The professionals at Olesinski & Wspolnicy present expertise across various areas of TMT law, including compliance, product launches, litigation, licensing, and contracts. Joanna Lentka-Wróbel heads the practice from Wroclaw, specialising in innovative tech and IT solutions. She receives key support from the Warsaw office, where Bartosz Kolarz, Małgorzata Paja, and Paweł Kaczmarek handle data privacy, IP protection, and e-commerce respectively.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘Bartosz Kolarz is a highly competent lawyer specialising in new technologies. He is always well-prepared, with strong legal insight and a clear understanding of the tech landscape. His professionalism and attention to detail make him a trusted and reliable advisor. I fully recommend working with him.’
- ‘Bartosz Kolarz is an excellent lawyer, an expert in e-commerce and consumer law, thus is able to point out main risks and propose different solutions. I would highly recommend him if you need someone who can adapt to your business needs.’
- ‘For sure, Olesiński's TMT team has strong expertise in their field, yet they understand and are able to implement business's needs. They are very responsive and able to follow switch of business direction of the project.’
- ‘Paweł Kaczmarek is a top specialist in his field. His advice is clear, business-oriented, and pragmatic. His cross-disciplinary expertise ensures projects are handled comprehensively and with well-rounded guidance. Bartosz Kolarz is an excellent project manager who ensures smooth execution and client comfort throughout the process.’
- ‘The TMT team is great to work with—knowledgeable, responsive, and business-focused. They really understand the tech world and its legal challenges. I especially recommend Bartosz Kolarz, leading associate, for his deep tech expertise and consistently strong preparation. He's a key asset to the team. What sets them apart from other law firms is their friendly approach and ability to propose practical, forward-thinking solutions.’
- ‘I have had the opportunity to work with Bartosz Kolarz on TMT, IP and data matters, and he clearly stands out in these practice areas. What differentiates him from competitors is his ability to connect highly technical regulatory requirements with the practical realities of clients’ businesses. He is not only deeply knowledgeable about data protection frameworks and digital regulations, but also understands the operational and commercial challenges faced by companies in the technology, media and telecoms sectors. I particularly value Bartosz’s clarity of advice, responsiveness, and his proactive approach.’
Key clients
- Booksy International sp. z o.o. Mudita sp. z o.o. Rebel Wolves sp. z o.o. Tarczyński S.A. ICB Pharma sp. j. Sportano.com sp. z o.o. GPRE Management sp. z o.o. Kinguin Digital Limited My Mirror AI sp. z o.o. Natura sp. z o.o.
Work highlights
Offered strategic advisory support to Booksy International sp. z o.o. in the launch of Booksy Med.
Provided advisory services for Mudita sp. z o.o. in connection with the launch of Mudita Kompakt.
Provided legal advisory services to Tarczyński S.A. in a process of digitisation and automation of production, including the implementation of new SAP solutions for managing new warehouses and production planning, as well as in the international roll-out of IT systems to foreign affiliated entities.
Practice head
Joanna Lentka-Wróbel
Other key lawyers
Bartosz Kolarz; Małgorzata Paja; Paweł Kaczmarek