Piotr Bytnerowicz

Counsel, Warsaw



Piotr Bytnerowicz is a counsel in the White & Case Dispute Resolution and International Arbitration practice, a Fellow of the Chartered Institute of Arbitrators and a member of the Society of Construction Law. He has over 15 years of experience in various commercial disputes before state and arbitration courts (involving, in particular, general commercial, construction, M&A and real estate-related disputes). He also has significant in-house experience as for nearly two years he was seconded to White & Case's client in Western Australia where he managed a team working on a multi-million dollar arbitration. Piotr serves as counsel, arbitrator or mediator in commercial and construction arbitration. He has worked with clients in a wide range of industries including logistics, oil & gas, mining, infrastructure, construction, real estate development, telecommunications, and insurance.

Prior to joining White & Case in 2011, he worked at the litigation and dispute resolution departments of two renowned international law firms, including a "magic circle" law firm.

He is a member of the Working Group for Trainings of the Arbitration Commission of ICC Poland and of the ICC CEE Arbitration Group, and an alumnus of the ICC Advance Arbitration Academy for CEE.

Since 2009 Piotr has served as a judge at Poland round of Willem C. Vis International Commercial Arbitration Moot. He was also involved in establishing the first Polish association of arbitration practitioners under 40 – the Young Arbitration Practitioners in Poland (YAPP) at the "Lewiatan" Court of Arbitration in Warsaw.

Piotr frequently speaks at conferences and seminars relating to construction.

The prestigious international legal rankings, Chambers Global and Chambers Europe, ranked Piotr in their latest editions as one of the best specialists in Dispute Resolution. The Legal 500 ranking recommended him for Dispute Resolution in its 2022 edition. Who's Who Legal listed him in the 2019, 2020 and 2021 Arbitration Future Leaders – Non-partners ranking. Piotr was also honored as one of the "Rising Stars" in one of the editions of the legal professionals' ranking, published by Wolters Kluwer and Dziennik Gazeta Prawna.

Bars and Courts
Poland, Polish Bar Council
Master's Degree
Faculty of Law and Administration at Warsaw University
British Centre for English and European Legal Studies
University of Warsaw
(in cooperation with the University of Cambridge)


Representing an international logistics company in a €35 million dispute with a group of its contractors.

Representing clients in a number of multi-million ICC M&A arbitrations.

Acting as arbitrator in a construction dispute between an investor and a contractor, relating to a prestigious residential development in Warsaw.

Acting as arbitrator in a construction dispute between a designer and an employer, relating to an office building in Warsaw.

Acting as arbitrator in a commercial dispute between a hypermarket chain operator and its supplier.

Representation of a municipal company in ICC arbitration against the general contractor of a transportation investment project.

Representation of a contractor in ICC arbitration valued at €27 million relating to one of the biggest and most complicated multi-purpose investments in Poland.

Representation of a spirits company (the respondent) in an arbitration dispute over the performance of a distribution agreement.

Representation of a client in relation to potential investment arbitration against Poland.

Representation of a real estate investor in connection with an ICC arbitration dispute with a hypermarket chain operator, regarding the performance of a hypermarket chain purchase agreement.


The conclusions from the 2015 International Arbitration Survey, Arbitration Bulletin No. 3-4(22-23)/2015

Admissibility of witness preparation in arbitration proceedings –International and Polish perspectives, Dispute Resolution International Vol 10 No. 1, April 2016

Admissibility of witness preparation in arbitration proceedings, Arbitration Bulletin 22/2015

The Period for Giving Notice of Contractor's Claims Set Out in Sub-Clause 20.1 of the FIDIC Conditions in Light of Polish Law, Arbitration e-Review 1(8)/2012

Conditions for bringing new claims to arbitration under FIDIC contracts, Arbitration e-Review 1/2011

Cut-off Time for Introducing a Counterclaim in Arbitration under the ICC Rules, Arbitration e-Review 2/2010

FIDIC Sub-Clause 20.1, Biuletyn Konsultant 26(9)/2012