Sebastian Walczak

Sebastian Walczak

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Sebastian Walczak
+49 (0)89 26202 4213

Sebastian Walczak is a counsel in the firm’s Private Equity group. He focuses on national and international private equity transactions, mergers and acquisitions and joint ventures, as well as general corporate matters representing private equity funds, asset managers, strategic investors and domestic and international corporate clients with regard to leveraged buy-outs, management buy-outs, management incentive plans, and joint ventures.


Sebastian’s recent representative experience includes advising:

  • Arma Partners, a UK corporate advisory firm specialising in digital finance, on its acquisition by Mediobanca, an Italian bank
  • Imprivata Inc. on the acquisition of OGiTiX Software AG
  • Mayfair Equity Partners on the investment in EGYM, a leading global fitness technology developer
  • Left Lane Capital regarding its investment in Choco Communications
  • Summit Partners, inter alia, on
    • the sale of its participation in German-based Elatec group, a leading international developer and supplier of secure access solutions, to SGT German Private Equity
    • its investment in Energy Aspects, a provider of energy data analysis and market intelligence
    • the sale of its participation in Workaround GmbH (ProGlove), a Munich-based Industrial Internet of Things ("IoT") company, to Nordic Capital
    • the sale of its participation in Appway, a provider of business process software solutions for the financial services industry, to FNZ
    • its US$68 million growth equity investment in online language school Lingoda GmbH*
    • the sale of a minority participation in Signavio GmbH, a leader in the enterprise business process intelligence and process management space, to SAP*
    • its €50 million investment in Solactive AG, a technology-enabled provider of indices and index solutions to the global financial services industry*
    • its investment in Appway AG, a provider of business process software solutions for the financial services industry*
    • its investment in ProGlove, a leading provider of smart, wearable and lightweight barcode scanners*
    • the sale of shares in Signavio GmbH, a provider of business transformation solutions, to Apax Digital and DTCP*
    • its acquisition of a majority stake in Elatec Group, one of the world's leading suppliers of multi-standard RFID readers, from DPE (Deutsche Private Equity)*
    • its acquisition of a participation in Market Logic Software AG, a leading provider of enterprise SaaS marketing information systems*
  • Sun Capital Partners, inter alia, on the acquisition of ESIM Chemicals GmbH*
  • Marlin Management Company, LLC on the acquisition of a majority stake in COYO GmbH*
  • KKR, inter alia, on its sale of shares in OptimalPlus to National Instruments*
  • Bain Capital on its add-on acquisition of Astral SteriTech Private Limited, a leading pharmaceutical manufacturer*
  • ARDIAN France S.A. on its acquisition of a majority stake in the GBA Group*
  • Water Street Healthcare Partners, inter alia, on
    • the acquisition of Interlock Group*
    • the add-on acquisition of all shares in lnsitumed GmbH*
  • RTI Surgical on its acquisition of Paradigm Spine, an international leading provider of non-fusion spinal implant technology*
  • Gilde Buy Out Partners in its investment in Caseking, a leading supplier of high-performance PC gaming equipment and peripherals*
  • Intermediate Capital Group on the acquisition of an interest in Minimax Viking Group*
  • Kimmeridge Energy in connection with its disposal of its German exploration and production business*

*Denotes experience prior to joining Goodwin.

Professional Activities

Sebastian is a member of the German-Polish Lawyers Association.

Professional Experience

Prior to joining Goodwin, Sebastian was most recently a senior associate at Sidley. Previous to Sidley, he was an associate in the corporate practice of other international law firms.



Second State Exam2009

Higher Regional Court of Berlin


University of East Anglia

(with distinction)

First State Exam2006

University of Münster



  • Germany


Sebastian’s recent publications include:

  • Co-Author, “Legaltech - The Digital (R)Evolution,” FYB Financial YearBook, 2017