Thomas Lennarz CMS Hasche Sigle

Dr Thomas Lennarz is an arbitration and litigation partner in CMS's international dispute resolution group, one of the leading global arbitration practices (GAR 30). He works and lives in Stuttgart, Germany.

Thomas advises clients in proceedings before German courts and in international arbitration proceedings and has also gained extensive experience in all other forms of dispute resolution.

His main areas of interest are

• corporate disputes (including post M&A),
• general commercial law matters,
• disputes related to energy law and climate change.

In addition to his counsel work, he is frequently appointed as arbitrator. He has been appointed on numerous occasions by arbitral institutions (ICC and DIS) as well as parties and co-arbitrators.

For his work, Who's Who Legal rewarded him as Future Leader Arbitration in 2019, 2018 and 2017. In 2016 he was named Rising Star in Commercial Arbitration by Expert Guides. He is regularly praised by peers and clients for his legal excellence and successful work. JUVE, Germany's leading publication for legal services in Germany, recognises him as frequently recommended in corporate disputes.

Thomas regularly speaks at international conferences (most recently at the IBA 2019 Annual Litigation Forum in Berlin and at the 2019 CIArb European Branch Conference in Prague.) He publishes in the field of international law and arbitration (e.g. "Climate Change Arbitration", C.H. Beck (2020); Arbitration in Germany, Sweet & Maxwell (2019)). He has been quoted as an expert on questions of international arbitration and climate change disputes in various international newspapers (Financial Times, Legal Tribune, Handelsblatt, etc.)

Thomas joined CMS as a German Rechtsanwalt in 2004. In 2007, he qualified as a commercial mediator (Chamber of Commerce Munich). In 2008 he obtained the International Commercial Arbitration Diploma from the Chartered Institute of Arbitrators (Oxford). In 2009, he worked in the legal department of Linde AG in Sydney before being made a CMS partner in 2012. Alongside his legal practice, Thomas teaches Civil and Corporate Law at the University of Heidelberg.

He is the Chairman of the CIArb European Branch's German Chapter and was the Chair of the DIS40 in Stuttgart.