| CountOfUser ID | Full institution name |
| 811 | Harvard |
| 769 | University of Wisconsin-Madison |
| 537 | University of Pennsylvania |
| 529 | University of Illinois at Urbana/Champaign (old CrossfirePlusReactions login) |
| 494 | UC Berkeley |
| 481 | University of Texas - Austin |
| 477 | University of Minnesota |
| 467 | University of Michigan |
| 425 | Iowa State University |
| 402 | Ohio State University at Columbus |
| 402 | Stanford University |
| 366 | University of Pittsburgh |
| 365 | University of Toronto |
| 352 | Purdue University |
| 340 | University of Rochester |
| 294 | Texas A&M University |
| 287 | University of Alberta |
| 275 | University of Illinois at Chicago |
| 252 | University of Chicago |
| 243 | Pennsylvania State University |
| 237 | Indiana University |
| 205 | Michigan State University |
| 196 | Washington University |
| 194 | University of Kentucky |
| 193 | University of North Carolina at Chapel Hill |
| 186 | SUNY Stony Brook |
| 186 | UC San Diego |
| 164 | University of Illinois at Urbana-Champaign |
| 162 | Vanderbilt |
| 158 | Johns Hopkins University |
| 157 | Georgia Tech |
| 156 | Wayne State University |
| 138 | University of Massachusetts |
| 136 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 121 | University of Waterloo |
| 120 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 115 | North Carolina State |
| 105 | Northwestern University |
| 105 | Mercer University |
| 92 | University of Washington |
| 77 | New York University |
| 77 | Northeast Louisiana University |
| 65 | University of Cinncinnati |
| 56 | University of Western Ontario |
| 54 | University of Chicago (old CrossfirePlusReactions login) |
| 53 | Purdue University (old CrossfirePlusReactions login) |
| 53 | University of Wisconsin-Madison (old CrossfirePlusReactions login) |
| 42 | Georgetown University |
| 35 | Iowa State University (old CrossfirePlusReactions login) |
| 33 | Kent State |
| 26 | Case Western University |
| 24 | University of Wisconsin-System/Center campuses |
| 22 | Michigan State University (old CrossfirePlusReactions login) |
| 22 | Wayne State University (old vanilla Crossfire login) |
| 17 | University of Rochester |
| 13 | Ohio State University at Columbus (old CrossfirePlusReactions login) |
| 11 | Wayne State University (old CrossfirePlusReactions login) |
| 9 | University of Michigan (old CrossfirePlusReactions login) |
| 9 | Northwestern University (old CrossfirePlusReactions login) |
| 9 | University of Connecticut |
| 8 | University of Saskatchewan |
| 8 | Washington University |
| 7 | University of Illinois at Chicago (old vanilla Crossfire login) |
| 6 | Montana State University |
| 3 | University of Lethbridge |
| 3 | Virginia Tech |
| 3 | Indiana University (old CrossfirePlusReactions login) |
| 3 | Yale University |
| 1 | Northwestern University (old vanilla Crossfire login) |
| 1 | Indiana University (old vanilla Crossfire login) |