About Me

I am a partner in the Commercial team in Warsaw. My expertise spans from government contracts, IT implementation, and licensing agreements, to technology related disputes.

I have advised on numerous large scale IT projects, involving comprehensive implementation of complex software in both traditional and SaaS models.

I advise on all aspects of public procurement law, and represent clients in procurement disputes before the National Appeal Chamber and the courts. I have particular experience advising on infrastructure and IT projects, representing both contractors and contracting authorities.

Many of my clients are companies within the IT and technology sectors, although I also work with clients in the healthcare, energy, industrial automation, defence, and retail & consumer space.

My professional interests include legal aspects of the application of the latest technologies, such as blockchain, artificial intelligence, the internet of things, and cybersecurity. I have significant experience of advising tech start-ups.

I am an expert at the Council of the Polish IT and Telecommunications Chamber. I also serve as an expert for the European Assistance for Innovation Procurement initiative. I am a recommended arbitrator for the creative market and culture market at the Arbitration Court at the Polish Confederation Lewiatan.

I am recognised by Chambers & Partners, Legal 500 and Who's Who Legal as a leading individual in TMT, IP and public procurement.
Experience
  • Representing Siemens Mobility in the tender for supply of trains for Warsaw underground.
  • Representing Siemens Mobility in the tender for Intelligent Transport System in Tychy, Poland.
  • Support for Nokia in the creating the consortium for GSM R project for PKP PLK SA.
  • Representing clients in copyright levies disputes.
  • Legal support for Samsung Electronics in outsourcing project.
Education

Studied

  • Law, University of Warsaw

Admissions

  • Polish Bar Association
Testimonials Carousel Megaphone

Testimonials

Tomasz Zalewski is a very concise and approachable legal advisor. Extensive experience in public procurement law. A proper level of commitment.

Legal 500 EMEA, 2025

Tomasz Zalewski has exceptional knowledge of public procurement law. Very responsive and engaged, eager to understand the business context of each case, and find the optimal legal solution for it.

Legal 500 EMEA, 2025

Tomasz Zalewski is very active in the market and he is a really experienced lawyer.

Chambers Europe, 2025

Latest insights

More Insights
featured image

The AI Act Primarily Regulates High-Risk AI Systems

4 minutes Apr 15 2025

Read More
Curiosity line teal background

The summary of the ReArm Europe Plan/Readiness 2030

5 minutes Mar 27 2025

Read More
Curiosity line yellow background

Effective Trade Secret Protection in Public Procurement: A Challenge for Contractors in Poland

4 minutes Feb 10 2025

Read More

News & Deals

More News & Deals

News

Bird & Bird retains top ranking in the 2020 Who's Who Legal's analysis of Data

Feb 10 2020

Read More

News

Tomasz Zalewski recognised as one of the most influential lawyers by the leading daily Polish legal press

Jan 29 2020

Read More

What's on TwoBirds TV?

More Videos
No Image