Maria Kostytska is an international arbitrator and litigator who is multi-lingual in English, French, Ukrainian, Russian, and Spanish. She is admitted to the bars of New York, District of Columbia, Paris, England and Wales (barrister). She serves as arbitrator and acts as lead counsel in investor-state and commercial arbitrations under the ICSID, UNCITRAL, ICC, LCIA, SCC and ICAC (MKAC) Rules. Her arbitration and litigation experience spans a variety of industrial sectors, including oil and gas, renewable energy, utilities, infrastructure, banking, aviation and manufacturing.

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

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