Maciej Durbas

Arbitration

Caspian Arbitration Society

Chartered Institute of Arbitrators (CIArb)

Young Austrian Arbitration Practitioners (YAAP)

Young Arbitration Practitioners in Poland (YAPP)

Rising Arbitrators Initiative (RAI)

Arbitration and Meditation Center of Armenia (AMCA)

Permanent Arbitration at the Chamber of Commerce and Industry of Serbia

Young European Federation for Investment Law and Arbitration (EFILA)

Arb | Aut Austrian Arbitration Association

Arbitrator with Kovise Foundation Conflict Resolution International (KFCRI)

Attorney-at-law and Partner at KKG Legal, where he leads the firm’s Arbitration Practice. He is consistently recognized by leading international legal rankings, including Lexology (formerly Who’s Who Legal), Chambers and Partners, Legal 500, and the Rzeczpospolita daily. His individual distinctions in Benchmark Litigation, Lexology, and Chambers and Partners confirm his expertise and proven effectiveness in resolving complex disputes.

His practice focuses on commercial and civil disputes, helping clients minimize risk and achieve favorable outcomes – whether in the courtroom or through negotiation and mediation.

Represents clients in high-value, multi-jurisdictional litigation and arbitration, and also serves as an arbitrator and tribunal secretary. Has experience with nearly all major arbitration rules in Poland, as well as key international rules, including ICC, SCC, FAI, UNCITRAL, and ad hoc arbitration. He is listed as a recommended arbitrator before several arbitral institutions in Poland and abroad.

Maciej advises and represents clients across a broad range of sectors, including mergers and acquisitions, construction, automotive, banking, life sciences, insurance, rail and rolling stock, real estate, retail, and telecommunications.

Beyond dispute resolution, he supports clients in real estate matters, from lease and sale transactions to investment processes and administrative, judicial, and administrative-court proceedings, including reprivatization disputes. He also conducts internal investigations and compliance audits, and advises on asset tracing and asset recovery.

Maciej holds a PhD in Law from Jagiellonian University (2021), where he defended his dissertation, "Deciding on jurisdiction of arbitral tribunals" with distinction. He also earned an LL.M. with honors in international arbitration (University of Vienna / City University of Hong Kong) and completed the ICC Advanced Arbitration Academy for Central and Eastern Europe and the SCC Diploma Course. He is a member of the Chartered Institute of Arbitrators (CIArb) in London. He regularly publishes articles and speaks at industry conferences. Through his active presence on LinkedIn, he promotes best practices in arbitration and dispute resolution, helping advance the legal profession. He co-authored the new arbitration rules of the Lewiatan Arbitration Court, where he serves on the Arbitration Committee.

Maciej lectures on arbitration law and civil procedure, and provides professional training in international arbitration and advocacy. As a coach of the Jagiellonian University team competing in the Willem C. Vis Moot and as a mentor with the Moot Alumni Association and the Institute for Transnational Arbitration, he actively supports the next generation of legal professionals.

Winner of an individual honourable mention for oration

Willem C. Vis International Commercial Arbitration Moot

2009

Distinction in the Rising Stars ranking

Gazeta Prawna

2015

Distinction in the Future Leaders category

Who’s Who Legal Arbitration

2019

Distinction in the Future Leaders category

Who’s Who Legal Arbitration

2020

Distinction in the Commercial Arbitration category

Expert Guides Rising Star

2020

Distinction in the Future Leaders category

Who’s Who Legal Arbitration

2021

Distinction in the Commercial Arbitration category

Expert Guides Rising Stars

2021

Distinction in the Future Leaders category

Who’s Who Legal Arbitration

2022

Distinction in the Commercial Arbitration category

Expert Guides Rising Stars

2022

Distinction in the Future Leaders category

Who’s Who Legal Arbitration

2023

Recommended lawyer in Most Transparent Arbitration Practitioners & Practices category (Third)

Jus Connect

2023

Distinction in the Future Leaders category

Who’s Who Legal Arbitration

2024

Recommended lawyer in Dispute Resolution: Arbitration (Up and Coming)

Chambers Global

2024

Recommended lawyer in Dispute Resolution: Arbitration (Up and Coming)

Chambers Europe

2024

Distinction in the Future Leaders category

Lexology Index: Arbitration

2025

Recommended as Global Elite Thought Leader in the category Client Choice – Arbitration

Lexology Index: Client Choice

2025

Recommended lawyer in Arbitration (Up and Coming) and Arbitrators (Up and Coming)

Chambers Global

2025

Recommended lawyer in Arbitration (Up and Coming) and Arbitrators (Up and Coming)

Chambers Europe

2025

Recommended lawyer in Lawyer of the Year Category

Lexology Index: Litigation & Dispute Resolution Arbitration

2025

Poland Arbitration Lawyer of the Year

Benchmark Litigation

2025

Dispute Resolution Litigation Star

Benchmark Litigation Europe

2025

Distinction on the list Most Highly Regarded

Lexology Index: Arbitration

2026

Recommended lawyer in: Arbitration (Band 3), Arbitrator (Band 4)

Chambers and Partners

2026

Recommended lawyer in: Arbitration (Band 3), Arbitrator (Band 4)

Chambers and Partners Europe

2026