Deals & Cases

Schellenberg Wittmer advised Quorum Cyber in its acquisition of Ontinue

28.09.2026

Schellenberg Wittmer advised Quorum Cyber, a leading Microsoft-focused cybersecurity services provider, in its acquisition of Zurich-based Ontinue, a managed extended detection and response (MXDR) provider.

The combination will bring together two Microsoft-focused cybersecurity businesses and is expected to create a leading Microsoft-first MXDR offering, with an expanded presence across North America, the UK and the DACH region. Ontinue provides managed security services through its Agentic Security Operations Center (SOC), leveraging AI to investigate and respond to cyber threats.

The Schellenberg Wittmer team is led by Christoph Vonlanthen (Corporate/M&A) and includes Oliver Triebold, Lukaz Samb, Alexander Zundel, Florian Angstmann and Nanina Lätsch (Corporate/M&A), Roland Wild and Tabea Bänteli (Taxation), Sara Rousselle-Ruffieux, Petra Spring, Elio Correia Fonseca and Jacqueline Leisi (Employment), Stéphanie Chuffart-Finsterwald, Annapoorni Sitaraman and Nathan Matantu (IP/IT/Data Protection) and Joseph Calef and Klaudia Bibaj (Real estate).

 

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