License Search
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Frequently Asked Questions
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.org A photograph of the featured product or advertisement bearing the test logo, stating the date and location of the photograph.
Do you have questions about an existing license or would you like to renew a license? Please contact us at logolicenses@pruefengel.org We will process your request as soon as possible and get back to you.
Basically, products and services are tested in various categories. The Prüfgel Institute pays particular attention to equal opportunities. Both smaller brands or start-ups and 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.