1.

California Institute of Technology (CA)

2.

University of Chicago (IL)

3.

Princeton University (NJ)

4.

Massachusetts Institute of Technology (MA)

5.

Harvard University (MA)

6.

University of California–Berkeley (CA)

7.

Stanford University (CA)

8.

University of California–Santa Barbara (CA)

9.

Penn State University–University Park (PA)

10.

University of Texas–Austin (TX)

11.

Cornell University (NY)

12.

Ohio State University (OH)

12.

University of California–Davis (CA)

12.

University of California–Santa Cruz (CA)

12.

University of Maryland–College Park (MD)