Department profile
Ioannis Vassardanis & Partners

Dispute Resolution

Europe Guide 2026 : Greece


Ioannis Vassardanis & Partners

Rankings

About

Provided by Ioannis Vassardanis & Partners

The firm is widely acknowledged for its long-standing experience and in-depth expertise both in commercial and investment arbitration, as well as litigation and ADR. 

The firm’s specialist practice group handles a vast range of international and domestic arbitration matters (ICC, LCIA, SCC). The firm has handled numerous institutional and ad-hoc cases in various jurisdictions (Greek, French, Swiss, German, English, Swiss and Swedish).

The firm has a solid track-record in arbitration related proceedings before Greek and other foreign domestic courts, working closely with international law firms, including annulment and enforcement proceedings, and conservatory measures.

The firm has substantial experience in investment arbitration as well, being currently involved as lead counsel in a pending investment arbitration case before ICSID, representing a major construction company. To date, we are the only Greek law firm to act as lead counsel in investment arbitration proceedings. 

The firm’s lawyers have been involved in a variety of litigation cases and multi-jurisdictional disputes, including construction, insurance, white collar crimes, corporate malpractice and corporate securities, litigation arising from accounting irregularities, restructuring and energy-related matters. The firm represents clients before the domestic civil, criminal and administrative courts (in ordinary proceedings, interim measures, proceedings for the recognition and enforcement of foreign judgments).

Chambers Review

Provided by Chambers

Dispute Resolution - Greece

Band 3

Band 3


What the Team is Known For
Ioannis Vassardanis & Partners has standout experience both in investor-state arbitration brought under bilateral investment treaties and in commercial arbitration. The team represents construction companies in disputes with subcontractors or public authorities, as well as other contract-related disputes. It often acts for foreign and domestic clients on the enforcement of judgments in Greek courts. The law firm demonstrates broader civil litigation experience through its handling of disputes in the insurance field.

Strengths

Provided by Chambers

  • The firm offers great expertise in dispute resolution, with experienced partners and a solution-oriented approach.

    Dispute Resolution respondentEurope
  • The team has an extremely helpful and pragmatic approach to claims, being pro-active in exploring commercial resolutions whilst staying mindful and realistic.

    Dispute Resolution respondentEurope
  • The firm has an exceptional understanding of business issues, and is well positioned to support clients in multifaceted disputes which require a combined legal, commercial and practical approach.

    Dispute Resolution respondentEurope
  • The advice provided by Ioannis Vassardanis & Partners is always pragmatic, tailored to the strategic context, and aligned with client objectives.

    Dispute Resolution respondentEurope

Notable Practitioners

Provided by Chambers

  • Band 2Ioannis Vassardanis
    Band 2Ioannis Vassardanis

    Ioannis Vassardanis

    Within the context of his broad arbitration and litigation practice, Ioannis Vassardanis attracts particular attention for his handling of disputes relating to energy and infrastructure projects.
    • Ioannis is highly knowledgeable and consistently impressive.

      Dispute Resolution respondentEurope
  • Band 4Eleni Tsakri
    Band 4Eleni Tsakri

    Eleni Tsakri

    Eleni Tsakri is a well-regarded lawyer who often assists clients with their appeals against public tender awards. She is also active in energy arbitrations.
    • Eleni provides an exceptional level of service, having deep knowledge of her client's businesses.

      Dispute Resolution respondentEurope
    • It is a pleasure to work with such a highly committed lawyer, Eleni is an asset to any client.

      Dispute Resolution respondentEurope
    • Eleni is very capable, has good judgement, commitment and perseverance.

      Dispute Resolution respondentEurope

Ranked Individuals at Ioannis Vassardanis & Partners (2)

Greece

Members

Provided by Ioannis Vassardanis & Partners

Ioannis Vassardanis & Partners has rankings in the following guides

What success is built on

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

Explore thought leadership