Vice Chair
Orhun Köstem joined Anadolu Group in 1994, where he held several management roles until 2008. He was appointed as the CFO of Efes Breweries International in 2008. A year later, in 2009, he transitioned to the role of Corporate Finance Coordinator within the Anadolu Group.
From 2010 to 2018, Mr. Köstem furthered his career at Coca-Cola İçecek, serving as the CFO between 2010 and 2016 and then as the Regional Director for the Middle East and Pakistan. He was the CFO of Anadolu Efes between 2019 and 2021.
Mr. Köstem served as the Group CFO of Sabancı Holding from 2021 to May 31, 2026. As of June 2026, he has been serving as an CEO Advisor. He also continues to serve as a board member across various Sabancı Group companies.
He was one of the co-authors of the book "Opening the Window to Capital Markets: From A to Z Initial Public Offerings and Investor Relations.", published in 2009. His expertise has been recognized for many years by various national and international platforms; while listed among "Türkiye’s Most Influential 50 CFOs" by BMI Business School and DataExpert in 2016, 2019, 2020, and 2021, he also received accolades as Türkiye’s Best CFO in Thomson Reuters Extel's Investor Relations Awards in 2011 and 2013, and was named “Best CFO” in the Consumer Sector in Emerging EMEA by Institutional Investor (II) in 2020. He was also distinguished as Best CFO among industrials in the Emerging EMEA region for four consecutive years from 2022 to 2025 by II (renamed as Extel as of 2024). In addition, he was recognized as Best CFO among BIST30 companies by Turkish IR Society (TUYID) in 2022 and 2023.
Mr. Köstem, featured in the C-Suite Series - Fortune 50 CFO 2026 list, is a member of the CFA Society Istanbul and the CFO Network of the World Business Council for Sustainable Development (WBCSD), reflecting his commitment to excellence in finance and sustainable development.
In 1991, Orhun Köstem completed his undergraduate studies in Mechanical Engineering at Middle East Technical University (METU), where he also obtained his MBA. Furthering his education, he acquired a master's degree in Finance and Corporate Law from Bilgi University.
