The Technological Educational Institute (TEI) of Athens (TEI ATH; Greek: Ανώτατο Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας) is a higher-educational institute supervised by the Minister of Education, Lifelong Learning and Religious Affairs. It is the third largest Institution of Higher Education in Greece, with approximately 35.000 students, a regular faculty of 600 and a temporary faculty of 1700 academics. The Technological Educational Institute of Athens offers undergraduates and postgraduates studies.

The Hellenic Academic Library Link (HEAL-Link) is an association that was established in 1999 as a consortium of the Hellenic academic libraries and it has redefined its objectives again in 2005. HEAL-Link members are all the higher education institutions in Greece (22 universities and 14 TEI), the Academy of Athens and the National Library of Greece. Its main objective is to provide resources and enhanced support services for the educational and research production of its members.