| USA |
| Boston University (MA) [2] |
| Brown University (RI) |
| California Institute of Technology (CA) |
| Carnegie Mellon University (PA) |
| Case Western Reserve University (OH) |
| Columbia University (NY) |
| Cornell University (NY) |
| Dartmouth College (NH) |
| Duke University (NC) |
| Emory University (GA) |
| Georgetown University (DC) |
| Georgia Institute of Technology (Georgia Tech) (GA) |
| Harvard University (MA) |
| Indiana University, Bloomington (IN) |
| Johns Hopkins University (MD) |
| Massachusetts Institute of Technology MIT (MA) |
| Michigan State University (MI) |
| New York University (NY) |
| Northwestern University (IL) |
| Ohio State University (OH) |
| Paul H. Nitze School of Advanced International Studies (DC) |
| Pennsylvania State University, University Park (PA) |
| Princeton University (NJ) |
| Purdue (IN) |
| Rice University, Houston (TX) |
| Rutgers, the State University of NJ (NJ) |
| Stanford University (CA) |
| Texas A&M University (TX) |
| Tufts University (MA) |
| University of Chicago (IL) |
| University of Colorado, Boulder (CO) |
| University of Florida (FL) |
| University of Georgia (GA) |
| University of Illinois – Urbana – Champaign (IL) |
| University of Iowa (IA) |
| University of Maryland (MD) |
| University of Michigan, Ann Arbor (MI) |
| University of Minnesota, Twin Cities (MN) |
| University of North Carolina at Chapel Hill (NC) |
| University of Notre Dame (IN) |
| University of Pennsylvania (PA) |
| University of Pittsburgh (PA) |
| University of Rochester (NY) |
| University of Southern California (CA) |
| University of Texas, Austin (TX) |
| University of Virginia (VA) |
| University of Washington, Seattle (WA) |
| University of Wisconsin, Madison (WI) |
| UoC [3] Berkeley (CA) |
| UoC Davis (CA) |
| UoC Irvine (CA) |
| UoC San Diego (CA) |
| UoC Santa Barbara (CA) |
| UoC UCLA (CA) |
| Vanderbilt University (TN) |
| Washington University in St. Louis (MO) |
| Yale University (CT) |