License Search

To check the validity of a license to use a product or service in advertising, please enter the license number here:

Frequent Ask

The license number is located on the lower right edge of the test seal. If the license number is missing, there is usually abusive advertising with the test logo. In this case, please send us to logolicenses@pruefengel.de A photograph of the featured product or advertisement bearing the test logo, stating the date and location of the photograph.

How can I extend my license?

How can I purchase a license?

Basically, products and services are tested in a wide variety of categories. This is a particular focus Prüfengel Institute for Equal Opportunities. Both smaller brands or start-ups, as well as large companies, have the opportunity to have their products tested.

If you would like to work with us, please contact us via the Contact form. We will process your request as soon as possible and get back to you.