Carl Duisberg Centren is one of the first educational service providers in Germany to have its quality management system audited on an annual basis by an independent institution. Since 1997, the ISO 9001 certificate has been a clear symbol for our continuous conformity with the requirements of this globally recognised quality management model for the company's language courses, language travel and international school programs.
- Service provided within 24 hours
- Classroom visits carried out by pedagogically trained personnel for quality assurance purposes
- Evaluation and feedback of the training by the participants