
CMS advises corporates and senior individuals on all aspects of business criminal law, including anti-bribery and corruption, anti-money laundering, sanctions and criminal liability arising from corporate activity. The team works across sectors such as financial services, life sciences, energy, infrastructure, defence and TMT. Arkadiusz Korzeniewski leads the group and is a trusted advisor to management boards, supervisory boards and legal departments. Mariusz Minkiewicz is regularly sought out to conduct internal investigations, and Mateusz Gerlach routinely provides crisis management advice following cybersecurity or cybercrime incidents.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- ‘The team is very competent in white collar crime practice, with strong experience, communicate clearly, are reliable.’
- ‘Arkadiusz Korzeniewski has strong practice in this area, is very responsive, communicates clearly, thinks strategically.’
- ‘What makes this practice unique is its combination of deep sector expertise, client-entered collaboration, and a forward-thinking approach to problem-solving. The team is known for its ability to deliver technically sophisticated advice while maintaining a practical, commercially focused perspective. I value the team’s responsiveness, strategic insight, and ability to anticipate issues before they arise—qualities that consistently set the practice apart from competitors.’
- ‘The individuals I work with stand out for their combination of technical excellence, commercial understanding, and genuine commitment to client success. What truly differentiates them from competitors is not only their deep subject-matter expertise but also their ability to translate complex issues into clear, actionable advice. They combine rigorous analytical skills with a pragmatic, solutions-oriented mindset—qualities that consistently deliver real value to clients.’
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

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
Arkadiusz Korzeniewski
Other key lawyers
Mariusz Minkiewicz; Mateusz Gerlach

