Otto von Gruben advises German and international clients on complex M&A and real estate transactions, often in a cross-border context.

Drawing on his breadth of experience across a full spectrum of transactional matters, Mr. von Gruben serves a variety of public and private companies, including strategic investors, private equity, and sovereign wealth funds. His work covers a range of industries, with a particular focus on the real estate, automotive, and healthcare sectors. 

Mr. von Gruben's practice includes:

  • Corporate real estate and real estate private equity transactions
  • Mergers and acquisitions (M&A) and private equity transactions
  • Joint ventures 
  • Distressed transactions

Mr. von Gruben combines a results-driven sensibility and a knowledge of the key market players to complete both German and cross-border deals efficiently. In particular, he frequently navigates clients’ most intricate transactions involving novel structures and complex international considerations.

Mr. von Gruben’s experience includes advising:

M&A Transactions

  • Aliaxis 
    • On the sale of its ceramics business
    • On the sale of Rheinhütte Pumps to ITT Inc.
  • First Sentier Investors on the sale of Ferngas Group to VKB
  • The founders of KMK Kinderzimmer Group on the sale of the majority shareholding to Franz Haniel & Cie
  • Founder and sole shareholder of Prime Capital AG on the sale of a majority stake to top management
  • Partners Group on the acquisition of a majority stake in Cloudflight
  • Rhön-Klinikum on its €3.07 billion sale of major assets (including 40 hospitals) to Dax-listed Fresenius SE 
  • SERgroup on the sale of a majority stake to The Carlyle Group 
  • Summit Partners on the sale of RadioOnkologieNetzwerk (RON) to Medipass
  • Swiss Life Asset Management AG and Gelsenwasser AG on the acquisition of Infrareal
  • TOTAL on the sale of its shares in the joint venture Großtanklager-Ölhafen Rostock to EUROPORTS
  • ZF Friedrichshafen on the sale of its global Body Control Systems business to Luxshare

Real Estate

  • Angelo, Gordon on various acquisitions (residential, industrial, retail) 
  • Apollo on:
    • The €1 billion investment in the Northern Portfolio (residential real estate portfolio controlled by Vonovia)
    • The €1 billion investment in the Suedewo Portfolio (residential real estate portfolio controlled by Vonovia))
  • Azure Hotels regarding acquisitions and disposals of several hotels of the Azure Group (Radisson Blu Hotel in Hamburg-Dammtor; Indigo Hotels Hardenbergstraße, and Alexanderplatz in Berlin) 
  • Corpus Sireo on the sale of a residential real estate portfolio to DWS Real Estate (formerly Deutsche Asset & Wealth Management, RREEF) 
  • Digital Realty on:
    • A US$7 billion joint venture with Blackstone to develop hyperscale data centers
    • Its US$8.4 billion acquisition of Interxion
  • DWS Real Estate on several real estate transactions
  • Ludger Inholte Projektentwicklung (LIP) and ABG Real Estate on the sale of the project development at Humboldthafen in Berlin by way of a forward share deal to Zurich
  • Morgan Stanley Real Estate Fund on the acquisition and financing of several large real estate portfolios and shopping centers, including the Christie portfolio and the Rhein Ruhr shopping center 
  • Peugeot Invest on a minority shareholding of 5% in SIGNA Development Selection AG
  • Proprium Capital Partners on joint venture, property, and asset management agreements, as well as acquisition financing of two large residential portfolios in Germany

Bar Qualification

  • Rechtsanwalt (Germany)


  • LL.M., University of Pennsylvania Law School, 2011
  • Second German State Exam, Higher Regional Court, Celle, 2010
  • First German State Exam, University of Muenster, 2008

Languages Spoken

  • German
  • English