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Clifford Chance

Clifford Chance
Katrin Schallenberg

Katrin Schallenberg


Katrin Schallenberg

Katrin Schallenberg's practice focuses on European and French competition law. She is regularly assisting clients in large antitrust investigations by the EU Commission and French competition authority, both for abuse of dominance and cartel infringements.

Katrin splits her time between Paris and Brussels and has been involved in high-profile investigations in the banking, industrial, energy and IT sectors. She also has extensive experience in handling complex merger control cases.

  • Advised a party in the EU Commission investigation into practices relating to the market for credit default swaps
  • Advised Shell on the merger control aspects of Shell's acquisition of Repsol's non-US LNG business
  • Advised Shell in the context of the EU Commission's phase II merger investigation into the sale of the Harburg refinery assets to Nynas
  • Advised a party in the French competition authorities procedure for an alleged abuse of dominance in the technology sector
  • Advised US media group with respect to acquisition of major competitor involving filings in various major jurisdictions
  • Advised Saint-Gobain in the context of EU and consequently French notification of its acquisition of a competing distribution business (requiring divestments)
  • Advise Reuters in the context of the Phase II merger investigation into its merger with Thomson

News and client work

View all news and client work featuring Katrin Schallenberg

Contact details

2023 Predictions on the Big Tech Focus of the Antitrust Agencies from Katrin Schallenberg

Katrin Schallenberg, Partner, discusses her top predictions for the big tech focus of the antitrust agencies in 2023. Global tech companies will have to navigate an increasingly complex environment around the world which will require them to spend more resources engaging with the regulators across jurisdictions. EU, UK, US and China are some of the regions where antitrust agencies will be most active but other countries are also developing new regulations. Katrin expects to see more cooperation between authorities in different countries beyond 2023.

Career and qualifications

  • University of Vienna Law School (Master in Law) 2001
  • Georgetown University Law Center (LLM) 2002
  • Admitted as an Attorney-at-Law in New York 2003
  • Admitted as an avocat in Paris 2005
  • Joined Clifford Chance 2005
  • Ecole Nationale d'Administration (Cycle des Hautes Etudes Européennes)2015
  • Partner since 2017

Awards and citations

  • Katrin Schallenberg is ranked as one of the 'Leading Individuals' for the practice.
    Legal 500 EMEA 2023, EU, Competition and Distribution - France 
  • Katrin Schallenberg (Band 4) is noted for her expertise in antitrust matters, including assisting with abuse of dominance investigations and market inquiries. She is equally well placed to handle the merger control and foreign direct investment aspects of transactions.
    "Her key qualities are her ambitious vision, ability to understand the major issues, concise summaries and speed of understanding."
    "Katrin Schallenberg is pragmatic, reactive and an expert in competition law. She is always looking for innovative ways to address the large variety of topics we have to cover and is a pleasure to work with."
    "Katrin Schallenberg has a really good relationship with clients, is very responsive and gives pragmatic advice."
    "She will not spare energy to fight for her client's best interests and will give macro-level advice."
    Chambers Europe 2023, EU, Competition/European Law - France
  • Katrin Schallenberg is ranked as one of the 'Next Generation Partners' for the practice.
    Legal 500 2022, EU, Competition and Distribution - France
  • Katrin Schallenberg is noted for her expertise in antitrust, including assisting with abuse of dominance, as well as merger control. One client highlights: "Katrin is a dynamic, talented and business-oriented competition law partner." (Ranked Band 4)
    Chambers Europe 2022, Competition/European Law - France
  • Katrin Schallenberg is ranked as "Next Generation Partner".
    Legal 500 2021, UE, Competition and Distribution - France
  • Katrin Schallenberg is noted for her expertise in antitrust, including assisting with abuse of dominance, as well as merger control. She is praised for being "technically impeccable, responsive and succinct."
    Chambers Europe 2021, Competition/European Law - France
  • Katrin Schallenberg is ranked as "Next Generation Partner."
    Legal 500 2020, UE, Competition and Distribution - France
  • Impressed clients say Katrin Schallenberg "puts herself in our position and is very nice to work with." She advises clients on merger clearance and antitrust investigations. According to sources, Schallenberg is "a true business partner, smart and pragmatic."
    Chambers Europe 2020, Competition/European Law - France
  • "Clifford Chance's antitrust practice combines national and European expertise to cover the full gamut of competition matters through the experience of Katrin Schallenberg and David Tayar. The pair jointly head the practice, supported by of counsel Michel Petite. As well as overseeing Europcar's acquisition of Goldcar, the group recently handled Axel Springer's sale of 78.4% of the Aufeminin group to TF1. Schallenberg is currently representing Arkema in a claim against Honeywell on the grounds of European competition law, seeking a worldwide licence to use one of its products; Tayar is assisting Carrefour with its strategic alliance with Tesco covering the joint purchase of own-brand products and the negotiation of services with large international suppliers. Senior associate Emily Xueref-Poviac is also a key contact and is part of the team advising Oracle on a very recent FCA investigation."
    Legal 500 EMEA 2019, EU Competition & Distribution - France
  • "Clifford Chance is assisting many leading French and international corporations with the establishment of anti-corruption programmes, including high-profile names in the pharmaceutical, aviation and defence sectors. The 16-lawyer team is also advising several clients on audits by the new French anti-corruption agency, Agence française anticorruption (AFA), and on conducting internal investigations in connection with or independently from government-led investigations. It also offers antitrust compliance advice. Thomas Baudesson, newly promoted partner Charles-Henri Boeringer and Katrin Schallenberg are recommended."
    Legal 500 EMEA 2019, Compliance - France
  • Katrin Schallenberg assists clients with a variety of antitrust issues across the automotive, publishing and IT spaces. She is identified by sources as an "excellent lawyer with international experience which is very useful and gives a broader perspective."
    Chambers Europe 2019, Competition/European Law - France
  • "Clifford Chance managed to balance the departure of former practice head Patrick Hubert and three of his associates to Orrick Rambaud Martel with the arrival of the ‘exceptional’ David Tayar, who ‘stands well above the rest of the pack’ and joined from Willkie Farr & Gallagher LLP; additionally, Katrin Schallenberg was promoted to the partnership. Along with numerous high-value merger control cases in the pharmaceutical and car rental sectors, the group is representing clients such as Teva, Ingram Micro and Volkswagen in antitrust investigations. Of counsel Michel Petite successfully obtained clearance with remedies in phase two proceedings before the European Commission on behalf of Airbus Safran Launchers with regards to its acquisition of Arianespace and Marie Pacaux is also a key contact."
    Legal 500 EMEA 2018, EU Competition & Distribution - France
  • "Clifford Chance advises many leading French and international companies on the setting up of Sapin II anti-corruption programmes. The practice is also assisting several high-profile corporations with internal investigations concerning market abuse, corruption and EU law issues, and advises large companies and financial institutions on Iranian sanctions matters. Pfizer, Pernod Ricard and Club Med are clients. Thomas Baudesson, Katrin Schallenberg and counsel Charles-Henri Boeringer are the key contacts."
    Legal 500 EMEA 2018, Compliance - France