Grégory Chastagnol
About Grégory Chastagnol
Grégory Chastagnol is a lawyer based in Paris, FR and has been recognized in The Best Lawyers in France™ since 2020. Grégory Chastagnol is recognized in the following practice areas:
- Paris, France
- Labor and Employment Law
- Litigation
Current Firm: FACTORHY Avocats
Location: Paris, FR
Nearby Lawyers
Nana Botchorichvili is a top attorney recognized by Best Lawyers in the practice area(s) of Privacy and Data Security Law. Nana, who practices law in Paris, France, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nana is held by other top lawyers in the same geographic and legal practice area.
Following a career in the private sector and in law firms, Jean-Jacques Uettwiller founded UGGC Avocats – with other lawyers – in 1993. From the onset, his foremost speciality is the law of company transfers (what some posers call M&A), providing advice or assisting with litigation, but also deal with the management of the personal assets of wealthy families. In fact, his practice is both international and multidisciplinary at the same time since it covers international arbitr...
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...
Vincent Schmitt’s area of practice covers tax advice and tax litigation regarding both corporate and individual clients. He is mainly involved in international operations (including transfer pricing) and complex corporate structuring, domestic and cross border mergers and acquisitions. He also advises international families with their investments in France or abroad and for international private tax planning. His practice area also covers all aspects of French tax litigation (defence fo...
Associate attorney at PwC Law Firm for many years, Isabelle SAVIER-PLUYETTE has joined Cornet Vincent Segurel in 2018 to bring her technical expertise in international mobility of human resources and managers.With almost 30 years of experience, Isabelle advises and supports French and foreign groups about mobility and its strategic and operational aspects and she has a great experience in international projects.Across a wide range of business areas, she helps managers and companies in the ind...
Marie-Pierre Maître assists large industrial groups and SMEs / SMIs in litigation and also in advice for their projects and their development strategy, in particular in their relations with the administration, their actions to anticipate regulations and their implementation and regulatory conformity. She works in industrial environment law (classified installations, polluted sites and soils, waste, chemicals, renewable energy, etc.) for promoters, industrialists in the world of aeronaut...
Sophie advises and litigates on behalf of French and foreign clients on all aspects of Employment and Social Security law. With 20 years of experience, Sophie benefits from a highly experienced practice in all issues of labor law and social security and in the human resources aspects of domestic and cross-border mergers & acquisitions. Sophie advises her clients on the employment aspects of M&A and private equity transactions, corporate reorganization and downsizing, restructuring, co...
Emmanuel MERCINIER-PANTALACCI has been a lawyer since 2004, was a Secretary of the pleading competition of the Paris Bar Association and is first of all an undisputed criminal lawyer . He is now also a recognised expert in the defence of lawyers, in arbitration, deontological and even criminal matters. In the field of criminal business law, he assists companies and their officers, whether suspects or victims, in matters involving criminal labour law, criminal stock market law, criminal tax la...
Yam Atallah is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Mergers and Acquisitions Law and Private Equity Law. Yam, who practices law in Paris, France, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Yam is held by other top lawyers in the same geographic and legal practice area.
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Build Your Legal Practice with Effective Online Networking
by Jamilla Tabbara
How thoughtful online networking supports sustained legal practice growth.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer
Common-Law Marriage in Indiana: Are You Legally Protected?
by Laurie Villanueva
Understanding cohabitation rights and common-law marriage recognition in Indiana.