| CountOfUser ID | Full institution name |
| 1219 | University of California Berkeley |
| 912 | University of Minnesota |
| 884 | Stanford University |
| 876 | University of Michigan |
| 820 | MIT |
| 762 | University of Toronto |
| 731 | University of California Irvine |
| 717 | University of Wisconsin-Madison |
| 712 | University of Pennsylvania |
| 703 | Harvard |
| 651 | Michigan State University |
| 648 | University of Alberta |
| 630 | Purdue University |
| 617 | Yale University |
| 613 | University of Pittsburgh |
| 587 | Pennsylvania State University |
| 566 | University of Texas - Austin |
| 562 | University of Illinois at Urbana-Champaign |
| 531 | Ohio State University at Columbus |
| 524 | California Institute of Technology |
| 520 | Wayne State University |
| 499 | University of Chicago |
| 488 | Indiana University |
| 473 | Emory |
| 470 | University of Virginia |
| 453 | Columbia University |
| 412 | University of Illinois at Chicago |
| 359 | University of Rochester |
| 356 | Cornell |
| 348 | SUNY Buffalo |
| 347 | University of California San Diego |
| 346 | University of Calgary |
| 344 | Notre Dame |
| 319 | University of Kentucky |
| 311 | Boston College |
| 295 | Duke University |
| 287 | North Carolina State |
| 276 | Iowa State University |
| 258 | SUNY Stony Brook |
| 256 | Case Western University |
| 241 | Northwestern University |
| 238 | University of Washington |
| 234 | Texas A&M University |
| 225 | University of North Carolina at Chapel Hill |
| 206 | University of Sherbrooke |
| 198 | Virginia Commonwealth University |
| 197 | Washington University |
| 196 | Rice University |
| 192 | Georgia Tech |
| 190 | Johns Hopkins University |
| 183 | Florida State University |
| 175 | Kent State |
| 163 | University of Iowa |
| 160 | University of Montreal |
| 154 | University of Connecticut |
| 154 | Montana State University |
| 153 | University of Arizona |
| 150 | Queens University, Kingston Ontario |
| 149 | University of Western Ontario |
| 146 | University of Colorado at Boulder |
| 137 | University of Akron |
| 137 | University of Georgia |
| 131 | Instituto de Quimica-UNAM Ciudad Universitaria Coyoacan, Mexico |
| 131 | Virginia Tech |
| 130 | University of Cinncinnati |
| 126 | North Dakota State University |
| 126 | Simon Fraser University |
| 124 | University of California Davis |
| 123 | Dartmouth |
| 116 | Georgetown University |
| 111 | Princeton |
| 105 | University of Wisconsin-System/Center campuses |
| 105 | University of Tennessee Knoxville |
| 103 | Auburn University |
| 98 | Southwestern Medical Center |
| 92 | Vanderbilt |
| 90 | University of Saskatchewan |
| 87 | Brigham Young University |
| 86 | University of Massachusetts |
| 86 | Brown |
| 71 | Worcester Polytechnic Institute |
| 59 | Texas Christian University |
| 52 | New York University |
| 51 | University of Miami |
| 48 | Northeast Louisiana University |
| 44 | Connecticut College |
| 41 | Mercer University |
| 38 | Wayne State University (old CrossfirePlusReactions login) |
| 24 | Drexel |
| 23 | Purdue University (old CrossfirePlusReactions login) |
| 22 | Rutgers |
| 22 | Rockefeller University |
| 13 | MD Anderson Cancer Center, U of Texas |
| 12 | Georgia State |
| 12 | University of Southern California L.A |
| 9 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 7 | George Mason University |
| 6 | Iowa State University (old CrossfirePlusReactions login) |
| 4 | University of Queensland, Australia |
| 4 | University of Illinois at Urbana/Champaign (old CrossfirePlusReactions login) |
| 4 | Louisiana State University |
| 2 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 1 | University of Waterloo |