The external teaching companions of the Department are the following:
| Full Name | Field | e-mail address |
| Vasilios Agelidis | Information Technology | vangelid@pme.duth.gr |
| Georgios Arvanitidis | Law | g-arvan2@otenet.gr |
| Sofia Veneti | Information Technology | sofia.veneti@gmail.com |
| Konstantinos Gianneris | Economics | gianners@otenet.gr |
| Georgios Theriou | Economics | therioungeorgios@gmail.com |
| Maria Kalaitzi | Economics | kalaitzim@in.gr |
| Stavros Kontakos | Mathematics | stkontakos@yahoo.gr |
| Georgios Mademtzoglou | Information Technology | gmademtz@sch.gr |
| Ioannis Makedos | Economics | john1305@in.gr |
| Nikolaos Mittas | Mathematics | nmittas@csd.auth.gr |
| Sotirios Nalbantis | Economics | s_nalmp@yahoo.gr |
| Konstantinos Papadopoulos | Economics | kpapadopoulos@parainesis.gr |
| katerina Papaioannou | Economics | a_papai@sdo.teikav.edu.gr |
| Ioannis Petasakis | Mathematics | jpetasakis@hotmail.com |
| Ilias Polatoglou | Economics | PolatKav@panafonet.gr |
| Lazaros Sarigiannidis | Economics | lsarigia@pme.duth.gr |
| Konstantinos Stergidis | Information Technology | kostas@stergidis.com |
| Georgios Stolikidis | Economics | info@altius-net.gr |
| Kalliopi Sotiropoulou | Information Technology | lsotir@teikav.edu.gr |
| Labrini Tachtatzi | Information Technology | sabas837@otenet.gr |
| Stylianos Tsiolakidis | Economics | tsiolakidisstelios@yahoo.gr |
| Leonidas Fragidis | Information Technology | fragidis@teikav.edu.gr |
| Dimitrios Chatzoudes | Economics | dchatzoudes@yahoo.gr |
| Athanasios Chrysomallis | Economics | xrisomalis@pksec.gr |