World

Country Rankings 2023

United States University Rankings 2023

As described in the university ranking section, it is not easy to obtain and standardize data from {{REPLACE_COUNTRY}} countries, {{REPLACE_UNIVERSITY}} universities/ institutions for the country ranking. Therefore, we based our ranking system on the number of meritorious scientists. Four criteria are used to rank the countries. The first one is the number of scientists in the top 2% list. The second criterion is the number of scientists in the top 10%, Top 20%, Top 40%, top 60% and top 80% list. The third one is the number of scientists listed in the AD Scientific Index. In the case of equalities after applying all these three criteria, the world rank of the meritorious scientist of that country is used. Click here to see the Top List of more than 200 countries and regions. Click for individual or institutional registration.

United States

Total 291.652 scientist, 1 country, 2.966 university

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		AD Scientific Index - Country Rankings 2023							Number of World’s Top 2% in Scientists													Number of World’s Top 10% in Scientists
Region Ranking	World Ranking	Country	Best University in Country World Rank / Name		Best Scientist in Country World Rank / Name		Total Universities in Country	Total Scientists in Index	Total number of scientists	Agriculture & Forestry	Arts, Design and Architecture	Business & Management	Economics & Econometrics	Education	Engineering & Technology	History, Philosophy, Theology	Law / Law and Legal Studies	Medical and Health Sciences	Natural Sciences	Social Sciences	Others	Total number of scientists	Agriculture & Forestry	Arts, Design and Architecture	Business & Management	Economics & Econometrics	Education	Engineering & Technology	History, Philosophy, Theology	Law / Law and Legal Studies	Medical and Health Sciences	Natural Sciences	Social Sciences	Others
1	1	United States	1	Harvard University	2	Ronald C Kessler ⁱ	2966	291653 Top 10000	12021	45	2	58	64	17	633	4	13	907	1154	249	8875	48260	681	53	749	682	235	6599	100	161	5832	6859	2067	24242

Table I. Number of scientists in United States top 10.000 according to Country Click for details

#	Country	Country Region Rank	Country World Rank	Scientists in Top 10.000	Total University	Total Scientist
1	United States	1	1	10000	2966	291653

Table II. General Universities in United States top 10.000 Click for details

#	University	Country Rank	Region Rank	World Rank	Country	Sources of Funding	Founded	Scientists in United States Top 10.000	Total Scientists in Index	Ratio (in top 10.000 / Total Scientist)
1	Harvard University	1	1	1	United States	Private	1636	568	7741	0.073
2	Stanford University	2	2	2	United States	Private	1885	369	5135	0.072
3	National Institutes of Health	3	3	4	United States	Public	1887	249	2992	0.083
4	Massachusetts Institute of Technology	4	4	5	United States	Institution	1861	221	4307	0.051
5	University of Michigan	5	5	6	United States	Public	1817	216	2668	0.081
6	University of California Berkeley	6	6	7	United States	Public	1868	235	3050	0.077
7	University of California Los Angeles	7	7	8	United States	Public	1919	220	3674	0.060
8	University of California San Diego	8	8	9	United States	Public	1960	217	2907	0.075
9	Columbia University New York	9	9	10	United States	Private	1754	203	2656	0.076
10	University of Pennsylvania	10	10	12	United States	Private	1740	177	2609	0.068

Table III. Public Universities in United States top 10.000 Click for details

#	University	Country Rank	Region Rank	World Rank	Country	Founded	Scientists in United States Top 10.000	Total Scientists in Index	Ratio (in top 10.000 / Total Scientist)
1	National Institutes of Health	3	3	4	United States	1887	249	2992	0.083
2	University of Michigan	5	5	6	United States	1817	216	2668	0.081
3	University of California Berkeley	6	6	7	United States	1868	235	3050	0.077
4	University of California Los Angeles	7	7	8	United States	1919	220	3674	0.060
5	University of California San Diego	8	8	9	United States	1960	217	2907	0.075
6	University of Minnesota Twin Cities	13	13	17	United States	1851	141	3622	0.039
7	University of California San Francisco	15	16	21	United States	1864	141	1950	0.072
8	University of Wisconsin Madison	16	17	22	United States	1848	124	2122	0.058
9	University of California Davis	17	18	23	United States	1905	111	2488	0.045
10	University of Pittsburgh	19	21	26	United States	1787	122	2182	0.056

Table IV. Private Universities in United States top 10.000 Click for details

#	University	Country Rank	Region Rank	World Rank	Country	Founded	Scientists in United States Top 10.000	Total Scientists in Index	Ratio (in top 10.000 / Total Scientist)
1	Harvard University	1	1	1	United States	1636	568	7741	0.073
2	Stanford University	2	2	2	United States	1885	369	5135	0.072
3	Columbia University New York	9	9	10	United States	1754	203	2656	0.076
4	University of Pennsylvania	10	10	12	United States	1740	177	2609	0.068
5	Duke University	11	11	13	United States	1838	159	2067	0.077
6	Yale University	12	12	14	United States	1701	165	2493	0.066
7	Johns Hopkins University	14	15	20	United States	1876	133	1878	0.071
8	University of Southern California	18	20	25	United States	1880	127	2059	0.062
9	New York University	21	23	29	United States	1831	100	2022	0.049
10	University of Chicago	24	26	36	United States	1891	102	1463	0.070

Table V. Universities Founded After 2010 in United States Top 10.000 Click for details

#	University	Country Rank	Region Rank	World Rank	Country	Sources of Funding	Founded	Scientists in United States Top 10.000	Total Scientists in Index	Ratio (in top 10.000 / Total Scientist)
1	Augusta University	160	181	428	United States	Public	2013	6	251	0.024
2	University of Texas Rio Grande Valley	287	323	941	United States	Public	2013	3	217	0.014
3	Lieber Institute for Brain Development	301	338	991	United States	Institution	2018	4	24	0.167
4	AbbVie Inc	346	387	1295	United States	Company	2013	1	237	0.004
5	OpenAI	368	410	1404	United States	Company	2015	1	75	0.013
6	Oregon Social Learning Centre	377	419	1468	United States	Public	2021	1	8	0.125
7	National Optical-Infrared Astronomy Research Laboratory	378	420	1472	United States	Private	2019	2	11	0.182
8	Florida Hospital	382	425	1498	United States	Hospital	2012	2	14	0.143
9	DuPont Company	434	487	1867	United States	Company	2017	1	94	0.011
10	Purdue University Northwest	525	583	2276	United States	Public	2016	1	49	0.020

Table VI. Universities Founded After 2000 in United States Top 10.000 Click for details

#	University	Country Rank	Region Rank	World Rank	Country	Sources of Funding	Founded	Scientists in United States Top 10.000	Total Scientists in Index	Ratio (in top 10.000 / Total Scientist)
1	University of Colorado Anschutz Medical Campus	140	158	351	United States	Public	2006	11	431	0.026
2	Augusta University	160	181	428	United States	Public	2013	6	251	0.024
3	University of California Merced	217	244	644	United States	Public	2005	5	282	0.018
4	Facebook Inc	224	251	676	United States	Company	2004	5	1141	0.004
5	University of Texas Rio Grande Valley	287	323	941	United States	Public	2013	3	217	0.014
6	Sanofi US	288	324	949	United States	Company	2004	3	210	0.014
7	HHMI Janelia Research Campus	294	330	969	United States	Private	2006	4	174	0.023
8	HudsonAlpha Institute for Biotechnology	300	337	989	United States	Institution	2004	4	26	0.154
9	Lieber Institute for Brain Development	301	338	991	United States	Institution	2018	4	24	0.167
10	RTI Health Solutions	336	377	1230	United States	Company	2001	2	190	0.011

Table VII A. United States Top 10 Productivity i10 Index Click for details

				AD Scientific Index - 2023 United States Table VII A. United States Top 10 Productivity i10 Index				H INDEX			i10 INDEX			CITATION
University	Country	Region	World	Name	Country	University	Subject	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total
1	1	1	3	Zhong Lin Wang	United States	Georgia Institute of Technology	Engineering & Technology / Nanoscience and Nanotechnology nanogenerator \| self-powered sensors/systems \| blue energy \| piezotronics \| piezo-phototronics \|	295	212	0.719	2118	1839	0.868	374337	200655	0.536
1	2	2	8	Lei Layla Li	United States	Duke University	Natural Sciences / Physics Experimental high energy physics \| Particle physics \|	251	171	0.681	1976	1431	0.724	324617	156294	0.481
1	3	3	10	Peter Wittich	United States	Cornell University	experimental particle physics \|	250	158	0.632	1929	1464	0.759	313236	135568	0.433
1	4	4	16	Robert Langer	United States	Massachusetts Institute of Technology	Engineering & Technology / Bioengineering drug delivery \| tissue engineering \| biomaterials \| nanotechnology \| chemistry \|	309	163	0.528	1833	1275	0.696	386037	120305	0.312
1	5	5	17	Wei Wang	United States	Washington University Saint Louis	Medical and Health Sciences / Radiology Neuroradiology \| functional brain mapping \| brain-computer interface \| neuroimaging \| neural engineering \|	148	116	0.784	1828	1523	0.833	126364	82922	0.656
1	6	6	19	Fuquan Wang	United States	University of Wisconsin Madison	Natural Sciences / Physics Particle Physics \|	271	205	0.756	1821	1728	0.949	382303	247039	0.646
1	7	7	20	Stephane Willocq	United States	University of Massachusetts Amherst	Natural Sciences / Physics particle physics \|	263	173	0.658	1808	1275	0.705	379095	169892	0.448
1	8	8	24	James Brau	United States	University of Oregon	Natural Sciences / Physics particle physics \|	269	185	0.688	1768	1313	0.743	383657	194858	0.508
1	9	9	26	Arnold L Rheingold	United States	University of California San Diego	Natural Sciences / Chemical Sciences inorganic chemistry \| crystallography \|	121	46	0.380	1739	481	0.277	90443	17079	0.189
1	10	10	30	Robert W Gardner Jr	United States	University of Chicago	Natural Sciences / Physics High Energy Physics \| Distributed Computing \| Advanced Cyberinfrastructure \|	243	163	0.671	1716	1045	0.609	345157	146758	0.425

Table VII B. United States Top 10 Last 5 Years i10 Index Click for details

				AD Scientific Index - 2023 United States Table VII B. United States Top 10 Last 5 Years i10 Index				H INDEX			i10 INDEX			CITATION
University	Country	Region	World	Name	Country	University	Subject	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total
1	1	1	1	Zhong Lin Wang	United States	Georgia Institute of Technology	Engineering & Technology / Nanoscience and Nanotechnology nanogenerator \| self-powered sensors/systems \| blue energy \| piezotronics \| piezo-phototronics \|	295	212	0.719	2118	1839	0.868	374337	200655	0.536
1	2	2	2	Fuquan Wang	United States	University of Wisconsin Madison	Natural Sciences / Physics Particle Physics \|	271	205	0.756	1821	1728	0.949	382303	247039	0.646
1	3	3	9	Wei Wang	United States	Washington University Saint Louis	Medical and Health Sciences / Radiology Neuroradiology \| functional brain mapping \| brain-computer interface \| neuroimaging \| neural engineering \|	148	116	0.784	1828	1523	0.833	126364	82922	0.656
1	4	4	12	Peter Wittich	United States	Cornell University	experimental particle physics \|	250	158	0.632	1929	1464	0.759	313236	135568	0.433
1	5	5	13	Lei Layla Li	United States	Duke University	Natural Sciences / Physics Experimental high energy physics \| Particle physics \|	251	171	0.681	1976	1431	0.724	324617	156294	0.481
1	6	6	29	James Brau	United States	University of Oregon	Natural Sciences / Physics particle physics \|	269	185	0.688	1768	1313	0.743	383657	194858	0.508
1	7	7	33	Luigi Ferrucci	United States	National Institutes of Health	National Institute on Aging, NIH Geriatrics and Gerontology \|	251	166	0.661	1497	1290	0.862	342835	167123	0.487
1	9	9	36	Robert Langer	United States	Massachusetts Institute of Technology	Engineering & Technology / Bioengineering drug delivery \| tissue engineering \| biomaterials \| nanotechnology \| chemistry \|	309	163	0.528	1833	1275	0.696	386037	120305	0.312
1	8	8	35	Stephane Willocq	United States	University of Massachusetts Amherst	Natural Sciences / Physics particle physics \|	263	173	0.658	1808	1275	0.705	379095	169892	0.448
1	10	10	39	Joseph Haley	United States	Oklahoma State University Stillwater	Natural Sciences / Physics Experimental High Energy Physics \|	230	165	0.717	1533	1262	0.823	252005	136803	0.543

Table VII C. United States Top 10 Last 5 Years H Index Click for details

				AD Scientific Index - 2023 United States Table VII C. United States Top 10 Last 5 Years H Index				H INDEX			i10 INDEX			CITATION
University	Country	Region	World	Name	Country	University	Subject	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total
1	1	1	1	Zhong Lin Wang	United States	Georgia Institute of Technology	Engineering & Technology / Nanoscience and Nanotechnology nanogenerator \| self-powered sensors/systems \| blue energy \| piezotronics \| piezo-phototronics \|	295	212	0.719	2118	1839	0.868	374337	200655	0.536
1	2	2	2	Yi Cui	United States	Stanford University	Engineering & Technology / Nanoscience and Nanotechnology nanotechnology \| energy \| environment \| 2D materials \| nanobio \|	251	209	0.833	767	712	0.928	263064	151016	0.574
1	3	3	3	Eric Lander	United States	Harvard University	Natural Sciences / Mathematical Sciences Biology \| Genomics \| Genetics \| Bioinformatics \| Mathematics \|	305	206	0.675	646	484	0.749	621357	228705	0.368
1	4	4	4	Fuquan Wang	United States	University of Wisconsin Madison	Natural Sciences / Physics Particle Physics \|	271	205	0.756	1821	1728	0.949	382303	247039	0.646
2	5	5	5	Frank B Hu	United States	Harvard University	Medical and Health Sciences / Epidemiology and Public Health	302	200	0.662	1368	1240	0.906	447245	199322	0.446
3	6	7	7	Ronald C Kessler	United States	Harvard University	Medical and Health Sciences / Psychiatry Psychiatric Epidemiology \|	327	194	0.593	1190	944	0.793	511216	176001	0.344
1	7	8	8	Rob Knight	United States	University of California San Diego	Engineering & Technology / Bioengineering microbial diversity \| microbiome \| environmental microbiology \|	222	189	0.851	722	676	0.936	351086	231790	0.660
1	8	9	17	James Brau	United States	University of Oregon	Natural Sciences / Physics particle physics \|	269	185	0.688	1768	1313	0.743	383657	194858	0.508
1	9	10	18	Yury Gogotsi	United States	Drexel University	Engineering & Technology / Nanoscience and Nanotechnology Carbon \| nanomaterials \| energy storage \| supercapacitors \| MXene \|	213	182	0.854	816	691	0.847	219306	155970	0.711
1	10	11	24	Stephane Willocq	United States	University of Massachusetts Amherst	Natural Sciences / Physics particle physics \|	263	173	0.658	1808	1275	0.705	379095	169892	0.448

Table VII D. United States Top 10 Total Citiation Index Click for details

				AD Scientific Index - 2023 United States Table VII D. United States Top 10 Total Citiation Index				H INDEX			i10 INDEX			CITATION
University	Country	Region	World	Name	Country	University	Subject	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total
1	1	3	3	Eric Lander	United States	Harvard University	Natural Sciences / Mathematical Sciences Biology \| Genomics \| Genetics \| Bioinformatics \| Mathematics \|	305	206	0.675	646	484	0.749	621357	228705	0.368
1	2	4	6	Daniel Kahneman	United States	Princeton University	Emeritus)	158	101	0.639	367	258	0.703	515735	167167	0.324
2	3	5	8	Ronald C Kessler	United States	Harvard University	Medical and Health Sciences / Psychiatry Psychiatric Epidemiology \|	327	194	0.593	1190	944	0.793	511216	176001	0.344
3	4	6	9	Michael E Porter	United States	Harvard University	Business & Management / Business Administration Competitive Strategy \| Digital Transformation \| Economic Development \| Health Care \| U.S. Political System \|	183	113	0.617	926	448	0.484	495966	138932	0.280
1	5	7	10	John PA Ioannidis	United States	Stanford University	Medical and Health Sciences / Biostatistics meta-research \| clinical epidemiology \| evidence-based medicine \| research methods \| meta-analysis \|	241	171	0.710	1235	997	0.807	485992	309913	0.638
1	6	8	11	Bert Vogelstein	United States	Johns Hopkins University	Natural Sciences / Molecular Biology & Genetics Cancer \| Biology \|	286	146	0.510	750	546	0.728	481992	101714	0.211
2	7	10	14	Robert Tibshirani	United States	Stanford University	Engineering & Technology / Biomedical Engineering Statistics \| data science \| Machine Learning \|	172	117	0.680	523	411	0.786	456499	184962	0.405
4	8	11	16	Frank B Hu	United States	Harvard University	Medical and Health Sciences / Epidemiology and Public Health	302	200	0.662	1368	1240	0.906	447245	199322	0.446
1	9	12	17	Icek Ajzen	United States	University of Massachusetts Amherst	Attitudes \| Persuasion \| Attitude-Behavior Relation \|	109	83	0.761	226	174	0.770	446595	173629	0.389
1	10	14	19	Edward L Deci	United States	University of Rochester	Australian CatholicSydney; Rochester; Univ Southeast â€¦ self-determination theory \| motivation \| psychology \|	171	131	0.766	335	289	0.863	443661	198702	0.448

Table VII E. United States Top 10 Last 5 Years Citiation Index Click for details

				AD Scientific Index - 2023 United States Table VII E. United States Top 10 Last 5 Years Citiation Index				H INDEX			i10 INDEX			CITATION
University	Country	Region	World	Name	Country	University	Subject	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total	Total	Last 5 year	Last 5 year / total
1	1	3	3	Kaiming He	United States	Facebook Inc	Engineering & Technology / Computer Science Computer Vision\|Machine Learning\|	63	61	0.968	70	70	1.000	324983	312728	0.962
1	2	5	5	John PA Ioannidis	United States	Stanford University	Medical and Health Sciences / Biostatistics meta-research\|clinical epidemiology\|evidence-based medicine\|research methods\|meta-analysis\|	231	165	0.714	1171	975	0.833	436495	294788	0.675
1	3	6	6	Huanzhao Liu	United States	Indiana University Bloomington	Natural Sciences / Physics Experimental Particle Physics\|Collider Physics\|	298	217	0.728	1975	1717	0.869	466677	258562	0.554
1	4	7	8	Ross Girshick	United States	University of California Berkeley	Engineering & Technology / Computer Science computer vision\|machine learning\|	71	70	0.986	100	95	0.950	272154	250570	0.921
1	5	8	9	Richard M Ryan	United States	Abilene Christian University	Social Sciences / Psychology Self-Determination Theory\|psychology\|intrinsic motivation\|education\|organizational behavior\|	212	173	0.816	423	394	0.931	482544	237307	0.492
1	6	9	10	Fuquan Wang	United States	University of Wisconsin Madison	Natural Sciences / Physics Particle Physics\|	249	205	0.823	1681	1610	0.958	307066	228494	0.744
1	7	10	11	Eric Lander	United States	Harvard University	Natural Sciences / Mathematics Biology\|Genomics\|Genetics\|Bioinformatics\|Mathematics\|	298	205	0.688	638	491	0.770	576063	226935	0.394
1	8	11	12	Mohsen Naghavi	United States	University of Washington	University of Washington Burden of Diseases\|Causes Of Death\|Cancer\|Iran\|	160	150	0.938	380	341	0.897	300687	224798	0.748
1	9	12	13	Rob Knight	United States	University of California San Diego	Engineering & Technology / Bioengineering microbial diversity\|microbiome\|environmental microbiology\|	212	183	0.863	667	625	0.937	311830	221464	0.710
2	10	13	15	Ali H. Mokdad	United States	University of Washington	Professor, University of Washington, Institute for Health Metrics and Evaluation Health Metrics\|Population Health\|Disparities\|Global Health\|Risk Factors\|	197	154	0.782	625	509	0.814	319629	211017	0.660