Spieker & Jaeger (Dortmund)

Thomas Thiede

Spieker & Jaeger (Dortmund)

Dr. Thomas Thiede, LL.B., LL.M. is an attorney-at-law (‘Rechtsanwalt’) and partner at Spieker & Jager in Dortmund, Germany. He is also a university lecturer at the Karl-Franzens University in Graz, Austria, as well as fellow of the European Centre of Tort and Insurance Law (ECTIL) and the European Law Institute (ELI). He specializes in advising and representing clients in German and European competition law, as well as in commercial and corporate law. His practice focuses on advising companies in antitrust fine proceedings, defending and asserting antitrust claims for damages, drafting contracts and distribution systems in compliance with competition law, and providing general advice. Another focus of his work as a lawyer is on litigation and out-of-court advice in commercial and corporate law, in particular with regard to corporate transactions and shareholder court proceedings. Due to his many years of experience abroad, he is regularly consulted on cross-border issues and the drafting of English-language contracts. He is the author of numerous books and articles, in particular on antitrust and international private and procedural law, and is also a contributing author on the Soergel Commentary on the German Civil Code.



837 Bulletin

Thomas Thiede The Higher Regional Court of Dusseldorf stays the proceedings against a social media company and announces a referral to the EU Court of Justice on questions of data protection law (Facebook)


Of Pricing Guns, Social Networks and GDPR: The Düsseldorf Higher Regional Courts submits Facebook Case to the CJEU* On 24 March 2021 the Higher Regional Court (‘Oberlandesgericht’) of Düsseldorf put yet another twist to the ‘Facebook Saga’. Although the formal written submission is not yet (...)

Thomas Thiede The German District Court of Dortmund implements the Kühnen approach to private enforcement in practice and estimates the cartel overcharge to be at least 15% for a rail sector cartel (Rail Cartel)


The esteemed (former) chief judge of the First Senate of the Düsseldorf Higher Regional Court (‘Oberlandesgericht’), Jürgen Kühnen, in 2019 provided ample arguments for an estimation of damages in Private Law. The District Court (‘Landgericht’) of Dortmund implemented Kühnen’s approach in (...)

1459 Review

Thomas Thiede Austria/Germany: Recent developments in private enforcement


In the following select points from the Austrian and German legal systems will be presented with relevant case law. In particular, the report will identify and discuss a number of hotly debated topics and the most recent developments, including defendants’ “group liability,” collective (...)


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