Stiftung Warentest


Stiftung Warentest is a German foundation and independent consumer organisation. It carries out comparative investigations of products and services and is well-known and respected for its objectivity and use of scientific methods. All the tested products are bought anonymously and the investigated services used covertly. Its publications are free of adverts. Stiftung Warentest was established by the Federal Republic of Germany in December 1964. It is based in Berlin.

Success Stories

Decisive improvement in safety, quality and environmental performance of numerous products; detection of plasticisers and prohibited heat treatment in olive oil; detection of added sugars in fruit juices; implementation of side impact tests during tests of children's car seats; detection of harmful PAH (polycyclic aromatic hydrocarbons) in a wide variety of products, such as children’s toys, prams, DIY tools, sports equipment; development of environmentally friendly laundry detergents; improvement of the insurance terms and conditions in the field of occupational disability insurances; definition of a basic protection codex in the area of civil liability insurance, adopted by the insurance industry.


  • Founded in 1964
  • A BEUC member since 1965
  • 356 staff
  • Our main magazine ’test’ has a circulation of 365,000 (retail + subscription), Finanztest has 200,000
  • 72 million website visits in 2019

Contact Card

Stiftung Warentest - STIWA
Affiliate Member
11/13 Lützowplatz
D-10785 Berlin

Leiter des Bereichs Untersuchungen
Holger Brackemann
Phone: +49 30 26312398