Since 2016, Markus Sieger is the CEO of Polpharma Group, a large regional pharmaceutical group with market leading positions in the Central and Eastern Europe (CEE) region with market leading positions in several markets there and in Central Asia. In 2018 he joined the Executive Committee of Medicines for Europe, and appointed Vice President of the association in 2022. He has been active in emerging markets and industries for over 30 years. During this time, he has focused on building and developing companies in the pharmaceutical, media, fast-moving consumer goods and real estate industries, by managing complex and strategic transactions in the USA, CEE, CIS and Singapore. He has been a member of supervisory boards of private and public companies and is currently a board member of Rafael Holdings (NYSE:RFL). He is an alumnus of Stanford University Graduate School of Business. In 2025, he was nominated President Ad Interim at Medicines for Europe.