Guillaume Kuperfils > Mayer Brown > Paris, France > Lawyer Profile
Mayer Brown Offices

10 AVENUE HOCHE
75008 PARIS
France
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Guillaume Kuperfils

Work Department
Corporate & Securities
Position
Partner
Career
Admitted to the Paris Bar, Guillaume Kuperfils is the office practice leader of the Paris Corporate & Securities department. Guillaume also co-leads Mayer Brown’s global Private Equity industry group. He previously served on Mayer Brown’s Partnership Board.
He focuses his practice on mergers & acquisitions and private equity. Guillaume regularly represents international firms and private equity funds in their acquisitions, leveraged buyouts, joint ventures and governance issues, frequently with a cross-border dimension. He has particular experience advising private equity sponsors on their acquisition of stakes in listed companies (P to P’s, Pipes).
Guillaume was also a board member of French major league professional soccer club Paris Saint-Germain (2006 – 2011).
Languages
French, English
Lawyer Rankings
France > Private equity: LBO
Mayer Brown‘s private equity, M&A and banking and finance offerings were significantly bolstered by the arrival of the team from AYACHE, which came into effect in January 2025. Key contacts at the combined team include corporate and securities group lead Guillaume Kuperfils, Olivier Aubouin, Bernard Ayache, Olivier Tordjman and Gwenaëlle de Kerviler.
Lawyer Rankings
Top Tier Firm Rankings
Firm Rankings
- Dispute resolution: International arbitration
- EU, competition and distribution
- Industry focus: Energy
- Insolvency
- Private equity: LBO
- Real estate
- Tax
- Banking and finance: transactional work
- Compliance
- Derivatives and structured finance
- Dispute resolution: Commercial litigation
- Employment
- Project finance
- Mergers and acquisitions