Speakers
Marios Bouloukos, counsel, Thesis Law Firm (Athens, Greece)
Marios Bouloukos, Dr. iur., is a lawyer admitted to practice before the Greek Supreme Court, with over 20 years of experience in corporate and commercial law. He serves as Counsel at Thesis Law Firm, where he has developed a broad practice advising on business, corporate and commercial matters, supporting both domestic and cross-border transactions across a wide range of industries. He has been actively involved in high-profile acquisitions, corporate restructurings, and complex commercial and real estate transactions, and has significant experience advising on public tenders and public procurement.
He holds a Doctorate in Law (Dr. iur.) from the Law School of the National and Kapodistrian University of Athens. He obtained his LL.B. from the same institution and subsequently earned a postgraduate degree (DEA) in Business Law (Droit des affaires) from the University of Strasbourg.
He is fluent in Greek, English, and French.
Kloy Tsiaga, founding & managing partner, Thesis Law Firm (Athens, Greece)
Kloy Tsiaga is the Founding and Managing Partner of Thesis Law Firm, an independent Athens-based firm with a strong track record in cross-border corporate and M&A deals, real estate transactions, complex NPL work, compliance and taxation. Kloy Tsiaga has extensive experience advising international investors entering the Greek market, as well as Greek clients pursuing cross-border expansion.
Ms. Tsiaga has advised on numerous high-value M&A and real estate projects in Greece and abroad and also serves on the Board of Directors of a publicly listed company in India.
Her practice also encompasses public works, procurement law, and infrastructure projects, where she has advised global engineering and construction firms on complex developments in sectors such as transportation, water, and residential and commercial property development.
Earlier in her career, she served as a special advisor to Greek ministries and public entities and co-authored the compilation of Greek legislation on public works in English.
She is fluent in Greek, English, and French, and also speaks German, Russian, and Spanish.
Chara Grigoriadou, associate, ALG Manousakis Law Firm
Chara Grigoriadou is a Greek qualified lawyer and a member of Thessaloniki’s Bar Association with a diverse legal background and a specialization on Civil, Commercial, Corporate, Privacy and Intellectual Property Law.
Chara embarked on her legal career as a Trainee Lawyer at the State Legal Council (NSK), and later as a Lawyer at Law Firms in Thessaloniki and Athens where she specialized in Civil, Commercial and Immigration Law.
Before joining ALG, Chara contributed her expertise in the field of Renewable Energy Industry as an In-House Lawyer and Legal Counsel in relative multinational companies where she acquired valuable experience in contracts and negotiations.
Chara’s educational background includes a Master’ s degree in European, International and Private International Legal Studies and International Transactions from Aristotle University of Thessaloniki and a Bachelor’s degree in Law from Aristotle University of Thessaloniki, along with her accomplishing her Master in Bioethics. Her achievements in legal competitions and her solid academic background further demonstrate her dedication to excellence in the legal sector.
In ALG, Chara provides legal support to multinational pharmaceutical companies with a specialization in drafting, reviewing, and negotiating several types of contracts.
Panagiotis Polychronopoulos, senior associate, ALG Manousakis Law Firm
Panagiotis is an experienced Supreme Court Lawyer with over 14 years of expertise in providing comprehensive legal counsel to organizations, companies and individual investors. He has a strong track record in managing a wide spectrum of litigation alongside proficiency in diverse corporate matters and commercial contracts, financing agreements, real estate, intellectual property and labor law.
Leveraging his skills in strategic legal counsel, negotiation, and collaboration, Panagiotis has held significant leadership roles. As Chief Legal Officer for a group of energy companies, he developed corporate legal strategy and oversaw internal audits. Previously, he specialized in contract and arbitration law, leading a litigation team that managed complex, high-value domestic and cross-border disputes before international tribunals.
His background demonstrates a robust capability in navigating demanding legal challenges and delivering results. He holds an LL.B. from Democritus University of Thrace and MSc in Shipping Management from ALBA Graduate Business School.
At ALG, he is a Senior Associate and he leads the litigation efforts for the Athens department, with a primary focus on resolving commercial and corporate disputes. In this role, he provides strategic guidance on dispute resolution and risk mitigation, ensuring Senior Associate clients’ interests are protected through both judicial and extrajudicial proceedings. His role involves high-level advisory on dispute resolution, risk mitigation, and the navigation of intricate corporate conflicts. Additionally, he has been heavily involved in major corporate transactions, including high-value Sales & Purchases (S/Ps), company spin-offs, and “mega-deals,” where he is responsible for reviewing the entire process and negotiating the terms of high-value contracts.
His practice also encompasses the pharmaceutical sector and international contracting, where he drafts and negotiates complex commercial agreements in English for global clients. He possesses extensive experience in reviewing and negotiating Clinical Trial Agreements (CTAs), Investigator Initiated Research (IIR) agreements, and various ancillary contracts within the clinical trial framework, providing strategic legal support to ensure compliance with diverse international regulatory requirements.
He advises on pharmaceutical compliance from a legal and regulatory perspective, with regards to the interpretation and application of EU and national legislation governing medicinal products and medical devices, including advertising, interactions with healthcare professionals and transparency obligations, while supporting the management of compliance risk.
Evi Mathiou, legal, compliance & quality associate director, Novo Nordisk
Evi Mathiou is an Attorney-at-Law, registered with the Athens Bar Association and licensed to litigate before the Supreme Court. She currently serves as Legal, Compliance and Quality Associate Director at Novo Nordisk for Greece and Cyprus, where she acts as functional country head and is a member of the leadership team. She also serves as an Adjunct Lecturer in Pharmaceutical Law at the Aristotle University of Thessaloniki, School of Law.
In her role, she leads integrated legal and compliance strategies that enable business growth while ensuring regulatory adherence and high-quality standards. She drives strategic initiatives that promote a culture of integrity and support sustainable and ethical business practices across the organization. Evi combines expertise in pharmaceutical law and regulatory compliance with strong strategic capabilities, effectively engaging stakeholders and driving cross-functional collaboration. She is recognised for her structured thinking, hands-on leadership style and ability to translate complex regulatory requirements into practical, business-enabling solutions while upholding the highest ethical standards.
Evi holds a law degree from the University of Athens, including a Master’s in Private Law, as well as a Master’s in International and European Studies from Panteion University.
Eleana Nikolopoulou, director, legal and compliance, Lavipharm
Eleana Nikolopoulou is a lawyer and Head of Legal and Compliance with a fresh legal and business perspective, passionate about redefining the traditional role of legal counsel into that of a strategic business partner within the corporate environment, and setting up effective and customer centric legal functions, while establishing a compliance culture across the organisation.
Her top skills include corporate governance expertise and risk management, ensuring compliance with applicable legislation and Hellenic Capital Market Commission Guidelines. She has extensive experience drafting and negotiating a wide range of contracts, including manufacture, distribution, license in and out, supply, service, agency, confidentiality, promotion, non compete, and marketing agreements with both Greek and international contractors.
Eleana has led corporate group restructuring projects, drafted and negotiated shareholders’ agreements, and advised both Greek and international parties. She has also served as Corporate Secretary to the Board of Directors, drafting Board of Directors and General Assembly meeting documentation, reviewing and supporting corporate announcements, and monitoring share capital increases implemented both via ASE and private placements.
Her experience further includes drafting contracts and applications for authorisation relating to real estate transactions, including leasing, sale and lease back, purchase, and sale arrangements. She has provided consultation to top management in relation to financing and loan restructuring, while also ensuring GDPR compliance as a certified DPO.
In the intellectual property sphere, she monitors maintenance, applications, and renewals of trademarks through the review of Greek, European, and international registries in cooperation with external legal associates, while also drafting coexistence agreements and trademark oppositions in Greece and abroad.
In addition, Eleana coordinates and supervises litigation matters in cooperation with external legal associates and has extensive experience establishing and leading multi member legal departments.
Polyxeni Kyriopoulou, head of legal, Elpen Pharmaceutical Co.
Xenia Kyriopoulou is a dual-qualified lawyer, admitted to the Athens and Berlin Bar Associations, currently serving as Head of Legal at ELPEN Pharmaceutical Co. Inc., one of the largest pharmaceutical companies in Greece, with a diverse product portfolio and a strong export presence across major European and international markets.
With over a decade of in-house legal expertise spanning both Greece and Germany, in her current role, Xenia leads a business-oriented legal team at ELPEN that is closely aligned with the company’s strategic objectives.
She holds two master’s degrees from Freie Universität Berlin and the International University of Dresden. Her areas of expertise include complex contract negotiations, export activities, market access initiatives for the Greek market, intellectual property, regulatory compliance, and corporate governance.
Mrs. Sophia Michelaki, lawyer, is the Chief Legal & Governance Officer of DESFA, as of DESFA’s establishment in 2007 and before that she served as Deputy head of DEPA’s department (as of 2005). She graduated from the National and Kapodistrian University of Athens (Department of Law) and holds a post graduate degree from ULB, (License Special European Law). Mrs. Michelaki is a member of the Athens Bar Association. Her native language is Greek and has a full professional competence in English and French. She also has a limited professional competence in German and Italian.
Katerina Mangana, legal affairs director, ION
Katerina Mangana is a Supreme Court lawyer and a member of the Athens Bar Association. She holds an LLB and an LLM in International and Maritime Law. She currently serves as General Counsel at ION, a leading cocoa and chocolate manufacturing and trading company, where she is also Secretary to the Board of Directors.
She is also a Member of the Board of Directors at Bespoke SGA Holdings. In recognition of her leadership and contributions to the in-house legal field, Katerina was named to the General Counsel Powerlist: Greece and Cyprus 2024 and 2025 by Legal 500.
Dr. Nancy Verra, chief legal regulatory & compliance officer, OPAP S.A.
Dr. Nancy Verra is the General Counsel, Chief Legal, Regulatory and Compliance Officer of Allwyn Hellas. Nancy boasts more than 25 years professional experience in positions with high legal responsibility in companies listed in ATHEX. She has a demonstrated legal working experience in heavy regulated industry markets, corporate, compliance, litigation and arbitration combined with top executive management skills. She is BoD member in various companies of OPAP SA. She holds an LL.B form the Law School of the National and Kapodistrian University of Athens, an LL.M in International Economic Law from the University of Warwick and a doctorate from the University of London under scholarship. She has been member of the Athens Bar Association since 2000, and is qualified to practice before the Supreme Court and the Council of State. She is also member of the ICC Commission on Arbitration and ADR and she has been recognized as a top Greek legal counsel by the Legal 500 Guide of Chambers and partners.
Evy Kyttari, legal director, Athenian Brewery
Maria Stamatopoulou, general counsel, Siemens AE
Maria Stamatopoulou is an accomplished in-house legal leader with expertise in corporate and commercial law, complex transactions, regulatory compliance, and corporate governance. She serves as a strategic partner to the business, supporting growth and sound decision making. With inhouse experience in a multinational energy company, shaping a pragmatic, business oriented legal approach, Maria combines a strong blend of inhouse leadership and top tier law firm experience, having previously held senior legal roles within Siemens and a leading Greek law firm.
Dionysios Pantazis, general counsel, South East Europe, Huawei Technologies
Dionysios Pantazis currently serves as General Counsel for the South East Europe at Huawei, leading legal affairs across multiple European Jurisdictions. A dual-qualified lawyer in Greece and England & Wales, he brings extensive experience in corporate and commercial law, telecommunications regulation, technology transactions, compliance, and complex cross-border projects.
He has advised on high-value technology and infrastructure initiatives, including large-scale telecommunications network deployments, strategic commercial partnerships, M&A transactions, and multi-jurisdictional regulatory matters. He also has significant experience handling and managing international disputes and contentious matters across multiple jurisdictions, working closely with foreign counsel, business leaders, and government stakeholders. As a seasoned lawyer, he regularly supports executive leadership on legal risk management, business strategy, corporate governance, and crisis management in highly regulated and fast-evolving markets.
Dionysios is a Fellow of the International Bar Association (IBA) and an active participant in the international legal community, with a particular interest in the intersection of law, technology, digital transformation, and business innovation.
Alexios Andriopoulos is a senior legal leader with extensive experience advising high-growth and international businesses across the technology, mobility, media, and digital sectors. Throughout his career, he has built and led legal functions operating at the intersection of law, business strategy, and commercial growth.
He has significant experience across corporate, commercial, regulatory, compliance, and cross-border legal matters, supporting fast-scaling organisations through periods of rapid growth and transformation. His experience also includes advising on M&A transactions, strategic partnerships and complex business initiatives across multiple jurisdictions.
Known for combining strong legal expertise with a pragmatic and business-oriented mindset, Alexios works closely with leadership teams to enable growth, manage risk effectively, and build scalable legal frameworks that support business objectives.
Kostas Argyropoulos, group general counsel, SPACE HELLAS GROUP
Kostas C. Argyropoulos is General Counsel of SPACE HELLAS Group, a leading 40-year digital integrator and value-added services provider. He is included in the GC Powerlist Greece and Cyprus 2025 and has been shortlisted for Legal Manager of the Year 2025 in Greece. He is also part of a team awarded the Silver Award for Best Compliance Team ICT 2025.
He is recognised for his leadership at the intersection of law, technology, cybersecurity, and artificial intelligence. A strong advocate for responsible AI adoption, he has been a pioneer in Agentic AI and in guiding the transformation of legal teams into AI enabled functions with human oversight. He is a frequent speaker at international summits, where he contributes to discussions on the evolving role of in-house lawyers in technology driven environments.
He has played a leading role in establishing the first AI Committee of the Athens Bar Association, following his proposal being approved by the Board, marking a significant milestone in the integration of AI into the legal profession.
He has authored numerous articles on artificial intelligence, cyberspace law, data protection, public procurement, capital markets, compliance, and corporate governance, and is the author of the books Legislation in Telecommunications and Les Autoroutes de la Communication au regard de la Protection des Libertés Publiques.
Christina Koliatsi, group chief legal counsel, Growthfund
Katie Martin, event content & research manager, Legal 500