After reaching the matura at the grammar school in Frauenfeld in 2004, she studied Business economics at the University of St. Gallen and attained a Bachelor's degree in 2007.
Mäder gained national attention as a co-initiator [1] the successful referendum against fixed book prices in early 2012.
In 2012 Mäder was a candidate for the Grand Council of Thurgau and got the first replacement place for the FDP in the Weinfelden District.
Together with Simon Scherrer, President of the Young Liberals of the City of St. Gallen, and Silvan Amberg from Zurich, former President of the FDP's gay organization, she founded the independent liberal movement up!
Brenda Mäder withdrew shortly afterwards due to professional commitments and time spent abroad.