Quacquarelli Symonds Limited (QS) is a non-profit organization headquartered in London, with branches around the world. It was established in 1990 and began its work as a ranking entity in 2004, ranking the top 800 universities globally based on the following criteria:

  • Academic reputation: 40% of the total ranking.
  • Student-to-faculty ratio: 20%.
  • Research output: Publications by faculty members, the rate of publication, and citations of research by global researchers and academics: 20%.
  • Employer reputation: Surveys of employers and companies regarding the performance and readiness of university graduates: 10%.
  • Proportion of international students: 5%.
  • Proportion of international faculty: 5%

Times Higher Education World University Rankings

The Times Higher Education World University Rankings is one of the largest and most diverse global university rankings. The 2023 edition includes over 1,799 universities from 104 countries worldwide.

The 2023 ranking assesses the top universities based on 13 performance indicators that measure excellence across four key areas:

  1. Teaching
  2. Research
  3. Knowledge transfer
  4. International outlook

Webometrics

This ranking is issued by the Spanish research center CSIC (Consejo Superior de Investigaciones Científicas) and covers more than 12,000 universities and higher institutes worldwide. It evaluates university performance based on their web presence and can be considered a ranking of university websites.