2018 tables: Institutions - physical sciences - academic

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The 2018 tables are based on Nature Index data from 1 January 2017 to 31 December 2017.

2017	Institution	Share 2016	Share 2017	Count 2017	Change in adjusted Share^* 2016–2017 (%)
1	The University of Tokyo (UTokyo), Japan	167.80	217.70	621	28.2%
2	Massachusetts Institute of Technology (MIT), United States of America (USA)	237.47	214.16	670	-10.9%
3	Stanford University, United States of America (USA)	223.28	210.45	548	-6.9%
4	Harvard University, United States of America (USA)	182.24	188.11	559	2.0%
5	University of Cambridge, United Kingdom (UK)	162.40	145.72	507	-11.3%
6	Tsinghua University, China	136.19	145.34	600	5.5%
7	Swiss Federal Institute of Technology Zurich (ETH Zurich), Switzerland	124.32	144.79	397	15.1%
8	Peking University (PKU), China	141.83	141.24	587	-1.6%
9	University of California, Berkeley (UC Berkeley), United States of America (USA)	124.12	131.36	508	4.6%
10	University of Science and Technology of China (USTC), China	108.24	122.94	426	12.2%
11	University of Oxford, United Kingdom (UK)	126.98	116.49	445	-9.3%
12	Nanjing University (NJU), China	121.33	115.11	373	-6.3%
13	Nanyang Technological University (NTU), Singapore	98.26	113.97	268	14.6%
14	University of California, Los Angeles (UCLA), United States of America (USA)	92.52	112.47	343	20.1%
15	University of California, Santa Barbara (UCSB), United States of America (USA)	98.56	108.69	358	9.0%
16	Princeton University, United States of America (USA)	109.10	104.40	336	-5.4%
17	University of Maryland, College Park (UMCP), United States of America (USA)	90.77	103.72	413	12.9%
18	California Institute of Technology (Caltech), United States of America (USA)	103.95	103.22	383	-1.9%
19	National University of Singapore (NUS), Singapore	97.01	99.84	236	1.7%
20	Swiss Federal Institute of Technology Lausanne (EPFL), Switzerland	101.08	91.36	285	-10.7%
21	Korea Advanced Institute of Science and Technology (KAIST), South Korea	90.40	89.26	191	-2.4%
22	Northwestern University (NU), United States of America (USA)	95.26	87.56	309	-9.2%
23	University of Illinois at Urbana-Champaign (UIUC), United States of America (USA)	98.45	83.74	284	-16.0%
24	University of Michigan (U-M), United States of America (USA)	91.56	80.81	302	-12.8%
25	Zhejiang University (ZJU), China	63.75	79.25	237	22.8%
26	University of California, San Diego (UC San Diego), United States of America (USA)	71.04	79.09	257	10.0%
27	The University of Texas at Austin (UT Austin), United States of America (USA)	84.79	77.73	276	-9.4%
28	Imperial College London (ICL), United Kingdom (UK)	78.89	76.44	365	-4.3%
29	Soochow University, China	73.78	75.75	150	1.5%
30	University of Chinese Academy of Sciences (UCAS), China	41.00	74.77	498	80.2%
31	The Pennsylvania State University (Penn State), United States of America (USA)	79.67	74.61	222	-7.4%
32	Kyoto University, Japan	70.44	74.31	245	4.2%
33	Weizmann Institute of Science (WIS), Israel	67.12	72.15	225	6.2%
34	Seoul National University (SNU), South Korea	70.74	71.25	261	-0.5%
35	The University of Chicago (UChicago), United States of America (USA)	54.64	70.38	285	27.3%
36	University of Pennsylvania (Penn), United States of America (USA)	66.39	64.78	205	-3.6%
37	Columbia University in the City of New York (CU), United States of America (USA)	69.59	64.47	274	-8.5%
38	Georgia Institute of Technology (Georgia Tech), United States of America (USA)	65.11	62.23	195	-5.5%
39	Fudan University, China	71.81	61.46	175	-15.4%
40	Cornell University, United States of America (USA)	71.00	59.25	222	-17.5%
41	Rice University, United States of America (USA)	60.18	58.81	225	-3.4%
42	Tohoku University, Japan	78.63	58.69	193	-26.2%
43	Karlsruhe Institute of Technology (KIT), Germany	63.83	58.44	233	-9.5%
44	Purdue University, United States of America (USA)	59.69	58.15	217	-3.7%
45	University of Wisconsin-Madison (UW-Madison), United States of America (USA)	67.23	56.75	288	-16.6%
46	University of Colorado Boulder (CU-Boulder), United States of America (USA)	58.44	55.93	260	-5.4%
47	University of Toronto (U of T), Canada	58.10	55.84	206	-5.0%
48	Shanghai Jiao Tong University (SJTU), China	48.81	54.78	275	10.9%
49	Technical University of Munich (TUM), Germany	62.78	54.22	201	-14.7%
50	Huazhong University of Science and Technology (HUST), China	35.88	52.88	132	45.6%
51	Yale University, United States of America (USA)	69.46	52.02	249	-26.0%
52	Xi'an Jiaotong University (XJTU), China	48.24	51.19	117	4.9%
53	Sorbonne University, France	53.54	50.77	557	-6.3%
54	University of Washington (UW), United States of America (USA)	47.72	50.51	263	4.6%
55	Johannes Gutenberg University Mainz (JGU), Germany	47.83	49.96	228	3.2%
56	Homi Bhabha National Institute (HBNI), India	44.39	48.54	174	8.1%
57	University of Würzburg (JMU), Germany	38.20	47.59	172	23.1%
58	Ludwig Maximilians University of Munich (LMU), Germany	55.84	47.34	230	-16.2%
59	King Abdullah University of Science and Technology (KAUST), Saudi Arabia	47.94	47.23	94	-2.7%
60	University of Minnesota (UMN), United States of America (USA)	57.13	46.77	205	-19.1%
61	University of Hamburg (UHH), Germany	36.31	45.83	220	24.7%
62	University of Copenhagen (UCPH), Denmark	46.50	45.67	235	-2.9%
63	Sungkyunkwan University (SKKU), South Korea	48.56	45.02	182	-8.4%
64	Durham University, United Kingdom (UK)	57.64	44.80	120	-23.2%
65	The Hong Kong University of Science and Technology (HKUST), China	46.81	44.67	160	-5.7%
66	Tokyo Institute of Technology (Tokyo Tech), Japan	39.53	43.89	179	9.7%
67	Pohang University of Science and Technology (POSTECH), South Korea	52.24	43.32	112	-18.1%
68	Dresden University of Technology (TU Dresden), Germany	50.21	43.05	202	-15.3%
69	Ulsan National Institute of Science and Technology (UNIST), South Korea	31.47	42.95	88	34.9%
70	University of Southampton (Soton), United Kingdom (UK)	52.76	42.82	185	-19.8%
71	UCL, United Kingdom (UK)	46.58	42.57	221	-9.7%
72	Delft University of Technology (TU Delft), Netherlands	44.04	42.30	103	-5.1%
73	Tel Aviv University (TAU), Israel	37.19	41.72	175	10.8%
74	North Carolina State University (NCSU), United States of America (USA)	31.57	41.59	109	30.2%
75	University of Geneva (UNIGE), Switzerland	43.50	40.72	194	-7.5%
76	The University of Manchester (UoM), United Kingdom (UK)	33.94	39.72	248	15.7%
77	Lund University (LU), Sweden	33.66	39.71	165	16.6%
78	Hebrew University of Jerusalem (HUJI), Israel	34.97	39.64	94	12.0%
79	Texas A&M University (TAMU), United States of America (USA)	27.33	39.55	200	43.0%
80	Wuhan University (WHU), China	32.98	39.49	132	18.3%
81	Technion-Israel Institute of Technology (IIT), Israel	56.85	39.42	151	-31.5%
82	State University of New York at Stony Brook (SUNY Stony Brook), United States of America (USA)	28.60	39.03	192	34.8%
83	Vienna University of Technology (TU Wien), Austria	32.75	38.70	143	16.8%
84	The Ohio State University (OSU), United States of America (USA)	43.55	37.74	265	-14.4%
85	Osaka University, Japan	56.39	37.65	180	-34.0%
86	University of Amsterdam (UvA), Netherlands	33.71	37.35	313	9.5%
87	Utrecht University (UU), Netherlands	30.30	36.79	291	20.0%
88	Beihang University (BUAA), China	39.26	36.34	187	-8.5%
89	Johns Hopkins University (JHU), United States of America (USA)	38.28	36.15	207	-6.7%
90	Jilin University (JLU), China	25.51	36.01	88	39.5%
91	Heidelberg University (Uni Heidelberg), Germany	39.62	35.67	246	-11.0%
92	University of Paris-Sud (UPSud), France	41.48	35.20	393	-16.2%
93	Indian Institute of Science (IISc), India	32.75	34.71	90	4.7%
94	Harbin Institute of Technology (HIT), China	37.68	34.66	73	-9.1%
95	Arizona State University (ASU), United States of America (USA)	29.34	34.42	139	15.9%
96	National Taiwan University (NTU), Taiwan	37.27	34.11	176	-9.6%
97	Leiden University, Netherlands	31.04	33.37	116	6.3%
98	University of Southern California (USC), United States of America (USA)	32.12	33.28	66	2.4%
99	University of Groningen (RUG), Netherlands	31.33	32.99	154	4.1%
100	Sun Yat-sen University (SYSU), China	24.93	32.94	119	30.6%

Each year, the Nature Index publishes tables based on counts of high-quality research outputs in the previous calendar year. Users please note:

The data behind the tables are based on a relatively small proportion of total research papers, they cover the natural sciences only and outputs are non-normalized (that is, they don’t reflect the size of the country or institution, or its overall research output).
The Nature Index is one indicator of institutional research performance. The metrics of Count and Share used to order Nature Index listings are based on an institution’s or country’s publication output in 82 natural-science journals, selected on reputation by an independent panel of leading scientists in their fields.
Nature Index recognizes that many other factors must be taken into account when considering research quality and institutional performance; Nature Index metrics alone should not be used to assess institutions or individuals.
Nature Index data and methods are transparent and available under a creative commons licence at natureindex.com.

The Nature Index database undergoes regular updating, corrections, adjustment of institutional hierarchies, and removal of retracted papers and thus the live website can differ from the frozen annual tables.

^*The change in adjusted Share accounts for the small annual variation in the total number of articles in Nature Index journals. Share values have been adjusted to 2020 levels to calculate the percentage change. For more information on the adjustment, please see the Adjusted metric explainer.

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