Céline Greenberg was born and raised in Paris. She studied law in a bilingual programme at Nanterre University, covering both French and Anglo-American legal traditions, before completing an LL.M. in International Law at the University of Bristol.
She also attended a summer semester at NYU, where she explored anthropology and foreign policy decision-making — an experience that broadened her understanding of the human and political dynamics that often underlie legal disputes.
Céline began her career in 2006 at international law firms in Paris, followed by seven years at a Magic Circle firm. She then spent eight years working with Pierre Mayer, a highly regarded international arbitrator, which gave her valuable exposure to the work of arbitral tribunals.
In 2024, she launched the arbitration practice of a Paris-based independent full-service firm. The practice was quickly recognised as a "Firm to Watch" by legal directories.
Since 2025, Céline has practised independently as an arbitrator.
She acts in proceedings governed by a variety of institutional and ad hoc rules, applying a broad range of substantive laws.
Céline Greenberg brings a clear, structured approach to complex disputes. With a background as both counsel and arbitrator, she combines procedural rigour with a practical understanding of the needs of parties and of other stakeholders (co-arbitrator, presiding arbitrator, institution...).
She is known for her ability to navigate dense records and multifaceted arguments without losing sight of the core issues.
Her decisions are focused on resolving the dispute — not showcasing the arbitrator.
Céline is attentive to party equality, due process, and procedural efficiency. She is collaborative by nature, yet decisive when necessary.
Her experience spans a range of sectors and legal systems, and she is comfortable working in both civil and common law settings.
She speaks French and English fluently and reads Spanish.
Representative experience as presiding arbitrator
Acting as presiding arbitrator in Finland Arbitration Institute arbitral proceedings between a Finnish party and a Korean party. Finnish applicable law. Finnish seat. English language.
Representative experience as co-arbitrator
Acting as arbitrator appointed by the Swiss Arbitration Center in a dispute between off-shore companies and a Ukrainian party. Swiss applicable law. Swiss seat. English language.
Representative experience as sole arbitrator
Acting as sole arbitrator in an ICC arbitration between a Turkish manufacturer and a Chinese buyer in a dispute concerning the sale of machinery. CISG applicable. English language. Paris seat.