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Our Team

We love to create

Palo has a high performance and enthusiastic team of business analysts, data engineers,software engineers,developers and researchers. Any product or service is only as good as the people behind it. We tackle complex business issues and engineer simplicity. Our team consists of amazing people, working collaboratively to provide a dependable and exemplary service to our customers.

Palo Team

Panayiotis Tsantilas

Founder & CEO

Panayiotis co-founded Palo in 2008. Previously, he had worked for over 25 years in top management positions in various national and international technology/services companies. He holds an MSc. in IT from Glasgow University and a BSc in Physics from the University of Patras. He is passionate about technology and the fields of Big Data and machine learning and has established Palo as the lead innovator in Greece in Content Aggregation, Clustering of news, NER, Sentiment Analysis, as well as Aspect Mining.

Pavlos Polydoras


Pavlos holds an M.Sc. in Information and Data Management from the Department of Informatics and Telecommunications of the University Athens. He has extensive experience in designing and leading the implementation of secure, large-scale, distributed systems in various domains in both public (European institutions, government projects) and private sector (Greek, European and US-based companies and freelancing).

Marina Grapsa

Client Service Director

Marina holds a MSc in Operational Research & Management Science and a BSc in Marketing Management. Marina has worked in the analytics and the market research industry for the last 10 years. For the last 4 years she has been specialised in research methodologies and solutions on Media and Digital Media and on the Social Media Analysis and Insights.

Fotini Spiliopoulou

Snr Media Analyst

Fotini has worked in the social media and web monitoring industry for the last 7 years, using both Greek and international data collection platforms. She has specialized in data analysis and evaluation for extracting actionable insights. She also holds a MSc in Applied Physics and a BSc in Physics from the University of Patras.

Simos Kapsalis

Full Stack Developer

Simos is a Computer, Communications and Networks technician with experience in IT applications programming. He has worked in IT companies as Back-End and Ful-Stack developer, while his areas of interest are expand on Network Safety issues.

Anna Merianou

Client Service Executive

Anna is currently a senior postgraduate student at the Faculty Communication and Media Studies. joined at the program Politics in the era of the Internet, of the National and Kapodistrian University of Athens. She obtained her BA in Sociology at Panteion University of Athens. Her main research interests focus on digital sociology and the ways that social dynamics intersect with the modern digital context. She is interested in exploring how the digital world and the big data reassess the social practices and structures.

George X. Protopapas

Senior Data Analyst

George X. Protopapas is analyst of economic, political, diplomatic and international affairs and also works as a freelance journalist for online media.

Alexandra Zoumpataiou

Media Analyst

Alexandra is a graduate of Metropolitan College, Media Production – Journalism. For the past three years she has been working as a news editor and data analyst. She is particularly interested in cultural and political projects.

Petros Bougas

Data Analyst

Petros holds a BSc in Management Science & Technology from Athens University of Economics & Business. He specializes in Data Analysis and Visualizations using Business Intelligence Tools, while always strives to locate patterns behind data in order to provide useful insights. Petros is an invaluable part of Palo Data Analytics Team since 2019.

Thomas Charisis

Digital Marketing Manager

Thomas is a Dipl. engineer in Electrical & Computer Engineering from the University of Patras, Greece. More than 8 years of international experience in areas of Digital Marketing Technology, Web Project Management, Technical Account Management and Sales Engineering. Fields of interest are data analysis, web innovation and growth hacking.

Nikolaos D.A. Arvanites

Content Director

Nikos is a combating journalist and an acknowledged expert in the field of international relations in the region of Balkans since 1994.

Anna Panayiotidou

Content Supervisor, Turkey

Anna has worked in the media industry for more than 10 years and she has also been a partner of the Athens News Agency in Turkey.

Nicholas Gerolymos

Financial Director

Nicholas is an experienced financial professional. He has worked as financial controller and auditor for companies in different business sectors, for over 20 years. He holds a Master’s degree in International Accounting and Financial Management from the University of Glasgow and a BA in Accounting and Financial Management from the Athens University of Economics and Business.

Marko Bulatovic

Business Development, Serbia

Marko has more than 10 years of experience working in the field of Sales and Business Development for companies in the auto industry, finance, marketing and online media sectors. 

Mihaela Balauru

Mihaela has a long experience in Account and Project management, working with some of the top Media groups and Brands since 2001.

Board of Advisors

Dimitris Vassiliadis

Strategy/Growth Advisor

Dimitris is an executive leader with rich experience in business development, product development, program and open innovation management and strategic planning. He is experienced in leading multi-disciplinary teams within a spectrum of diverse activities (business and product development, innovation management, marketing, program delivery). He has rich experience of the data-value chains across sectors including banking, fin-tech, security, tourism, wellness and healthcare thanks his constant presence in large scale open and grassroots innovation programs all over Europe. He has a solid technology background, a deep understanding of the state-of-the-art and substantial business case development experience for solutions working with Machine Learning, Artificial Intelligence, Blockchain. Using technology to improve people’s lives and proud co-founder of GivingStreets, a non-profit enterprise working to bridge the cashless divide, using blockchain and mainstream tech. He is a father, start-up mentor, entrepreneur, lifelong learner.

Iraklis Varlamis

Technology Mentor

Iraklis is an Assistant Professor in Data Management at the Department of Informatics and Telematics of Harokopio University of Athens. He holds a PhD in Computer Science from Athens University of Economics and Business. His research field of data management and mining is strongly connected to the needs of palo. He provides palo with valuable consultations concerning web document clustering, the use of semantics in web link analysis and web usage mining and personalization. More information can be found at

John Georgoulas

International Business Development

John has more than 12 years of experience in strategic planning, branding, public and government relations in Greece and Cyprus. He holds a BSc in Business Information Systems from UCLAN, a Post Graduate Diploma in Business Administration from Kingston University and a Diploma of Higher Education in Computer Sciences from Portsmouth University.

Vasilis Poulopoulos

Technology Advisor

Vasilis holds a PhD in Science and Computer Technology, an MSc in Computer Science and a Diploma in Computer Engineering & Informatics. He has more than 35 publications in International Journals, Conferences and Encyclopedias and he obtained 2 times the best paper award. He obtained his PhD by creating an innovative platform for multi-lingual worldwide article collection including data mining, data analysis, text extraction, text categorization, text summarization and web personalization in the University of Patras.

Damianos Chatziantoniou

Big Data Analytics Advisor

Damianos is currently an Associate Professor at Athens University of Economics and Business (AUEB) in the Department of Management Science and Technology and Director of AUEB’s Masters program in Business Analytics and Big Data. Besides that, Damianos has been involved in several technology start-up companies including Panakea Software Inc. (founder, 1998), based in New York City, developed and marketed BI technology to make certain analytics (ad-hoc OLAP) and Aster Data Systems, a pioneer in big data.

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