Jean-Sébastien Mariez
About Jean-Sébastien Mariez
Jean-Sébastien Mariez is a lawyer based in Paris, FR and has been recognized in The Best Lawyers in France™ since 2020. Jean-Sébastien Mariez is recognized in the following practice areas:
- Paris, France
- Gaming Law
- Information Technology Law
- Litigation
- Regulatory Practice
- Technology Law
Current Firm: Momentum Avocats
Location: Paris, FR
It takes just a few minutes to optimize your profile for prospective clients and lawyers ready to refer.
Log in to your account or continue as a guest to view annual subscription pricing.
Nearby Lawyers
Catherine Castro has strong expertise in the real estate sector: acquisitions/takeovers of completed or in future state of completion buildings, acquisitions/takeovers of immovable assets portfolios, sale and leaseback, leases (commercial leases, including in future state of completion), construction and property development.Catherine Castro specializes in all kinds of assets: offices, warehouses, complex buildings. She participated in numerous transactions in the hotel industry in France and...
Sébastien Fleury is a lawyer recognized by Best Lawyers in the practice area of Insolvency and Reorganization Law. Sébastien practices law in Paris, France Best Lawyers has recognized Sébastien Fleury since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Sébastien Fleury is held by other lawyers.
Marine Hardy is a lawyer recognized by Best Lawyers in the practice area of Litigation. Marine practices law in Paris, France Best Lawyers has recognized Marine Hardy since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Marine Hardy is held by other lawyers.
Alexandre Reynaud is a Member of the Paris and New York Bars and founder of TALMA Dispute Resolution. His practice focuses on international arbitration as well as commercial and corporate litigation. Alexandre has acted as counsel in numerous arbitration proceedings under the auspices of leading arbitral institutions (International Court of Arbitration of the International Chamber of Commerce (ICC), London Court of International Arbitration (LCIA), International Center for Settlement of Inves...
Gaëlle MERLIER is co-head of the Life Sciences Department. Gaëlle’s expertise spans advisory work on regulatory and contractual matters as well as the management of complex, serial litigation in commercial matters and health product liability. She also assists her clients during criminal investigations and in their dealings with the health authorities (particularly in the context of ANSM, DGCCRF, DDPP inspections, etc.). Furthermore, Gaëlle advises her clients on mergers-...
Julie FERRARI practices labour and criminal law (criminal business law, criminal health law and criminal labour law). She also has expertise in the field of corporate social responsibility (CSR), particularly in the areas of labour law and criminal law. She holds a post-graduate (DEA) degree in criminal law and criminal policies in Europe (Paris I University, 1997) and she has been a member of the Paris Bar since 1999. Before founding the VIGO Law Office with Emmanuel Daoud and Christine Carp...
Thomas Maitrejean is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law, Mergers and Acquisitions Law and Private Equity Law. Thomas practices law in Paris, France Best Lawyers has recognized Thomas Maitrejean since 2017. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Thomas Maitrejean is held by other lawyers.
Member of the UGGC Avocats’ Restructuring team for more than 15 years, Marine Simonnot joined the firm as a trainee lawyer before becoming an associate, consultant and then partner in 2020. She advises clients on all aspects of insolvency law, from the prevention of difficulties to their treatment in the context of collective proceedings, both as counsel and in litigation. Marine supports companies of all sizes, their managers and/or shareholders, investment funds, creditors, legal repr...
Marie Piot is a lawyer recognized by Best Lawyers in the practice area of Insurance Law. Marie practices law in Paris, France Best Lawyers has recognized Marie Piot since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Marie Piot is held by other lawyers.
Founding partner of ATURQUOISE Law Firm, Anne-Marie Pecoraro joined UGGC Avocats in 2020. She is an intellectual property, new technologies and entertainment law expert, specializing in advertising, literary and artistic property and trademark law. She is also known for her legal knowledge in designs and unfair competition (at a national and international scale). She has built an expertise in service contracts preparation and negotiation and regularly assists her clients during litigation cas...
Explore and Learn
What AI Visibility Means for Lawyers
by Josh Rupall and Bryan Driscoll
AI tools increasingly interpret lawyers public information. Clear, consistent and credible sources help ensure they describe legal expertise accurately.
The Best Lawyers in Canada 2027: Recognizing the Nation's Top Legal Talent
by Jamilla Tabbara
Honoring established leaders and rising practitioners across Canada's legal profession.
Recognizing Legal Leaders: The 2027 Best Lawyers Awards in Australia, Japan and Singapore
by Jamilla Tabbara
Market drivers, diversity trends and the elite practitioners shaping the legal landscape.
2027 Best Lawyers Awards: Honoring Excellence in the Legal Profession
by Jamilla Tabbara
Recognizing the outstanding attorneys leading top practice areas nationwide.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Announcing the 2027 Best Lawyers Awards: Austria, Germany and Switzerland
by Jamilla Tabbara
Celebrating the legal professionals throughout Central Europe.
The Legal Teams Behind the Blake Lively–Justin Baldoni Settlement
by Grace Greer
A closer look at the legal teams and attorneys involved in the Blake Lively–Justin Baldoni litigation and its resolution.
The Best Lawyers in France 2027: Peer-Reviewed Excellence
by Jamilla Tabbara
Seventeen editions of peer trust, a growing profession and a dynamic legal market.
What Is a Quitclaim Deed? Uses, Risks and When to Get Help
by Bryan Driscoll
A quitclaim deed can be one of the fastest ways to transfer property but knowing when it's the right tool and when it isn't, can save you from serious legal and financial headaches down the road.