Deals & Cases | 8 octobre 2026

Affidea acquires Zentrum für Integrative Onkologie (ZIO)

Zentrum für Integrative Onkologie ("ZIO"), the leading network of outpatient oncology centers combining conventional cancer treatments with evidence-based complementary therapies to support both clinical outcomes and patients' quality of life, has been acquired by Affidea, one of Europe's largest networks of community-based polyclinics, advanced diagnostics, and centers of excellence in oncology, orthopedics, and neurology.

Walder Wyss advised the shareholders of ZIO as legal counsel on the transaction. The team was led by Christian Hagen (Partner/Corporate/M&A) and further included Thomas Meister (Partner/Tax), Katja Schott-Morgenroth (Partner/Corporate/M&A), Daniel Staffelbach (Partner/Health Care), Markus Vischer (Partner/Corporate/M&A), Maurus Winzap (Partner/Tax), Janine Corti (Counsel/Tax), Ursina Gremminger (Managing Associate/Tax), Tabea Gutmann (Managing Associate/Employment), Michael Kissling (Managing Associate/Corporate/M&A), Manuel Bigler (Senior Associate/IP/IT), Nicolas Bopp (Senior Associate/Tax), Lucina Herzog (Senior Associate/Employment), Sabrina Kunz (Senior Associate/Real Estate), Estelle Mathis (Senior Associate/Corporate/M&A), Arbër Hyseni (Associate/Corporate/M&A), Mounia Stocker (Associate/Employment) and Jenny von Arx (Associate/Corporate/M&A).