Mrs Polyxeni Gkaintatzi > Metaxas & Associates Law Firm > Athens, Greece > Lawyer Profile

Metaxas & Associates Law Firm
11471 ATHENS
Polyxeni  Gkaintatzi photo


Senior Associate


Fields of expertise

Polyxeni is Attorney at Law, member of Athens Bar Association, since 2015. She specializes in European Law, European and International Tax Law, EU Competition and State Aid Law, International Banking Law, Corporate, and in general Commercial and Business, Law as well as Real Estate Law. She has extensive experience in legal counselling and representing clients before courts, mainly in cross-border cases. She is a Freelancer- Lawyer Linguist at the European Court of Justice.


Greek, English, German, French, Spanish, Russian


Athens Bar Association


Training Program in Negotiations (Certificate in Negotiations) – Athens University of Economics and Business, 2022.

Diploma in Tax Law for Lawyers (“Excellent”) – Athens University of Economics and Business, 2021.

LL.M in European Law, University of Athens, Law School, 2014.

LL.B University of Athens, Law School, 2012.

Training Course: Mediation in civil and commercial disputes (JAMS International ADR Center), 2011.

Lawyer Rankings

Greece > Energy

Cementing its place among the top firms in this field through its ‘niche expertise in energy law and regulation’, the Metaxas & Associates Law Firm team advises on the development, construction and project financing of initiatives, and also assists clients in complex litigation proceedings. Providing legal assistance on the acquisition of energy companies, as well as legislative compliance and competition issues, the Athens-based outfit is co-headed by Antonis Metaxas, who has ‘leading academic credentials’ and is an expert in energy-related disputes and regulatory issues, and Efstathios Kakounis, who has in-depth knowledge of European and corporate law matters. Other key practitioners include Vassiliki Koumpli, who handles arbitration, and Polyxeni Gkaintatzi, who focuses on policy and regulation.

Greece > EU and competition

Adopting an ‘effective and exceptional’ approach, Metaxas & Associates Law Firm has extensive expertise in matters pertaining to abuse of market dominance and related restrictive practices. The team demonstrates significant strength in acting on behalf of clients before the European Commission, as well as assisting them in general compliance with antitrust and competition requirements. In Athens, Antonios Metaxas leverages his ‘professional expertise’ when focusing on state aid law issues and intricate EU legal affairs; Efstathios Kakounis is frequently involved in high-profile competition law disputes and handles due diligence reviews; and the ’exceptional’ Polyxeni Gkaintatzi is knowledgeable in litigation.