Antonio Wirta

Céline Moille is a top attorney recognized by Best Lawyers in the practice area(s) of Regulatory Practice. Céline, 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 Céline is held by other top lawyers in the same geographic and legal practice area.

Nuno De Ayala Boaventura is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice and Mergers and Acquisitions Law. Nuno, 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 Nuno is held by other top lawyers in the same geographic and legal practice area.

Philippe Matignon specializes in mergers & acquisitions, and more specifically in private equity and investment capital. He advises French and foreign investment funds in all their LBO and capital investment transactions. Philippe also advises teams of managers in relation to these transactions, and in corporate equity and group restructuring transactions. Philippe Matignon is also involved in restructuring operations and joint ventures on behalf of industrial players.

A graduate of the Paris Institute of Political Studies, Philippe Montanier handles inquiries relative to corporate labour law and brings his expertise to bear more particularly on matters of social security law (retirement and provisions), employee savings schemes, civil service law and the relations with staff representative institutions. He heads the “Compensation & Benefits” team with Philippe Langlois and Juliana Kovac.

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...

Thierry Titone advises corporate clients on the organization of their activities, from procurement to the release for consumption of products and services. He specializes in relations between the industrial and distribution sectors and in the development of networks in France and abroad (e-commerce, franchise, selective network, etc.). He handles as well anticompetitive cases (advice, compliance and litigation), restrictive competition practices, and merger control in support of M&A teams...

Antoine Payen is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Project Finance and Development Practice. Antoine, 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 Antoine is held by other top lawyers in the same geographic and legal practice area.

Sarah Lenoir is a top attorney recognized by Best Lawyers in the practice area(s) of Intellectual Property Law and Privacy and Data Security Law. Sarah, 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 Sarah is held by other top lawyers in the same geographic and legal practice area.

Stéphanie Schweitzer is a top attorney recognized by Best Lawyers in the practice area(s) of Leisure and Licensing Law, Maritime Law and Transportation Law. Stéphanie, who practices law in Paris, France, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stéphanie is held by other top lawyers in the same geographic and legal practice area.

Chair of Winston & Strawn's Paris Corporate Practice, Jérôme Herbet has advised French and foreign private and public corporations as well as private equity funds in connection with various domestic and cross-border transactions, including mergers and acquisitions and stock exchange transactions. He also regularly advises companies for the purposes of corporate finance transactions, including private placements and complex financing structures. Over time, he has participated ...