Ms Stéphanie Beghe Sonmez > Paksoy > Istanbul, Turkey > Lawyer Profile


Work Department

Mergers and Acquisitions, Corporate and Commercial, Data Protection Compliance, Insurance and Private Pensions, Intellectual Property and Information Technology


Stéphanie Beghe Sönmez is the partner, regularly advises on foreign law aspects of cross-border mergers and acquisitions, private equity investments, joint ventures, and corporate restructuring for a variety of large foreign and Turkish industrial players and financial investors. She has developed key experience advising investors in diverse sectors in Turkey, including banking and financial services, insurance and private pensions, technology, industry and energy. Stéphanie also has significant expertise in intellectual property and information technology matters, upon which she advises clients in the context of mergers and acquisitions, joint ventures, capital markets, licensing, distribution and regulatory compliance.


Before joining Paksoy in 2010, Stéphanie was a partner at the Istanbul office of a London-based international law firm. Prior to relocating to Turkey in 2006, she practiced for eight years with the Paris office of a major US-based international law firm.


English, French, Turkish


International Bar Association, Paris Bar Association, New York Bar Association


University of Paris II-Panthéon Assas, French Intellectual Property, Post-graduate degree
New York University,Trade Regulation, LL.M.
University of Paris X-Nanterre, French and Anglo-American Business Law, Master’s degrees

Lawyer Rankings

Turkey > IT and telecoms

Paksoy‘s broad offering in the telecoms and IT fields covers compliance and regulatory advice, assistance with data protection and emerging technology issues, and more general transactional and corporate support for clients operating or investing in these industries. Stéphanie Beghe Sönmez, who is experienced in advising on both the IT and IP aspects of transactions, co-leads the practice with fintech expert Sera Somay. Elvan Aziz is another key contact for commercial and labour law matters in these sectors.

Turkey > Commercial, corporate and M&A

Paksoy houses a solid and ‘very well respected’ six-partner M&A practice, which is regularly involved in major transactions and garners praise for its ‘ability to work across borders easily’. The team, which handles deals focused on foreign investment in Turkish targets, as well as acting on the domestic side of global transactions, is jointly headed by transactional specialist Elvan Aziz; Togan Turan, who also heads the antitrust and competition practice; and IP and technology expert Stéphanie Beghe Sonmez. Additional expertise is provided by Nazlı Bezirci, who was promoted to partner in 2021.