20 Nov 2025

Stibbe Advises Grant Thornton Advisors on Addition of Grant Thornton Luxembourg to Transatlantic Platform

"Stibbe advised Grant Thornton Advisors on the addition of Grant Thornton Luxembourg to its transatlantic professional services platform. The platform, spanning the Americas, Europe and the Middle East, is backed by an investor group led by New Mountain Capital (approx. USD 55bn AUM). The cross-border deal required regulatory clearances in Luxembourg."

Stibbe advised Grant Thornton Advisors on the addition of Grant Thornton Luxembourg to its transatlantic professional services platform, acting for Grant Thornton Advisors in the transaction. The Grant Thornton Advisors platform includes firms spanning the Americas, Europe and the Middle East and is backed by an investor group led by New Mountain Capital, a New York–based investment firm with approximately USD 55 billion in assets under management. The transaction required navigating a complex regulatory landscape and securing the necessary supervisory clearances from the relevant authorities in the Grand Duchy of Luxembourg. This cross-border transaction demonstrates Stibbe's deep expertise in advising on sophisticated M&A transactions in the professional services sector, particularly those involving regulated entities and multi-jurisdictional regulatory considerations. Stibbe represented Grant Thornton Advisors with a team composed by: Bernard Beerens, Tom Storck, Guillaume Bouriaud, Sébastien Dauber, Nicolas Pradel, Guillaume Collé, Caroline Debue, Emeline Maricq, Cristina Pasion Pereda.
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