| CountOfUser ID | Full institution name |
| 735 | University of Wisconsin-Madison |
| 668 | Harvard |
| 598 | UC Berkeley |
| 579 | University of Illinois at Urbana-Champaign |
| 561 | Purdue University |
| 520 | Pennsylvania State University |
| 495 | Ohio State University at Columbus |
| 474 | University of Pittsburgh |
| 460 | University of Pennsylvania |
| 442 | University of Minnesota |
| 424 | Texas A&M University |
| 421 | University of Alberta |
| 416 | Stanford University |
| 415 | University of Michigan |
| 409 | University of Illinois at Chicago |
| 391 | MIT |
| 385 | University of Texas - Austin |
| 367 | University of Rochester |
| 367 | University of Toronto |
| 359 | University of Chicago |
| 327 | Iowa State University |
| 257 | Indiana University |
| 256 | Georgia Tech |
| 256 | Yale University |
| 255 | UC San Diego |
| 251 | Michigan State University |
| 245 | University of Washington |
| 239 | University of Illinois at Urbana/Champaign (old CrossfirePlusReactions login) |
| 235 | Duke University |
| 234 | University of Kentucky |
| 227 | SUNY Stony Brook |
| 224 | Northwestern University |
| 196 | Johns Hopkins University |
| 194 | University of Virginia |
| 168 | University of Connecticut |
| 154 | North Carolina State |
| 149 | SUNY Buffalo |
| 144 | New York University |
| 143 | University of Western Ontario |
| 143 | University of North Carolina at Chapel Hill |
| 140 | Vanderbilt |
| 139 | Montana State University |
| 138 | Wayne State University |
| 133 | University of Calgary |
| 131 | Case Western University |
| 125 | Washington University |
| 118 | University of Massachusetts |
| 90 | Columbia University |
| 90 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 86 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 77 | Georgetown University |
| 73 | University of Cinncinnati |
| 69 | University of Waterloo |
| 60 | Purdue University (old CrossfirePlusReactions login) |
| 58 | Kent State |
| 46 | University of Chicago (old CrossfirePlusReactions login) |
| 43 | Michigan State University (old CrossfirePlusReactions login) |
| 41 | University of Wisconsin-Madison (old CrossfirePlusReactions login) |
| 33 | Northeast Louisiana University |
| 26 | University of Wisconsin-System/Center campuses |
| 22 | University of Saskatchewan |
| 22 | Wayne State University (old CrossfirePlusReactions login) |
| 22 | Washington University (evaluation login) |
| 20 | Iowa State University (old CrossfirePlusReactions login) |
| 15 | University of Connecticut (evaluation login) |
| 14 | Wayne State University (old vanilla Crossfire login) |
| 12 | Simon Fraser University |
| 8 | Ohio State University at Columbus (old CrossfirePlusReactions login) |
| 8 | University of Michigan (old CrossfirePlusReactions login) |
| 7 | University of Illinois at Chicago (old vanilla Crossfire login) |
| 5 | Mercer University |
| 4 | University of Wisconsin-System/Center campuses(old vanilla Crossfire login) |
| 1 | Northwestern University (old CrossfirePlusReactions login) |
| 1 | University of Rochester (Evaluation login) |