| CountOfUser ID | Full institution name |
| 768 | UC Berkeley |
| 687 | Harvard |
| 603 | University of Texas - Austin |
| 579 | University of Wisconsin-Madison |
| 517 | University of Michigan |
| 498 | Stanford University |
| 426 | Purdue University |
| 422 | MIT |
| 411 | University of Pittsburgh |
| 404 | University of Pennsylvania |
| 398 | Iowa State University |
| 386 | Ohio State University at Columbus |
| 367 | Pennsylvania State University |
| 346 | University of Minnesota |
| 334 | Yale University |
| 330 | University of Chicago |
| 322 | University of Illinois at Urbana-Champaign |
| 307 | University of Toronto |
| 301 | University of Rochester |
| 279 | Columbia University |
| 257 | Michigan State University |
| 250 | University of Illinois at Chicago |
| 233 | Indiana University |
| 229 | University of Alberta |
| 226 | University of Kentucky |
| 222 | Northwestern University |
| 217 | Wayne State University |
| 204 | Georgia Tech |
| 186 | SUNY Stony Brook |
| 185 | Texas A&M University |
| 182 | University of Virginia |
| 161 | University of North Carolina at Chapel Hill |
| 157 | Montana State University |
| 147 | University of Illinois at Urbana/Champaign (old CrossfirePlusReactions login) |
| 145 | SUNY Buffalo |
| 140 | UC San Diego |
| 139 | Duke University |
| 134 | North Carolina State |
| 130 | Case Western University |
| 128 | Johns Hopkins University |
| 110 | Georgetown University |
| 110 | University of Calgary |
| 109 | University of Washington |
| 105 | Purdue University (old CrossfirePlusReactions login) |
| 103 | University of Connecticut |
| 103 | New York University |
| 99 | University of Western Ontario |
| 96 | Vanderbilt |
| 72 | University of Wisconsin-Madison (old CrossfirePlusReactions login) |
| 71 | North Dakota University |
| 69 | Washington University |
| 68 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 67 | Kent State |
| 57 | University of Cinncinnati |
| 57 | University of Iowa |
| 56 | Simon Fraser University |
| 54 | University of Massachusetts |
| 48 | Virginia Tech |
| 39 | Ohio State University at Columbus (old CrossfirePlusReactions login) |
| 39 | University of Saskatchewan |
| 34 | University of Chicago (old CrossfirePlusReactions login) |
| 33 | Worcester Polytechnic Institute |
| 30 | Michigan State University (old CrossfirePlusReactions login) |
| 29 | Northeast Louisiana University |
| 27 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 25 | George Mason University |
| 24 | Wayne State University (old CrossfirePlusReactions login) |
| 24 | University of Waterloo |
| 19 | University of Wisconsin-System/Center campuses |
| 13 | Mercer University |
| 12 | Iowa State University (old CrossfirePlusReactions login) |
| 8 | University of Illinois at Chicago (old vanilla Crossfire login) |
| 4 | University of Michigan (old vanilla Crossfire login) |
| 4 | University of Michigan (old CrossfirePlusReactions login) |
| 2 | Queens University, Kingston Ontario |
| 1 | Washington University (evaluation login) |