Polina Ostranitsa works in arbitration practice at Advocates Bureau "Dyakin, Gortsunyan & Partners". She represents leading Russian and international companies in arbitration proceedings under the rules of the LCIA, LMAA, SIAC, PCA, and others, with a primary focus on disputes involving energy, shipbuilding contracts, and natural resources. Polina also has experience in litigation before both Russian and foreign courts.
In 2025, Polina received her Master of Laws (LL.M.) degree from the National Research University Higher School of Economics (HSE), specializing in Law of International Trade and Dispute Resolution. During her studies, she actively participated in prestigious international moot court competitions in both private and public international law, including the Philip C. Jessup International Law Moot Court Competition and the Foreign Direct Investment International Arbitration Moot. Polina currently serves as a coach for teams competing in international private law moot court competitions.
Irina Lisinskaya is a junior associate in Grata International's dispute resolution practice. She focuses on cross-border dispute resolution in Russian courts and international commercial arbitration. Irina also has experience in preparing legal reports on Russian law issues for English courts and the Court of the Astana International Financial Centre.
Irina received her Master's degree in International Litigation from the University of Poitiers in 2023. Irina is a participant of the Russian Women in Arbitration Mentoring Programme of 2024.
Stanislava Sosnina is a legal counsel in European energy company.
Stanislava specializes in international commercial and investment arbitration, as well as cross-border disputes in foreign courts.
Stanislava coaches teams in international competitions (VIS, FDI, FIAMC). Under her guidance, the team of Diponegoro University (Indonesia) became the winner and runner-up of the FDI moot court.
Stanislava graduated from the Moscow State University Law School. Stanislava is a regional representative of AIAC APAC VIS pre-moot.
Daria Zavershinskaia is an associate at Monastyrsky, Zyuba, Stepanov & Partners.
Daria represents the Russian Federation in disputes before the International Court of Justice and the Permanent Court of Arbitration, as well as Russian companies in international investment arbitration.
In 2020, Daria received Master's degree in Law of International Trade, Finance and Economic Integration from the National Research University Higher School of Economics and is currently continuing her postgraduate studies. Daria is also a mentee of the Russian Women in Arbitration 2024 Mentoring Programme.
