From Times Higher Education ranking
- Harvard US
- Yale University US
- University of Cambridge UK
- University of Oxford UK
- California Institute of Technology US
- Imperial College London UK
- University College London UK
- University of Chicago US
- Massachusetts Institute of Technology US
- Columbia University US
- University of Pennsylvania US
- Princeton University US
- Duke University US
- Johns Hopkins University US
- Cornell University US
- Australian National University Australia
- Stanford University US
- University of Michigan US
- University of Tokyo Japan
- McGill University Canada