Patriarchal Institute of Patristic Studies is the other organization in Thessaloniki, Greece.
According to PR-model, pipm.gr is ranked 2,240,953rd in multilingual Wikipedia, in particular this website is ranked 32,498th in Greek Wikipedia.
The website is placed before ezbasic.hu and after petri-nikolai-freiberg.de in the BestRef global ranking of the most important sources of Wikipedia.