Régis Mahieu
About Régis Mahieu
Régis Mahieu is a lawyer based in Paris, FR and has been recognized in The Best Lawyers in France™ since 2026. Régis Mahieu is recognized in the following practice area:
- Paris, France
- Information Technology Law
Current Firm: Mermoz Avocats
Location: Paris, FR
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Daouda Ba is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Daouda, who practices law in Paris, France, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Daouda is held by other top lawyers in the same geographic and legal practice area.
Cyrille Franco is a top attorney recognized by Best Lawyers in the practice area(s) of Labor and Employment Law. Cyrille, who practices law in Paris, France, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Cyrille is held by other top lawyers in the same geographic and legal practice area.
Mr. Autret regularly represents clients in all aspects of their disputes, particularly with regard to M&A-related disputes, commercial and corporate litigations, stock market and securities disputes, bankruptcy litigation, corporate restructurings, directors’ liability, state aids and white collar crime. He has been heavily involved in numerous “bet-the-company” litigations in which the disputes have had high levels of commercial and financial risk and prominent media ex...
Hélène Parent is a Private Equity M&A partner and a member of the Firm’s Private Capital industry group. Dual-qualified in Paris and Madrid, Hélène’s practice focuses primarily on highly regulated industries, including technology and life sciences. Hélène advises private equity funds, family offices, and fast-growing companies on sophisticated private equity matters, with a particular emphasis on venture capital, growth investments, an...
Francois Ouairy is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Francois, who practices law in Paris, France, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Francois is held by other top lawyers in the same geographic and legal practice area.
Founding Partner of BG2V since 2010 - Member of the Paris Bar since 2002 Experience : BG2V, Franklin, Deloitte & Touche Legal ad Taw, Tax Management of the Crédit Lyonnais. Education : DESS of International Taxation, University of Paris II Panthéon Assas, Higher Institute of Interpreting and Translation. Practice areas : Jean-Marc specializes in corporate taxation, mergers and acquisitions, LBOs, transaction taxation, property taxation and executive taxation. He als...
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...
Jean-Baptiste Santelli is a top attorney recognized by Best Lawyers in the practice area(s) of Project Finance and Development Practice. Jean-Baptiste, who practices law in Paris, France, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jean-Baptiste is held by other top lawyers in the same geographic and legal practice area.
A member of the Paris Bar since 1989, Stéphane PERRIN graduated from the Faculties of Law of PARIS XI and PARIS II Universities, where he gained a DEA postgraduate qualification in Intellectual Property. He also graduated from PARIS II Faculty of Law’s Institute of Legal Studies. He began his career within the law firms DS Avocats (PARIS) and DUBARRY, SERVAN-SCHREIBER & WEIL (PARIS then BRUSSELS), then as a partner in SCP FLAMBARD & Associés, before creating his ow...
BG2V founding Partner (2010), Admitted to the Paris Bar since 1999. Expertise : Criminal Law Experience : BG2V, Former Secretary of the Internship Conference, Metzner & Partners, Salès Vincent & Associatess, Townsend Townsend & Crew (San Francisco). Education : DEA in Private International Law, University of Paris I Sorbonne. Practice areas : Karim is primarily involved in the criminal liability of the legal persons of their leaders, in financial, sto...
Explore and Learn
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.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Can a Green Card Be Revoked?
by Bryan Driscoll
Revocation requires a legal basis, notice and the chance to respond before status can be taken away.
How Far Back Can the IRS Audit You?
by Bryan Driscoll
Clear answers on IRS statutes of limitations, recordkeeping and what to do if you are under review.
Musk v. Altman: The Lawyers Behind the Case
by Jamilla Tabbara
Meet the Trial Lawyers Shaping One of AI's Biggest Legal Disputes.
Can You File Bankruptcy on Credit Cards
by Bryan Driscoll
Understanding your options for relief from overwhelming debt.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
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.
How AI Is Changing the Way Clients Find Lawyers
by Jamilla Tabbara
Best Lawyers CEO Phil Greer explains how AI-driven search tools are reshaping legal marketing and why credibility markers matter.