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Jeantet

Paris,
THE BEST LAWYERS IN FRANCE™ AWARDS:: 29 BEST LAWYERS: ONES TO WATCH IN FRANCE™ AWARDS:: 5 BEST LAW FIRMS® AWARDS:: 37
33 Attorneys

About Jeantet

Our Attorneys (33)

Olivier Lyon Lynch

Olivier Lyon Lynch

(30)

N/A

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Wyssam Mansour

Wyssam Mansour

(33)

N/A

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Caroline André-Hesse

Caroline André-Hesse

(35)

N/A

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Office Locations

Paris, FR Headquarters

11, rue Galilée, Paris 75116

33 1 45 05 80 08

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Kyiv, UA

4, Volodymyrska Street, Kyiv 01001

380 44 206 09 80

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Casablanca, MA

2 Rue Zaidane, Casablanca 20170

212 5 22 94 09 96

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Leadership Team

Catherine Saint Geniest

Co-Managing Partner

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Karl Hepp de Sevelinges

Co-Managing Partner

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Awards & Recognition

Featured Awards

THE BEST LAWYERS IN FRANCE™ AWARDS: 29

BEST LAWYERS: ONES TO WATCH IN FRANCE™ AWARDS: 5

BEST LAW FIRMS® AWARDS: 37

Key Contacts

Yaëlle Medioni

Head of Marketing, Communications & Business Development

+33 (0)1 45 05 82 41

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Notable Clients

Jeantet advises major national and international groups in the industrial and service sectors, banks and financial institutions, investment funds, SMEs, the government, local authorities and professional organisations.OUR ONGOING STRATEGIC MONITORINGOur Infothèque (resources library) is a cornerstone of our firm’s development and know-how. The tools used enable our lawyers to keep abreast of changes in the business sectors and markets in which our clients operate in order to anticipate any potential issues these may pose. Our librarians create and manage many tools for use by our lawyers and clients in order to pass on knowledge and information in real time. Our databases, information gathering and media monitoring systems, newsletters, and legislative, regulatory and jurisprudential monitoring services are also made available to our clients. The wide range of transactions we carry out and our commitment to transparency towards our clients have prompted us to establish permanent monitoring tools to eliminate any risk of conflict of interest.OUR CONFERENCES, DEBATES AND TRAININGOur lawyers share the latest legal and legislative news in addition to their experiences, by organising training sessions for their clients on topical issues and major French and European regulatory developments.Jeantet advises major national and international groups in the industrial and service sectors, banks and financial institutions, investment funds, SMEs, the government, local authorities and professional organisations.OUR ONGOING STRATEGIC MONITORINGOur Infothèque (resources library) is a cornerstone of our firm’s development and know-how. The tools used enable our lawyers to keep abreast of changes in the business sectors and markets in which our clients operate in order to anticipate any potential issues these may pose. Our librarians create and manage many tools for use by our lawyers and clients in order to pass on knowledge and information in real time. Our databases, information gathering and media monitoring systems, newsletters, and legislative, regulatory and jurisprudential monitoring services are also made available to our clients. The wide range of transactions we carry out and our commitment to transparency towards our clients have prompted us to establish permanent monitoring tools to eliminate any risk of conflict of interest.OUR CONFERENCES, DEBATES AND TRAININGOur lawyers share the latest legal and legislative news in addition to their experiences, by organising training sessions for their clients on topical issues and major French and European regulatory developments.

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Reviews

4.5 / 5

49 Reviews

N

Nathaniel Conn

Feb 02, 2026

Exactly what I needed after my legal issue in undefined - Jeantet was a lifesaver

I was skeptical about hiring a lawyer for my Regulatory Practice law issue in undefined, but Jeantet changed my mind completely. They were professional, responsive, and most importantly, they got resu...

J

Jill Haley

Feb 02, 2026

A huge weight off my shoulders thanks to the amazing work of Jeantet

Jeantet has been doing this since a long time ago, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal matters in undefined. Their ex...

R

Ruben Hintz

Feb 02, 2026

The absolute best in undefined for Regulatory Practice law - and I mean that from the bottom of my heart

I was really stressed about my case in undefined, but Jeantet made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every detail with s...

S

Sadie Schmitt

Feb 02, 2026

A very good experience overall with the entire team at Jeantet's legal practice

Solid experience overall with the law firm of Jeantet. They know Regulatory Practice law inside and out and gave me great advice. Very helpful and got the job done exactly as they said they would. If...

J

Joy Swaniawski-Fadel

Feb 02, 2026

Exactly what I needed after my legal issue in undefined - Jeantet was a lifesaver

I don't usually write reviews, but the help I got from Jeantet during my Regulatory Practice law case in undefined deserves to be shared. It was a messy situation, and I was getting nowhere on my own....