Heiner Mecklenburg

Heiner Mecklenburg

Senior Associate

Heiner advises on all matters of German and EU competition law and represents clients before the German Federal Cartel Office, the European Commission as well as German and European courts. 

His practice focuses on follow-on damages actions, merger control and co-operations (e.g. joint venture and distribution agreements) as well as cartel and abuse of dominance proceedings. He also advises on matters of digital regulation (DMA) and represents clients during sector inquiries.

Heiner holds a law degree from Germany’s top-ranked Bucerius Law School in Hamburg. He has a particular expertise in antitrust economics and holds a Master of Science in Political Economy from the London School of Economics and Political Science (LSE).

Published Work

  • WuW 2024, 63-69, “Representative cartel damages actions - Will the German Act implementing the EU Representative Actions Directive bring a paradigm shift?“
  • WuW 2021, 206-212, “Return of the warehousing?“ A transaction structure reconsidered at the crossroads between the EU Commission in Canon/TMSC and the European Court of Justice in Ernst & Young
  • EWiR 2015, 197, „Bemessung von EU-Kartellgeldbußen unter Berücksichtigung von Innenumsätzen vertikal integrierter Kartellanten („Guardian Industries und Guardian Europe/Kommission“)“, Anmerkung zu EuGH, Urt. v. 12.11.2014 – Rs C-580/12P (EuG), EU:C:2014:2363 = EuZW 2015, 112 = NJW 2015, 465

Leadership Positions And Professional Affiliations

  • Member, Studienvereinigung Kartellrecht e.V.



Admitted as German Rechtsanwalt, 2014


Master of Science (M.Sc.) in Political Economy of Europe, London School of Economics and Political Science (LSE), 2013

Second German Law Degree, Higher Regional Court of Schleswig-Holstein, Germany, 2012

First German Law Degree, Hamburg, Germany, 2010

Baccalaureus Legum (LL.B.), Bucerius Law School, Hamburg, Germany, 2008

A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.