| 1 (2) | National Aeronautics and Space Administration * | USA |  |
| 2 (3) | National Oceanic and Atmospheric Administration | USA | |
| 3 (10) | Harvard University * | USA |  |
| 4 (12) | University of Colorado, Boulder * | USA | |
| 5 (13) | National Center for Atmospheric Research | USA | |
| 6 (15) | Massachusetts Institute of Technology * | USA | |
| 7 (18) | NASA Goddard Space Flight Center | USA | |
| 8 (19) | Pennsylvania State University * | USA | |
| 9 (23) | California Institute of Technology * | USA | |
| 10 (25) | University of Washington * | USA | |
| 11 (28) | Jet Propulsion Laboratory | USA | |
| 12 (30) | Colorado State University, Fort Collins * | USA | |
| 13 (31) | Columbia University * | USA | |
| 14 (38) | University of California, Berkeley * | USA | |
| 15 (41) | Stanford University * | USA | |
| 16 (45) | United States Department of Agriculture | USA | |
| 17 (47) | National Institute of Standards and Technology * | USA | |
| 18 (49) | University of Michigan, Ann Arbor * | USA | |
| 19 (50) | University of California, Davis * | USA | |
| 20 (52) | University of California, San Diego * | USA | |
| 21 (54) | Princeton University | USA | |
| 22 (55) | US Environmental Protection Agency | USA | |
| 23 (57) | University of California, Los Angeles * | USA | |
| 24 (60) | Johns Hopkins University * | USA | |
| 25 (65) | Carnegie Mellon University * | USA | |
| 26 (70) | University of Maryland, College Park * | USA | |
| 27 (72) | University of Wisconsin, Madison * | USA | |
| 28 (73) | Cornell University * | USA | |
| 29 (75) | Georgia Institute of Technology * | USA | |
| 30 (78) | United States Geological Survey | USA | |
| 31 (79) | University of California, Irvine * | USA | |
| 32 (82) | University of Oklahoma * | USA | |
| 33 (84) | University of Illinois at Urbana-Champaign * | USA | |
| 34 (85) | Purdue University | USA | |
| 35 (96) | Lawrence Berkeley National Laboratory * | USA | |
| 36 (97) | Duke University * | USA | |
| 37 (98) | Pacific Northwest National Laboratory | USA | |
| 38 (100) | Texas A&M University, College Station * | USA | |
| 39 (101) | University of Arizona * | USA | |
| 40 (102) | Smithsonian Institution * | USA | |
| 41 (108) | Yale University * | USA | |
| 42 (111) | Science System and Applications, Inc | USA |  |
| 43 (113) | University of Texas, Austin | USA | |
| 44 (114) | University of Maryland, Baltimore | USA | |
| 45 (115) | University of Southern California * | USA | |
| 46 (116) | Iowa State University | USA | |
| 47 (119) | University of Miami * | USA | |
| 48 (120) | North Carolina State University | USA | |
| 49 (125) | NASA Langley Research Center | USA | |
| 50 (129) | Ohio State University, Columbus * | USA | |
| 50 (129) | Arizona State University | USA | |
| 52 (132) | Universities Space Research Association | USA |  |
| 53 (135) | University of North Carolina, Chapel Hill * | USA | |
| 54 (141) | National Renewable Energy Laboratory | USA | |
| 55 (142) | University of Florida * | USA | |
| 56 (145) | University of Chicago * | USA | |
| 57 (146) | University of Iowa * | USA | |
| 58 (147) | University of Massachusetts, Amherst | USA | |
| 59 (148) | Michigan State University | USA | |
| 60 (151) | Oregon State University | USA | |
| 61 (157) | U.S. Department of Energy * | USA | |
| 62 (159) | University of New Hampshire | USA | |
| 63 (160) | Clarkson University | USA | |
| 64 (162) | University of Virginia * | USA | |
| 65 (166) | Kansas State University | USA | |
| 66 (169) | Virginia Polytechnic Institute and State University | USA | |
| 67 (170) | State University of New York, Albany | USA | |
| 68 (174) | College of William and Mary | USA | |
| 69 (175) | Rutgers, The State University of New Jersey | USA | |
| 70 (177) | University of Maryland, Baltimore County | USA | |
| 71 (179) | University of California, Santa Barbara | USA | |
| 72 (180) | NASA Goddard Institute for Space Studies | USA | |
| 73 (185) | Indiana University-Bloomington | USA | |
| 74 (188) | University of Montana, Missoula | USA | |
| 75 (201) | George Mason University | USA | |
| 76 (203) | University of Hawaii, Manoa * | USA | |
| 77 (214) | University of Utah * | USA | |
| 78 (215) | Brookhaven National Laboratory * | USA | |
| 78 (215) | University of Nebraska, Lincoln | USA | |
| 80 (218) | Brown University | USA | |
| 81 (219) | Washington University in Saint Louis * | USA | |
| 81 (219) | University of Minnesota, Twin Cities * | USA | |
| 83 (220) | New York University * | USA | |
| 84 (221) | Woods Hole Oceanographic Institution | USA | |
| 85 (223) | Boston University * | USA | |
| 86 (224) | Utah State University * | USA | |
| 87 (228) | Indiana University-Purdue University Indianapolis | USA | |
| 88 (234) | Oak Ridge National Laboratory | USA | |
| 89 (241) | Florida State University * | USA | |
| 90 (245) | US Naval Research Laboratory | USA | |
| 91 (246) | University of Rochester * | USA | |
| 92 (248) | University of Rochester Medical Center | USA |  |
| 93 (249) | State University of New York, Buffalo | USA | |
| 93 (249) | Mississippi State University | USA | |
| 95 (258) | University of Delaware | USA | |
| 96 (259) | City University of New York * | USA | |
| 97 (260) | University of Central Florida | USA | |
| 98 (261) | Desert Research Institute, Reno | USA | |
| 99 (266) | San Diego State University | USA | |
| 100 (269) | University Corporation for Atmospheric Research | USA | |
| 101 (270) | Harvard-Smithsonian Center for Astrophysics | USA | |
| 101 (270) | Dartmouth College * | USA | |
| 103 (275) | Argonne National Laboratory | USA | |
| 104 (278) | U.S. Army * | USA | |
| 105 (280) | University of Alaska, Fairbanks | USA | |
| 106 (281) | Colorado School of Mines | USA | |
| 107 (283) | University of California, Riverside | USA | |
| 108 (292) | State University of New York, Stony Brook * | USA | |
| 108 (292) | The Catholic University of America | USA | |
| 110 (293) | University of Tennessee, Knoxville * | USA | |
| 111 (294) | NASA Ames Research Center | USA | |
| 112 (296) | Los Alamos National Laboratory * | USA | |
| 112 (296) | University of Wisconsin, Milwaukee | USA | |
| 114 (299) | University of California, Santa Cruz | USA | |
| 115 (301) | Washington State University, Pullman * | USA | |
| 116 (303) | University of Notre Dame | USA | |
| 117 (309) | University of Houston | USA | |
| 118 (310) | University of South Florida System * | USA | |
| 118 (310) | University of North Dakota | USA | |
| 120 (314) | University of Georgia | USA | |
| 121 (320) | Louisiana State University, Baton Rouge | USA | |
| 121 (320) | Bay Area Environmental Research Institute | USA | |
| 123 (325) | University of Alabama, Tuscaloosa | USA | |
| 124 (327) | Northern Arizona University | USA | |
| 125 (330) | University of Connecticut, Storrs * | USA | |
| 126 (331) | Portland State University | USA | |
| 127 (333) | Northeastern University, USA | USA | |
| 128 (338) | Lawrence Livermore National Laboratory * | USA | |
| 129 (340) | Electric Power Research Institute | USA | |
| 130 (342) | University of South Carolina * | USA | |
| 131 (343) | University of Wyoming | USA | |
| 132 (348) | Michigan Technological University | USA | |
| 133 (349) | University of Kansas * | USA | |
| 134 (352) | Auburn University | USA | |
| 135 (353) | University of Alabama, Huntsville | USA | |
| 136 (358) | NASA Stennis Space Center | USA | |
| 137 (359) | University of Idaho | USA | |
| 138 (364) | University of Vermont | USA | |
| 139 (372) | Montana State University, Bozeman | USA | |
| 140 (374) | University of Missouri, Columbia * | USA | |
| 141 (375) | Old Dominion University | USA | |
| 142 (378) | San Jose State University | USA | |
| 143 (379) | U.S. Air Force | USA | |
| 144 (380) | University of Maryland, Center for Environmental Science | USA | |
| 145 (381) | NASA Marshall Space Flight Center | USA | |
| 146 (382) | University of Nevada-Reno | USA | |
| 147 (383) | New Mexico Institute of Mining and Technology * | USA | |
| 148 (385) | Rice University | USA | |
| 149 (386) | University of Southern Mississippi | USA | |
| 150 (390) | University of Arkansas, Fayetteville | USA | |
| 150 (390) | University of Mississippi * | USA | |
| 152 (398) | University of Maine, Orono | USA | |
| 153 (404) | City University of New York, City College | USA | |
| 154 (408) | Naval Postgraduate School | USA | |
| 155 (413) | University of California, Merced | USA | |
| 156 (414) | University of Oregon | USA | |
| 156 (414) | Carnegie Institution for Science * | USA | |
| 158 (417) | Syracuse University | USA | |
| 159 (422) | Kent State University | USA | |
| 160 (427) | Saint Louis University, Saint Louis * | USA | |
| 161 (429) | Morgan State University | USA | |
| 162 (430) | Clemson University | USA | |
| 162 (430) | Texas Tech University | USA | |
| 164 (445) | New Jersey Institute of Technology | USA | |
| 165 (447) | University of Rhode Island | USA | |
| 166 (451) | Embry-Riddle Aeronautical University * | USA | |
| 167 (458) | Southwest Research Institute | USA | |
| 168 (470) | United States Naval Academy | USA | |
| 169 (473) | Appalachian State University | USA | |
| 170 (474) | Texas A&M University, Corpus Christi | USA | |
| 171 (511) | Lockheed Martin Corp * | USA | |
| 172 (515) | University of Massachusetts, Dartmouth | USA | |
| 173 (519) | University of Colorado, Denver * | USA | |
| 174 (523) | University of Colorado, Colorado Springs | USA | |
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