| # | Institution | Articles | Citations | R ARank | R CRank |
|---|
| 1 | National Institute of Environmental Health Sciences | 151 | 6,707 | 8 | 24 |
| 2 | National Toxicology Program | 45 | 2,389 | 3 | 2 |
| 3 | University of California | 36 | 1,637 | 3.7K | 3.0K |
| 4 | RTI International | 32 | 971 | 46 | 87 |
| 5 | University of Rochester | 18 | 868 | 663 | 659 |
| 6 | University of Wisconsin–Madison | 11 | 847 | 3.1K | 1.7K |
| 7 | United States Environmental Protection Agency | 18 | 817 | 104 | 131 |
| 8 | University of Kansas | 15 | 739 | 838 | 597 |
| 9 | Michigan State University | 21 | 701 | 1.0K | 1.2K |
| 10 | Virginia Commonwealth University | 20 | 693 | 439 | 507 |
| 11 | Duke University Hospital | 11 | 642 | 1.1K | 818 |
| 12 | National Center for Toxicological Research | 27 | 615 | 29 | 75 |
| 13 | VCU Medical Center | 22 | 588 | 134 | 204 |
| 14 | Dow Chemical Company | 16 | 498 | 52 | 57 |
| 15 | Eli Lilly and Company | 28 | 494 | 104 | 249 |
| 16 | Oregon State University | 21 | 482 | 505 | 820 |
| 17 | NYU Langone Medical Center | 20 | 474 | 187 | 309 |
| 18 | North Carolina State University | 12 | 473 | 1.3K | 1.1K |
| 19 | University of South Florida | 1 | 467 | 5.8K | 853 |
| 20 | Procter & Gamble | 9 | 449 | 23 | 21 |
| 21 | University of Connecticut | 12 | 447 | 1.1K | 1.0K |
| 22 | University of Arizona | 13 | 437 | 1.6K | 1.6K |
| 23 | Duke University | 3 | 416 | 3.7K | 1.4K |
| 24 | National Institute for Occupational Safety and Health | 15 | 415 | 93 | 113 |
| 25 | National Institutes of Health | 14 | 398 | 1.6K | 1.8K |
| 26 | University of North Carolina | 16 | 394 | 1.0K | 1.5K |
| 27 | Tokyo University of Science | 2 | 347 | 1.5K | 293 |
| 28 | University of North Carolina at Chapel Hill | 7 | 332 | 2.0K | 1.6K |
| 29 | University of Arkansas for Medical Sciences | 10 | 326 | 516 | 522 |
| 30 | University of Texas at Austin | 8 | 319 | 3.7K | 2.9K |
| 31 | New York State Department of Health | 8 | 316 | 212 | 223 |
| 32 | University of Illinois at Urbana–Champaign | 5 | 304 | 2.8K | 1.7K |
| 33 | University of Washington | 10 | 303 | 3.5K | 3.4K |
| 34 | University of Maryland | 7 | 291 | 3.4K | 2.6K |
| 35 | Walter Reed Army Institute of Research | 5 | 254 | 309 | 263 |
| 36 | Purdue University | 15 | 247 | 1.5K | 2.3K |
| 37 | Rutgers University | 8 | 238 | 2.2K | 2.2K |
| 38 | Warner–Lambert | 14 | 231 | 8 | 30 |
| 39 | Vanderbilt University | 9 | 228 | 1.4K | 1.7K |
| 39 | Military Technical Institute Belgrade | 4 | 228 | 9 | 1 |
| 41 | Colorado State University | 3 | 225 | 2.7K | 1.5K |
| 42 | University of California, Davis | 5 | 223 | 1.6K | 1.4K |
| 43 | IIT Research Institute | 11 | 220 | 19 | 32 |
| 44 | Oak Ridge National Laboratory | 11 | 210 | 646 | 946 |
| 45 | Université de Montréal | 13 | 209 | 1.2K | 2.0K |
| 46 | University of Nebraska Medical Center | 13 | 205 | 472 | 796 |
| 47 | Virginia–Maryland College of Veterinary Medicine | 5 | 204 | 110 | 86 |
| 48 | National Institute of Health Sciences | 2 | 203 | 368 | 148 |
| 49 | University of Cincinnati | 5 | 196 | 2.1K | 1.6K |
| 50 | University of Texas Medical Branch | 9 | 195 | 795 | 1.0K |
| 51 | University of Utah | 2 | 190 | 5.1K | 2.4K |
| 52 | University of Georgia | 8 | 189 | 2.0K | 2.1K |
| 52 | Southern Research | 8 | 189 | 36 | 65 |
| 54 | University of Pittsburgh | 11 | 185 | 2.3K | 3.1K |
| 55 | Southern Illinois University Carbondale | 2 | 180 | 2.1K | 696 |
| 56 | R. J. Reynolds Tobacco Company | 3 | 176 | 7 | 4 |
| 57 | Mississippi State University | 3 | 175 | 1.4K | 715 |
| 58 | University of Barcelona | 5 | 174 | 2.7K | 2.0K |
| 59 | Medical College of Wisconsin | 7 | 171 | 943 | 1.0K |
| 60 | Norwegian Defence Research Establishment | 3 | 164 | 67 | 46 |
| 61 | University of Cincinnati Academic Health Center | 7 | 163 | 573 | 756 |
| 62 | Western Regional Research Center | 2 | 161 | 137 | 90 |
| 63 | Upjohn | 10 | 160 | 74 | 139 |
| 64 | Johns Hopkins University | 3 | 151 | 4.7K | 3.2K |
| 65 | Kansas State University | 2 | 149 | 2.5K | 1.2K |
| 66 | University of Missouri | 2 | 147 | 4.9K | 2.5K |
| 67 | Bayer | 4 | 146 | 314 | 333 |
| 67 | University of Idaho | 4 | 146 | 849 | 697 |
| 69 | Battelle Memorial Institute | 6 | 144 | 116 | 137 |
| 69 | University of Kentucky | 5 | 144 | 2.7K | 2.5K |
| 71 | Washington State University | 4 | 137 | 2.3K | 2.0K |
| 72 | Free University | 3 | 133 | 651 | 558 |
| 73 | Agriculture and Agriculture-Food Canada | 1 | 126 | 583 | 317 |
| 74 | University of Southern California | 6 | 120 | 3.3K | 3.7K |
| 75 | Pfizer | 3 | 119 | 530 | 515 |
| 76 | University of Cincinnati Medical Center | 6 | 117 | 226 | 383 |
| 76 | Stanford University Medical Center | 1 | 117 | 1.4K | 734 |
| 78 | University of Michigan | 6 | 115 | 5.1K | 5.5K |
| 79 | Albany Medical Center | 3 | 114 | 596 | 502 |
| 80 | Brookhaven National Laboratory | 4 | 112 | 681 | 740 |
| 81 | Institute for Cancer Prevention | 4 | 111 | 66 | 97 |
| 82 | Syntex | 2 | 108 | 4 | 2 |
| 83 | Karolinska Institute | 8 | 102 | 1.9K | 2.7K |
| 84 | University of California, San Francisco | 3 | 100 | 2.4K | 2.2K |
| 85 | Imperial Chemical Industries | 3 | 99 | 159 | 138 |
| 85 | Pomona College | 1 | 99 | 484 | 182 |
| 87 | University of Pennsylvania | 6 | 97 | 4.0K | 4.7K |
| 87 | University of Minnesota | 4 | 97 | 5.9K | 5.4K |
| 87 | University of Iowa | 2 | 97 | 4.9K | 3.3K |
| 90 | University of Mississippi Medical Center | 5 | 96 | 595 | 811 |
| 91 | University of Rochester Medical Center | 1 | 95 | 2.1K | 1.2K |
| 92 | United States Army Medical Research Institute of Infectious Diseases | 2 | 94 | 158 | 160 |
| 93 | Computer Sciences Corporation | 2 | 93 | 68 | 52 |
| 93 | Virginia Maryland Regional College of Veterinary Medicine | 2 | 93 | 19 | 14 |
| 95 | BASF | 5 | 92 | 243 | 366 |
| 95 | University of Louisiana at Monroe | 4 | 92 | 90 | 97 |
| 97 | Patuxent Wildlife Research Center | 1 | 90 | 147 | 101 |
| 98 | Monsanto | 6 | 89 | 14 | 69 |
| 99 | PPG Industries | 1 | 88 | 31 | 13 |
| 100 | University of Florida | 3 | 86 | 6.3K | 5.1K |
| 101 | National Institute for Environmental Studies | 4 | 85 | 410 | 494 |
| 102 | Dow Corning | 6 | 83 | 22 | 67 |
| 103 | University of Texas at Dallas | 2 | 82 | 1.7K | 1.3K |
| 104 | Lawrence Livermore National Laboratory | 3 | 81 | 915 | 988 |
| 105 | Rockwool International | 1 | 78 | 2 | 4 |
| 105 | University at Buffalo | 3 | 78 | 3.4K | 3.0K |
| 105 | USG Corporation | 1 | 78 | 7 | 4 |
| 105 | DuPont Central Research | 3 | 78 | 48 | 92 |
| 109 | Swedish University of Agricultural Sciences | 2 | 77 | 1.4K | 1.2K |
| 109 | University of Texas Health Science Center at Houston | 1 | 77 | 2.4K | 1.4K |
| 111 | National Institute of Standards and Technology | 1 | 76 | 1.9K | 1.2K |
| 111 | University College London | 1 | 76 | 8.4K | 4.8K |
| 111 | American Chemistry Council | 2 | 76 | 15 | 12 |
| 114 | University of Düsseldorf | 1 | 75 | 1.9K | 1.2K |
| 115 | Novo Nordisk | 1 | 74 | 603 | 413 |
| 115 | Unilever | 1 | 74 | 25 | 23 |
| 117 | Huntingdon Life Sciences | 1 | 70 | 33 | 25 |
| 117 | American Cyanamid | 3 | 70 | 124 | 148 |
| 119 | Los Alamos National Laboratory | 2 | 69 | 1.5K | 1.4K |
| 119 | SRI International | 2 | 69 | 642 | 678 |
| 119 | Kyushu University | 1 | 69 | 5.6K | 3.1K |
| 122 | BP | 3 | 68 | 53 | 93 |
| 123 | Ludwig Maximilian University of Munich | 4 | 66 | 3.0K | 3.5K |
| 124 | University of Groningen | 1 | 65 | 5.9K | 3.7K |
| 124 | University of Arkansas | 1 | 65 | 3.5K | 1.7K |
| 126 | Ohio Northern University | 1 | 64 | 146 | 57 |
| 127 | University of Birmingham | 3 | 63 | 4.5K | 4.3K |
| 127 | Argonne National Laboratory | 2 | 63 | 1.2K | 1.2K |
| 129 | Chunghwa Telecom | 1 | 62 | 6 | 1 |
| 129 | City of Hope National Medical Center | 2 | 62 | 611 | 636 |
| 129 | University of Nevada, Reno | 1 | 62 | 4.3K | 2.3K |
| 132 | Uniformed Services University of the Health Sciences | 4 | 61 | 769 | 1.1K |
| 133 | University of Saskatchewan | 5 | 60 | 1.8K | 2.8K |
| 134 | University of Würzburg | 2 | 59 | 2.6K | 2.4K |
| 134 | University of Alabama | 2 | 59 | 3.7K | 2.9K |
| 136 | Rovira i Virgili University | 1 | 57 | 434 | 335 |
| 137 | Netherlands National Institute for Public Health and the Environment | 1 | 56 | 124 | 143 |
| 137 | Vrije Universiteit Amsterdam | 1 | 56 | 4.8K | 3.2K |
| 137 | University of Tennessee | 6 | 56 | 2.2K | 3.8K |
| 137 | University of California, San Diego | 1 | 56 | 5.5K | 3.9K |
| 141 | Wayne State University | 2 | 54 | 3.8K | 3.2K |
| 142 | MRC Toxicology Unit | 2 | 53 | 28 | 56 |
| 143 | Arkansas Tech University | 1 | 52 | 82 | 43 |
| 143 | Louisiana State University | 1 | 52 | 5.3K | 3.3K |
| 145 | Centers for Disease Control and Prevention | 2 | 51 | 494 | 613 |
| 146 | Tufts University | 2 | 49 | 2.5K | 2.5K |
| 146 | Umeå University | 1 | 49 | 3.9K | 2.8K |
| 148 | Aston University | 2 | 48 | 1.3K | 1.3K |
| 148 | Naval Medical Research Center | 2 | 48 | 249 | 333 |
| 150 | Medical University of South Carolina | 1 | 47 | 3.3K | 2.4K |
| 151 | Aarhus University | 2 | 46 | 4.5K | 4.2K |
| 152 | University of Amsterdam | 3 | 45 | 4.3K | 4.9K |
| 153 | University of Guelph | 4 | 44 | 1.8K | 2.8K |
| 153 | University of Texas System | 1 | 44 | 2.4K | 1.8K |
| 153 | Asahikawa Medical College | 1 | 44 | 550 | 412 |
| 156 | University of Ottawa | 2 | 43 | 4.8K | 4.4K |
| 157 | The Rockefeller University | 1 | 42 | 1.4K | 1.3K |
| 158 | Iowa State University | 2 | 41 | 4.0K | 3.9K |
| 158 | Ontario Veterinary College | 3 | 41 | 212 | 337 |
| 158 | Wright-Patterson Air Force Base | 2 | 41 | 441 | 490 |
| 161 | University of Surrey | 2 | 40 | 2.5K | 2.7K |
| 162 | University of Queensland | 2 | 39 | 6.8K | 6.4K |
| 162 | Occidental Petroleum | 1 | 39 | 32 | 14 |
| 162 | Princess Alexandra Hospital | 2 | 39 | 665 | 834 |
| 165 | Stockholm University | 1 | 38 | 4.3K | 3.2K |
| 165 | Université catholique de Louvain | 1 | 38 | 4.5K | 3.5K |
| 167 | University of Alberta | 1 | 37 | 9.1K | 6.6K |
| 167 | University of Wisconsin School of Medicine and Public Health | 1 | 37 | 991 | 938 |
| 167 | Oklahoma State University | 1 | 37 | 3.6K | 2.6K |
| 170 | University of New Hampshire | 1 | 36 | 2.4K | 1.8K |
| 170 | Ohio State University | 2 | 36 | 7.6K | 7.0K |
| 172 | University of Genoa | 2 | 35 | 3.1K | 3.2K |
| 172 | Nara Medical University | 2 | 35 | 835 | 827 |
| 174 | New York University | 1 | 34 | 6.1K | 4.4K |
| 174 | Uppsala University | 3 | 34 | 4.0K | 4.9K |
| 176 | University of New Mexico | 2 | 33 | 3.3K | 3.7K |
| 176 | Istituto Superiore di Sanità | 1 | 33 | 1.6K | 1.4K |
| 178 | Ottawa Civic Hospital | 1 | 32 | 214 | 223 |
| 179 | Venezuelan Institute for Scientific Research | 1 | 31 | 539 | 434 |
| 180 | University of Helsinki | 1 | 30 | 6.6K | 5.2K |
| 180 | Indiana University | 1 | 30 | 6.5K | 5.0K |
| 182 | St. Marianna University School of Medicine | 1 | 29 | 933 | 733 |
| 183 | Massachusetts Institute of Technology | 3 | 28 | 3.5K | 5.0K |
| 183 | University of Wisconsin–Milwaukee | 1 | 28 | 3.1K | 2.6K |
| 183 | Southern Illinois University School of Medicine | 1 | 28 | 760 | 754 |
| 183 | National Institute of Occupational Health | 1 | 28 | 357 | 383 |
| 183 | National Heart, Lung, and Blood Institute | 1 | 28 | 1.2K | 1.1K |
| 188 | Utrecht University | 1 | 27 | 6.2K | 5.4K |
| 188 | German Cancer Research Center | 1 | 27 | 873 | 964 |
| 188 | Carleton University | 1 | 27 | 3.5K | 2.8K |
| 188 | Thomas Jefferson University | 4 | 27 | 1.5K | 2.6K |
| 188 | University of Illinois College of Medicine | 2 | 27 | 650 | 953 |
| 188 | Zoological Society of London | 1 | 27 | 252 | 297 |
| 194 | University of Toronto | 1 | 25 | 11.7K | 9.3K |
| 194 | Pennsylvania State University | 1 | 25 | 9.3K | 7.6K |
| 196 | University of Louisville | 4 | 24 | 1.7K | 3.5K |
| 196 | Chiba University | 1 | 24 | 3.4K | 2.7K |
| 198 | Tel Aviv University | 1 | 23 | 7.0K | 5.9K |
| 198 | Johns Hopkins Bloomberg School of Public Health | 1 | 23 | 2.1K | 2.1K |
| 198 | Wingate Institute | 1 | 23 | 86 | 105 |
| 201 | University of Stirling | 1 | 22 | 2.0K | 2.0K |
| 201 | Northeast Ohio Medical University | 1 | 22 | 596 | 636 |
| 203 | Brown University | 1 | 21 | 4.8K | 4.5K |
| 203 | Leiden University | 2 | 21 | 3.1K | 3.9K |
| 203 | Mobil | 1 | 21 | 32 | 49 |
| 206 | Texas A&M University | 1 | 20 | 841 | 1.2K |
| 206 | Case Western Reserve University | 2 | 20 | 4.1K | 5.1K |
| 208 | Baylor College of Medicine | 1 | 19 | 4.2K | 3.9K |
| 208 | Hennepin County Medical Center | 1 | 19 | 352 | 459 |
| 210 | University of Padua | 1 | 18 | 6.6K | 6.2K |
| 210 | Ghent University | 1 | 18 | 6.5K | 6.2K |
| 210 | State University of New York | 2 | 18 | 4.9K | 6.1K |
| 210 | Allied Corporation | 2 | 18 | 70 | 109 |
| 210 | Alpert Medical School | 1 | 18 | 1.4K | 1.5K |
| 210 | Montana State University Billings | 1 | 18 | 69 | 78 |
| 216 | University of Rhode Island | 1 | 17 | 2.4K | 2.6K |
| 216 | (former) Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement | 1 | 17 | 2.4K | 2.7K |
| 216 | Odense University | 1 | 17 | 655 | 839 |
| 216 | Olin Corporation | 1 | 17 | 38 | 35 |
| 220 | Freie Universität Berlin | 1 | 16 | 4.4K | 4.3K |
| 220 | California Institute of Technology | 2 | 16 | 2.3K | 3.2K |
| 220 | Schering-Plough | 2 | 16 | 94 | 212 |
| 220 | Auburn University | 1 | 16 | 4.0K | 3.8K |
| 220 | University of Illinois at Chicago | 1 | 16 | 5.8K | 5.8K |
| 220 | University of Shizuoka | 1 | 16 | 757 | 809 |
| 220 | University of Ghana | 1 | 16 | 1.6K | 1.5K |
| 220 | Setsunan University | 1 | 16 | 351 | 316 |
| 228 | Northwestern University | 1 | 15 | 7.0K | 6.9K |
| 228 | Tokyo Medical and Dental University | 1 | 15 | 2.3K | 2.2K |
| 228 | New York State College of Veterinary Medicine | 1 | 15 | 170 | 246 |
| 231 | Dartmouth College | 1 | 14 | 2.6K | 3.0K |
| 231 | Loyola University | 1 | 14 | 983 | 1.2K |
| 231 | Utah State University | 2 | 14 | 2.0K | 3.2K |
| 231 | New Cross Hospital | 1 | 14 | 235 | 259 |
| 231 | Loyola University Medical Center | 1 | 14 | 1.1K | 1.2K |
| 231 | University of Occupational and Environmental Health Japan | 1 | 14 | 1.1K | 1.2K |
| 237 | Lyndon B. Johnson Space Center | 2 | 13 | 86 | 262 |
| 237 | United States Forest Service | 1 | 13 | 836 | 1.0K |
| 237 | Kresge Hearing Research Institute | 2 | 13 | 65 | 190 |
| 237 | Nebraska Medical Center | 1 | 13 | 575 | 866 |
| 241 | University of Bergen | 1 | 12 | 4.1K | 4.5K |
| 241 | Illinois Institute of Technology | 1 | 12 | 1.6K | 1.9K |
| 241 | Takeda Pharmaceutical Company | 2 | 12 | 188 | 472 |
| 241 | University of Vermont | 1 | 12 | 3.5K | 3.9K |
| 241 | Central Food Technological Research Institute | 1 | 12 | 279 | 390 |
| 246 | Lorillard Tobacco Company | 1 | 11 | 10 | 15 |
| 246 | MRIGlobal | 1 | 11 | 150 | 192 |
| 248 | University of Medicine and Dentistry of New Jersey | 1 | 10 | 848 | 1.3K |
| 249 | University of Tokyo | 1 | 9 | 8.5K | 8.4K |
| 249 | Seoul National University | 1 | 9 | 5.8K | 6.2K |
| 249 | Carnegie Mellon University | 1 | 9 | 3.7K | 4.4K |
| 249 | Karolinska University Hospital | 1 | 9 | 2.4K | 2.9K |
| 249 | Primate Research Institute | 1 | 9 | 64 | 105 |
| 249 | Holloman Air Force Base | 1 | 9 | 33 | 61 |
| 255 | University of Sydney | 1 | 8 | 9.3K | 9.9K |
| 255 | FMC Corporation | 2 | 8 | 47 | 136 |
| 255 | University of Toledo Medical Center | 1 | 8 | 727 | 1.0K |
| 258 | Nagoya City University | 1 | 7 | 1.1K | 1.5K |
| 258 | East Tennessee State University | 1 | 7 | 1.3K | 1.8K |
| 258 | Astra AB | 1 | 7 | 5 | 19 |
| 258 | United States National Library of Medicine | 2 | 7 | 283 | 634 |
| 262 | West Virginia University | 1 | 6 | 4.3K | 5.4K |
| 262 | McGill University | 3 | 6 | 5.7K | 9.9K |
| 264 | General Motors | 1 | 5 | 342 | 533 |
| 265 | Georgetown University | 1 | 4 | 3.5K | 4.7K |
| 265 | Unocal Corporation | 1 | 4 | 36 | 87 |
| 265 | Université du Québec à Montréal | 1 | 4 | 2.3K | 3.5K |
| 265 | Michigan Medicine | 1 | 4 | 3.0K | 3.8K |
| 269 | National Academy of Sciences | 1 | 3 | 1.2K | 1.7K |
| 269 | University of British Columbia | 1 | 3 | 10.0K | 11.9K |
| 269 | Wellcome Research Laboratories | 1 | 3 | 155 | 306 |
| 272 | Altana | 1 | 2 | 49 | 130 |
| 272 | Clorox | 1 | 2 | 4 | 17 |
| 272 | Yamaguchi University | 1 | 2 | 1.8K | 2.6K |
| 272 | Lion Corporation | 1 | 2 | 65 | 138 |
| 272 | Wright State University | 1 | 2 | 1.9K | 3.3K |
| 272 | Kitasato University | 1 | 2 | 1.6K | 2.3K |
| 278 | Sterling Drug | 1 | 1 | 4 | 11 |
