Arbitration
2 Ranked Lawyers
Firm PROFILE
Queritius
Europe 2026
Rankings
Leading firm in Europe 2026
Ranked Department
Ranked Department
Ranked Individuals
Ranked Individuals
Top figures
17
Lawyers
9
Jurisdictions
6
Partners
Content provided by Queritius
Overview
Provided by Queritius
Founded in 2020, Queritius is a leading dispute resolution firm in the CEE region. Specialising in international arbitration, including commercial and investment treaty disputes, we act as counsel and arbitrators across multiple jurisdictions. Our team combines top-tier law firm experience, academic insight, and business perspective, delivering strategic, cross-border solutions for complex disputes.
Industry sectors (11)
- Construction
- Energy and infrastructure
- Mergers and acquisitions
- Investment protection
- Mining and natural resources
- Real estate
- Manufacturing
- IT and software disputes
- Renewable energy
- Financial services
- Life science
Capabilities (15)
- International Arbitration
- Commercial Disputes
- Investment Treaty Arbitration
- Cross-Border Litigation
- Corporate Disputes
- Construction & Infrastructure Disputes
- Energy & Renewable Projects
- Technology & IT Disputes
- M&A & Shareholder Disputes
- Insolvency & Restructuring
- Public Procurement Disputes
- Intellectual Property Disputes
- Sports & Entertainment Arbitration
- Advisory for Multijurisdictional Disputes
- Arbitrator & Counsel Service
Clients (8)
- PESA
- MOL
- Ministry of Justice Ukraine
- Alior Bank
- UkrArmoTech LLC
- Donbasenergo PJSC
- Newlong Industrial Co., Ltd.
- Optima Wind
Key people
Provided by Queritius
Alicja Zielińska-Eisen
Partner
Wojciech Sadowski
Partner
Dániel Dózsa
Partner
Petra Pataki
Partner
Sergiy Gryshko
Partner
Dalibor Valinčić
Partner
Maria Pachou
Counsel
Dragana Nikolić
Counsel
Joanna Iwanicka
Counsel
Hanna Marunych
Associate
Work & experience
Provided by Queritius
Queritius advises on complex cross-border disputes with a focus on international arbitration. The team acts as counsel and arbitrators in commercial and investment treaty cases, handling high-stakes matters across multiple jurisdictions. Recent work includes multi-million ICC and ICDR arbitrations, infrastructure and energy disputes, and sensitive proceedings involving international businesses and public sector entities.
Notable work
Provided by Queritius
Acting for PAT Donbasenergo
A case brought against Russia for violation of Article 1 of the First Protocol (application No. 6703/23)
Ranked Offices at Queritius
Provided by Queritius
Ranked Departments at Queritius (1)
Ranked Individuals at Queritius (9)
Croatia
Dalibor Valinčić
Dispute Resolution
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Poland
Wojciech Sadowski
Arbitration
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Alicja Zielińska-Eisen
Arbitration
View profile Wojciech Sadowski
Arbitrators
View profile Alicja Zielińska-Eisen
Arbitrators
View profile Wojciech Sadowski
Litigation: Highly Regarded
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Ukraine
Sergiy Gryshko
Dispute Resolution: International
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Unknown
Dragana Nikolić
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Joanna Iwanicka
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Top figures
17
Lawyers
9
Jurisdictions
6
Partners
Content provided by Queritius
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