| 1 (15) | Pennsylvania State University * | USA |  |
| 2 (28) | Smithsonian Institution * | USA |  |
| 3 (30) | University of Washington * | USA | |
| 4 (42) | National Center for Atmospheric Research | USA | |
| 5 (44) | National Aeronautics and Space Administration * | USA | |
| 6 (45) | United States Department of Agriculture | USA | |
| 7 (57) | Harvard University * | USA | |
| 8 (58) | Massachusetts Institute of Technology * | USA | |
| 9 (66) | United States Geological Survey | USA | |
| 10 (67) | Louisiana State University, Baton Rouge | USA | |
| 11 (71) | University of Utah * | USA | |
| 12 (75) | Smithsonian National Museum of Natural History | USA | |
| 13 (87) | University of Michigan, Ann Arbor * | USA | |
| 14 (88) | University of California, Los Angeles * | USA | |
| 15 (90) | Columbia University * | USA | |
| 16 (91) | University of Kansas * | USA | |
| 17 (92) | Jet Propulsion Laboratory | USA | |
| 18 (94) | University of Arizona * | USA | |
| 19 (95) | Stanford University * | USA | |
| 20 (110) | Cornell University * | USA | |
| 21 (122) | University of Texas, Austin | USA | |
| 22 (124) | University of Florida * | USA | |
| 23 (137) | California Institute of Technology * | USA | |
| 24 (141) | Yale University * | USA | |
| 25 (142) | University of Colorado, Boulder * | USA | |
| 26 (154) | Brown University | USA | |
| 27 (162) | University of California, Berkeley * | USA | |
| 28 (164) | National Oceanic and Atmospheric Administration | USA | |
| 29 (171) | University of California, Davis * | USA | |
| 30 (172) | University of Wisconsin, Madison * | USA | |
| 31 (174) | Oregon State University | USA | |
| 32 (175) | Texas A&M University, College Station * | USA | |
| 33 (180) | University of California, San Diego * | USA | |
| 34 (185) | American Museum of Natural History | USA | |
| 35 (189) | University of California, Santa Cruz | USA | |
| 36 (192) | University of New Hampshire | USA | |
| 37 (197) | University of Illinois at Urbana-Champaign * | USA | |
| 38 (198) | University of Massachusetts, Amherst | USA | |
| 39 (201) | University of Minnesota, Twin Cities * | USA | |
| 40 (208) | State University of New York, Buffalo | USA | |
| 41 (210) | Johns Hopkins University * | USA | |
| 42 (214) | Northwestern University, Evanston * | USA | |
| 42 (214) | University of Southern California * | USA | |
| 44 (223) | Boston University * | USA | |
| 45 (225) | University of Maryland, College Park * | USA | |
| 46 (226) | University of Alaska, Fairbanks | USA | |
| 47 (229) | University of California, Santa Barbara | USA | |
| 48 (239) | Ohio State University, Columbus * | USA | |
| 49 (241) | University of Pennsylvania * | USA | |
| 50 (251) | University of New Mexico * | USA | |
| 51 (261) | Northern Arizona University | USA | |
| 52 (268) | Rutgers, The State University of New Jersey | USA | |
| 53 (269) | University of Connecticut, Storrs * | USA | |
| 54 (274) | Field Museum Natural History | USA | |
| 55 (278) | Purdue University | USA | |
| 56 (283) | University of Wyoming | USA | |
| 57 (284) | City University of New York * | USA | |
| 58 (290) | Duke University * | USA | |
| 59 (301) | Arizona State University * | USA | |
| 60 (303) | University of Missouri, Columbia * | USA | |
| 61 (311) | University of Chicago * | USA | |
| 62 (314) | Virginia Polytechnic Institute and State University * | USA | |
| 63 (323) | Natural History Museum of los Angeles County | USA | |
| 64 (378) | Colorado State University, Fort Collins * | USA | |
| 65 (389) | University of Delaware | USA | |
| 66 (392) | Montana State University, Bozeman | USA | |
| 67 (399) | University of Miami * | USA | |
| 68 (405) | University of Nebraska, Lincoln | USA | |
| 69 (407) | University of Nevada-Reno | USA | |
| 70 (414) | University of Cincinnati * | USA | |
| 71 (425) | State University of New York, Stony Brook * | USA | |
| 72 (426) | University of Iowa * | USA | |
| 73 (447) | University of Tennessee, Knoxville * | USA | |
| 74 (478) | University of South Florida System * | USA | |
| 75 (488) | Rice University | USA | |
| 76 (507) | NASA Goddard Space Flight Center | USA | |
| 77 (508) | Appalachian State University | USA | |
| 78 (522) | Loma Linda University * | USA | |
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