Mr. Kostas Nebis has been the Chief Executive Officer of the company since 2024. Previously, he served as the Chief Executive Officer and President of the Management Board of Hrvatski Telekom from April 2019 until June 2024. Prior to this, he was the Chief Commercial Officer Consumer Segment of the OTE Group and has also served as Marketing Director at COSMOTE. Earlier, he served in numerous managerial positions in Marketing & Sales, in multinational companies from the telecommunication and non-alcoholic drinks sectors.

Mr. Charalampos Mazarakis has been the Chief Executive Officer of Telekom Romania Mobile Communications since May 2023. He also served as the Chief Financial Officer and a Director of the company since 2012. Prior to this, he served as Group Chief Financial Officer of the National Bank of Greece. He served as Group Chief Financial Officer and Member of the Group Executive Committee of TITAN Cement Company from 2008 to 2010. Mr Mazarakis served in various executive positions in Vodafone Group from 1999 to 2008.

Mr. Panayiotis Gabrielides has been OTE Group Chief Marketing Officer Consumer Segment since January 2019. He has more than 20 years of experience in Telecommunications and Marketing. He joined COSMOTE in 2003 and since then has taken various management positions in Consumer Marketing of fixed and mobile products and services. Prior to joining OTE Group, he has worked as a Sales Executive in the Financial Information Systems industry, namely in the multinational companies Reuters and Dow Jones Markets. Mr. Gabrielides holds a degree in Computer Engineering and Informatics from the University of Patras. In addition, he holds a Master of Science (MSc) degree in Data Communications, Networks and Distributed Systems from the University of London (UCL).

Mr. Athanasios Stratos is the Chief Customer Operations Officer of the company. Previously, he served a number of managerial positions in OTE Group in the areas of sales and customer service. Mr. Stratos has extensive experience in commercial, Sales and Service in the telecoms sector and Business Process Outsourcing.

Mr. Ioannis Konstantinidis has been the Chief Strategy, Transformation and Wholesale Officer of the company since 2015. Prior to this, he held various senior managerial positions at OTE Globe. Previously, he served as the Chairman of the Board of Directors of OTE Globe, as well as Chairman of the Board of Directors of OTE Rural North & South.