Mr Asterios Syssilas > A. & K. Metaxopoulos & Partners Law Firm > Athens, Greece > Lawyer Profile

A. & K. Metaxopoulos & Partners Law Firm
115 28 ATHENS

Work Department

Dispute Resolution, White Collar Crime, TMT, Intellectual Property, Advertising Law


Asterios is a Salaried Partner in Α & Κ Metaxopoulos Law Firm (Athens, Greece) since 2009. He has been practicing law since 2000, when he was admitted to the Athens Bar


He specializes in Dispute Resolution, White Collar Crime, Copyright Law, Advertising Law, Telecommunications Media Technology (TMT) Law, Consumer Protection and Data Protection Law, Industrial Property and Unfair Competition Law. Within 5 years in the firm, he got listed in Best Lawyers in the field of Media Law.

– Represented a multinational dairy products company before the Advertising Self-Regulation Council (SEE), in the framework of a dispute regarding an advertising claim of one of the client’s main products;

– He regularly advises major advertisers on advertising clearance issues, having reviewed several commercials (of alcoholic drinks, credit cards, online gambling sites etc) and terms of promotional contests, including chance based promotions;

– He successfully represented a world famous Polish football player in a dispute regarding the latter’s right of publicity;

– Advised a manufacturer of prestigious leather bags and accessories with presence in 45 countries with respect to its compliance with Greek and EU labelling regulations;

– Advised a major Greek company which is the copyright holder of foreign tv series on anti-piracy issues, drafting penal complaints for copyright infringements via the internet;

– Assisted a foreign client (one of the largest tour operators in the world) to comply with its GDPR obligations following a significant cyberattack incident which resulted in the encryption of servers and the exfiltration of numerous files containing personal data of its Greek employees and customers;

– Advised a major foreign Clinical Research Organization which administrates clinical trials in Greece on issues relating to patients’ personal data;

– Along with Kriton Metaxopoulos he overviewed the litigation strategy of a global TV Network in relation to a million euro dispute against one of the largest TV / Radio Channels in Greece.

In view of the participation of the Firm to the Global Advertising Lawyers Alliance (GALA), he is the key contact person with GALA and has participated in many advertising law conferences, in Greece and abroad. He is a frequent author and a regular contributor to the GALA printed and online publications.



Greek, English, French


Athens Bar Association


Asterios is a LL.M Graduate in Civil Law, Faculty of Law, University of Athens.

Lawyer Rankings

Greece > TMT

Demonstrating broad strength across the advertising, media and publishing fields, the A. & K. Metaxopoulos & Partners Law Firm TMT practice is well equipped to handle complex IP and privacy law matters. With an offering covering both litigation and advisory services, the team specialises in dealing with copyright infringement claims, data protection issues and non-disclosure agreements, among other areas. Based out of Athens, Kriton Metaxopoulos and Asterios Syssilas jointly lead the team, bringing vast experience in multinational litigation proceedings and unfair competition law issues to the firm. Irini Daroussou is an anti-piracy and industrial law expert, while Elena Nikolarea focuses on e-commerce and civil law matters.

Greece > White-collar crime

Demonstrating substantial strength in defending companies and top executives in cases linked to corporate frauds, financial crime, and civil law litigation, A. & K. Metaxopoulos & Partners Law Firm has a team of white-collar crime specialists. Operating out of Athens, Kriton Metaxopoulos is a highly experienced practitioner, primarily focusing on litigation and arbitration, Asterios Syssilas specialises in copyright and advertising law, and associate Achilleas Christodoulou is knowledgeable on tax and bankruptcy proceeding.

Greece > Dispute resolution

Characterised by extensive expertise in the fields of IP, TMT, and white-collar crime, A. & K. Metaxopoulos & Partners Law Firm routinely defends international companies and top executives in corporate fraud, financial crime, and civil litigation proceedings. Demonstrating a growing presence in the pharmaceuticals, energy, and travel sectors, Athens-based practice heads Kriton Metaxopoulos and Irini Daroussou bring vast experience in handling multi-jurisdictional cases relating to commercial and industrial law to the group. Asterios Syssilas is an expert in copyright cases, whilst Marilena Nikolaraki focuses on patent and design-related disputes.