GESSEL is recognised in Legal 500 EMEA 2026 rankings, with 6 practice areas ranked and 5 lawyers recognised in the individual rankings. In addition, 10 lawyers are recognised as recommended lawyers, confirming the firm’s strength across its core practice areas.

These recognitions go beyond the prestige of the ranking itself. They reflect the quality of work delivered to clients and the trust placed in the firm in handling complex and business-critical matters. At the same time, they are consistent with direct client feedback, including strong satisfaction in terms of billing transparency and efficiency, as well as a high Net Promoter Score, demonstrating that clients are willing to recommend the firm’s services further.

The following practice areas are ranked:
🟧 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

The following lawyers are recognised in the individual rankings:
🟧 Capital markets: Krzysztof Marczuk, Leading Partner
🟧 Commercial, corporate and M&A: Dr Bartłomiej Woźniak, Leading Associate
🟧 Competition/antitrust: Bernadeta Kasztelan-Świetlik, Leading Partner
🟧 Dispute resolution: Dr hab. Beata Gessel-Kalinowska vel Kalisz, Hall of Fame, Piotr Schramm, Leading Partner

Dr hab. Beata Gessel-Kalinowska vel Kalisz is promoted to the Hall of Fame, recognising her longstanding involvement in market leading disputes and arbitration work.

Dr Bartłomiej Woźniak is recognised for the first time as Leading Associate in Commercial, Corporate and M&A, reflecting the continued development of the firm’s transactional practice.

GESSEL lawyers are also recognised by Legal 500 as recommended lawyers in the editorial sections:
🟧 Capital markets: Leszek Koziorowski, Magdalena Marczuk, Michał Wieliński, Jakub Rowicki
🟧 Commercial, corporate and M&A: Marcin Macieszczak, Maciej Kożuchowski, Michał Bochowicz, Karol Sokół
🟧 Competition/antitrust: Natalia Leśna
🟧 Dispute resolution: Joanna Kisielińska-Garncarek
🟧 Private equity: Marcin Macieszczak, Maciej Kożuchowski
🟧 Tax: Dominika Ramírez-Wołkiewicz

Authors

GESSEL recognised in Legal 500 EMEA 2026 rankings

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

Dr hab. Beata Gessel-Kalinowska vel Kalisz, Prof. INP PAN

Founding and Senior Partner
Attorney-at-law

International arbitrator, expert in mergers and acquisitions, private equity / venture capital, and business law. Founder and senior partner of the GESSEL law firm. Professor at the Institute of Law Studies of the Polish Academy of Sciences (2025–) and member of its Academic Council (2023–). Member of the Permanent Court of Arbitration in The Hague (2024–). President of the ICC Poland National Committee (2025–). Member of the ICC International Court of Arbitration in Paris (2015–2021). President of the Lewiatan Court of Arbitration from 2011 to 2017, and since 2017 its Honorary President.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Marcin Macieszczak

Managing Partner
Attorney-at-law

Mergers and acquisitions (M&A) | Private Equity

Marcin Macieszczak

Marcin Macieszczak

Managing Partner
Attorney-at-law

Marcin Macieszczak heads GESSEL’s Mergers and acquisitions (M&A) and Private Equity practices. He has led transaction teams in more than 100 M&A and private equity transactions, advising both sell-side and buy-side clients in some of the most complex investment and capital market processes. He advises clients on key ownership and investment decisions, combining extensive legal expertise with a deep understanding of business realities and market expectations.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Leszek Koziorowski

Partner
Attorney-at-law

Capital Markets

Leszek Koziorowski

Leszek Koziorowski

Partner
Attorney-at-law

His legal practice focuses on corporate advice for publicly listed companies, public issues of shares and bonds, mergers and acquisitions of commercial companies, and formation and operation of brokerage houses and investment funds. He has successfully advised on numerous corporate disputes. He is a specialist in corporate relations in public companies and the functioning of governing bodies at public companies as well as in the communication of public companies with the market, including the performance of disclosure obligations.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Michał Bochowicz

Partner
Advocate

Mergers and acquisitions (M&A) | Private Equity | Corporate law

Michał Bochowicz

Michał Bochowicz

Partner
Advocate

Michał Bochowicz is a partner at GESSEL and a leader in its top-ranked Mergers & Acquisitions (M&A) practice. He manages complex M&A and private equity projects, representing Polish and international clients in transactions of strategic importance to their growth.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Bernadeta Kasztelan-Świetlik

Partner
Attorney-at-law

Competition and consumer law

Bernadeta Kasztelan-Świetlik

Bernadeta Kasztelan-Świetlik

Partner
Attorney-at-law

An expert in competition and consumer law with extensive experience in both the private and public sectors. She was associated with the Office of Competition and Consumer Protection (UOKiK) for 13 years, serving as Vice President from 2014 to 2017, where she oversaw the work of three key departments: Concentration Control, Competition Protection, and Legal. Privately, she is passionate about amateur theatre – directing and performing in productions – as well as literature, gardening, and playing the piano.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Joanna Kisielińska-Garncarek, PhD

Partner
Attorney-at-law

Arbitration | Litigation

Joanna Kisielińska-Garncarek, PhD

Joanna Kisielińska-Garncarek, PhD

Partner
Attorney-at-law

Joanna specializes in arbitration and litigation, acting as counsel and arbitrator. Her practice includes disputes in the broad field of business law, including international trade and M&A transactions.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Maciej Kożuchowski

Partner
Attorney-at-law

Mergers and acquisitions (M&A) | Private Equity | Energy, public procurement, infrastructure projects

Maciej Kożuchowski

Maciej Kożuchowski

Partner
Attorney-at-law

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. Maciej has over 20 years of experience in providing legal advice in M&A transactions, both on the seller's and buyer's sides, and on the side of both financial and strategic investors.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Krzysztof Marczuk

Partner
Attorney-at-law

Capital Markets

Krzysztof Marczuk

Krzysztof Marczuk

Partner
Attorney-at-law

Krzysztof has extensive experience in securities transactions in the capital market (ECM, DCM, M&A), particularly in conducting public and private offerings, as well as general advice on commercial law, including corporate governance. He advises public companies, selling shareholders, investors, investment companies and investment banks in various types of capital market transactions, including regulatory aspects.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Dominika Ramírez-Wołkiewicz

Partner
Attorney-at-law
Tax advisor

Tax law | Private Clients

Dominika Ramírez-Wołkiewicz

Dominika Ramírez-Wołkiewicz

Partner
Attorney-at-law
Tax advisor

Dominika specialises in tax law and heads the tax law department at GESSEL. She advises businesses on income tax, international taxation, VAT and civil law transaction tax. She advises on tax planning, business restructuring and tax due diligence projects, and represents clients in tax and court proceedings.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Piotr Schramm

Partner
Advocate

Litigation | Special projects / Risk & Support | Bankruptcy and restructuring

Piotr Schramm

Piotr Schramm

Partner
Advocate

Heads both GESSEL's special projects department and the firm's litigation and bankruptcy and restructuring departments. Works according to the principle that "the success of actions taken is measured by the amount of time devoted to them."

GESSEL recognised in Legal 500 EMEA 2026 rankings

Karol Sokół

Partner
Advocate

Mergers and acquisitions (M&A) | Private Equity | Corporate law

Karol Sokół

Karol Sokół

Partner
Advocate

Karol has extensive experience advising on asset and share transactions, restructuring transactions and financial matters. Has advised on a number of high-profile transactions for buyers and sellers in various industries, including IT, manufacturing, retail and real estate. Has also worked with banks, private equity and venture capital funds. Joined GESSEL in 2010.


GESSEL recognised in Legal 500 EMEA 2026 rankings

Jakub Rowicki

Managing Associate
Advocate

Capital Markets | Mergers and acquisitions (M&A)

Jakub Rowicki

Jakub Rowicki

Managing Associate
Advocate

Specializes in capital markets law, both equity and debt. He advises companies in the processes of obtaining financing (especially in the form of public securities offerings) as well as in investment processes. He also provides advice to public companies on day-to-day matters, including implementation of disclosure obligations and the handling of corporate events.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Michał Wieliński

Managing Associate
Attorney-at-law

Capital Markets | Mergers and acquisitions (M&A) | Corporate law

Michał Wieliński

Michał Wieliński

Managing Associate
Attorney-at-law

Michał is an attorney-at-law specializing in capital markets and M&A law. He advises issuers of securities, financial institutions, sellers and both domestic and foreign investors.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Bartłomiej Woźniak, PhD

Managing Associate
Advocate

Mergers and acquisitions (M&A) | Private Equity | Corporate law

Bartłomiej Woźniak, PhD

Bartłomiej Woźniak, PhD

Managing Associate
Advocate

Specializes in merger and acquisition (M&A) transactions. Has been providing services to financial (PE/VC funds) and strategic investors for more than 10 years. Has experience of cross-border M&A transactions.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Magdalena Marczuk

Counsel
Advocate

Capital Markets | Corporate law

Magdalena Marczuk

Magdalena Marczuk

Counsel
Advocate

Magda is an experienced lawyer focused on corporate and transactional services for public companies in areas such as compliance with disclosure obligations and administrative and criminal proceedings regarding the Market Abuse Regulation. Also advises on regulatory issues and ESG-compliant corporate governance.

GESSEL recognised in Legal 500 EMEA 2026 rankings

Natalia Leśna

Senior Associate
Attorney-at-law

Competition and consumer law

Natalia Leśna

Natalia Leśna

Senior Associate
Attorney-at-law

She specializes in competition law and consumer protection law. Natalia has many years of experience in conducting explanatory and antitrust proceedings before the President of the Office of Competition and Consumer Protection (UOKiK).

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GESSEL recognised in Legal 500 EMEA 2026 rankings