Results of Chambers and Partners Europe 2025 ranking
20.03.2025 News Mergers and acquisitions (M&A) Arbitration Capital Markets Litigation
The Chambers and Partners Europe 2025 rankings are out, and we’re grateful to be recognized once again across multiple practice areas, reflecting our commitment to growth and adaptation to meet our clients’ evolving needs.
We’re especially excited about our progress in M&A, where we’ve reached high-end capability status. We have transitioned in the Corporate/M&A category from Mid-Market, where we were previously ranked in Band 1, to High-end Capability. Although we are now positioned in Band 4, this move reflects our firm’s evolving focus and enhanced capability to handle more complex and high-value M&A transactions.
Additionally, we maintain strong performance across multiple other categories:
- Private Equity, Band 3
- Capital Markets: Equity, Band 4
- Litigation, Band 6
We are also pleased to highlight the individual accomplishments of our team members:
Beata Gessel-Kalinowska vel Kalisz, Band 1 in Arbitration
Krzysztof Marczuk, Band 4 in Capital Markets: Equity
Maciej Kożuchowski, Band 4 in Corporate/M&A: High-end Capability
Marcin Macieszczak, Band 3 in both Corporate/M&A: High-end Capability and Private Equity
Michal Bochowicz, recognized as Up and Coming in Corporate/M&A
Anna Ziewalicz, recognized as Associates to watch in Litigation, special congratulations to Anna on being recognized for the first time in the Chambers Europe ranking!
We are deeply grateful to our clients, whose trust and collaboration allow us to contribute to their strategic projects. Your ongoing support makes these accomplishments possible – thank you!
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...
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...

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...

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...
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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