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Dr. Clemens Ziegler

Senior Associate

Dr. Clemens Ziegler
English, Italian, French, German
Practice Group

Not least due to his experience in competition compliance officer positions, Hogan Lovells senior associate Clemens Ziegler is committed to help businesses to quickly adapt to new requirements, to realize cost savings and other efficiencies. He provides business-oriented and pragmatic advice on competition compliance matters. In addition to this, Clemens handles complex, multi-jurisdictional merger transactions, as well as other types of regulatory filings. He represents clients with merger or joint venture plans before the European Commission and the German Bundeskartellamt (Federal Cartel Office), but also coordinates merger and antitrust filings with local counsel in other jurisdictions.

Clemens' experience includes counselling on appropriate preparatory measures before implementing a transaction, including assisting in developing communications, media and lobbying strategies, as well as, if required, the preparation of remedy proposals. Clemens offers his services to help businesses adapt to changing regulatory requirements, for instance by developing and implementing compliance and training programmes. He has also worked on abuse of dominance, cartel and State aid cases.

Clemens has particular experience in the maritime industry, but has also advised clients in the energy and natural resources and telecommunications industries, as well as in a number of industrial manufacturing sectors, e.g. pharmaceuticals. Clemens has been recommended by Legal 500 2015 as a ''dedicated' senior associate'. Clemens joined Hogan Lovells in Brussels in 2013. From 2007 to 2008 and from 2009 to 2013, he worked in the Brussels and Washington DC offices of another major international law firm. Clemens' native language is German; he is fluent in English and Italian, as well as proficient in French.

Recommended by Legal 500 2015 as a ''dedicated' senior associate'.

Representative experience

Preparing a competition compliance programme for operational cooperation between leading liner shipping companies and assisting with its implementation.

Advising a leading container terminals operator on competition compliance matters.

Advising numerous clients active in the industrial manufacturing, pharmaceutical, medical devices and consumer products sectors in cases involving multijurisdictional merger filings.

Advising natural gas supplier in preparation of merger control filing to European Commission regarding acquisition of sole control in natural gas trading and storage company.

Representing construction materials producer in planned acquisition of competitor in merger control proceedings before European Commission, German Federal Cartel Office, and Düsseldorf Court of Appeal.

Representing demand response company and licensed energy supplier in application for annulment of a Commission State aid decision before General Court of the European Union.

Assisting leading liner shipping company with regulatory filings in numerous jurisdictions regarding operational cooperation leading to cost savings in the hundreds of millions of euros.

Education and admissions


  • Dr. iur., Philipps-Universität Marburg, 2009
  • LL.M., Georgetown University Law Center, 2009
  • Second State Exam in Law, State of Rhineland-Palatinate, 2005
  • First State Exam in Law, JMU Würzburg (Julius-Maximilians-Universität), 2003


  • Studienvereinigung Kartellrecht e.V.

Bar admissions and qualifications

  • Frankfurt, Germany
  • New York
  • Brussels (E-List)


Recommended by Legal 500 Belgium

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