UI Greenmetric participated in IREG Forum, represented by Prof. Dr. Ir. Riri Fitri Sari, M.Sc., M.M. Over 140 participants and speakers from 40 countries attended IREG Forum on Rankings by Subject held at the Aalborg University in the city of Aalborg in Denmark. There had been a general consensus among the participants of the IREG Form that rankings by subject or fields of study represent a positive trend as these rankings provide a wealth of information valid for users of rankings both on national and international level. As an example how to approach a ranking by subject, the fields of engineering was discussed in detail, taking into account both academic as well as industry’s perspectives. At the IREG Forum, the IREG Guidelines for Stakeholders of Academic Rankings were presented and officially launched as a document of IREG Observatory.