Management Team

George Mathios

CEO and Vice Chairman

George Mathios is the CEO and Vice Chairman of ESA since mid-2019. He has extensive experience in corporate management. He has served as CEO at DIGEA A.E. and member of the Board of Directors of the Hellenic Corporation of Assets and Participations (HCAP). He has held various senior positions in HSBC Bank Plc., Coca-Cola Company, Multichoice Hellas and Procter & Gamble. He is a PhD of the Athens University of Economics and Business and holds an MBA from Manchester Business School. George Mathios holds a MBA from the Manchester Business School. He is also a Mechanical / Engineer and holds an MSc degree from the University of Manchester, and an M.Sc degree in Shipping and Marine Engineering from the University of Newcastle UT.

Nasos Kalamatianos

Chief Financial Officer

Nasos Kalamatianos is the CFO of ESA as of early 2019. Previously, he was Group CFO at Amarla Retail, largest European licensee of Victoria’s Secret and member of Corporate Finance team of Athens International Airport (AIA). Nasos has cooperated on large projects with companies such as McKinsey, Credit Suisse, AT Kearney, Deloitte, PWC and others. He holds a BSc in Financial and Banking Management from University of Piraeus, as well as an MSc Management from Imperial College London

Christos Kontos
Chief Operating Officer
Christos Kontos, an electrical engineer from Athens Technological Institute and MBA from Nottingham Trent University. He joined ESA in 2011 as Sales Manager for Security Solutions and also a member of the Management Team. Since 2016 he holds the position of Security Solutions Manager. He has 20 years of management experience in the fields of automation and security in large multinational organizations (Motorola, Honeywell, Siemens, G4S).
Maria Michaili

Chief People Officer

Maria, is a graduate in Mass Media and Communication from the Athens University and in Public Administration from the National School of PA. She holds a Μsc in Human Resources Management from the Athens University of Economics and a Postgraduate Diploma in Security & Risk Management from the University of Leicester. She is a certified Global Career Development Facilitator & a Master NLP Practitioner. Maria joined ESA in 2013 and became an HR Director and Management Team member in 2015. She has worked as HR executive in public sector and in security companies.


Konstantinos Pazoulis

Chief Commercial Officer

Konstantinos, joined ESA in 2013 and since 2017 is a member of the Management Team as Operations Manager - Manned Security. Konstantinos is a graduate of Greek-British College and studied IT at Patra's Open University. During his professional career, he worked as Sales Manager and Head of Tendering dept. in Greek and Multinational companies. Since 2019 he is the Commercial Director of ESA

Panagiotis Gavathas

Director of Aviation Security Operations

Panagiotis, has 20 years of experience in Homeland Security, Aviation & Ports Infrastructures. He holds a MA in Defense & Security from Montpellier III and Aix-en-Provence Universities, as well as an MBA Executive from Piraeus University. He also holds the Aviation Security Awareness Diploma by IATA and the National Defense Armament Planning by CHEAr-DGA FR. Panagiotis joined ESA in 2017 as Critical Infrastructures & Aviation Operations Director. Prior ESA he was the Commercial Manager of ICTS Greece.

George Papazoglou

Operations Director Commercial Security

George is a retired Special Forces officer and has Business Administration studies. He worked primarily in security, operational planning, intelligence & training and participated in international projects with private and public security agencies.  Since 2019 he holds the position of Operations Director in Commercial Security. Prior ESA George was the Project Manager for Athens US Embassy security contract on behalf of Brinks. He has extensive  experience in planning, organizing and implementing security projects of high magnitude or complexity.

Maria Tsafa

Finance Director

Maria Tsafa has been the Financial Director at ESA since the end of 2019. She holds a degree in Economics from the School of Law, Economics and Political Science of the Aristotle University of Thessaloniki, with a focus on Business Economics. She has served as Accounting and Personnel Manager at Latsis Group companies, while she has worked as an Economist at Deloitte and other private companies.

Andreas Kolouas

Technology Director

Andreas has over 30 years of engineering and management experience in the Digital Technologies, Telco, and Software Development sectors. He has worked for companies like Eleftherotypia, MEGA Channel, Multichoice Hellas (NOVA), FORTHnet, and Intracom as well as for companies outside of Greece. He is also a certified digital forensics investigator of the Athens Court of First Instance. He holds a B.Sc. in Computer Science from the University of Maryland, College Park and an MBA from the Athens University of Economics and Business.

Dimitris Papadatos

Critical Infrastructure Operations Manager

Dimitris Papadatos has many years of experience in the security services industry as a Sales Manager specializing in electronic and physical security. He has studied computer programming. He also has many years of experience managing manned security services in large companies in the sector. He has been part of the ESA workforce since 2022 and holds the position of Operational Director of Critical Infrastructure.

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Επωνυμία : ESA SECURITY SOLUTIONS SA  Νομική μορφή : Ανώνυμη εταιρεία Έδρα :9ο χλμ Εθνικής Οδού Θεσσαλονίκης – Ν. Μουδανιών  Πυλαία Θεσσαλονίκη  Αριθμός ΓΕΜΗ : 058154004000