- Harvard University United States
- Stanford University United States
- Princeton University United States
- University of Chicago United States
- University of Oxford United Kingdom
- Columbia University United States
- University of Cambridge United Kingdom
- University of California Berkeley United States
- Yale University United States
- University College London United Kingdom
- University of California Los Angeles United States
- University of Toronto Canada
- University of Michigan United States
- Australian National University Australia
- New York University United States
- University of Edinburgh United Kingdom
- Rutgers the State University of New Jersey United States
- University of Pittsburgh United States
- Cornell University United States
- University of St. Andrews United Kingdom
- McGill University Canada
- University of Melbourne Australia
- University of Pennsylvania United States
- University of North Carolina, Chapel Hill United States
