Intellectual Property Law, Legal Issues of the Information Society (Domain Names, Electronic Signature, ISPs etc), National & International e-commerce Law, On-line Financial Services and e-banking Law, Telecoms Law, Electronic Mass-Media Law, Consumer Protection Law and Law of General Terms & Conditions, Personal Data Protection and Human Rights, Alternative Dispute Resolution-Mediation, Corporate Governance, Sponsoring, Applied Ethics (Business Ethics-Corporate Social Responsibility, Bioethics-Genethics).



2 Coumbari Street, Athens 106 74 , Greece

Telephone numbers:
+30 210 3625757, +30 210 3626624
+30 210 3612389, +30 210 3622724

Telefax numbers:
+30 210 3626742, +30 210 3605873





On the occasion of the 95th anniversary of Dr. P. D. Theodorides - Dr. H. G. Papaconstantinou Law Office,

Dr. Helen Papaconstantinou,

Head of the Office since 1986 and Founder of the company Dr. Helen Papaconstantinou, John Filias & Associates, is pleased to announce that, with effect from the 1st of October 2015, the two practices merged into one legal entity, the Law Firm


Dr. Helen G. Papaconstantinou and Partners


Though we will now operate as one entity, you will still rely on the same personal working relationships you have held in the past, since all lawyers, paralegals, other employees and technical counselors have joined the new Firm. The new Firm’s premises and all contact details will also remain the same.

Indeed, the new entity will continue on the basis of the same values, ethics and philosophy which led the two practices to accomplish excellent results in the IP sector, in their 20-year history of working together, establishing a reputation for excellence by providing sophisticated legal and business solutions in the IP sector.

The managing partner of the new Firm will be Dr. Helen G. Papaconstantinou and the other four partners will be: Eva Yazitzoglou, Miranta Theodoridou, Maria Athanassiadou and Fotini Kardiopoulis.

This move, adjusting the practice to the modern standards of the legal profession, aims at increasing the depth and breadth of services to our international superb client base and to fully secure the needs of our clients with portfolios of various IP rights.

We are committed to continue working hard to deliver high quality tailored expert services in the IP sector and look forward to exploring opportunities to provide you with additional value in new areas.

You will hear much more about our new Law Firm in the very near future, especially in connection to logistics, but we wanted to communicate this information to you from the outset of this new endeavor.

Should you have any questions, please do not hesitate to contact me or any of our partners.


Dr. Helen G. Papaconstantinou




Our Firm is the largest and one of the oldest Intellectual Property Professional Law Services Offices in Greece.      


The actual Law Firm was initially founded in 1920 and has more recently expanded to two separate branches in order to better serve its clients. Both of these branches have been the absolute leaders in their respective markets in Greece. For more information on the Firm's history and present standing, please refer to the relevant section of our site (About the Firm).      


The firm has recently expanded its services to include all aspects of Intellectual Property Law and related consulting.      



According to the worldwide annual survey conducted by the "MANAGING INTELLECTUAL PROPERTY MAGAZINE” (MIP), our Firm has been voted, for the 12th consecutive year, as a Top Greek Law Firm in its field "Tier no.1”, in some fields exclusively so. (MIP Handbook online rankings for Greece). As per the ACQ Country Awards 2009 of the ACQ (Acquisition & Finance) Magazine, our Firm has been listed as the Intellectual Property Law Firm of the Year for Greece (page 39). Our Firm is a Winner of the Corporate INTL Legal Awards for 2009 and 2010. LEGAL 500 also place our Firm at the top of their recommended IP Law Firms in Greece. PLC Which Lawyer rate our Firm as a Leading Firm in its field in Greece. Furthermore, our Firm has been the first Greek Firm to receive ISO 9001/2008 Certification in the IP Law Field.