Our Team
Our strength lies in our team, composed of around ten seasoned professionals, split between Paris and Dubai, with backgrounds in leading law firms and advisory practices. Bringing together French, UAE and international tax expertise, they operate as a single team across both offices and across every jurisdiction our clients are active in.
Nicolas Duboille
Managing Partner
Nicolas Duboille is one of the Founders of SUMERSON and the current managing partner of the firm. He advises multinational groups, private equity funds, sovereign entities, family offices and high-net-worth individuals on high-stakes international tax matters. Admitted to both the Paris and New York bars, he brings more than 20 years of experience in multi-jurisdictional structuring, M&A, fund formation, real estate and energy assets, among other areas.
Before founding SUMERSON, Nicolas headed the tax departments of Simmons & Simmons and Granrut, built the tax practice of Latournerie Wolfrom, and practised at leading international law firms, including Jones Day and Hogan Lovells.
Nicolas studied law and taxation in France, at Université Paris II Panthéon-Assas (Master 2 in Taxation), and in the United States, at New York University (NYU) School of Law (LL.M. in International Taxation) and Harvard University, Kennedy School of Government (Comparative Tax Policy and Administration, ComTax).
He lectures on international taxation at ESCP Business School and serves on NYU's International Practice Council.
Notable Engagements
A selection of anonymized landmark matters that reflect the depth and ambition of our practice.
