1 Harvard University (Tied for First)

1 University of Pennsylvania (Tied for First)

1 Stanford University (Tied for First)

4 Princeton University

4 Yale University

6 Massachusets Institute of Technology

7 Columbia University

8 Cornell University

8 Dartmouth University

10 Brown University

11 University of Chicago

12 Duke University

13 California Institute of Technology

13 Carnegie Mellon University

15 Rice University

15 Northwestern University