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Dr. Simon C. Manner

An der Alster 64

20099 Hamburg

T +49 40 999 99 47 40

F +49 40 999 99 47 41

Simon Manner specialises in dispute resolution, litigation and arbitration. He assists companies in navigating high-stakes disputes as well as in the drafting, negotiation and execution of complex contracts. 


Simon Manner has significant experience as counsel and as arbitrator (> 25 arbitrations as president, sole arbitrator and co-arbitrator) in domestic and international arbitrations under various rules (including ICC, DIS, SCC, KCAB, CEAC, GMAA, RUCIP, Hamburg Chamber of Commerce and Ad hoc) and laws (including Austrian, English, French, German, Indonesian, Italian, Korean, Russian, Spanish, Swedish and Swiss law). He has handled construction, machinery, energy (gas and renewables), transportation, infrastructure, distribution, intellectual property, information technology, corporate law, shareholder, post-M&A and a variety of contract, trade and other commercial disputes. 

Simon Manner is recognized in leading rankings, including Who’s Who Legal, Handelsblatt/Best Lawyers (“Germany’s best lawyers”) and JUVE: “He brings a unique blend of in-house technical expertise to provide its clients with the best service possible”; “He is outstanding as an arbitrator and is known for his experience in infrastructure cases”; “He is a very smart lawyer, with industry knowledge in wind turbines and EPC contracting (Who’s Who Legal Global Leader Arbitration 2021); “Simon Manner is an ‘impressive arbitrator’ who is ‘commercially minded’ and deeply experienced in high-stakes disputes” (Who’s Who Legal National Leader Germany – Arbitration 2021); “Simon Manner is a ‘very smart’ lawyer who ranks highly for his impressive handling of arbitration proceedings relating to energy, M&A and construction disputes” (Who’s Who Legal National Leader Germany – Arbitration 2020); “Simon Manner is highlighted for his ‘sharp legal mind’ and ‘unique blend of in-house technical expertise’” (Who’s Who Legal Arbitration 2020); “confident, experienced, empathic” (JUVE Handbook 2020/2021); “Simon Manner frequently acts as both counsel and arbitrator in high-stakes disputes relating to contract, energy and infrastructure matters, with sources noting that he is ‘definitely a person to watch’” (Who’s Who Legal Germany Arbitration 2019).


Simon Manner combines many years of experience as in-house counsel in a globally operating energy company with his experience as an attorney in dispute resolution law firms. Before founding MANNER SPANGENBERG, he was Senior Legal Counsel with the Nordex Group, where he was globally responsible for handling the company’s disputes, negotiated numerous high-volume construction contracts (often FIDIC-based) and procurement contracts under various laws and headed a team of several lawyers. Prior to his in-house role, he worked for over five years as an attorney with Hanefeld Rechtsanwälte (2011-2013) and Friedrich Korch Hanefeld (2008-2011) in Hamburg.

Simon Manner was a Research Assistant to Prof. Dr. Ingeborg Schwenzer, LL.M. (University of Basel, 2005-2007) and Prof. Dr. Andreas Voßkuhle (University of Freiburg, 2003-2004). He holds law degrees from Germany (Freiburg, Second State Exam, 2005; First State Exam, 2003) and Switzerland (Doctor of Laws, University of Basel, 2009, summa cum laude).

Simon Manner is a member of the Editorial Board of the Journal of International Arbitration, a former co-chair of DIS40, and participated in the committee for the revision of the DIS Arbitration Rules. His working languages are English and German. 

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