Anton Sigal advances through the rankings this year owing to strong feedback from diverse sources for his disputes practice. Sources are quick to praise his innovative approach to problem-solving, explaining that "he grasps the nature of different issues quickly and finds good solutions." He has standout experience in international arbitration proceedings in the energy sector. He also handles pharmaceutical patent disputes. He joined the team in January 2018 as part of the merger between Primus and Ellex Raidla.