| CountOfUser ID | Full institution name |
| 1420 | University of Michigan |
| 1074 | University of California Berkeley |
| 980 | Stanford University |
| 903 | University of Wisconsin-Madison |
| 800 | Harvard |
| 698 | University of Pennsylvania |
| 665 | University of Minnesota |
| 660 | Purdue University |
| 643 | Ohio State University at Columbus |
| 620 | University of Illinois at Urbana-Champaign |
| 616 | University of Alberta |
| 537 | University of Toronto |
| 514 | University of Texas - Austin |
| 494 | Yale University |
| 491 | MIT |
| 469 | University of Pittsburgh |
| 456 | Pennsylvania State University |
| 447 | University of Illinois at Chicago |
| 444 | University of Rochester |
| 415 | Michigan State University |
| 414 | Wayne State University |
| 414 | University of California San Diego |
| 398 | Columbia University |
| 389 | University of Chicago |
| 376 | University of Washington |
| 338 | SUNY Stony Brook |
| 334 | University of Virginia |
| 331 | Texas A&M University |
| 302 | California Institute of Technology |
| 294 | University of Kentucky |
| 290 | Iowa State University |
| 289 | Northwestern University |
| 282 | Georgia Tech |
| 267 | University of North Carolina at Chapel Hill |
| 254 | Indiana University |
| 249 | SUNY Buffalo |
| 241 | Washington University |
| 230 | Florida State University |
| 226 | Johns Hopkins University |
| 210 | North Carolina State |
| 202 | Boston College |
| 194 | Duke University |
| 180 | University of Colorado at Boulder |
| 176 | University of Montreal |
| 175 | University of California Davis |
| 175 | Montana State University |
| 167 | Vanderbilt |
| 158 | Simon Fraser University |
| 155 | New York University |
| 154 | University of Iowa |
| 153 | Texas Christian University |
| 151 | Case Western University |
| 149 | University of Calgary |
| 148 | University of Georgia |
| 146 | University of Massachusetts |
| 130 | Virginia Commonwealth University |
| 130 | Kent State |
| 119 | Georgetown University |
| 118 | Virginia Tech |
| 117 | North Dakota State University |
| 111 | Brown |
| 111 | Dartmouth |
| 111 | Queens University, Kingston Ontario |
| 110 | University of Wisconsin-System/Center campuses |
| 99 | University of Connecticut |
| 94 | University of Western Ontario |
| 90 | University of Cinncinnati |
| 73 | Drexel |
| 65 | Worcester Polytechnic Institute |
| 64 | University of Saskatchewan |
| 40 | Southwestern Medical Center |
| 36 | Rice University |
| 23 | Northeast Louisiana University |
| 23 | George Mason University |
| 22 | University of Akron |
| 22 | Connecticut College |
| 21 | University of Utah |
| 18 | Wayne State University (old CrossfirePlusReactions login) |
| 17 | Princeton |
| 12 | Mercer University |
| 11 | University of Waterloo |
| 10 | Purdue University (old CrossfirePlusReactions login) |
| 8 | University of Tennessee Knoxville |
| 8 | Ohio State University at Columbus (old CrossfirePlusReactions login) |
| 7 | Iowa State University (old CrossfirePlusReactions login) |
| 6 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 5 | University of Colorado at Colorado Springs |
| 4 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 3 | University of Illinois at Chicago (old vanilla Crossfire login) |
| 3 | Oregon State |
| 3 | University of Arizona |
| 1 | MD Anderson Cancer Center, U of Texas |