Guillaume will join A&O from Shearman & Sterling, where he has been a partner since 2011 and led the Paris M&A team between 2016 and 2022. He qualified over 22 years ago, and is widely recognised for his technical expertise and extensive experience in advising on both public and private M&A and private equity funds, and is considered to be a leading corporate partner in France.

Hervé Ekué, managing partner of the Paris office, commented: “We are delighted to welcome Guillaume to our team to help us continue to expand our offering in Paris and beyond. He is a highly regarded practitioner with a strong track record and a deep understanding of the financial institutions and of the private equity sector. His expertise and network will complement our existing offering and enable us to provide our clients with the best possible service and solutions in this dynamic and competitive market.”

Dirk Meeus, partner and global co-head of the Corporate practice added: “Guillaume’s appointment reflects our strategic ambition to grow our corporate practice in Paris and to reinforce our position as a leading firm for complex and innovative transactions in France and beyond. He will also contribute to our global private equity network, which spans across Europe, Asia, the US and the Middle East.”

Guillaume Isautier added: “I’m delighted to be joining the team at A&O. I’m looking forward to bringing my expertise to A&O’s client base and working with the highly-regarded team in the Paris office and beyond.”

Allen & Overy has a market leading team of over 880 M&A lawyers, based in over 40 offices.