Deal announcement: OnO Holding SA
Thierry Thormann

June 2026
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Altenburger advised OnO Holding AG, a Swiss group with more than 30 years of experience in the ophthalmologic sector (Group - ONO) in the acquisition of Müller Optik Zürich and Augenarztzentrum Zürich AG.
Altenburger’s team was led by Thierry Thormann and further included Ralph Imoberdorf, Céline Spahn and Isabelle Meyer.
