The SCImago Institutions Rankings (SIR)[1] since 2009 has published its international ranking of worldwide research institutions, the SIR World Report.[2] The SIR World Report is the work of the SCImago Research Group,[3] a Spain-based research organization consist of members from the Spanish National Research Council (CSIC), University of Granada, Charles III University of Madrid, University of Alcalá, University of Extremadura and other education institutions in Spain.[4]
The ranking is divided into five sectors: government, health, higher education, private and others. For each, it measures areas such as: research output, international collaboration, normalized impact and publication rate.[3]