Scimago Institutions Rankings is a science evaluation resource to assess worldwide universities and research-focused institutions. The ranking tools and reports measure research activity of worldwide institutions having noteworthy scientific output, including universities, government agencies, research labs, hospitals and more.

Outstanding characteristics defining SIR are:

• Worldwide & inclusive emphasis: The report embraces universities and other research-focused organizations from different sizes, having different missions and belonging to countries from the five continents.
• Customizable: It allows users to design its own rankings by filtering and combining the ones provided. It also allows to decide which dimensions of research activity to measure or compare and which institutions to include according to the needs of users' evaluation processes.
• Comprehensive data: To achieve reliable and transparent results the data have been extracted form the world largest authoritative scientific database, Scopus and undergo intense efforts on data processing and institution attribution.