#20 — Duke University (Durham, North Carolina)
#19 — University of California, San Diego (San Diego, California)
#18 — Imperial College London (United Kingdom)
#17 — University of Michigan (Ann Arbor, Michigan)
#16 — University of Toronto (Canada)
#14 (tie) —Yale University (New Haven, Connecticut)
#14 (tie) — University of Pennsylvania (Philadelphia, Pennsylvania)
#13 — Princeton University (Princeton, New Jersey)
#12 — Johns Hopkins University (Baltimore, Maryland)
#11 — University of Washington (Seattle, Washington)
#10 — University of Chicago (Chicago, Illinois)
#9 — Columbia University (New York, New York)
#8 — University of California, Los Angeles (Los Angeles, California)
#7 — California Institute of Technology (Pasadena, California)
#6 — University of Cambridge (United Kingdom)
#5 — University of Oxford (United Kingdom)
#4 — Stanford University (Stanford, California)
#3 — University of California, Berkeley (Berkeley, California)
#2 — Massachusetts Institute of Technology (Cambridge, Massachusetts)
#1 — Harvard University (Cambridge, Massachusetts)
