Future Leaders

Sebastiano Nessi is a counsel in Schellenberg Wittmer's Geneva office. Trained in both civil and common law, Sebastiano specialises in international arbitration.

Sebastiano's clients and cases have spanned most continents, including Europe, Asia, South America and Africa. He has handled arbitrations under the rules of the CEPANI, DIS, ICC, ICSID, LCIA, UNCITRAL, SCC, SCAI, SIAC and WIPO.

Sebastiano has represented states, state-owned entities and private companies in complex multi-jurisdictional disputes across a wide range of sectors with a particular focus on energy, commodities, pharmaceuticals, joint ventures, aerospace, sports and construction disputes. Sebastiano has also acted as counsel in several investment treaty cases, advised clients on the structuring of their investments, as well as states on the negotiation and drafting of trade and investment treaties. Sebastiano regularly sits as arbitrator.

Sebastiano Nessi has written and spoken widely on arbitration, as well as teaching commercial and investment arbitration at the University of Paris I, Panthéon-Sorbonne and Sciences Po Law School (2013–2017). He is also a visiting lecturer at the Swiss Arbitration Academy and the Ukrainian Arbitration Association's Arbitration School.

Sebastiano Nessi serves as the current Vice-chair of the Chartered Institute of Arbitrators' Young Members Group (CIArb YMG). He was also appointed ICC YAF Representative for Europe and Russia.

Sebastiano Nessi graduated from the University of Geneva in 2004 (summa cum laude) and was admitted to the bar in Switzerland in 2006. In 2009, he earned a Master of Laws (LLM) from Columbia Law School (New York). In 2015, he obtained the CAS in arbitration jointly offered by the Universities of Lucerne and Neuchâtel.