This website uses cookies
This website uses cookies necessary for its proper functioning. We respect your privacy and do not collect your data for visit statistics.
Accept Deny all

At Pavleas Avocats, we are team players!  

We have a team-oriented approach where we seek to optimize our expertise for the needs of our clients. We offer to integrate our clients’ workflow into our structure to optimize resources and timely responsiveness. We serve as partners in achieving our clients’ goals and ultimately provide them with an in-house lawyer feel.

Our recipe for success

Constantin Pavleas


Constantin Pavleas is the managing partner of Pavleas Avocats, an IT/IP boutique law firm, which he founded more than 20 years ago, with offices in Paris and Athens. He has specialized expertise in IP strategy, complex intellectual property and technology transactions, and data privacy matters. In addition to advising clients in these areas, he also acts as IP counsel in international merger and acquisition transactions.

Prior to that, Constantin Pavleas gained extensive international experience in prestigious law firms (Skadden) and as in-house counsel in new technology companies (Mergers & Acquisitions manager for the Asia-Pacific region with Gemalto, and Legal Director for South Europe at Sybase). He is fluent and works daily in three languages.

Driven by the transmission of knowledge, he is an educator and is the director of the Digital Law and Intellectual Property Law major of the HEAD (Ecole des Hautes Etudes Appliquées du Droit) Master program. He teaches a specialized course on data protection and case-based IP negotiation workshops in M&A transactions. As an engaged citizen, he contributes to the public debate by sharing his expertise. He is the author of numerous articles on legal issues on advances and challenges related to technology and data privacy. Notably, he is a regular guest on radio and TV.

Constantin Pavleas holds an LL.B of English and French law from King’s College London and a law degree from the University of Paris 1 – Pantheon Sorbonne. He is qualified as avocat at the Paris Bar and admitted to practice law in France.

Calliope Makedon Sudborough


Calliope Makedon Sudborough is an American attorney of counsel to Pavleas Avocats, bringing over 10 years of experience in international commercial dispute resolution as former Deputy Manager of the International Centre for ADR for the International Chamber of Commerce (ICC) in Paris, France. 

Calliope is also the Academic Director of the Double Degree program “International Business & Law” at IÉSEG School of Management in Paris, France, where she teaches courses on business negotiation, contract law and international public law. Before joining Pavleas Avocats, Calliope received her doctorate in law from the Université Paris II Panthéon-Assas. She also holds a juris doctor (JD) from Suffolk University Law School in Boston, Massachusetts and was admitted as an attorney at the Bar of New York in 2008. 

Calliope is a trained commercial mediator (certification from the Pepperdine University Straus Institute for Dispute Resolution) and former Co-Chair of the International Mediation Committee of the American Bar Association. As an advocate for efficient and cost-effective commercial dispute resolution, Calliope founded and designed the Annual ICC International Mediation Conference in 2010, providing a global forum for international companies to discuss dispute management strategies that promote better business, and encouraging the legal profession to adapt to a more problem-solving approach over litigation.

George Papadopoulos


George Papadopoulos is a senior associate with Pavleas Avocats which he joined in July 2018. He brings more than 15 years of professional experience as a transactional lawyer and a litigator. He advises clients on privacy and data protection law and commercial law. Before joining Pavleas Avocats, George has served as a legal advisor at the Ministry of Education, the Ministry of Administrative Reform and E-Government and at the Athens Bar. In parallel, he has taught at the University of Piraeus and drives an IT litigation course at HEAD (Ecole des Hautes Etudes Appliquées du Droit).

George has written and published numerous articles, papers and expert notes on a variety of legal issues including on open data and artificial intelligence. He is a regular speaker at legal and entrepreneurship conferences, and has given interviews for the TV and radio. He has received the “Award of Excellence” from the University of Athens, and the scholarships from the Cambridge European Trust, the Lilian Voudouris Foundation and the State Scholarship Foundation. He is a senior member of Wolfson.

Georges Papadopoulos hold a Bachelor’s and Master’s degree in law from the University of Athens and Master’s degree in Commercial law from the university of Cambridge. He has also successfully completed DPO training. He is a Supreme Court advocate and was admitted to the Athens Bar in 2006.

Aretina Paschaloudi


Aretina Paschaloudi is a junior associate at Pavleas Avocats. She specializes in information technology and intellectual property law. Aretina assists in the drafting and negotiation of commercial contracts.

Prior to joining the firm in August 2019, Aretina had trained as an in-house lawyer for six months in the digital legal department of Amazon EU, based in Luxembourg. Her areas included product consulting for Alexa and Amazon devices, as well as risk analysis and mitigation for existing products from acquired companies. She has also advised Amazon EMEA on a range of issues relating to intellectual property, artificial intelligence law and the protection of personal data.

Aretina completed internships at the Institute of Competition Law as an associate editor and in the Economic and Commercial Affairs Department of the Greek Embassy in France, to promote Greek exports to the French market. She completed an eighteen-month internship as a trainee lawyer for the Athens Bar, specializing in civil litigation, competition law, real estate law and commercial law. She works daily in English, French and Greek, and has an intermediate level in German.

Aretina holds a law degree and a master's degree (M2) in international and European economic law from the Sorbonne Paris Nord University. She also holds a post-graduate diploma from the University Panthéon-Assas in competition law. She has been admitted to the Athens Bar since 2019.

Firmly anchored fundamentals of our team  


We actively participate in sharing our vision through media outlets, articles for expert and lay audiences, and teaching the next generation of lawyers. We are committed to comprehensively thinking about how the law could adapt to continuously evolving digital applications and technology. 


In our IT/Privacy practice, we aim excellence. Legal experts in our field, we understand our clients’ businesses and the markets where they operate.


Committed and with our ears close to the ground, we actively monitor all changes in regulations affecting data and technology. This allows us to always be proactive, anticipating the needs of our clients.


We enthusiastically participate in our client’s business strategy and operations. We engage in their environment, understanding their needs, activities, industries and competitors.   


With our clients and among our team, we value long-term human relations, based on mutual respect, responsiveness and commitment.


We believe in independent thinking, boldness and inventiveness to produce innovative and fruitful solutions to our client’s legal and commercial goals.  


We endeavor to positively influence our clients and our environment, and make a contribution to the debate about how to articulate thrust for innovation and protection of individual freedoms.


We are dedicated to getting the deals done. Attentive and available, we are committed to our clients and there for them on a daily basis and at crunch times.  

Pragmatic approach

Fundamentally independent, we look for solutions to address our clients’ strategic challenges.

We favor proximity with our clients to better understand their issues and challenges, alert on potential risks and advise on solutions.

Pro-bono work

We devote time each year to conduct a pro bono activity.

We associate ourselves with charitable and non-profit organizations that share our values and vision of the world.