Hamburg
+49 40 35 52 80-68 +49 40 35 52 80-80 s.bretthauer@heuking.de
Languages
German,
English
Practice groups/Expertise
Consulting focuses
- Antitrust Law
- Distribution Law
- Arbitration
- Merger Control
- Antitrust Litigation
- Antitrust Compliance
- Antitrust fine proceedings
- Energy Law
Vita
- Head of the Antitrust Practice Group
- Admitted to the Bar since 2002
- Education and former activities
- University of Würzburg (Dr. jur.), Lecturer at the University of Hamburg2002
- Legal Traineeship in the Antitrust Law Department of a leading U.S. law firm in Washington, D.C./U.S.A.
- Legal Trainee (Referendar) in the District of the Higher Regional Court of Bamberg1999-2001
- Julius Maximilians University of Würzburg1997-1999
- University of Sheffield/United Kingdom1996-1997
- University of Trier1994-1996
Affiliations
- International Bar Association (IBA)
- German Association for Distribution Law (Deutsche Gesellschaft für Vertriebsrecht e.V.)
- German Antitrust Law Association
- German Institution of Arbitration (DIS)
- Jurists Alumni Würzburg
- Chair of the northern regional section of Studienvereinigung Kartellrecht e.V. (German Antitrust Law Association) (2019-2021)
Dr. Stefan Bretthauer's Distinctions
JUVE Ranking Wirtschaftskanzleien 2025/2026
Lexology Index: Germany – Competition 2026
Legal 500 Deutschland 2025
Handelsblatt: Deutschlands Beste Anwälte 2025
Best Lawyers 2026
JUVE Handbuch Wirtschaftskanzleien 2024/2025
Handelsblatt: Deutschlands Beste Anwälte 2024
Best Lawyers 2025
Legal 500 EMEA 2024
Legal 500 EMEA 2024
Legal 500 Germany 2024
JUVE Handbuch Wirtschaftskanzleien 2023/2024
Best Lawyers 2024
Handelsblatt: Deutschlands Beste Anwälte 2023
Legal 500 Germany 2023
Latest news
Publications
2025
The DOJ's new bounty system: Revolution in US antitrust law and implications for (German) companies
Update Compliance 11/2025,
together with
Dr. Martin Ströhmann, LL.M. (Chicago)
Bundeskartellamt publishes final report on sector inquiry into fuel wholesale: Critical view of price quotation systems – a precedent for measures under the new Section 32f GWB?
Update Antitrust 1/2025, 24. February 24, 2025,
together with
Jia-Xi Liu
2024
ICLG – Vertical Agreements and Dominant Firms 2024
Germany: Vertical Agreements and Dominant Firms 2024,
together with
Dr. Reinhard Siegert
Commentary on the „appreciable effect” of the restraint of competition according to Art. 101(1) TFEU and on Art. 5-10 of the Vertical Block Exemption Regulation
Beck’scher Online-Kommentar zum Kartellrecht
2023
Merger Control Country Comparative Guide 2023 (Germany)
ICLG – Vertical Agreements and Dominant Firms 2023
Germany: Vertical Agreements and Dominant Firms 2023,
together with
Dr. Reinhard Siegert
2022
International Comparative Legal Guide - Vertical Agreements and Dominant Firms 2022
Chapter Germany, August 2022,
together with
Dr. Reinhard Siegert
Grundzüge des Wettbewerbs- und Kartellrechts
Stober/Paschke (Hrsg.), Deutsches und Internationales Wirtschaftsrecht, 4th edition 2022,
together with
Dr. Søren Pietzcker, LL.M. (University of Illinois)
, Dr. Verena Hoene, LL.M. (University of Washington)
Neue Vertikal-GVO und -Leitlinien: Was bleibt, was ändert sich?
Update Antitrust, May 31 2022,
together with
Dr. Reinhard Siegert
2021
Merger Control Country Comparative Guide (Germany)
ARC Digitalisation Act
Update Antitrust January 2021,
together with
Dr. Reinhard Siegert
, Dr. Rainer Velte
, Dr. Frederik Wiemer
, Beatrice Stange, LL.M. (King’s College London)
, Anita Bohn, LL.M. (University of London)
, Dr. Ruth Jungkind (nee Schneider)
2020
Prüffristen für Fusionskontrolle sollen vorübergehend verlängert werden
Sondernewsletter Corona-Virus
2017
Kapitel "Germany"
in: Dennis Campbell (Editor), International Franchising, 2nd edition, loose sheets, review 12/2017
Die Zulässigkeit von Nettingklauseln in EFET-Rahmenverträgen gem. § 104 InsO nF
Neue Zeitschrift für Insolvenz- und Sanierungsrecht, December 20, 2017
Overview of the main reforms under the 9th ARC Amendment
Update Kartellrecht, June 9, 2017
Weitere Erleichterungen bei der Durchsetzung privater Schadensersatzklagen durch die 9. GWB-Novelle
Update Kartellrecht, March 14, 2017
Ab 1. Februar 2017 neue Informationspflichten für Unternehmer nach dem Verbraucherstreitbeilegungsgesetz (VSBG)
Update Vertriebsrecht, January 2017
2016
Wettbewerbs- und Kartellrecht
Stober/Paschke (Hrsg.), Deutsches und Internationales Wirtschaftsrecht, 3rd edition 2016
Lectures
2024
International Competition Lawyers Network Conference, Wien, Sustainability, the Environment and Competition Law
Panelist, September 12-13, 2024
2022
International Competition Lawyers Network Conference, London, Competition Law in the Courts – New Developments
Panelist, October 27, 2022
2021
Regular block lectures on German and European antitrust law
in St. Petersburg as part of the post-graduate programme on International Business Law, organized by the University of Hamburg, the Chamber of Commerce Hamburg, the National University of St. Petersburg and the DAAD, since 2006