number of other lawyers: 111

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

    Firm Overview:

    With 125 years’ experience, Dannemann Siemsen assists national and international clients in the advisory area and in strategic lawsuits of a civil/business nature, acting in various fields of law. The firm's successful trajectory has been guided by a strong social commitment, which includes investments in inclusion projects, policies to promote diversity and sustainable practices. In addition to being leaders in Intellectual Property in Latin America, Dannemann Siemsen is a reference standard in strategic litigation and in the area of legal advice. Among over 800 employees in Dannemann Siemsen's offices in Rio de Janeiro, São Paulo, Brasília and a partnership in Montevideo, Uruguay, the firm assembles teams of highly trained multidisciplinary professionals with solid academic backgrounds, which allows the firm to develop innovative and creative solutions for each case. Its team of lawyers has extensive experience before all Brazilian courts and public bodies, including developing approaches that are frequently cited by the higher courts. The firm acts in repetitive cases to complex lawsuits, valuing, whenever possible, alternative means of dispute resolution, such as mediation and arbitration.

    Main Areas of Practice

    Intellectual Property:

    With a team of professionals recognised nationally and internationally, the firm is a reference point in IP law for offering a first-rate service in patent filings, trademark registrations, design protection, copyright, trade secrets and in the entire process of software registration. The firm's experience allows it to develop the most comprehensive strategies in the protection of patents, from the first application to opposition after granting, ensuring the best legal backing supported by a multidisciplinary team of electrical, electronic, mechanical, chemical and telecommunications engineers, pharmacists and biologists, among others. Through the sector dedicated to the protection of trademarks, the firm also advises clients from searches to appeals, with a strategic thinking for trademark portfolio management and supervision structures, including on digital media, with constant monitoring of the changes in INPI's internal regulations and administrative decisions.

    Litigation:

    The area has a large and multidisciplinary team of partners and attorneys, with long and valuable experience before all levels of the Brazilian courts and public agencies. The team of young and talented lawyers also build up a modern view to work hard in disruptive cases. The firm's rate of success is extremely high from the most simple case, to complex matters, not only in court actions, but also in alternative dispute resolutions (mostly arbitrations and mediations), class actions, regulatory and administrative proceedings. To highlight some of the dedicated teams the firm can mention its strong intellectual property group of litigators and technicians, working side by side in the most important IP leading cases in the country, handling with contractual, franchise, real-state, corporate, consumer protection law, telecom, civil law, environmental law and tax litigations. The major differential of its professionals are availability, adaptability, quality and focus on each client, in order to provide the best counselling and to reach the most favorable results.

    Consumer Relations:

    This area arose from a growing demand from companies for an intelligent management and structured handling of mass litigation. The firm starts from a strategic vision of prevention in consumer relations and mediation between companies and consumers, with a focus on the preservation of the image and brand of clients with their public. In tune with the main innovations in this sector, the firm offers a differentiated service for clients, with the automation of lawsuits and the capture of demand in the distribution and flow of administrative control in the consultative, judicial litigation, administrative litigation and business prevention areas.

    Contracts:

    The firm is a reference point in the area of licensing agreements for intellectual property, the purchasing of technological knowledge and franchises, which need to be annotated at INPI to allow the remittance of remuneration to the foreign party, qualify the licensee for tax deduction of the amounts paid and produce effects for third parties. The firm's lawyers assist the client from the start of negotiations, preparation and/or analysis of the agreement, until the actual execution, evaluating all aspects of the negotiation until all the necessary governmental authorisations.

    Law & Technology:

    Computer programs fit into the concept of intellectual works and are subject to copyright protection. The protection afforded by Brazilian legislation to software is international in scope, including all countries that are signatories to the Berne Convention. The firm's specialised team advises clients throughout the registration process at the BPTO, including the preparation of the formal documentation, selection of the technical data required, monitoring of the process until the issue and confirmation of the Registration Certificate, as well as the verification of the legal instruments related to the development and creation of the program, such as employment contracts and service agreements.

Ranked Offices at Dannemann Siemsen

Provided by Dannemann Siemsen

Brazil - Head office

Rio de Janeiro

Av Rodolfo de Amoedo 300 Barra da Tijuca , Rio de Janeiro - RJ, Rio de Janeiro, Brazil, 22620-350, Rio de Janeiro - RJ

Brazil

Rio de Janeiro

Rua Santa Luzia, 651, 17º Andar, Rio de Janeiro - RJ, Rio de Janeiro, Brazil, 20021-903, Rio de Janeiro - RJ


Sao Paulo

Av Indianópolis 739, Moema, 04063-000, São Paulo - SP, Sao Paulo, Brazil, 04063-000, São Paulo - SP

Ranked Departments at Dannemann Siemsen (2)

Brazil

  • Intellectual Property: Trademark, Copyright & Trade Secrets

    3 Ranked Lawyers

    View profile

Ranked Individuals at Dannemann Siemsen (7)

Brazil

  • Profile image of Gustavo de Freitas Morais
    Gustavo de Freitas Morais

    Intellectual Property: Patent

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  • Profile image of Joaquim Eugênio Goulart
    Joaquim Eugênio Goulart

    Intellectual Property: Patent

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  • Profile image of Luiz Henrique do Amaral
    Luiz Henrique do Amaral

    Intellectual Property: Trademark, Copyright & Trade Secrets

    View profile
  • Profile image of Cândida Ribeiro Caffé
    Cândida Ribeiro Caffé

    Intellectual Property: Trademark, Copyright & Trade Secrets

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  • Profile image of Filipe Fonteles Cabral
    Filipe Fonteles Cabral

    Intellectual Property: Trademark, Copyright & Trade Secrets

    View profile

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