Tatiana Siakka is a competition law specialist with wide-ranging experience in both transactional and contentious matters. She is a noted practitioner, with The Legal 500 describing her as an "outstanding competition lawyer" whose "knowledge of the subject is second-to-none". Tatiana advises clients on all aspects of EU and UK competition law and related commercial strategy, and has successfully represented clients before the European and UK courts, as well as before the European Commission and the CMA.
In addition to her transactional practice – routinely handling merger control filings, global FDI screening and clearances under the UK National Security and Investment Act – Tatiana has extensive experience in high stakes competition litigation in the EU and UK courts, including the High Court, the Competition Appeal Tribunal and the Court of Appeal, having acted in seminal and high profile proceedings for both defendants and claimants, including the leading UK authority on unlawful information exchange (Balmoral Tanks v. CMA), as well as two of the largest competition damages claims in the UK – the interchange fees and air cargo litigation – setting a precedent regarding the ability to recover global damages in England.
Tatiana is an appointed member of the Law Society’s EU Committee. She is regularly invited to speak on competition law developments and contributes towards leading competition publications.