| Ohio State University |
38,492 |
| University of Iowa |
32,180 |
| UC Davis |
31,326 |
| University of Michigan |
30,985 |
| The University of Georgia |
26,636 |
| Florida State University |
20,924 |
| University of Wisconsin-Madison |
20,922 |
| University of Minnesota |
19,779 |
| University of Washington |
19,675 |
| University of Rochester |
17,303 |
| Arizona State University |
12,813 |
| The University of Western Ontario |
10,411 |
| The University of Montana |
10,268 |
| University of Nebraska |
9,689 |
| National University of Singapore |
9,578 |
| Queensland University of Technology |
8,747 |
| Southern Illinois University |
8,611 |
| Duke University |
8,599 |
| North Carolina State University |
8,381 |
| University of Texas Health Science Center at San Antonio |
7,555 |
| University of Delaware |
7,471 |
| University of Alabama at Birmingham |
6,517 |
| University of Florida |
6,368 |
| University of Colorado Denver |
6,162 |
| Michigan State University |
6,136 |
| San Jose State University |
5,983 |
| University of Connecticut |
5,934 |
| University of South Australia |
5,879 |
| University of Tasmania |
5,721 |
| University of Colorado System |
5,681 |
| University of Illinois at Chicago |
5,681 |
| Florida Atlantic University |
5,540 |
| Old Dominion University |
5,326 |
| University of Otago |
5,118 |
| University of Akron |
4,798 |
| State University of New York, University at Buffalo |
4,722 |
| Oklahoma State University |
4,645 |
| University of Central Florida |
4,523 |
| University of Hawaii |
4,279 |
| Louisiana State University |
4,219 |
| University Illinois Urbana Campus |
3,927 |
| Medicine, Nursing and Health Sciences - Monash University |
3,895 |
| Flinders University |
3,681 |
| Deakin University |
3,671 |
| Washington State University |
3,526 |
| Cleveland State University |
3,337 |
| DePaul University |
3,300 |
| Hillsborough County Public Schools |
3,270 |
| Suffolk County Community College |
3,190 |
| University of Nevada, Las Vegas |
3,161 |
| University of Arkansas |
3,124 |
| University of Texas Arlington |
3,025 |
| National Research Council Canada |
2,981 |
| Montana State University |
2,873 |
| Indiana University |
2,829 |
| George Mason University |
2,753 |
| Seattle University |
2,650 |
| Griffith University |
2,512 |
| Brigham Young University |
2,493 |
| Boston College |
2,469 |
| The University of Western Australia |
2,363 |
| Marquette University |
2,345 |
| Board Education Prince George County |
2,312 |
| Pratt Institute |
2,223 |
| West Virginia University |
2,212 |
| City College of San Francisco |
2,162 |
| Harrisburg Area Community College |
2,117 |
| Smith College |
2,052 |
| California State University, Sacramento |
2,042 |
| University of Strathclyde |
1,739 |
| Eastern Washington University |
1,718 |
| Georgetown University |
1,690 |
| North Carolina Central University |
1,686 |
| Fairleigh Dickinson University |
1,662 |
| University of Gloucestershire |
1,649 |
| University of Massachusetts |
1,623 |
| Eugene School District 4-j |
1,620 |
| Autodesk, Inc. |
1,603 |
| Swinburne University of Technology |
1,573 |
| Loyola Marymount University |
1,559 |
| Oklahoma City Community College |
1,500 |
| The University of Maryland, Baltimore County |
1,461 |
| Broward Community College |
1,408 |
| University of South Florida |
1,405 |
| United States Department of Education |
1,339 |
| ARAMARK Corporation |
1,308 |
| Emerson College |
1,271 |
| University of Northern Colorado |
1,246 |
| State College Area School District |
1,241 |
| Broward County Public Schools |
1,186 |
| University of North Texas |
1,185 |
| Valencia Community College |
1,152 |
| Coast Community College District |
1,110 |
| University of Winnipeg |
1,099 |
| State of California, Department of Education |
1,052 |
| KinderCare Learning Centers, Inc. |
1,046 |
| University of Puget Sound |
1,004 |
| Western Carolina University |
983 |
| Drexel University |
951 |
| Roger Williams University |
906 |
| Capilano College |
900 |
| Houston Independent School District |
898 |
| George Brown College |
897 |
| Slippery Rock University |
884 |
| Simmons College |
876 |
| George Washington University |
863 |
| Western Oregon University |
844 |
| University of West Florida |
813 |
| Chemeketa Community College |
793 |
| University of Oregon |
771 |
| Cuyahoga Community College |
766 |
| New York Institute of Technology |
765 |
| Burlington County College |
759 |
| University of Arkansas for Medical Sciences |
704 |
| Santa Barbara City College |
691 |
| Clark Atlanta University |
679 |
| University of Phoenix |
675 |
| University of Saskatchewan |
665 |
| Dawson College |
663 |
| Bryant University |
656 |
| Tufts University |
650 |
| LGCA |
630 |
| Coppin State University |
614 |
| American Heart Association |
603 |
| Texas State Tech College |
590 |
| Green River Community College |
588 |
| Yuba College |
572 |
| Linfield College-Portland |
568 |
| Saint Michael's College |
563 |
| The Scripps Research Institute |
561 |
| Southwest Research Institute |
551 |
| Century College |
544 |
| Desert Research Institute |
541 |
| Woods Hole Oceanographic Institute |
541 |
| Florida Department of Education |
514 |
| County College of Morris |
513 |
| Abilene Christian University |
507 |
| Seattle Pacific University |
500 |
| Schoolwires |
493 |
| Kaplan Inc. |
493 |
| Los Angeles Community College District |
479 |
| Ocean County College |
467 |
| Oklahoma City University |
459 |
| Hennepin Technical College |
456 |
| Eastern Iowa Community College District |
446 |
| Eastern Oregon University |
442 |
| Wentworth Institute of Technology |
442 |
| Highline Community College |
442 |
| A.D.A.M., Inc. |
437 |
| Monash University |
426 |
| Western University of Health Sciences |
425 |
| Southern Utah University |
409 |
| Hillsborough Community College |
406 |
| SUNY Upstate Medical University |
403 |
| Region 7 Education Service Center |
403 |
| Milton Academy |
400 |
| North Carolina Agricultural and Technical State University |
396 |
| Australian National University (The) |
394 |
| University of St. Thomas - Minnesota |
390 |
| Family Resource Ctr |
380 |
| Educational Testing Service |
377 |
| Carroll University |
365 |
| Houghton Mifflin Harcourt Company |
360 |
| College of the Redwoods |
354 |
| Concordia University of Portland |
353 |
| Central Oregon Community College |
340 |
| National Academy of Science |
339 |
| Drexel University College of Medicine |
339 |
| Santa Clara University |
338 |
| Educational Service Unit 10 |
335 |
| Sacramento County Office of Education |
335 |
| Park University |
331 |
| Hagerstown Community College |
329 |
| Res-Care, Inc. |
324 |
| Texas State Technical College- Harlingen |
321 |
| ITT Technical Institute |
305 |
| Graceland University |
304 |
| Blackboard Inc. |
301 |
| Harvard University Law School |
299 |
| College of Mount St. Joseph |
287 |
| Baruch College |
281 |
| Cal Arts |
278 |
| Fox Chase Cancer Center |
272 |
| SunGard Higher Education |
268 |
| St Martins College |
268 |
| Raritan Valley Community College |
266 |
| Kettering Medical Center Network |
261 |
| CSC Illinois |
258 |
| Heidelberg College |
253 |
| Three Rivers Community Schools |
251 |
| University of Guelph-Humber |
245 |
| Northeast Community College |
244 |
| Loyola Academy |
241 |
| San Diego Supercomputer Center |
240 |
| Knowledge Learning Corporation |
236 |
| Park County School District 6 |
228 |
| Amherst College |
225 |
| Nelnet, Inc. |
222 |
| Navarro College |
222 |
| Harcourt Education |
219 |
