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Bartlomiej Niewczas

Senior Counsel
Poland

About Me

I am the head of Dispute Resolution team based in Warsaw. I am particularly experienced in complex technical disputes including construction disputes.

I have been advising leading corporate clients from the construction, automotive, energy and beverage & food sectors since 1996. I advise clients on creating dispute resolution strategies and policies, represent them and lead contract negotiations, especially infrastructural and construction contracts.

My dispute resolution experience covers hundreds of cases, in which I have represented clients before the Supreme Court and the common court, before the administrative courts (including the Supreme Administrative Court), arbitration proceedings according to the rules of the ICC, SCC, LCIA, Polish Chamber of Commerce Arbitration Court (KIG), as well as ad hoc arbitration according to equity rules, in international arbitration proceedings according to the rules of UNCITRAL, and cross-border insolvency.

I have repeatedly been a speaker in debates, conferences and panel discussions devoted to the problems of international arbitration of investment and economic development.

Prior to joining Bird & Bird, I was head of a litigation team for a world leader in construction and development.
Experience
  • Representing a leading construction firm in a series of disputes regarding motorway construction contract payments.
  • Representing Poland in investment arbitrations initiated by some investors.
  • Representing a Polish leading petrol manufacturer and distributor in negotiations regarding modernization of petrol processing installation.
  • Representing a National gas pipeline system operator in series of construction disputes.
Education

Studied

  • Maria Skłodowska-Curie University in Lublin, Law
  • Technical University in Radom, BA, Finance (BA)

Admissions

  • Polish Bar Association
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Testimonials

Bartłomiej Niewczas was approachable when I need him on the phone or e-mail - very responsive. I extremely value his opinion and appreciate his way of constructing the legal work documents - diligently written, so well-organised. Great cooperation within his team, I never felt any delays in responses - always providing, keeping high-value advices and communication.

Legal 500 EMEA, 2025

I work with Bartłomiej Niewczas for many years now, still see his engagement with the work on the same high level. He is an amazing lawyer. Incredible legal and business knowledge, experience, cooperation on the specifics of business at a very high level of knowledge of my business. Always high culture in discussions with the other side, no personal remarks, but always focused on the legal and business side of our case.

Legal 500 EMEA, 2025

Bartłomiej Niewczas has unique knowledge and experience in relation to disputes strategy and construction businesses.

Legal 500 EMEA, 2024

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