Agnieszka Marciniak advises clients on UK and EU competition law, including merger control, foreign direct investment, competition conduct matters, and private damages claims.
Prior to joining private practice, Agnieszka spent over five years in-house at a major multinational pharmaceutical company, where she advised on regulatory and litigation matters. She collaborated closely with intellectual property, regulatory, and commercial teams to support product launch strategies and managed damages claims arising from wrongfully granted injunctions.
Her experience also includes legal and regulatory investigations in the media and telecoms sectors, gained through her roles at a leading media and entertainment company and in the competition team at Ofcom.
With a focus on life sciences, media, and telecoms, Agnieszka combines competition law expertise with practical industry insight. She regularly advises on complex merger control issues, strategic regulatory engagement, and compliance, as well as antitrust investigations, including dawn raids.
Experience
- Honeywell International in obtaining international merger control and regulatory clearances for its US$2.16 billion acquisition of Sundyne.
- LigaChem Biosciences in obtaining NSIA clearance in the UK for its US$25 million strategic investment in Iksuda Therapeutics.
- Monsanto in obtaining Phase 2 clearance with disposals from the European Commission and other regulators globally, for its US$66 billion acquisition by Bayer.
Perspectives
Credentials
Education
- Advanced Programme on Competition Law and Digital Economy, University of Oxford, 2025
- Postgraduate Diploma, EU Competition Law, King's College London
- LL.M., International and European Commercial Law, Brunel University London, 2011
- LL.B. (Hons), Law, London Metropolitan University, 2010
Admissions
- New York
- Brussels, Belgium
- Registered Foreign Lawyer (SRA), England & Wales
Activities
- Member, Global Agri-Business Alliance, Advisory Panel in Competition Matters
Languages
- Polish