The Association numbers 87 theatre companies as members. The Statute of 2017 is signed by the following Companies:
Theatro Technis (Theatre of Art)
Dolihos (Theatro Poreia)
Theatro tou Neou Kosmou
Argo Theatre,
Anikti Porta
Theatro epi Kolono
Sin Epi
I Pandimos Ios
Neos Logos
Opseis Etaireia
Theatro Fournos
Aeroplio
Gaff theatre Goup
Angelus Novus
Omada Plani
Helix
Horos
Praxis Epta
Dameblanche
Kato apo tin Gefira
Iperion
Ohi Pezoume
Anemi
Theatrinon Theates
Minus Two
Anima
Animal
Alli Plevra
Theatromathia
Prassin Aloga
Mythodia
Teihi
Kentro Theatrikis Erevnas of Thessaloniki
Theatriki Skini