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, including as president and sole arbitrator, in domestic and international arbitrations under various rules (including ICC, DIS, SCC, KCAB, CEAC, RUCIP, Hamburg Chamber of Commerce, ad hoc). He has handled construction (including FIDIC), 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. 


Before founding MANNER SPANGENBERG, Simon Manner was Senior Legal Counsel with the Nordex Group and globally responsible for handling the company’s disputes and negotiated numerous construction and procurement contracts. Prior to his in-house role, he worked for over five years as an attorney in Hamburg. Simon Manner studied law at the Universities of Freiburg and Basel (Doctor of Laws, summa cum laude).

Simon Manner is recognized in leading rankings: “Simon Manner is highlighted for his ‘sharp legal mind’ and ‘unique blend of in-house technical expertise’. He is described as ‘an excellent arbitrator known for his experience in infrastructure cases’” (Who’s Who Legal Global Leader Arbitration 2020); “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 frequently acts s 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 is ‘a stellar lawyer’ who draws widespread praise for his ‘great legal mind’ and ‘no-nonsense approach’” (Who’s Who Legal Arbitration Future Leader 2019); “Simon Manner is a first-class practitioner, highly regarded for his excellent work as both arbitrator and counsel in complex commercial disputes” (Who’s Who Legal Arbitration Future Leader 2018).


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. He regularly publishes and lectures on international contract law and dispute resolution. His working languages are English and German.