Responsibility & Compliance

In November 2025, Hogrefe Digital Solutions GmbH received ISO 27001 certification.

We are transparent regarding the policies and technologies we use to implement security and privacy in HTS Online.

This Code of Conduct for the Hogrefe Publishing Group serves as a guideline for ethical and lawful behavior within our company.

Hogrefe has made a commitment to sustainability and to doing our utmost to help our planet and our fellow citizens.