Top 50 overall collaborators / physical sciences

Tables are calculated based on average collaboration score or bilateral collaboration score in 2015. The first measure is the average of the fractional count (FC) for collaborative papers of the named institution and all its partners. The bilateral collaboration score sums the FCs derived from collaborative papers of the two collaborating institutions*.

Rank Institution Country Average total CS # collaboration partners 2015
1 French National Centre for Scientific Research (CNRS) France 3.399 1,687
2 National Institute for Astrophysics (INAF) Italy 3.082  848
3 European Organization for Nuclear Research (CERN) Switzerland 2.878  681
4 Max Planck Society Germany 2.753 1,519
5 Chinese Academy of Sciences (CAS) China 1.981 1,213
6 National Aeronautics and Space Administration (NASA) United States of America (USA) 1.862  939
7 Spanish National Research Council (CSIC) Spain 1.802 1,203
8 European Southern Observatory (ESO) Germany 1.788  690
9 Harvard University United States of America (USA) 1.783 1,130
10 Helmholtz Association of German Research Centres Germany 1.735 1,131
11 California Institute of Technology (Caltech) United States of America (USA) 1.656 1,143
12 Smithsonian Institution United States of America (USA) 1.614  751
13 University of Cambridge United Kingdom (UK) 1.546 1,031
14 Space Telescope Science Institute (STScI) United States of America (USA) 1.543  526
15 Stanford University United States of America (USA) 1.541 1,035
16 University of California Berkeley (UC Berkeley) United States of America (USA) 1.469 1,049
17 The University of Tokyo (UTokyo) Japan  1.43  996
18 Durham University United Kingdom (UK) 1.371  446
19 Atomic Energy and Alternative Energies Commission (CEA) France 1.354 1,205
20 Pierre and Marie Curie University (UPMC) - Paris 6 France 1.314 1,161
21 Paris Diderot University (Paris 7) France 1.264 1,087
22 National Research Council (CNR) Italy 1.233  445
23 University of Oxford United Kingdom (UK) 1.226 1,014
24 The University of Arizona (Arizona) United States of America (USA) 1.214  831
25 Massachusetts Institute of Technology (MIT) United States of America (USA) 1.202 1,092
26 Russian Academy of Sciences (RAS) Russia  1.19 1,168
27 National Institutes of Natural Sciences (NINS) Japan 1.184  541
28 University of Hawai'i at Manoa (UH Mānoa) United States of America (USA) 1.165  733
29 University of La Laguna (ULL) Spain 1.154  719
30 Leiden University Netherlands 1.154  654
31 University of Bonn (Uni Bonn) Germany 1.146  774
32 Lawrence Berkeley National Laboratory (LBNL) United States of America (USA) 1.144  867
33 University of Michigan (U-M) United States of America (USA) 1.138  873
34 University of Chile Chile 1.112  529
35 National Science Foundation (NSF) United States of America (USA) 1.109  546
36 University of Bologna (UNIBO) Italy 1.104  799
37 Fudan University China 1.102  178
38 University of California Santa Cruz (UCSC) United States of America (USA) 1.082  770
39 Australian National University (ANU) Australia 1.074  583
40 FiberHome Technologies Group China 1.063  29
41 China Shipbuilding Industry Corporation (CSIC) China 1.061  30
42 Heidelberg University (Uni Heidelberg) Germany 1.051  947
43 University of Padova (UNIPD) Italy 1.042  901
44 University of Geneva (UNIGE) Switzerland 1.037  724
45 National Research Center "Kurchatov Institute" (NRC "Kurchatov Institute") Russia 1.034  670
46 Swinburne University of Technology Australia 1.033  440
47 University of Kaiserslautern (TU Kaiserslautern) Germany 1.033  50
48 Leibniz Association Germany 1.027  683
49 International Solvay Institutes Belgium 1.025  53
50 Swiss Federal Institute of Technology Zurich (ETH Zurich) Switzerland 1.025  852

Weighted fractional count (WFC) for each institution is shown to two decimal places only. When two or more institutions have the same WFC, their positions are determined by the thousandth place (or beyond).

These results are based on the most recent data available. Owing to continual refinements of the data, the figures in the database are liable to change and might differ to those printed in the supplements.