| CountOfUser ID | Full institution name |
| 1466 | Stanford University |
| 810 | University of California Berkeley |
| 731 | University of Wisconsin-Madison |
| 678 | Indiana University |
| 670 | Harvard |
| 627 | Pennsylvania State University |
| 584 | University of California San Diego |
| 580 | University of Toronto |
| 556 | Michigan State University |
| 555 | University of Michigan |
| 544 | University of Minnesota |
| 535 | University of Alberta |
| 509 | MIT |
| 468 | Purdue University |
| 457 | SUNY Stony Brook |
| 454 | University of Pennsylvania |
| 446 | University of Texas - Austin |
| 421 | Ohio State University at Columbus |
| 391 | University of Illinois at Chicago |
| 381 | Yale University |
| 376 | Wayne State University |
| 353 | University of Illinois at Urbana-Champaign |
| 349 | University of Pittsburgh |
| 339 | Iowa State University |
| 338 | University of Chicago |
| 301 | Columbia University |
| 300 | University of Rochester |
| 257 | Mercer University |
| 254 | Texas A&M University |
| 253 | University of Virginia |
| 248 | SUNY Buffalo |
| 237 | University of Kentucky |
| 229 | Johns Hopkins University |
| 222 | Virginia Commonwealth University |
| 215 | Northwestern University |
| 206 | Vanderbilt |
| 203 | University of Washington |
| 189 | Virginia Tech |
| 187 | University of Calgary |
| 182 | University of Western Ontario |
| 179 | Georgia Tech |
| 174 | University of California Davis |
| 166 | University of Connecticut |
| 157 | Case Western University |
| 155 | California Institute of Technology |
| 154 | University of North Carolina at Chapel Hill |
| 153 | New York University |
| 135 | University of Iowa |
| 132 | North Carolina State |
| 130 | Purdue University (old CrossfirePlusReactions login) |
| 128 | University of Massachusetts |
| 125 | Duke University |
| 123 | Montana State University |
| 118 | Worcester Polytechnic Institute |
| 103 | Washington University |
| 102 | University of Illinois at Urbana/Champaign (old CrossfirePlusReactions login) |
| 80 | North Dakota University |
| 79 | University of Wisconsin-System /Center campuses (old CrossfirePlusReactions login) |
| 78 | Kent State |
| 74 | University of Cinncinnati |
| 71 | Queens University, Kingston Ontario |
| 64 | Simon Fraser University |
| 57 | Georgetown University |
| 54 | University of Wisconsin-Madison (old CrossfirePlusReactions login) |
| 52 | Wayne State University (old CrossfirePlusReactions login) |
| 44 | Michigan State University (old CrossfirePlusReactions login) |
| 40 | University of Chicago (old CrossfirePlusReactions login) |
| 39 | University of Saskatchewan |
| 33 | University of Regina |
| 30 | Ohio State University at Columbus (old CrossfirePlusReactions login) |
| 29 | Northeast Louisiana University |
| 18 | Pennsylvania State University (old CrossfirePlusReactions login) |
| 6 | University of Michigan (old vanilla Crossfire login) |
| 5 | Iowa State University (old CrossfirePlusReactions login) |
| 5 | George Mason University |
| 4 | Boston College |
| 3 | University of Illinois at Chicago (old vanilla Crossfire login) |
| 3 | University of Wisconsin-System/Center campuses |