Jan Ortgies, LLM
Dutch German Arbitration, German Arbitrator Dutch qualified but not Dutch Lawyer, Schiedsrichter mit internationalen Zulassungen, Dispute Resolution

Arbitrator. Tribunal Assistant. Legal Advisor.
Dutch Law - German Law - New York Law - International Law
Jan Ortgies
Jan Ortgies
Jan Ortgies, a national of Germany, is an award winning lawyer with over 15 years of experience in international arbitration and litigation as arbitrator, Tribunal Assistant/Secretary, and as counsel in magic circle law firms (e.g. at ICC, IUSCT, ICSID, PCA, LCIA).
A Stanford Law graduate and Alumnus of the German National Merit Foundation, he is qualified to practice Dutch, German, and New York Law and has a strong background in public international law - making him a true international lawyer and arbitrator.
Direct any inquiries to info@janortgies.com
Expertise and Background
Stanford University Law School
Master of Laws (LLM) in International Economic Law, Business and Policy
University of Amsterdam
Bachelor of Law (LLB)
Master of Laws (LLM) in International and European Law
Tribunal
Tribunal Secretary / Legal Advisor at
IUSCT, ICSID, PCA, ICC, ECT, NAFTA, UNCITRAL, NAI, Raad voor arbitrage van de bouw
Experience
Head of Legal at
Register of Damage Caused by the Aggression of the Russian Federation Against Ukraine
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Legal Advisor at the Iran-United States Claims Tribunal
Lawyer in international arbitration at leading Magic Circle firms (Allen & Overy LLP Amsterdam; Clifford Chance Europe LLP Paris)
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Extensive tribunal-side experience as arbitrator and tribunal assistant under major institutional and ad hoc rules, including International Chamber of Commerce (ICC), International Centre for Settlement of Investment Disputes, Permanent Court of Arbitration, London Court of International Arbitration, Energy Charter Treaty, UNCITRAL, Netherlands Arbitration Institute, and Raad van Arbitrage voor de Bouw
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Clerkships and fellowships include
- International Court of Justice
- German Federal Foreign Office (Public International Law Division)​​​​
Exemplary Arbitration Cases
Investor-State cases incl. under the ECT and involving objections on the basis of the CJEU's Achmea and Komstroy Judgments
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A multi-billion dollar commercial commodities case before an LCIA Tribunal, incl. interim measures proceedings
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Sole Arbitrator in an ICC construction dispute between a Dutch and a Monegasque company, involving the application of General Conditions for Metal Working Industry (metaalunievoorwaarden)
Sole Arbitrator in an ICC dispute concerning commodities, machinery, and agriculture between a Dutch and a Belgian company, governed by the CISG
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A shareholder dispute before ICC Tribunal and national courts
Legal Qualifications
Qualified to practice law in three jurisdictions
Dutch law (2011) (Advocaat 2012-2017)
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German Law (2020)
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New York Law (2018) (Attorney at law, Esq.)
Education
LLM in International Economic Law, Business, and Policy - Stanford Law School
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LLM in International and European Law - University of Amsterdam
Awards
Best Young Professional Law of The Netherlands 2015
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Winner Litigation Competition of the Amsterdam Order of Lawyers 2013 (Winnaar Pleitwedstrijden Amsterdam 2013)
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Third in National Litigation Competition of the Dutch Order of Lawyers (Derde Landelijke Pleitwedstrijden)
Publications
Publications include:
Bruno Simma and Jan Ortgies 'The Reasoned Award' in The Award in International Investment Arbitration by Katia Fach Gómez and Catharine Titi (Oxford University Press 2024)
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Bruno Simma and Jan Ortgies 'Ad Hoc Judge' in Max Planck Encyclopedia of International Procedural Law (Oxford University Press 2019)
Bruno Simma and Jan Ortgies 'Deliberation and Drafting: International Court of Justice (ICJ)' in Max Planck Encyclopedia of International Procedural Law (Oxford University Press 2019)
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Bruno Simma and Jan Ortgies, 'Six Considerations Before You Begin Interim Measures Proceedings in International Arbitration' in Christoph Benicke and Stephan Huber (eds) National, International, Transnational: Harmonischer Dreiklang im Recht Festschrift für Herbert Kronke (Gieseking 2020) 1579
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Bruno Simma and Jan Ortgies 'The Iran United States Tribunal' in Research Handbook on International Claims Commissions edited by
Chiara Giorgetti, Patrick W. Pearsall, Hélène Ruiz-Fabri (Elgar 2023) 75
Languages & Nationality
German
English
Dutch
Spanish
French
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German National
Pragmatic. Thorough. Creative. Multilingual.
