OYAT > Paris, France > Firm Profile

164 rue du
Faubourg Saint-Honoré
75008 Paris

France > Industry focus: IT and internet 

OYAT entered the market in January 2022 following its launch by former partners of Latournerie Wolfrom Avocats. Marie-Hélène Tonnellier is the name to note.

France > Administrative and public law

OYAT entered the market in early 2022. Laurent de la Brosse is the key name.

France > Industry focus: Telecoms 

Marie-Hélène Tonnellier is the key name at OYAT, which was established in January 2022.

France > Private equity: venture/growth capital

OYAT is a new law firm established in January 2022 by former partners of Latournerie Wolfrom Avocats. Founding partner Caroline Basdevant-Soulié has extensive experience in M&A and private equity, advising companies on all stages of the life cycle, including initial and subsequent fundings, exits, and disposals.

Oyat is a law firm with a pioneering spirit, a pool of talent bringing together professionals recognized for their excellence in M& A, private equity, public law, environmental law, energy law, digital and IP, commercial law, real estate and litigation.
Everyone works with agility, in France and abroad, relying on an extensive network of experts located mainly in Europe, Asia and the United States to provide each client with the strategic and operational support required.
Like the oyat, the agile and robust “binder plant” that ensures the cohesion, unity and durability of the dune in the face of the elements, this collective intelligence is a real strength. Combined with an entrepreneurial spirit, it allows the firm to project itself into the challenges of tomorrow with a vision
of committed lawyers, constantly attentive to economic, societal and technological changes. At Oyat, each client has the opportunity to build a dedicated team of multi-specialists by combining
the expertise, synergies and flexibility necessary to address its complex issues. Its lawyers, experienced in teamwork in project mode, practice their profession for, but also and above all, alongside their clients. Conceiving their role as a partner and strategy advisor, they are capable,through their experience, of intervening both in anticipating their clients’ problems and in helping them define the best strategy on innovative or defensive issues requiring listening, understanding,tenacity, rigor and competitive spirit.
Attentive to a changing world, its partners seek to guide and accompany each Oyat lawyer in a spirit of ambition and surpassing oneself, but also of solidarity and listening.

Paris Basdevant-Soulié Carolinec.basdevant-soulie@oyat.law00 33 1 81 22 40 11
Paris Tonnellier Marie-Hélènemh.tonnellier@oyat.law00 33 1 81 22 40 10
Paris De la Brosse Laurentl.delabrosse@oyat.law00 33 1 81 22 40 12
Caroline Basdevant-Soulié photoMaitre Caroline Basdevant-SouliéPartner
Romain Canot photo Romain CanotPartner
Guillaume Ledoux photo Guillaume LedouxPartner
Marie-Hélène Tonnellier photoMrs Marie-Hélène TonnellierMarie-Hélène Tonnellier is the head of the Digital/IP department and advises on…
Laurent de la Brosse photo Laurent de la BrosseMember of the Paris Bar since 1999, Laurent de La Brosse co-founded…