Quality of our language schools

Membership in language school associations and official accreditations:


Language schools in Spain:

  • Instituto Cervantes accredited                                                                      
  • D.E.L.E. exam centres
  • SIELE exam centres
  • Exams for Spanish citizenship
  • Madrid Chamber of Commerce and Industry
  • Spanish Federation of Associations of Spanish Schools for Foreigners (FEDELE)
  • Recognised by the CSN in Sweden
  • Educational leave – recognised provider
  • Erasmus+
  • UNEDassis

Language school in Chile:

  • D.E.L.E. exam centre
  • Universidad Bolivariana
  • Chilean-Swiss Chamber of Commerce
  • Educational leave – recognised provider

Language schools in Germany:

  • TestDaF exam centre
  • Weiterbildung Hamburg
  • TELC language exams
  • Recognised by the CSN in Sweden

Language Exchange

We guarantee high teaching standards at our member schools. We will motivate you to learn German and Spanish and embrace other cultures. Language study trips promote understanding of different ways of life. At our schools, you will find intercultural awareness and engagement.

Quality at TANDEM schools goes beyond the language lessons themselves and is based on a holistic view of learning. Our language courses promote communication and foster independent, continuous learning. The language exchange plays an important role in this context.

Our TANDEM© Language Exchange is a learning method promoted by our association that connects people through language. At your request, our language schools will arrange language partnerships with people who are studying your first language. This increases the effectiveness of language learning, promotes intercultural exchange and supports self-directed learning.

TANDEM Quality

Our seal of quality is an internal quality certification for our member schools. We check the quality of the schools’ facilities, administration, human resources, teaching standards, cultural programme, services, customer care and transparency in promotional activities. We encourage the schools to engage with their community and with cultural initiatives and environmental organisations. This takes the form of donations, buying from non-profit organisations, actively supporting campaigns and projects, and choosing fair-trade products. TANDEM schools support sustainable, environmentally and socially responsible tourism.