Michael Tsamaz has been the Chairman and CEO of OTE Group since November 2010. Prioritising customer experience, he led the successful transformation of the OTE Group into a modern technology company. This success, in the midst of the financial crisis, became a case study from Harvard Business School and is taught internationally at top academic institutions. Under his leadership, the OTE Group consistently implements 60% of the sector’s investments, placing the Group as Greece’s largest investor in next-generation networks and technological infrastructure. As a leading digital services provider, the OTE Group contributes decisively to the digital development of the country, society and businesses. For years now, Michael Tsamaz has incorporated the principles of sustainable development into OTE Group’s business strategy and operations, setting as priorities the improvement of its environmental and social footprint, as well as equal access to the digital world for all citizens.

Starting in 2001, Mr. Tsamaz held a number of senior roles at OTE, overseeing the course of the Group’s international subsidiaries and helping to reform the Group’s operations abroad. He has served as member of the Board of Directors of OTE subsidiaries, COSMOTE and Deutsche Telekom. Prior to joining OTE, he held successive C-level positions at multinational companies, in the fields of Marketing, Sales and General Management.

He joined the Board of Directors of the Hellenic Federation of Industries (SEV) in July 2016 and has headed the SEV Digital Economy Committee since November 2016.

In 2023 he received an Honorary Doctorate from the Department of Business Administration of the University of Piraeus.

Mr. Tsamaz holds a degree in Business Administration from the University of New Brunswick in Canada.