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Portrait of Cosima Rechteren

Cosima Gräfin von Rechteren

Principal Counsel

CMS Hasche Sigle
Theodor-Heuss-Straße 29
70174 Stuttgart
Languages German, English, French

With a focus on complex energy disputes, Cosima Gräfin von Rechteren advises and represents German and international clients in proceedings before German courts as well as in national and international arbitration proceedings. She further specialises in general commercial litigation, frequently of an international nature.

Cosima started her legal career in 2008 at Allen & Overy in Frankfurt before moving on to Bär & Karrer AG, an internationally operating law firm in Zürich, where she worked from 2010 to 2016. She joined CMS in 2017 as a counsel.

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Rising star for Energy

Legal 500 EMEA, 2021

Relevant experience

  • Representation of PRISMA European Capacity Platform in proceedings against ACER (Agency for the Cooperation of Energy Regulators) before the Board of Appeal of ACER re ACER's decision on the gas booking platform to be used on the German-Polish border
  • Representing EnBW Energie Baden-Württemberg AG (publicly traded electric utilities company) in the dispute regarding the ownership of high voltage and high pressure grids in Stuttgart
  • Representing EnBW in the dispute with the City of Stuttgart about ownership and value of the water network in Stuttgart
  • Representing a German energy supplier in a post-M&A dispute before the District Court of Zurich, Switzerland
  • Representing a major Austrian bank before the Federal Supreme Court of Switzerland against an action for payment (volume: EUR 250 million)
  • Advising a major Swiss pension fund on asserting claims for damages against a former consultant (volume: CHF 500 million)
  • Representing a major German bank in disputes regarding investor rights
  • Representing a major German bank in a high-volume claim brought forward by an insolvency administrator in the context of equity compensation law matters

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Memberships & Roles

  • International Association of Young Lawyers (AIJA)
  • German-Swiss Lawyers‘ Association (DSJV)
  • ASA below 40
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  • „Public Benefit – Swiss charitable foundations can play a valuable role in both philantrophic activities and estate planning“, Private Client Adviser, November 2012, Volume 18, Issue 1
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Lectures list

  • „Asset Protection – How to structure assets in an anonymous way, whilst meeting the international transparency requirements“, AIJA Annual Congress 2016, 23.-27. August 2016, München
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  • 2015: Executive Diploma in Law and Management, University of St. Gallen (Switzerland), Executive School of Management, Technology and Law
  • 2014: Admitted as a Swiss lawyer
  • 2008: Second state examination in law
  • 2006 - 2008: Trainee lawyer at Darmstadt Regional Court
  • 2004: First state examination in law
  • 1999 - 2004: Law studies at Freie Universität Berlin and Humboldt-Universität zu Berlin
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PRISMA suc­ceeds with CMS be­fore ACER­'s Board of Ap­peal
Stut­tgart – On 14 Feb­ru­ary 2019 and on ap­peal of ca­pa­city book­ing plat­form op­er­at­or PRISMA European Ca­pa­city Plat­form GmbH (PRISMA), the Board of Ap­peal of the Agency for the Co­oper­a­tion of En­ergy...
CMS ad­vises At­las Copco on ac­quis­i­tion of cryo­gen­ic busi­ness of Brooks...
Stut­tgart – At­las Copco AB, a lead­ing pro­vider of sus­tain­able pro­ductiv­ity solu­tions with rev­en­ues of EUR 9 bil­lion in 2017, has agreed to ac­quire the cryo­gen­ic busi­ness of Brooks Auto­ma­tion, Inc...
US en­ter­tain­ment group Ad­vance Pub­lic­a­tions ad­vised by in­ter­na­tion­al CMS...
Ber­lin – US en­ter­tain­ment group Ad­vance Pub­lic­a­tions, Inc. (Ad­vance) has ac­quired 100% of the shares in mu­sic­al group Stage En­ter­tain­ment from private equity in­vestor CVC Cap­it­al Part­ners (CVC) and...