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 ranking in world, region, country and university is beta version since subject field "others" (873,864 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection :1
PHRegan
Physics
nuclear physics
radiation physics
Metrics
H-Index
i10 Index
Citation
62
282
14,321
* Rankings
Ranking Based On Selection :2
Ji Read
Astrophysics
computational astrophysics
dynamics
dark matter
Metrics
H-Index
i10 Index
Citation
60
114
15,431
* Rankings
Ranking Based On Selection :4
Joseph L Keddie
self-assembly
colloids
film formation
nanocomposites
adhesives
Metrics
H-Index
i10 Index
Citation
53
147
12,417
* Rankings
Ranking Based On Selection :5
Denis Erkal
Galactic dynamics
Near field cosmology
Stellar streams
Metrics
H-Index
i10 Index
Citation
52
90
7,578
* Rankings
Ranking Based On Selection :6
Stephen J Sweeney
photonics
semiconductor lasers
wireless power
high pressure
photonic thermometry
Metrics
H-Index
i10 Index
Citation
45
151
8,722
* Rankings
Ranking Based On Selection :7
Paul Sellin
Nuclear and Radiation Physics
Radiation Detection
Detector Materials
Metrics
H-Index
i10 Index
Citation
45
160
8,516
* Rankings
Ranking Based On Selection :8
Alfred Adams
semiconductors
lasers
high pressure
Metrics
H-Index
i10 Index
Citation
43
129
7,357
* Rankings
Ranking Based On Selection :9
Richard Sear
Self-Organisation (especially during drying)
Biological Physics
filtration of (virus containing) particles
virus transmission
Metrics
H-Index
i10 Index
Citation
42
125
7,104
* Rankings
Ranking Based On Selection :10
Jim Al Khalili
Nuclear physics
quantum mechanics
quantum biology
Metrics
H-Index
i10 Index
Citation
38
77
5,429
* Rankings
Ranking Based On Selection :12
Ben Murdin
Physics
Semiconductors
Quantum Information
Metrics
H-Index
i10 Index
Citation
37
94
4,097
* Rankings
Ranking Based On Selection :14
Paul Stevenson
Nuclear Physics
Many-body Physics
Nuclear Theory
Quantum Computing
Metrics
H-Index
i10 Index
Citation
34
64
4,326
* Rankings
Ranking Based On Selection :19
Igor Marko
photonics
semiconductor physics
laser physics
Metrics
H-Index
i10 Index
Citation
27
57
2,210
* Rankings
Ranking Based On Selection :23
CP Bridges
System-on-a-Chip (SoC)
Megaconstellations
CubeSats
Software Defined Radio
Embedded Machine Learning
Metrics
H-Index
i10 Index
Citation
21
41
1,652
* Rankings
Ranking Based On Selection :25
Andrea Rocco
Quantum Mechanics
Statistical Mechanics
Biological Physics
Metrics
H-Index
i10 Index
Citation
20
26
1,556
* Rankings
Ranking Based On Selection :26
Abdullah S Alshammari
Physics - Nanocomposites - Printed Electronics
Metrics
H-Index
i10 Index
Citation
18
35
1,381
* Rankings
Ranking Based On Selection :27
Lewis A Baker
Ultrafast spectroscopy
Quantum dynamics
Molecular dynamics
Education
Metrics
H-Index
i10 Index
Citation
17
22
1,029
* Rankings
Ranking Based On Selection :28
Joydip Ghosh
Nanomaterials
Radiation Detector
Halide Perovskite
Optoelectronics
Solar cell
Metrics
H-Index
i10 Index
Citation
15
18
700
* Rankings
Ranking Based On Selection :29
Stacy Y Kim
astrophysics
dark matter
dwarf galaxies
numerical simulations
self-interacting dark matter
Metrics
H-Index
i10 Index
Citation
15
17
1,280
* Rankings
Ranking Based On Selection :30
James Adams
Liquid Crystal Elastomers
Complex Fluids
Rheology
Metrics
H-Index
i10 Index
Citation
15
18
753
* Rankings
Ranking Based On Selection :31
Georgios Gkantzounis
Photonic crystals
phononic crystals
quasi-crystals
hyperuniform structures
Metrics
H-Index
i10 Index
Citation
15
18
724
* Rankings
Ranking Based On Selection :32
Steven James Bell
Radioactivity
Radiation Detection
Materials Characterisation
Cd(Zn)Te
Semiconductor Fabrication
Metrics
H-Index
i10 Index
Citation
14
16
719
Xiaoyu Fu
Astrodynamics
Dynamical System Theory
Differential Algebra
Metrics
H-Index
i10 Index
Citation
8
5
117
Giacomo Acciarini
Astrodynamics
Artificial Intelligence
Machine Learning
Uncertainty Propagation
Optimization
Metrics
H-Index
i10 Index
Citation
6
5
137
Joe Louis Hall
Soft matter physics
colloids
latex
coatings
Metrics
H-Index
i10 Index
Citation
3
0
21
Rankings
Ranking Based On Selection: 1
PHRegan
Metrics
H-Index
i10 Index
Citation Counts
62
282
14,321
Physics
nuclear physics
radiation physics
Rankings
Ranking Based On Selection: 2
Ji Read
Metrics
H-Index
i10 Index
Citation Counts
60
114
15,431
Astrophysics
computational astrophysics
dynamics
dark matter
Rankings
Ranking Based On Selection: 3
William Gelletly
Metrics
H-Index
i10 Index
Citation Counts
56
226
11,769
Rankings
Ranking Based On Selection: 4
Joseph L Keddie
Metrics
H-Index
i10 Index
Citation Counts
53
147
12,417
self-assembly
colloids
film formation
nanocomposites
adhesives
Rankings
Ranking Based On Selection: 5
Denis Erkal
Metrics
H-Index
i10 Index
Citation Counts
52
90
7,578
Galactic dynamics
Near field cosmology
Stellar streams
Rankings
Ranking Based On Selection: 6
Stephen J Sweeney
Metrics
H-Index
i10 Index
Citation Counts
45
151
8,722
photonics
semiconductor lasers
wireless power
high pressure
photonic thermometry
Rankings
Ranking Based On Selection: 7
Paul Sellin
Metrics
H-Index
i10 Index
Citation Counts
45
160
8,516
Nuclear and Radiation Physics
Radiation Detection
Detector Materials
Rankings
Ranking Based On Selection: 8
Alfred Adams
Metrics
H-Index
i10 Index
Citation Counts
43
129
7,357
Rankings
Ranking Based On Selection: 9
Richard Sear
Metrics
H-Index
i10 Index
Citation Counts
42
125
7,104
Self-Organisation (especially during drying)
Biological Physics
filtration of (virus containing) particles
virus transmission
Rankings
Ranking Based On Selection: 10
Jim Al Khalili
Metrics
H-Index
i10 Index
Citation Counts
38
77
5,429
Nuclear physics
quantum mechanics
quantum biology
Rankings
Ranking Based On Selection: 11
Alessia Gualandris
Metrics
H-Index
i10 Index
Citation Counts
37
56
4,068
Rankings
Ranking Based On Selection: 12
Ben Murdin
Metrics
H-Index
i10 Index
Citation Counts
37
94
4,097
Physics
Semiconductors
Quantum Information
Rankings
Ranking Based On Selection: 13
Michelle Collins
Metrics
H-Index
i10 Index
Citation Counts
35
55
6,067
Rankings
Ranking Based On Selection: 14
Paul Stevenson
Metrics
H-Index
i10 Index
Citation Counts
34
64
4,326
Nuclear Physics
Many-body Physics
Nuclear Theory
Quantum Computing
Rankings
Ranking Based On Selection: 15
Anthony Clough
Metrics
H-Index
i10 Index
Citation Counts
34
75
3,985
Rankings
Ranking Based On Selection: 16
Noelia Ed Noël
Metrics
H-Index
i10 Index
Citation Counts
31
41
2,329
Rankings
Ranking Based On Selection: 17
Ellen Donovan
Metrics
H-Index
i10 Index
Citation Counts
30
45
4,886
Rankings
Ranking Based On Selection: 18
Alessandro Torrielli
Metrics
H-Index
i10 Index
Citation Counts
30
53
3,983
Rankings
Ranking Based On Selection: 19
Igor Marko
Metrics
H-Index
i10 Index
Citation Counts
27
57
2,210
photonics
semiconductor physics
laser physics
Rankings
Ranking Based On Selection: 20
Andrea Fortini
Metrics
H-Index
i10 Index
Citation Counts
27
33
2,100
Rankings
Ranking Based On Selection: 21
Daniel Doherty
Metrics
H-Index
i10 Index
Citation Counts
25
50
1,694
Rankings
Ranking Based On Selection: 22
Kasia Hadyńska Klęk
Metrics
H-Index
i10 Index
Citation Counts
24
55
2,157
Rankings
Ranking Based On Selection: 23
CP Bridges
Metrics
H-Index
i10 Index
Citation Counts
21
41
1,652
System-on-a-Chip (SoC)
Megaconstellations
CubeSats
Software Defined Radio
Embedded Machine Learning
Rankings
Ranking Based On Selection: 24
Jack Henderson
Metrics
H-Index
i10 Index
Citation Counts
21
37
1,113
Rankings
Ranking Based On Selection: 25
Andrea Rocco
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,556
Quantum Mechanics
Statistical Mechanics
Biological Physics
Rankings
Ranking Based On Selection: 26
Abdullah S Alshammari
Metrics
H-Index
i10 Index
Citation Counts
18
35
1,381
Physics - Nanocomposites - Printed Electronics
Rankings
Ranking Based On Selection: 27
Lewis A Baker
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,029
Ultrafast spectroscopy
Quantum dynamics
Molecular dynamics
Education
Rankings
Ranking Based On Selection: 28
Joydip Ghosh
Metrics
H-Index
i10 Index
Citation Counts
15
18
700
Nanomaterials
Radiation Detector
Halide Perovskite
Optoelectronics
Solar cell
Rankings
Ranking Based On Selection: 29
Stacy Y Kim
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,280
astrophysics
dark matter
dwarf galaxies
numerical simulations
self-interacting dark matter
Rankings
Ranking Based On Selection: 30
James Adams
Metrics
H-Index
i10 Index
Citation Counts
15
18
753
Liquid Crystal Elastomers
Complex Fluids
Rheology
Rankings
Ranking Based On Selection: 31
Georgios Gkantzounis
Metrics
H-Index
i10 Index
Citation Counts
15
18
724
Photonic crystals
phononic crystals
quasi-crystals
hyperuniform structures
Rankings
Ranking Based On Selection: 32
Steven James Bell
Metrics
H-Index
i10 Index
Citation Counts
14
16
719
Radioactivity
Radiation Detection
Materials Characterisation
Cd(Zn)Te
Semiconductor Fabrication
Rankings
Ranking Based On Selection: 33
Philip Goddard
Metrics
H-Index
i10 Index
Citation Counts
12
14
530
Rankings
Ranking Based On Selection: 34
Xiaoyu Fu
Metrics
H-Index
i10 Index
Citation Counts
8
5
117
Astrodynamics
Dynamical System Theory
Differential Algebra
Rankings
Ranking Based On Selection: 35
Giacomo Acciarini
Metrics
H-Index
i10 Index
Citation Counts
6
5
137
Astrodynamics
Artificial Intelligence
Machine Learning
Uncertainty Propagation
Optimization
Rankings
Ranking Based On Selection: 36
Cameron Cl Underwood
Metrics
H-Index
i10 Index
Citation Counts
4
2
64
Condensed Matter Theory
Perovskites
DFT
Rankings
Ranking Based On Selection: 37
Nicolò Bernardini
Metrics
H-Index
i10 Index
Citation Counts
4
1
47
Rankings
Ranking Based On Selection: 38
James Benstead
Metrics
H-Index
i10 Index
Citation Counts
4
2
91
Rankings
Ranking Based On Selection: 39
Joe Louis Hall
Metrics
H-Index
i10 Index
Citation Counts
3
0
21
Soft matter physics
colloids
latex
coatings
Rankings
Ranking Based On Selection: 40
Andrea Turconi
Metrics
H-Index
i10 Index
Citation Counts
3
2
47
Astrodynamics
Asteroids
Flight Dynamics