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Krzysztof Sikora
Counsel

Krzysztof Sikora

Languages
  • Polish
  • English
Social media

Krzysztof Sikora is a counsel in CMS Poland’s Antitrust, Competition and Trade team and a Polish-qualified legal adviser. His practice focuses on complex antitrust matters, including investigations, competitor interactions, distribution arrangements and competition compliance. He also has extensive experience in merger control, foreign investment screening and public procurement.

Krzysztof represents major Polish and international businesses in sensitive antitrust matters and advises them on complex competition law issues arising in their day-to-day operations and strategic projects. His experience includes antitrust investigations and dawn raids, major appeals against competition authority decisions, information exchange and cooperation between competitors, vertical agreements and distribution models, as well as the design and implementation of competition compliance programmes.

He regularly leads competition law workstreams on significant M&A transactions and advises clients throughout merger control and FDI processes – from the initial assessment of filing requirements and transaction strategy through to obtaining regulatory clearances.

Krzysztof also has extensive public procurement experience, advising both bidders and contracting authorities on major procurement projects and representing clients in procurement disputes before the National Appeals Chamber (KIO) and the courts. He has particular expertise in matters at the intersection of public procurement and competition law.

Before joining CMS, Krzysztof spent five years at the Polish Competition Authority (UOKiK), where he worked on antitrust and merger cases, represented the authority before the courts and led UOKiK teams conducting dawn raids. He also took part in European Commission dawn raids and was involved in the work of the European Competition Network.

His combination of private practice and first-hand regulatory experience enables him to anticipate how competition authorities are likely to approach complex cases and to advise clients on both legal strategy and the practical management of regulatory risk.

Education

  • Legal advisor, Warsaw Chamber of Legal Advisors, Warsaw
  • Master’s degree, Warsaw University, Warsaw

Further reading

  • CMS advises listed Polish household appliances company, Amica, on the acquisition of the UK-based CDA

  • CMS advises on the sale of Żabka

  • CMS advises Swedish investor on acquisition in CEE region

Insights by Krzysztof

CMS advises consortium on a recommended EUR 7.8bn all-cash offer for InPost

CMS advises consortium on a recommended EUR 7.8bn all-cash offer for InPost

24 Feb 2026 2 min read
EU–India FTA – the next big trade shift

EU–India FTA – the next big trade shift

02 Feb 2026 4 min read
Poland to adopt new rules for FDI screening – proposed changes expected in July 2025

Poland to adopt new rules for FDI screening – proposed changes expected in July 2025

24 Jun 2025 4 min read
Competition+

Competition+

06 Mar 2025 5 min read
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