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.
Areas of Practice
Domaines D’Expertise





Mr. Walczak’s recent representative experience includes advising:

  • Summit Partners, inter alia, on
    • 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 Experience
Prior to joining Goodwin, Mr. Walczak was most recently a senior associate at Sidley. Previous to Sidley, he was an associate in the corporate practice of other international law firms.
Professional Activities
Mr. Walczak is a member of the German-Polish Lawyers Association.

In The News









Second State Exam, 2009
Higher Regional Court of Berlin
LL.M., 2007
University of East Anglia
(with distinction)
First State Exam, 2006
University of Münster








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Our clients rely on us for world-class advisory services, counsel on complex transactional work and high-stakes litigation. Specializing in matters involving the financial, life sciences, private equity, real estate, and technology industries, we use a collaborative, cross-disciplinary approach to resolve our clients’ most challenging issues. To find out more, please contact us.


Nos équipes interviennent aux côtés de nos clients, industriels, fonds d’investissement, startups, institutions financières et dirigeants, dans le cadre de transactions et de contentieux complexes, et apportent des conseils de tout premier plan dans les secteurs financiers, des Sciences de la Vie, du Private Equity, de l’immobilier et des technologies. Nous traitons les dossiers juridiques de manière intègre, ingénieuse, souple et audacieuse pour répondre efficacement aux enjeux propres à chacun de nos clients, quels que soient la taille de l’opération et le secteur d’activité. Pour en savoir plus, contactez-nous.

Unsere Kunden verlassen sich auf unsere erstklassige Beratung, vor allem im Hinblick auf komplexe Transaktionen und High-Stakes-Prozesse. Spezialisiert auf Angelegenheiten der Finanz-, Life-Sciences-, Private-Equity-, Immobilien-und Technologie-Branchen, verwenden wir einen kooperativen und interdisziplinären Ansatz, um Fragen unserer Kunden auch in extremen Spezialsituationen einer Lösung zuzuführen. Sie wollen mehr erfahren? Kontaktieren Sie uns gerne.

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