Soltysinski Kawecki & Szlezak is distinguished by its strength in financial regulatory work, financial sector M&A, and finance. The group is widely recognised as a market leader in payments services, consumer finance, and regulatory enforcement, including investigations and sanctions proceedings. Financial regulatory expert Marcin Olechowski sits at the head of the practice, which is ably supported by Wojciech Iwański, who excels in regulatory banking matters. Mateusz Blocher is the go-to advisor for consumer credit work. Former Deloitte Legal, Gizicki i Wspólnicy sp.k. practice co-head Michał Mostowik joined the practice in February 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The firm stands out thanks to its impressive expertise based on deep and well-established professional experience in the complex field of financial services. Our solicitors not only have an excellent understanding of current legislation and case law, but more importantly, they are able to translate this knowledge into effective and pragmatic action. Their in-depth knowledge of the financial sector ensures that the strategies presented are sound and based on realistic assumptions.’
- ‘The key aspect that I value most is their individual approach to each client. The law firm focuses on understanding the situation and needs, which results in the development of tailor-made solutions. It is this commitment to detail and willingness to seek non-standard but fully legally secure paths that allows them to achieve the best possible results.’
- ‘The team has a very strong client focus and is able to handle complex, multi-country projects in a clear and well-organised way. They stand out by managing cross-border work smoothly and making sure clients always know the status and next steps. Compared to other firms, they use modern tools and structured project methods that save time and increase efficiency. The team works closely together, with people from different backgrounds, and always looks for practical solutions that really help the client’s business, not just the legal side.’
- ‘The people I work with combine strong legal knowledge with a good understanding of business needs. This makes their advice very practical and easy to apply. Mateusz Blocher is especially impressive – he explains complex legal issues in a simple way and always connects them with business goals. He is very quick to respond, even under urgent deadlines, and always delivers reliable and precise answers. What makes him different is his proactive approach, clear communication, and focus on solving problems before they become bigger issues.’
- ‘SK&S combines the capacity of one of the largest law firms in Poland (nearly 200 lawyers, as far as I recall) with the specialist knowledge which is typical for boutique firms. This is a rare combination. It ensures a long bench of specialists. They are able to deliver large projects very quickly and with the top quality. SK&S is great at combining complex and sophisticated matters. This is because it is a large law firm covering all areas of law, including fintech, IP/IT, tax and data protection. They are able to provide multidisciplinary teams with specialist knowledge and excellent responsiveness.’
- ‘Very professional, with a lot of experience and good understanding of the clients' needs.’
Key clients
- Crédit Agricole Corporate and Investment Bank Seoul Branch
- Dowlais Group
- Green Capital S.A.
- Northvolt AB
- Pure AcquiCo GmbH
- PFR Life Science sp. z o.o.
- ResInvest Group A.S.
- The Industrial Bank of Korea
- Alior Bank S.A.
- Allegro Pay
- Autopay
- Bank Millennium S.A.
Work highlights
Advising Intrum in all Polish law aspects of implementing the restructuring of the group, including regulatory consents, corporate reorganisation, and recapitalisation.
Supporting the Industrial Bank of Korea in a project to establish a new subsidiary bank to operate IBK in the European Union.
Acting as a lead counsel on an international query on Autopay’s ability to provide its payment services on a cross-border basis.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Marcin Olechowski
Other key lawyers
Wojciech Iwański; Mateusz Blocher; Joanna Mróz