- 1997
In September Sylvia and Werner Trenker found MED TRUST as a business enterprise with a focus on diabetes
 - 2001
The Wellion brand is launched
 - 2002
The first Wellion products (produced by partner companies) enter the market
 - 2008
Development and manufacturing of own products
 - 2015
Manufacturer of products for partner companies under their brands (OEM production)
 
- 2000
Subsidiary in Bulgaria
 - 2003
Subsidiary in Germany
 - 2004
Start to set up distributors in Europe
 - 2006
Subsidiary in Sweden
 - 2009
Subsidiaries in Greece and the Czech Republic
 - 2010
Start to set up distributors outside of Europe
 - 2012
Subsidiary in Slovakia and Slovenia
 - 2013
Subsidiaries in Portugal
 - 2015
Subsidiary in Croatia
 - 2017
Subsidiary in Italy
 - 2019
Subsidiary in France