| CountOfUser ID | Full institution name |
| 1279 | University of Pennsylvania |
| 1203 | Purdue University |
| 991 | University of California Berkeley |
| 986 | Harvard |
| 931 | University of Wisconsin-Madison |
| 911 | Stanford University |
| 835 | University of Michigan |
| 732 | University of Alberta |
| 708 | University of Minnesota |
| 705 | University of Toronto |
| 649 | University of Illinois at Chicago |
| 624 | University of Illinois at Urbana-Champaign |
| 605 | Pennsylvania State University |
| 552 | MIT |
| 545 | Michigan State University |
| 482 | University of Texas - Austin |
| 460 | Yale University |
| 444 | Ohio State University at Columbus |
| 422 | Wayne State University |
| 412 | University of Chicago |
| 410 | University of Rochester |
| 398 | University of Calgary |
| 390 | University of Pittsburgh |
| 380 | University of Washington |
| 364 | University of Kentucky |
| 357 | University of Virginia |
| 343 | Indiana University |
| 343 | California Institute of Technology |
| 342 | Columbia University |
| 342 | Vanderbilt |
| 329 | Iowa State University |
| 320 | University of California San Diego |
| 316 | SUNY Stony Brook |
| 293 | Johns Hopkins University |
| 292 | Northwestern University |
| 287 | Florida State University |
| 279 | Montana State University |
| 261 | SUNY Buffalo |
| 243 | Case Western University |
| 242 | University of North Carolina at Chapel Hill |
| 240 | Texas A&M University |
| 231 | Georgia Tech |
| 221 | Virginia Commonwealth University |
| 218 | Boston College |
| 209 | University of Massachusetts |
| 207 | University of Utah |
| 187 | North Carolina State |
| 176 | Duke University |
| 170 | Queens University, Kingston Ontario |
| 166 | Kent State |
| 162 | New York University |
| 159 | University of Iowa |
| 152 | Georgetown University |
| 148 | University of Western Ontario |
| 136 | University of Colorado at Boulder |
| 136 | Simon Fraser University |
| 136 | University of California Davis |
| 135 | Texas Christian University |
| 133 | Washington University |
| 133 | North Dakota University |
| 133 | University of Connecticut |
| 132 | Virginia Tech |
| 125 | University of Cinncinnati |
| 109 | University of Saskatchewan |
| 106 | Northeast Louisiana University |
| 96 | Brown |
| 91 | Dartmouth |
| 90 | University of Wisconsin-System/Center campuses |
| 88 | University of Montreal |
| 48 | Worcester Polytechnic Institute |
| 45 | University of Chicago (old CrossfirePlusReactions login) |
| 43 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 41 | Purdue University (old CrossfirePlusReactions login) |
| 38 | Wayne State University (old CrossfirePlusReactions login) |
| 37 | Southwestern Medical Center |
| 17 | Mercer University |
| 15 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 9 | Iowa State University (old CrossfirePlusReactions login) |
| 8 | Brigham Young University |
| 5 | Northwestern University (old CrossfirePlusReactions login) |
| 5 | Drexel |
| 4 | MD Anderson Cancer Center, U of Texas |
| 4 | University of Regina |
| 3 | University of Michigan (old vanilla Crossfire login) |
| 2 | University of Illinois at Chicago (old vanilla Crossfire login) |
| 1 | George Mason University |
| 1 | Ohio State University at Columbus (old CrossfirePlusReactions login) |
| 1 | University of Wisconsin-Madison (old CrossfirePlusReactions login) |