Stephanie Reinart focuses on EU and German competition law as well as EU and German regulatory law. 

German Competition

Stephanie’s experience includes securing merger clearance from the German Federal Cartel Office (Bundeskartellamt) in numerous cases and successfully defending clients in investigations of alleged cartel conduct and other anti-competitive practices conducted by the German Federal Cartel Office.

EU Competition

Stephanie has handled numerous international cartel cases in which she defended companies in proceedings before the European Commission and the EU Courts. 

Stephanie’s EU competition law experience extends to advising clients on how to structure agreements, including strategic alliances, cooperation, licensing and supply agreements, in order to achieve compliance with competition law rules. She also frequently counsels companies holding a dominant market position on how to avoid abusive conduct. 

Stephanie regularly conducts training sessions on competition law matters for company employees throughout Europe. She also prepares antitrust compliance programmes and assists companies with their implementation.

State aid 

Stephanie assists clients involved in State aid investigations launched by the European Commission. 


German, English, French


  • Chambers Global – ‘Foreign Expert’ (Competition/European Law)


  • University of Trier, Master of Laws, 1993


Contributor to Van Bael & Bellis, Competition Law of the European Community (fifth edition, Kluwer, 2010), a standard work of reference in the field of EU competition law.

Professional Membership

Member of “Studienvereinigung Kartellrecht”, the German Competition Lawyers’ Association

Bar Admissions


Notable assignments

  • Acting as lead counsel before the German Federal Cartel Office in a high-profile case which received a Global Competition Review Matter of the Year award: successfully opposing the 2010 joint venture between BHP Billiton and Rio Tinto on behalf of the Japanese steel industry.

  • Assisting NSSMC in obtaining clearance from the German Cartel Office for the acquisition of a minority shareholding in Vallourec.

Publications and insights

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    • 08/01/2021
    • Articles

    German Government prohibits Chinese acquisition under foreign direct investment rules

    On 2 December 2020, the German Government prohibited on public security grounds the sale of the German Institut für Mobil- und Satellitenfunktechnik (“IMST”), a specialist in satellite and communications technologies, to Addsino, a subsidiary of State-owned defence group China Aerospace Science and Industry Corp (“CASIC”). This is only the second time that the German Government has decided to prohibit a transaction on the basis of the Foreign Trade and Payments Ordinance, and is technically the first prohibition to take effect as the first transaction had been abandoned once it became clear that the prohibition was imminent.

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    • 08/03/2017
    • Articles

    German FCO concludes investigation into district heating markets

    Abuse of Dominance | Germany - The German Federal Cartel Office (“FCO”) has concluded proceedings initiated due to concerns of abusive pricing practices in the district heating markets by...

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    • 15/02/2017
    • Articles

    German Federal Court of Justice rules on rental fees for broad band cables conduits

    Abuse of Dominance | Germany - In a judgment of 24 January 2017, the German Federal Court of Justice (“the Court”) ruled on whether Telekom Deutschland had abused its dominant position on the market for access to cable conduits by way of excessive pricing.

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