Meet the team

Dispute Resolution

Laszczuk & Partners

Warsaw, Poland
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Organigram

Team Services

Nearly 40 years of experience in helping multinational clients to resolve their disputes 

Łaszczuk & Partners’ dispute resolution practice is one of the leading in Poland in the field of both litigation and commercial arbitration, which year by year is acknowledged in international and Polish rankings of law firms. The firm’s expertise is developed in particular in the field of infrastructure and construction, M&A, real estate, commercial contracts, investment projects, IP disputes and investment treaty arbitration. The firm advises Polish and international clients in multi-million complex disputes and also in high-profile post-arbitration proceedings.

Our team assists clients in managing and resolving all kinds of commercial disputes.

  • construction and infrastructure disputes
  • M&A disputes
  • employment disputes
  • IP disputes
  • insurance disputes
  • business, financial and white-collar crime, including frauds and cybersecurity issues
  • aviation law, including airline liability for delayed or recalled flights

We are a long-standing trusted partner for key players in the market in cross-border litigation, international arbitration and investigations.

  • We advise in proceedings concerning commercial, civil, administrative, and tax matters. Corporations trust us to advise them through threats, crises and disputes of the highest strategic importance across many sectors, including industry, construction, e commerce, real estate, food, telecommunications and aviation. In a number of disputes concerning contracts for specific work, we have advised both principals and contractors.
  • In relation to regulatory enforcement and investigation work, we handle the full range of white-collar, financial crime and securities related enforcement cases.
  • Our expertise shines through in dealing with highly complex disputes. Currently, we are handling over 500 court cases with a total value exceeding PLN 1 billion.

One of the leading arbitration practices in Poland with esteemed arbitration lawyers on board

  • We are one of very few local firms that handle international arbitration cases, serving as counsel and arbitrators.
  • We have counselled in arbitration proceedings held under the Rules of the Court of Arbitration at the Polish Chamber of Commerce, ICC Rules, UNCITRAL Rules, Vienna Rules, SCC Rules, LCIA Rules and others. We have also advised clients in major post-arbitration litigations.
  • We have been advising in multi-million investment treaty arbitrations held against the Polish government concerning investments in Poland.
  • Maciej Łaszczuk and Justyna Szpara are recommended arbitrators in multiple arbitration courts. In 2022/2023 members of our team, as arbitrators, issued 7 arbitration awards is cases of the total worth exceeding EUR 150 million.
  • Maciej and Justyna are active members in international arbitration organisations, including ICC Poland, CIArb, International Council for Commercial Arbitration – ICCA, Austrian Arbitration Association and Swiss Arbitration Association. Maciej Łaszczuk is a Member of the Board of the Polish Arbitration Association. Justyna Szpara is Vice-Chair to the ICC Commission on Arbitration and ADR.
  • We are known for promoting arbitration and other ADRs.

Awards and Recognition

Market Leader 2025 (Poland)

We have once again been recognized by Rzeczpospolita business daily among the most esteemed law firms in Poland in the following categories: Dispute Resolution and Arbitration – MARKET LEADER Criminal Law for Business – RECOMMENDATION

Chambers Europe 2026: Arbitration - band 1, Litigation: Elite - band 3

Łaszczuk & Partners is climbing the 2026 Chambers Europe rankings Recognition as band 1 in Arbitration in this year’s ranking is fantastic news and a genuine point of pride. Overall, we have been recognised in three categories, with five of our lawyers achieving top-tier individual rankings, alongside new entries.

Chambers Global 2026: Arbitration - band 1, Litigation: Elite - band 3

Recognition as Band 1 leaders in Arbitration in the Chambers Global 2026 ranking marks a great start to the ranking season. Our firm has been ranked: Arbitration – Band 1 Litigation: Elite – Band 3 Individual distinctions: Arbitrators – Maciej Łaszczuk – Senior Statespeople – a title awarded to the most experienced and highly regarded lawyers on the market” – Justyna Szpara – Band 1 Arbitration – Justyna Szpara – Band 1 – Jan Ciaptacz – Associates to Watch (a well-deserved debut in the ranking) Litigation: Elite – Justyna Szpara – Band 3

Lexology Index: Arbitration 2025 (Justyna Szpara)

Justyna Szpara has been featured in the Lexology Index: Arbitration (formerly Who’s Who Legal), highlighting her outstanding achievements and expertise in the international arbitration arena. Congratulations to Justyna for this well-deserved recognition! The full report is now live on Lexology.