Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of 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, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,121,217 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 2
Roberto Castello
Statistics
Machine Learning
Renewable Energy
Building Physics
Particle Physic
Metrics
 
H-Index
i10 Index
Citation
224
714
209,734
* Rankings
Ranking Based On Selection: 4
Emma Tolley
astrophysics
data science
machine learning
high energy physic
Metrics
 
H-Index
i10 Index
Citation
197
665
149,505
* Rankings
Ranking Based On Selection: 6
Johan Auwerx
Aging
Mitochondria
Systems genetic
Metrics
 
H-Index
i10 Index
Citation
194
594
149,896
* Rankings
Ranking Based On Selection: 7
Anders Hagfeldt
solar cells
photoelectrochemistry
solar fuel
dye-sensitized
perovskite solar cell
Metrics
 
H-Index
i10 Index
Citation
181
634
151,010
* Rankings
Ranking Based On Selection: 9
Jean Paul Kneib
Cosmology
Astrophysics
Astronomy
Lensing
Redshift Survey
Metrics
 
H-Index
i10 Index
Citation
148
525
100,551
* Rankings
Ranking Based On Selection: 11
Paul Joseph Dyson
bioorganometallic chemistry
organometallic chemistry
biomass conversion
catalysi
Metrics
 
H-Index
i10 Index
Citation
127
657
65,164
* Rankings
Ranking Based On Selection: 12
Pascal Fua
Computer Vision
Machine Learning
Computer Asisted Eng.
Biomedical Imagin
Metrics
 
H-Index
i10 Index
Citation
124
422
82,918
* Rankings
Ranking Based On Selection: 16
Michael Unser
image processing
wavelets
splines
biomedical imaging
inverse problem
Metrics
 
H-Index
i10 Index
Citation
115
516
69,721
* Rankings
Ranking Based On Selection: 17
Tobias J Kippenberg
Cavity quantum optomechanics
Superconducting microwave optomechanics
nonlinear integrated photonics
nano-mechanical system
Metrics
 
H-Index
i10 Index
Citation
114
293
74,197
* Rankings
Ranking Based On Selection: 20
Christophe Ballif
solar cells and modules
building integrated photovoltaics
storage
smart gri
Metrics
 
H-Index
i10 Index
Citation
109
471
44,499
* Rankings
Ranking Based On Selection: 21
Andrea Rinaldo
Hydrology
ecohydrology
river networks as ecological corridors
spatially explicit epidemiology of waterborne diseas
Metrics
 
H-Index
i10 Index
Citation
109
269
33,043
* Rankings
Ranking Based On Selection: 24
Kristina Schoonjans
Metabolism
bile acid signaling
liver-gut-brain axi
Metrics
 
H-Index
i10 Index
Citation
104
185
49,943
Rankings
Ranking Based On Selection: 1
Michael Graetzel
Metrics
 
H-Index
i10 Index
Citation Counts
312
1,561
509,113
Rankings
Ranking Based On Selection: 2
Roberto Castello
Metrics
 
H-Index
i10 Index
Citation Counts
224
714
209,734
Statistics
Machine Learning
Renewable Energy
Building Physics
Particle Physic
Rankings
Ranking Based On Selection: 3
Richard Frackowiak
Metrics
 
H-Index
i10 Index
Citation Counts
220
504
196,889
Rankings
Ranking Based On Selection: 4
Emma Tolley
Metrics
 
H-Index
i10 Index
Citation Counts
197
665
149,505
astrophysics
data science
machine learning
high energy physic
Rankings
Ranking Based On Selection: 5
Nazeeruddin
Metrics
 
H-Index
i10 Index
Citation Counts
196
866
191,401
Rankings
Ranking Based On Selection: 6
Johan Auwerx
Metrics
 
H-Index
i10 Index
Citation Counts
194
594
149,896
Aging
Mitochondria
Systems genetic
Rankings
Ranking Based On Selection: 7
Anders Hagfeldt
Metrics
 
H-Index
i10 Index
Citation Counts
181
634
151,010
solar cells
photoelectrochemistry
solar fuel
dye-sensitized
perovskite solar cell
Rankings
Ranking Based On Selection: 8
Sven Kreiss
Metrics
 
H-Index
i10 Index
Citation Counts
177
364
127,561
Rankings
Ranking Based On Selection: 9
Jean Paul Kneib
Metrics
 
H-Index
i10 Index
Citation Counts
148
525
100,551
Cosmology
Astrophysics
Astronomy
Lensing
Redshift Survey
Rankings
Ranking Based On Selection: 10
Stewart Cole
Metrics
 
H-Index
i10 Index
Citation Counts
133
424
78,032
Rankings
Ranking Based On Selection: 11
Paul Joseph Dyson
Metrics
 
H-Index
i10 Index
Citation Counts
127
657
65,164
bioorganometallic chemistry
organometallic chemistry
biomass conversion
catalysi
Rankings
Ranking Based On Selection: 12
Pascal Fua
Metrics
 
H-Index
i10 Index
Citation Counts
124
422
82,918
Computer Vision
Machine Learning
Computer Asisted Eng.
Biomedical Imagin
Rankings
Ranking Based On Selection: 13
Karen Scrivener
Metrics
 
H-Index
i10 Index
Citation Counts
121
335
66,849
Rankings
Ranking Based On Selection: 14
Martin Vetterli
Metrics
 
H-Index
i10 Index
Citation Counts
120
475
82,611
Rankings
Ranking Based On Selection: 15
Didier Trono
Metrics
 
H-Index
i10 Index
Citation Counts
118
277
78,868
Rankings
Ranking Based On Selection: 16
Michael Unser
Metrics
 
H-Index
i10 Index
Citation Counts
115
516
69,721
image processing
wavelets
splines
biomedical imaging
inverse problem
Rankings
Ranking Based On Selection: 17
Tobias J Kippenberg
Metrics
 
H-Index
i10 Index
Citation Counts
114
293
74,197
Cavity quantum optomechanics
Superconducting microwave optomechanics
nonlinear integrated photonics
nano-mechanical system
Rankings
Ranking Based On Selection: 18
Lyndon Emsley
Metrics
 
H-Index
i10 Index
Citation Counts
112
393
39,467
Rankings
Ranking Based On Selection: 19
Giovanni De Micheli
Metrics
 
H-Index
i10 Index
Citation Counts
112
621
57,518
Rankings
Ranking Based On Selection: 20
Christophe Ballif
Metrics
 
H-Index
i10 Index
Citation Counts
109
471
44,499
solar cells and modules
building integrated photovoltaics
storage
smart gri
Rankings
Ranking Based On Selection: 21
Andrea Rinaldo
Metrics
 
H-Index
i10 Index
Citation Counts
109
269
33,043
Hydrology
ecohydrology
river networks as ecological corridors
spatially explicit epidemiology of waterborne diseas
Rankings
Ranking Based On Selection: 22
Demetri Psaltis
Metrics
 
H-Index
i10 Index
Citation Counts
107
463
48,092
Rankings
Ranking Based On Selection: 23
Rosario Scopelliti
Metrics
 
H-Index
i10 Index
Citation Counts
106
533
36,874
Rankings
Ranking Based On Selection: 24
Kristina Schoonjans
Metrics
 
H-Index
i10 Index
Citation Counts
104
185
49,943
Metabolism
bile acid signaling
liver-gut-brain axi
Rankings
Ranking Based On Selection: 25
Nenes Athanasios
Metrics
 
H-Index
i10 Index
Citation Counts
103
335
40,077