LAWYER PROFILE
Themistoklis Giannakopoulos

Themistoklis Giannakopoulos

Europe 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 1 practice area

About

Provided by Andersen Legal, Greece – Pistiolis – Triantafyllos & Associates Law Firm

Practice Areas

Telecommunications, media and technology (TMT)

Antitrust, competition & regulatory

Corporate & commercial

EU law

Career

Themistoklis K. Giannakopoulos heads the TMT practice at Andersen Legal Greece.

A seasoned counsel and business consultant, with extensive international experience in compliance and regulatory affairs, and deep expertise in corporate law.

He brings along proven history of acting as general counsel for major global companies in diverse industries, uniquely efficient in bridging the fine line between the executive’s focus on sales and the board’s focus on risk-mitigation, praised thus for being extremely business-oriented.

His professional career demonstrates remarkably strong ability and proven history in coordinating successfully major projects (incl. mergers and acquisitions, joint ventures, antitrust/e-comms/GDPR and other compliance, public tenders, digital dividend auctions, market liberalizations, etc.). He has also proven multi-jurisdictional experience as Head of Legal and Regulatory in diverse countries and markets, representing clients before national and EU authorities, agencies and courts.

He advises clients in the following indicative sectors: e-communications, gambling, energy, banking, passenger shipping, tobacco, automotive, IT/software, constructions, retail,

He has extensive teaching/training experience, within academic/business environments

Professional Memberships

Athens Bar Association

Publications

Safeguarding Companies Rights in Competition and Anti-dumping/Anti-subsidies Proceedings, 2nd ed., 2011, Kluwer Law International

Chambers Review

Provided by Chambers

Chambers European Guide

TMT - Greece

Band 3
Band 3

Individual Editorial
Themistoklis Giannakopoulos advises a diverse client list including telecoms groups, IT companies and banks on a range of regulatory compliance matters. He is also adept at advising clients on GDPR compliance.

Strengths

Provided by Chambers

  • Themistoklis Giannakopoulos has always been able to help us with our increasingly complex situations.

    TMTChambers European Guide
  • He is very experienced and understands the business very well.

    TMTChambers European Guide

Ranked Individuals at Andersen Legal, Greece – Pistiolis – Triantafyllos & Associates Law Firm (5)

Greece

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership