Schaer Pharma is owned by the family of Michel Schaer.
1989 Founding of Tentan AG, Ramlinsburg
1998 Acquisition of OTC Pharma AG
2002 Acquisition of Ars Vitae AG
2007 Acquisition of Kräuter-Pfarrer-Künzle AG
2008 Acquisition of Eduard Vogt AG
2008 Construction of a new corporate headquarters in Itingen, BL
2009 Completion of headquarters building and move-in (May)
2009 Founding of Tentan Deutschland GmbH and Tentan Hongkong Ltd.
2009 OTC Pharma renamed "Medicoss AG".
2010 Founding of Tentan UK Ltd.
2012 Acquisition of New Care AG.