Close to its clients, FAJGENBAUM defends, protects, and anticipates their needs.

On a daily basis, we advise individuals, companies, federations, public institutions and local authorities in creating, promoting and defending their rights. We develop tailored innovative strategies for our clients. 

Our recognised expertise and experience frequently bring us before French and European courts, as well as regulatory and competition authorities.

With boldness and passion, alongside Fabienne Fajgenbaum, our partners Thibault Lachacinski, Raimbaut Lacoeuilhe and Judith Harari combine rigor, commitment and strategic vision to secure the interests of our clients and defend their rights.

Intellectual property

Protecting, promoting, and defending immaterial assets

As a leading reference in trademark law, patent law, copyright law, design law and geographical indication law, FAJGENBAUM assists its clients in creating and securing their rights, and contributes to promoting them.

FAJGENBAUM ensures the protection of its clients’ rights both amicably and in litigation before civil, administrative, and criminal courts.

Sports law

Building and securing sport actors’ rights

For over 40 years, FAJGENBAUM has been supporting athletes, clubs, federations, committees, and broadcasters in building and protecting their competitions, contracts, and partnerships.

Competition Law, distribution Law & regulation

Mastering the rules of the economic game

Compliance with competition rules and distribution litigation are two activities at the very heart of FAJGENBAUM. The Firm represents its clients as plaintiffs and defendants before competition authorities and commercial courts in cases involving antitrust and restrictive practices.

The Firm supports its clients in national and international business transactions, such as mergers and acquisitions. It coordinates legal processes in France and abroad to obtain prior clearances under merger, foreign direct investment (FDI) and foreign subsidy control rules.

Artificial intelligence & new technologies

Anticipating the legal challenges of digital technology and supporting the actors of tomorrow

FAJGENBAUM combines unique expertise and innovative capabilities to advise its clients in the necessary legal transition imposed by the AI revolution to defend their rights and interests to address technological risks and threats, and assist them with AI compliance as well as with data protection.

Our values

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Excellence & expertise

Each of our clients benefits from our cutting-edge legal expertise and in-depth, cross-disciplinary knowledge of the relevant business sectors.

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Commitment & determination

We defend our clients’ interests with strength and conviction. Technical expertise and strategic vision are FAJGENBAUM’s watchwords.

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Agility & reactivity

To address constantly changing environments, we draw on our rich experience and design pragmatic and innovative solutions tailored to contemporary challenges.

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Innovation & anticipation

We are at the forefront of many areas of law, adapting to economic and technological evolutions to understand our client’s needs and expectations, and to protect and secure their rights.

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Multidisciplinary team & 360° approach

Our specialized lawyers combine their expertise to offer comprehensive, cross-disciplinary service in constant cooperation with our clients.

Discover Our Team!

Why Choose


Fajgenbaum