Chairman & CEO
Mr. Michael Tsamaz is Chairman & CEO of OTE & COSMOTE. He is Head of COSMOTE since 2007. He joined OTE Group in 2001. Mr. Tsamaz assumed various senior positions in OTE subsidiaries, such as Executive Vice President at OTE International, CEO at OTE Investments and OTE Globe, while monitoring the progress of the major transformation projects of OTE fixed. He also served as a BoD member for a number of OTE and COSMOTE International subsidiaries. Before joining OTE, Mr. Tsamaz had an evolving management career in multinational companies holding senior executive positions in Marketing, Sales and General Management. From 1998 to 2001, he worked in Vodafone Greece as a Commercial Director and later as General Manager of Commercial and Administration Division. From 1991 to 1998, he worked for Philip Morris where he held the positions of Marketing Director for Greece and Israel, Sales Director for Greece and Director of Sales Development for Eastern Europe, responsible for 16 countries (Russian and CIS). Mr. Michael Tsamaz is married with two children and holds a degree in Business Administration from the University of New Brunswick, Canada.
OTE Group Chief Operating Officer
Mr. Zacharias Piperidis is OTE Group Chief Operating Officer since February 2011 and Cosmote Group's Chief Commercial Officer since November 2007. Ηe has extensive experience in telecommunications, a sector he has served for more than 20 years. He has served in executive and managerial commercial and technical posts in fixed and mobile European operators (Vodafone Greece, O2 Germany, ΟΤΕ Investments, Romtelecom Romania, Wind Greece). He holds a BSc in Electrical Engineering from the National Technical University of Athens and an MSc in Communications & Signal Processing from the Imperial College of Science, Technology & Medicine, London. He also holds an MBA from the Heriot-Watt University of Edinburgh Business School.
Legal Counsel OTE Group
OTE Group Legal Counsel - OTE Group Chief Legal & Regulatory Affairs Officer
Ms. Nikolaidi has served COSMOTE since its foundation in 1996 as Legal Counsel – Competition, Legal & Regulatory Affairs General Director. Since January 2011, Ms. Nikolaidi also holds the position of OTE Group Legal Counsel - Executive Director of Legal and Regulatory Affairs of OTE Group, which incorporates the General Directorate of Legal Affairs of OTE and the General Directorate of Regulatory Affairs of OTE, and she also performs the duties of General Director of Legal Affairs of OTE. Before joining COSMOTE, she had served OTE as an expert in telecommunications. Ms. Nikolaidi holds a law degree from the University of Athens, Greece, as well as a Master’s Degree (LL.M.) in International Business Law from the University of London (UCL), UK, where she specialized, among other subjects, in International Finance and International Trade Law.
OTE Group Chief Information Technology Officer
Mr. George Athanasopoulos is Chief Information Officer at OTE Group. Since October 2007, he is also COSMOTE’s Operations & IT Systems General Director. Mr. Athanasopoulos joined the OTE Group in 2002, as OTE Investments Information Management Executive Director, while since September 2006 he held the position of Operational Support Executive Director in OTE Globe. Prior to that Mr. Athanasopoulos worked for Atos Origin as SE Europe Sales Support Regional Manager as well as Vodafone, Greece, as Section Manager for Knowledge Management. Mr. Athanasopoulos holds a B.Sc. in Economics from the University of Athens and a M.Sc. in Computing from Cardiff University, UK. He is married with one child.
OTE Group Chief Human Resources Office
COSMOTE Human Resources General Director since 2008. Since December 2011 she also holds the position of OTE Group Human Resources General Director. Ms Papadopoulou joined COSMOTE in October 2005 as Human Resources Director. Prior to that, she had worked in the Financial Division of SHELL HELLAS S.A and as Human Resources Manager in KRAFT FOODS INTERNATIONAL. For the last 10 years she has been Human Resources Director and member of the Executive Committee of MERCEDES BENZ HELLAS, P.N. GEROLYMATOS and PRAKTIKER HELLAS of the METRO Group.
OTE Group Chief Financial Officer
Mr. Mazarakis has 20 years of professional experience, chiefly in senior management positions. Before joining OTE Group, on July 2012, he was Group Chief Financial Officer (CFO) of the National Bank of Greece, and from 2008 until 2010 he was Group Chief Financial Officer (CFO) and Member of the Group Executive Committee of TITAN Cement Company. From 1999 to 2008 Mr Mazarakis served in various executive positions in Vodafone Group. During the period 1997-1999 he held the position of Finance Director and Member of the BoD at Georgia Pacific-Delica in Greece, while from 1992 until 1997 he worked as Financial Analysis Group Manager at Procter & Gamble, first in Athens and then in Brussels. Mr Mazarakis holds a Bachelor's degree in Business Administration from the University of Piraeus (with distinction) and an MBA from the Ohio State University, The Fischer School of Business.
OTE Group Chief Technology & Operations Officer
Mr. Stefanos Theocharopoulos joined OTE Group in 2002. Ιn April 2013, he assumed the position of OTE Group Chief Technology & Operations Officer. Until then, he was COSMOTE Romania CEO since January 2008 and Romtelecom Chief Executive Officer as of July 2011. He has also held the position of OTEGlobe Business Development Executive Director, OTE Investment Services Executive Technology Director, as well as BoD member in a number of OTE Group companies. He holds a BEng in Electronic Engineer from Sussex University as well as a M.Sc. in Mobile & Satellite Communications from the University of Westminster.
Executive Director Corporate Communications OTE Group
Mrs Tzimea is Head of Corporate Communications at OTE Group since July 2011 and Head of Corporate Communications at OTE S.A. since February 2001. She has been working in Marketing and Corporate Communications in both mobile and fixed line telecommunication providers since 1995. She has thorough knowledge and experience in advertising having worked, among others, at Adel Saatchi & Saatchi. D. Tzimea holds a postgraduate degree in Public Relations and Communications from Stirling University, and is a Political Sciences & Public Law graduate from the University of Athens.