Antoine Bonnasse > BDGS Associés > Paris, France > Lawyer Profile

BDGS Associés
75008 PARIS

Work Department

Mergers & Acquisitions and Corporate Law


Partner specialising in complex mergers and acquisitions (listed and unlisted companies), corporate and financial engineering, industrial restructurings, securities law, private equity and M&A litigation.

Recent work includes advising: Icade on the sale of Icade Santé to Primonial REIM; Coty on its secondary listing on Euronext Paris; Caisse des Dépôts et Consignations (CDC) on the creation of “New Suez”, by a consortium composed of Meridiam, Global Infrastructure Partners (GIP) and Groupe CDC, constituted from the assets acquired from Veolia and Suez in the context of Veolia’s public offer for Suez; Sopra Steria on the sale of Sopra Banking Software to Axway (and on the related transactions with Sopra GMT and One Equity Partner) and on its acquisition of CS Group, listed on Euronext Paris; Bouygues Telecom on several notable joint ventures (in particular with Cellnex, Phoenix Tower International and Vauban Infrastructure Partners) in order to deploy and operate fibre optic and 5G networks in France; the French State (Agence des Participations de l’État) on the recapitalisation of Air France-KLM and subsequent share capital increases; Bpifrance on the reorganisation of the shareholding in Paprec; Sagard on its acquisition of the Agence pour la diffusion de l’information technologique (ADIT); Publicis on its joint venture with Carrefour in the retail media sector in continental Europe and Latin America; Butler Industries in its investment in MoMA, the majority shareholders of Evolis in the transfer of their shares (and the subsequent tender offer) to Assa Abloy; and Safran on its public offer for Zodiac Aerospace.


Before founding BDGS Associés in 2013, Antoine Bonnasse was a partner since 1996 at Gide Loyrette Nouel where he started his career in 1986. He was subsequently seconded, as legal adviser, to the Economic Development Mission of the French Embassy in Washington DC (1987-1988).


French and English


Comité Juridique de l’Association Nationale des Sociétés par Actions.


Paris Bar (1987)
Graduated from Sciences Po (1984), Paris II Assas (1985) and Paris IX Dauphine (1986)

Lawyer Rankings

France > Mergers and acquisitions

(Hall of Fame)

Antoine Bonnasse BDGS Associés

BDGS Associés fields ‘a high-level team with exceptional legal technique combined with leading transactional experience’. The group acts for CAC 40 companies as well as state-owned companies and investors. The firm has strong credentials in public and private M&A transactions as well as corporate reorganisations, and recently advised on high-profile deals across various sectors and industries (internet, renewables, transport, telecoms, finance). It is also the go-to-firm for high-end work involving the public sector with Jean-Emmanuel Skovron an expert in this area. Skovron jointly heads the practice alongside the highly regarded Marc Loy, Antoine Bonnasse and Youssef Djehane. Other key names include Thomas MéliLucile Gaillard , François BaylionJérôme du Chazaud and David Andréani.