
GESSEL Attorneys at Law is sought after by a variety of investment banks, brokerage houses and public companies for both ECM and DCM mandates. IPOs, SPOs, FPOs and public offerings all fall within the team’s expertise.The practice is co-led by Leszek Koziorowski and Krzysztof Marczuk, who specialises in proceedings before the Polish Financial Supervision Authority. Both Marczuk and Magdalena Szeplik are praised as ‘exceptional lawyers’.
Testimonials
Collated independently by Legal 500 research team.
‘Gessel Law Firm has a great deal of experience and competence in advising on the capital market. They act very quickly and effectively. I would not hesitate to entrust even the most difficult cases to them.'
‘Krzysztof Marczuk and Magdalena Szeplik are exceptional lawyers. Business-oriented, very knowledgeable and fast acting.’
‘Business-oriented approach and thorough understanding of the company's needs. In the documentation they prepare, they approach the topic in a multi-threaded manner, anticipating various scenarios and often proposing their own solutions.’
‘Krzysztof Marczuk, Magdalena Szeplik, and Jakub Rowicki - outstanding professionalism.'
- 'Partnership approach towards the issuer and other advisors. Proactive approach and original solutions addressing the client's needs. Delivers documents punctual or before deadlines.’
‘A team of very high professional qualifications and with extensive experience. We turn to them in difficult and very difficult cases.’
‘We handle most of the cases with Michał Wieliński. He is an experienced lawyer who specialises in capital acquisition transactions. We have conducted two public offerings of shares with him. Both were successful.’
Key clients
- Cavatina Holding S.A.
- Kredyt Inkaso S.A.
- Creotech Instruments S.A.
- Olivia Fin SKA sp. z o.o.
- Bioceltix S.A.
- DataWalk S.A.
- WPD Pharmaceuticals sp. z o.o.
- Genomtec S.A.
- QNA Technology S.A.
- BioResearch Pharma S.A.
- Sescom S.A.
Work highlights
- Advised Cretech Instruments S.A. on a secondary public offering worth approximately PLN 60m.
- Supporting Cavatina Holding S.A. with its bond issue programme, working on the third bond issue and securing approval for the issue prospectus.
- Advised Bioceltix and Infini ASI fund, as well as the managers and joint-book runners, Trigon Investment Banking and Navigator DM, on the conduct of a prospectus-free public offering of new issue shares and existing shares under the ABB procedure.
Lawyers

Practice head
The lawyer(s) leading their teams.
Leszek Koziorowski, Krzysztof Marczuk