Legal 500 Ranking!
27.03.2025 News Mergers and acquisitions (M&A) Arbitration Financial litigation Litigation Private Equity Competition and consumer law
The 2025 edition of Legal 500 is out, and we’ve been recognised in 6 categories this year. In addition, 23 of our lawyers received individual awards or were recommended for their work.
We maintained strong performance across multiple categories and made appearance in the last one:
Capital Markets (Tier 3)
Commercial, Corporate and M&A (Tier 3)
Competition/Antitrust (Tier 2)
Dispute resolution (Tier 2)
Private Equity (Tier 2)
TAX (Firms to watch) – new appearance
On an individual level, our team’s achievements this year include:
dr hab. Beata Gessel-Kalinowska vel Kalisz recognised in Dispute resolution as a Leading partner
Piotr Schramm recognised in Dispute resolution as a Leading partner
Krzysztof Marczuk recognised in Capital Markets as a Leading partner
Bernadeta Kasztelan-Świetlik recognised in Competition/antitrust as a Leading partner
We’re also pleased to share that the following individuals have received recommendations: Leszek Koziorowski, Marcin Macieszczak, Michał Bochowicz, Joanna Kisielińska-Garncarek, Maciej Kożuchowski, Dominika Ramirez-Wołkiewicz, Karol Sokół, Maria Dudzińska, Maja Frontczak, Paweł Kwiatkowski, Michał Osowski, Jakub Rowicki, Magdalena Szeplik, Daniel Szemetyłło, Aleksandra Szyszko-Kamińska, Barbara Tomczyk, Michał Wieliński, dr Bartłomiej Woźniak, and Anna Ziewalicz.
We’d like to thank our clients for their continued trust in us and for involving us in complex matters. Congratulations also to all our peers across the industry who have been recognised this year.
Authors

Dr hab. Beata Gessel-Kalinowska vel Kalisz, Prof. INP PAN
Founding and Senior Partner
Attorney-at-law
Arbitration | Litigation | Financial litigation
Dr hab. Beata Gessel-Kalinowska vel Kalisz, Prof. INP PAN
Founding and Senior Partner
Attorney-at-law
A recognised international arbitrator, she has participated in more than 170 cases in domestic and international arbitration (conducted, inter alia, under ICC, SCC, VIAC, LCIA, UNCITRAL, FCC, IAA, SCAI, Lewiatan, KIG, KDPW, SIDiR rules) in the fields of M&A, construction law (inter alia, under FIDIC regulations), energy law and international commercial contracts. Member of advisory bodies and working groups of the world's largest arbitrati...

Piotr Schramm
Partner
Advocate
Litigation | Special projects / Risk & Support | Bankruptcy and restructuring
Partner
Advocate
Joined GESSEL in 2007, became a partner in 2009. Heads both GESSEL's special projects department and the firm's litigation and bankruptcy and restructuring departments. Represents entities and their management boards in disputes, transactions, negotiations and day-to-day business operations. Specializes in providing legal services for current business with a high degree of complexity, ongoing strategic advice, M&A transactions, restructuring ...
Partner
Attorney-at-law
Krzysztof is a lawyer with many years of transaction and regulatory experience. He joined GESSEL in 2007 and has been a partner since 2016. He specializes in raising financing through equity issues in primary and secondary public offerings as well as private placements. He also advises on public and private bond offerings. He provides day-to-day corporate law services to publicly listed companies in all aspects of commercial law, including com...

Bernadeta Kasztelan-Świetlik
Partner
Attorney-at-law
Competition and consumer law
Partner
Attorney-at-law
After a brief period as a junior judge, Bernadeta developed an interest in competition law, then a new discipline in early 1990s Poland. After her first stint at UOKiK, she spent one year leading the legal department of UPC and then joined GESSEL in 2001. In 2014, after moving to the head office of UOKiK, she oversaw the authority’s activities in the realms of corporate concentrations, market collusions, and abuse of dominant market positions....
Partner
Attorney-at-law
Leszek joined GESSEL in 1999 and became a partner in 2002. Since the beginning of his professional career, he has been involved in the Polish capital market. Initially he worked at the Polish Securities and Exchange Commission (now the Polish Financial Supervision Authority); at this time he also held the position of vice chairman of the Examination Commission for Investment Advisors. Since 2013, he has been a member of the Corporate Govern...

Marcin Macieszczak
Managing partner
Attorney-at-law
Mergers and acquisitions (M&A) | Private Equity
Managing partner
Attorney-at-law
Marcin joined GESSEL law firm in 1999. In 2007, he became a partner, and in 2017 – managing partner. He leads the firm's Mergers and Acquisitions (M&A) and Private Equity practices. Marcin specializes in capital transactions in the public and private markets. He has over 20 years’ experience advising on M&A transactions, both on the seller's and buyer's side. An important part of Marcin's practice is working with private equity and ven...

Michał Bochowicz
Partner
Attorney-at-law
Mergers and acquisitions (M&A) | Private Equity | Corporate law
Partner
Attorney-at-law
A partner in the M&A practice. Gaines his experience in transactions in the technology, media and telecommunications (TMT), renewable energy, healthcare and aviation sectors. Michał advised buyers and sellers in some of Poland's largest transactions, particularly technology transactions involving global private equity funds, payment institutions, e-commerce entities and software providers (including SaaS). Is actively involved in global le...

Joanna Kisielińska-Garncarek, PhD
Partner
Attorney-at-law
Arbitration | Litigation
Joanna Kisielińska-Garncarek, PhD
Partner
Attorney-at-law
Joanna joined GESSEL in 2015. She is a partner responsible for conducting domestic and international arbitration proceedings (including before the ICC Court of Arbitration, Swiss Arbitration Centre, International Arbitration Association, Court of Arbitration at the Polish Chamber of Commerce, and the Court of Arbitration at the Lewiatan Confederation, among other forums). She also appears before the general courts, including in particular post-ar...

Maciej Kożuchowski
Partner
Attorney-at-law
Mergers and acquisitions (M&A) | Private Equity | Energy, public procurement, infrastructure projects
Partner
Attorney-at-law
Joined GESSEL as a trainee in December 2005. A member of the team continuously since March 2006, and a partner in GESSEL’s M&A practice since 2016. Specializes in merger and acquisition (M&A) transactions, services for commercial companies (including negotiation of strategic contracts related to operations) and legal aspects of financing processes for entrepreneurs. Much of his practice to date has been devoted to M&A transactio...
Partner
Attorney-at-law
Tax Advisor
Heads the tax law department at GESSEL. Has over 23 years of professional experience in legal and tax advice. Specializes in providing comprehensive tax services to business entities, particularly in respect of income taxes, international taxes, VAT and tax on civil law transactions. Advises on the settlement of various tax credits and deductions, deals with tax planning projects and company restructuring, conducts tax due diligence projects and ...
Partner
Advocate
Works with Polish and international funds and international banks and advises at all stages of complex transactions (on the buyer and seller sides) on share deal and asset deal transactions and corporate restructuring. Advises Polish and international companies, founders and listed companies. Has structured many transactions, demonstrating his excellent analytical skills and extensive knowledge of various legal fields. Has repeatedly demonstra...

Maria Dudzińska
Of Counsel
Attorney-at-law
Litigation | Arbitration | Financial litigation
Of Counsel
Attorney-at-law
Maria has many years of experience in litigation in court, arbitration and post-arbitration cases. A special place in her experience is occupied by corporate disputes - she assists company owners and managers in situations where, due to a difference of opinion, vision or strategy, it is necessary to take steps to secure the interests of the company or its shareholders, and when the conflict begins to escalate she represents clients in court and a...
Counsel
Attorney-at-law
Maja specializes in litigation and domestic and international arbitration proceedings (including, among others, before the ICC Arbitration Court, the Swiss Arbitration Centre, and the Arbitration Court at the National Chamber of Commerce in Warsaw). She gained experience in leading law firms, where she represented clients before Polish and foreign courts and institutions (such as the Financial Supervision Commission, the European Court of Huma...

Paweł Kwiatkowski
Managing Associate
Advocate
Litigation | Arbitration | White-collar crime
Managing Associate
Advocate
Paweł extensive experience in litigation and arbitration. Supports clients at every stage of a dispute: from negotiation, through the proceedings, to enforcement of the resulting settlements. Represents clients in complex matters including, among others, corporate, construction, transactional and IT disputes, as well as white-collar crime criminal proceedings. Has advised on many cases with international elements. With GESSEL since 2012.

Michał Osowski
Managing Associate
Attorney-at-law
Mergers and acquisitions (M&A) | Private Equity
Managing Associate
Attorney-at-law
Michał has nearly a decade of professional experience in corporate law, specializing in mergers and acquisitions. Joined GESSEL in 2016, since then has advised on numerous asset deals and share deals, both on the buy-side and the sell-side, for a variety of clients, including founders, private equity funds and venture capital funds. Has a particular focus on alternative investment funds, including their formation and operations.

Jakub Rowicki
Managing Associate
Advocate
Capital Markets | Mergers and acquisitions (M&A)
Managing Associate
Advocate
Jakub joined the GESSEL's capital market law team in 2020. His experience in the ECM sphere focuses on advising on public offerings of shares combined with IPOs as well as subsequent public offerings, including those conducted through Accelerated Book Building. He also advises on mergers and acquisitions involving public companies, including those conducted in the form of a tender offer for the sale of shares. At the same time, he specializ...
Managing Associate
Advocate
Magda joined the GESSEL team in 2012 and became managing associate in 2019. She mainly advises on public issues of shares and bonds, in particular working on drafting prospectuses and reviewing and negotiating agreements accompanying public offerings. She also focuses on advice related to compliance with disclosure obligations, in particular advising during administrative and criminal proceedings regarding MAR. In addition, Magda advises compa...
Managing Associate
Advocate
Daniel also has experience with international transactions on the commercial properties market. Before joining GESSEL, worked as an in-house counsel at one of Poland’s largest civil engineering companies and with a number of Polish law firms. With GESSEL since 2018.

Aleksandra Szyszko-Kamińska
Managing Associate
Attorney-at-law
Mergers and acquisitions (M&A)
Managing Associate
Attorney-at-law
Aleksandra has 18 years of experience in providing legal services to business entities, gained with law firms (14 years) and with a private equity fund (4 years) as an in-house lawyer, a track record which affords her instinctive understanding of the perspectives of various participants in complex projects. Advises Polish and foreign clients, including private equity and venture capital funds, at every stage of the transaction, from structurin...
Senior Associate
Advocate
Barbara joined GESSEL in 2018 and is a member of the arbitration team. She represents clients both before the general courts and in domestic and international arbitration (at, among other forums, the International Chamber of Commerce in Paris, the Arbitration Court of the Polish Chamber of Commerce in Warsaw, and the Arbitration Court of the Lewiatan Confederation). Her practice to date has been focused on disputes concerning breach of represe...

Michał Wieliński
Managing Associate
Attorney-at-law
Capital Markets | Mergers and acquisitions (M&A) | Corporate law
Managing Associate
Attorney-at-law
Joined GESSEL in 2021. His main area of expertise is capital market law. Michał advises on mergers and acquisitions and corporate disputes. He handles transactions related to raising equity and debt financing through issue of financial instruments. Advises on flotations on the Warsaw Stock Exchange and the NewConnect market. Handles transactions of primary and secondary public offerings (IPOs, SPOs), accelerated book-building processes (ABB), pub...

Bartłomiej Woźniak PhD
Managing Associate
Advocate
Mergers and acquisitions (M&A) | Private Equity | Corporate law
Managing Associate
Advocate
Joined GESSEL in 2014. Has been a Managing Associate in the Mergers and Acquisitions team since 2020. Specializes in M&A transactions in the private market. Has more than 10 years of experience advising financial investors (including PE/VC funds), strategic investors and company founders. Advises on share deal and asset deal transactions on both the buyer and the seller sides. Has participated in acquisitions conducted in the form of buy-o...
Managing Associate
Advocate
Anna specialises in handling complex litigation, especially with international elements. She represents clients before common courts, administrative courts and the Supreme Court. Corporate disputes occupy an important place in her practice - she provides comprehensive services to companies, partners and shareholders both in terms of profiling and resolution of such disputes. She has extensive experience in business disputes, resulting, inter a...
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