Maria Kostytska

Lead Counsel, Winston & Strawn

Maria acts as lead counsel in investor-state and commercial arbitration and litigation across a variety of industrial sectors, including oil and gas, renewable energy, utilities, infrastructure, banking, aviation and manufacturing. She also serves as arbitrator.

Maria Kostytska is an international arbitrator and litigator who is multi-lingual in English, French, Spanish, Russian, and Ukrainian, and is admitted to the bars of Washington DC, New York and Paris. She serves as arbitrator and acts as lead counsel representing clients in investor-state and commercial arbitrations under the ICSID, UNCITRAL, ICC, LCIA, and other rules. Her arbitration and litigation experience spans over a variety of industrial sectors, including oil and gas, renewable energy, utilities, infrastructure, banking, aviation and manufacturing, and construction. 

Maria is a Court Member of the ICC International Court of Arbitration in Paris. She also serves on the Council of the Georgian International Arbitration Centre (GIAC) in Tbilisi.

Having been appointed as an arbitrator by the ICC and LCIA, Maria has also been listed as a recommended arbitrator by the International Commercial Arbitration Court of the Ukrainian Chamber of Commerce and Industry (ICAC or MKAC).

Maria is a lecturer at the Versailles University, Masters in Arbitration and International Commerce (MACI), where she lectures on investment arbitration.

Prior to joining Winston, Maria has worked and undergone training at the U.S. Court of Federal Claims (Washington), World Bank's Legal Department (Washington), ABA/CEELI (Washington), UNECE and UNEP (Geneva), and the European Parliament (Brussels).