Marleen Krueger focuses her broad practice on international commercial and investment arbitration matters across a range of industries and jurisdictions. She has acted as counsel and arbitrator in all types of commercial and investment treaty arbitrations seated in civil law and common law jurisdictions worldwide, including Germany, England, France, New York, Peru, South Korea, Japan, and Switzerland. She has represented both private sector and government clients in relation to a variety of sectors, including the oil and gas, energy, pharmaceutical, construction, intellectual property, technology and automobile industries. Her experience includes institutional arbitrations conducted under a variety of arbitral rules, including ICC, LCIA, DIS, SIAC, and UNCITRAL. Ms. Krueger is fluent in both English and German and has participated in arbitrations conducted in both languages. 

Ms. Krueger regularly gives lectures on international arbitration at the University of Würzburg, SOAS University of London and Pepperdine University. She is an Assistant Editor for the Journal of International Arbitration, and also publishes and speaks regularly on issues of international arbitration.


  • Representing a Middle Eastern state entity in a consolidated LCIA dispute against a UK-domiciled international energy company relating to the termination of two Production Sharing Contracts in the Middle Eastern state of our client. Seated in London, subject to English law.
  • Representing a global biotechnology company in an ICC arbitration arising out of a joint venture with a Korean company.
  • Representing the German branch of a global oil and gas service company in two DIS arbitrations and setting aside proceedings against an oil and gas storage company relating to alleged defects in subsurface equipment. Seated in Hanover, subject to German law. The dispute was settled on terms favorable to our client.
  • Representing a multinational plant and equipment supplier for the energy and construction industry in an ICC arbitration relating to a delayed hydro-power project in Peru. Seated in Lima, subject to Peruvian law. The tribunal issued an award in favor of our client.
  • Representing a South-East Asian state-owned oil and gas company in an ICC arbitration against another South-East Asian oil and gas company relating to taxation and abandonment obligations arising from a Production Sharing Contract.


  • Recognized in Legal Business “The Next Generation of Arbitration 2022”

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  • Education

    • Second State Exam, Court of Berlin, 2014

    • First State Exam, Humboldt University, Berlin, 2011

    • Foreign Law Studies, English Law, Humboldt University, Berlin, 2009

  • Admissions

    • Germany

    • England and Wales, Registered European Lawyer

  • Languages

    • English

    • German



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