International Ergonomics Association (ΙΕΑ)
Ergonomics Society is a federated member of the International Ergonomics Association (ΙΕΑ) since 1994. Since then, HES takes part in every congress as well as the IEA council meetings. HES is represented to the IEA council by Prof. Nicolas Marmaras.

Centre for the Registration of European Ergonomists (CREE)
Ergonomics Society is the national body through which Greek ergonomists can submit their application for the certificaton of European Ergonomist (Eur.Erg). HES is taking part in the CREE council meetings through its representative and submits for evaluation the candidatures of the Greek Ergonomists.

Federetion of European Ergonomics Societies (FEES)
 The Hellenic Ergonomics Society has been a founding member of the Federation of European Ergonomics Societies. Through its representative, HES takes part in the FEES council and collaborates with all the FEES members in the promotion of Ergonomics in the European Union.