Massachusetts Institute of Technology (MIT) – United States
Stanford University – United States
Harvard University – United States
California Institute of Technology (Caltech) – United States
University of Oxford – United Kingdom
University of Cambridge – United Kingdom
ETH Zurich – Switzerland
University of Chicago – United States
University of Pennsylvania – United States
University of California, Berkeley – United States
Similar rankings: https://www.topuniversities.com/university-rankings/world-university-rankings/2023