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George Patsis
CEO, President

George Patsis is the Founder and CEO of Obrela Security Industries.

George Patsis is a highly accomplished expert in information security with a proven track record in developing and implementing large-scale security programs for major Global 500 Corporations. As an Entrepreneur he holds a passion for identifying market opportunities and building brands. He pioneers and leads the design and development of innovative services and products in the area of strategic security intelligence and risk management.

George is also a) a member of the Athens Club, founded in 1875 and established since then as a social and intellectual center of a special brilliance, b) a regular member of the Hellenic Association of Mobile Application Services (HAMAC) and c) an active member of both the University College London (UCL) and Royal Holloway University of London (RHUL) Alumni.

George Patsis has studied Electrical and Electronic Engineering at the University College of London (UCL) and holds a MSc in Information Security Management from the Royal Holloway University of London (RHUL).

In 2013 George was selected as a High-Impact Entrepreneur to join the most exclusive entrepreneur network in the world, the Endeavor Global Network.

George Daglas
COO, Vice President

George Daglas is a co-founder and COO of Obrela Security Industries.

He has over 15 years of professional experience in the domains of Security Operations Management and Security Governance and has been leading a multitude of large scale multidisciplinary Information Security projects in Europe, the Balkans and the Middle East, working with Multinational and Domestic organizations in the Banking, Telecommunications, Insurance, Consumer sectors.

His professional experience includes serving as Special Projects Advisor, Sales Manager and Principle Secure Telecommunications Engineer for Military and Commercial Organizations, as well as Principal Advisor in the public and private sector.

George, having a strong experience in marketing, business development and information technology as well as solid knowledge of European and Middle East market, is continuously pursuing new challenges in developing new business models, identifying innovative business products and service offerings.

Academically he holds a BSc in Business Administration and an MBA in IT and Telecommunications Management.

Dimitris Strevinas
Chief Engineer Officer

Dimitris Strevinas has acquired strong experience in the Information Security industry, leading the implementation and operations on large-scale security event management and analytics projects in diverse corporate environments. He has developed strong organizational and client-focused management skills by assembling, staffing and operating Security Intelligence & Operations Centers and coordinating Incident Response teams across multiple client engagements.

Dimitri's expertise extends into strategic R&D management, leading the development of innovative security services, products and integrations by identifying new technical and business challenges and designing effective and scalable solutions.

Dimitris has conducted numerous assurance, penetration testing, architecture and source code review engagements building unique skills in the defence, attack and engineering sectors.

Academically he holds a MSc in Electronics and Computer Engineering from the Technical University of Crete. His research interests include SIEM integrations, security intelligence, data analytics and evaluation of latest developments in the security industry.

George Menexis
Chief Commercial Officer

George Menexis has more than 15 years of professional experience in various markets including IT & Telecom and Defense & Security. His experience includes serving as Product Manager, Senior Program Manager, Sales Manager and International Business Development Director in multinational companies in Greece and Europe including the Middle East where he has spent several years located there.

George has strong experience in developing business cases for Build Operate and Transfer (BOT) projects, negotiating BOT proposals and business plans between private and government stakeholders, developing and maintaining key customer commercial relations.

He holds a degree in Electrical and Computer Engineering from the Polytechnic School of Patras (GR) and an Engineering Business Management degree from the University of Warwick (UK).

Olga Chatzikosti
Chief People Officer

Olga Chatzikosti has more than 15 years of professional experience managing all aspects of Human Resources. Olga’s expertise lies in the areas of Talent Management, Organizational Effectiveness and Development, Performance Management, Workforce planning and Post Merger Integrations.

Olga joined Obrela from Korn Ferry Hay Group where she was a Senior Consultant and was involved in several consulting project teams in South East Europe, the Balkans and the Middle East with big and complex organizations across industries/ sectors, having thorough knowledge in Financial Services, Oil & Gas, Media & Telecommunication, FMCG, Utilities, Pharmaceuticals, Manufacturing, Shipping and Non-Profit Organizations.

Academically, she holds an B.A. in Industrial Psychology and M.B.A. in Leadership & International Business from the University of Miami.

AbdulKarim Abughali
VP Sales & Operations, MEA

Karim is an entrepreneur and highly accomplished expert in the IT and IT Security. Karim has more than 20 years of solid experience in managing large scale systems integration companies, Sales and marketing, business development and large scale PMOs setup with track record in the Middle East, Africa and Canada market in senior positions for Multinational Companies and Systems Integrators like Siemens, Juniper Networks, MIS and Splunk.

Karim holds a bachelor’s degree in computer Engineering from the University of Jordan and MBA in the International Business from the American University of London.

George Papamargaritis
MSS Operations Director

Dr George Papamargaritis has twenty years of professional experience in Enterprise Application Development, Technical Consultancy & Delivery of ICT Services, Information Security Management. He has been leading a multitude of projects in UK, Greece, European Union and Middle East for telecommunication, finance, corporate and public sector.

His professional experience includes serving as Senior Researcher (British Telecom), Senior Software Solutions Consultant, Chief Information Officer. George’s expertise extends into IT Solutions Design & Service Delivery, Security Information & Event Management, Research and Development, Presales and bidding processes. Throughout his career path, George has been awarded for his contribution to technology entrepreneurship, and he has contributed to patent inventions, and academic publications.

Academically he holds a PhD in Computation from University of Manchester, an MSc in Human -Computer Interaction from University of London (QMW) and a BSc in Informatics (AUEB). He holds several certifications including ISO/IEC 27001.

Nikolaos Dimitriou
Program Office Director

Dr. Nikolaos Dimitriou holds a BSc in Informatics, a MSc in Information Systems & Technology and a PhD in Organizational & Knowledge Management Strategies for Collaborative Enterprise Networks, carrying significant research experience in the application of systems thinking and cybernetics in the analysis and design of socio-technical interventions in complex enviroments.

Throughout his career path, Dr. Nikolaos Dimitriou has been responsible for the delivery of Technical Consultancy Services & Project Management, mainly in the areas of ICT Strategy and Governance, Strategic & Operational Planning, e-Government, Inter-organizational Collaborations and Business Clusters Building as well as the presales & bidding processes of the Structural Funds/Community Support Framework.

Dimitris Apostolopoulos
Professional Services Director

Dimitris Apostolopoulos holds a Five-year Diploma in Computer & Communication Engineering from University of Thessaly and a MSc in Security of Digital Systems from University of Piraeus carrying significant research experience in digital and mobile forensics.

Dimitris has a professional experience in reviewing and developing complete Information Security Management Systems (Security Requirements Analysis, Information Security Policies, Standards, Procedures, Guidelines, and Data Classification Structures) and conducts Information Security Compliance and Risk Assessments.

Additionally, Dimitris is responsible for conducting Third Party Information Security Assessments on behalf of an International Banking Institute and one of the biggest Communications Service Providers in Greece. He also conducts Information Security Training and Awareness Sessions and has an active role in the development of the SWORDFISH Platform as the master Administrator and UAT specialist.

Nik Levantis
Marketing Director

Nik Levantis has more than 10 years of professional experience both in Greece and abroad. He has developed strategic marketing plans for a variety of companies resulting to strong brand awareness, increase of company value and product favorability among consumers.

Prior to joining Obrela, he had created integrated marketing campaigns for companies in the UK, Greece, Germany and Canada leading to successful product placements and trustworthy relationships between customers and organizations.

Academically, his concentration lies in Applied Research in Communication and Behavioral Change at Johns Hopkins University.

Nik’s unique capabilities in brand strategy, alongside his passionate approach and personal vision have led to a series of awards and distinctions, including Design Week and EBGE.

Antonis Psychas
Swordfish Director

Dr. Antonis Psychas is a senior business and IT consultant, with extensive exposure in successful initiatives and projects, in the areas of business intelligence and analytics, as well as process analysis and improvement, mainly in Retail, Banking and Public Sectors.

Antonis has a strong background on IT, combinatorial optimization and math, with a primary interest in finding consistent ways of incorporating multi-layer business thinking into modern mathematical models and furnishing real value through enhanced visual technologies.

He holds, a PhD in Operations Research from the National Technical University of Athens and a Diploma in Computer and Informatics Engineering from the University of Patras.

Athanasios Nikologiannis
Obrela Labs Director

Athanasios has more than 5 years experience in the field of Information Security working exclusively as a Penetration Tester. His main interest is in Information Security, Research and Exploitation, Red Teaming Engagements, Systems and Network Penetration testing.

His official scientific education is at the Department of Mechanical Engineering at Technical University of Crete. His academic career provided him with a background on Unix and Linux systems, numerical computing and programming. His main focus includes Operating Systems’ Internals, Operating Systems’ Virtualization, Systems Security, Network Security and Open Source Software.

Athanasios Nikologiannis has participated in multiple complex and demanding projects regarding: System and Network penetration testing, Web application penetration testing, Social Engineering, Vulnerability Assessment, Digital forensics, System and Network Security hardening and Vulnerabilities mitigation.