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 :2
Sergei Sharapov
Plasma
nuclear fusion
energetic ions
Magnetohydrodynamics
diagnostics of energetic particles
Metrics
H-Index
i10 Index
Citation
69
243
15,827
* Rankings
Ranking Based On Selection :3
Colin M Roach
plasma physics
fusion
plasma turbulence
magnetic confinement
(high energy physics)
Metrics
H-Index
i10 Index
Citation
61
140
16,351
* Rankings
Ranking Based On Selection :4
Robert Akers
Plasma Physics
High Energy Physics
HPC
AI
Engineering Simulation
Metrics
H-Index
i10 Index
Citation
60
168
11,217
* Rankings
Ranking Based On Selection :5
Vasily Kiptily
Plasma physics
nuclear fusion
fusion plasma diagnostics
nuclear physics
Metrics
H-Index
i10 Index
Citation
51
175
8,867
* Rankings
Ranking Based On Selection :9
Andrew Meigs
plasma physics
spectrscopy
diagnostics
data analsysis
scientific programming
Metrics
H-Index
i10 Index
Citation
45
120
6,048
* Rankings
Ranking Based On Selection :11
Fulvio Militello
Plasma physics
Nuclear Fusion
Nonlinear Dynamics
Turbulence
Metrics
H-Index
i10 Index
Citation
38
85
3,817
* Rankings
Ranking Based On Selection :18
Stuart Henderson
tokamaks
plasma physics
divertor physics
nuclear fusion
Metrics
H-Index
i10 Index
Citation
30
56
2,550
* Rankings
Ranking Based On Selection :19
Kevin Verhaegh
plasma spectroscopy
divertor detachment
tokamak power exhaust
plasma diagnostics
uncertainty
Metrics
H-Index
i10 Index
Citation
29
43
1,987
* Rankings
Ranking Based On Selection :25
Michael Fitzgerald
Plasma physics
Fusion
Tokamaks
Magnetohydrodynamics
Fast particles
Metrics
H-Index
i10 Index
Citation
22
45
1,749
* Rankings
Ranking Based On Selection :26
James Morris
Nuclear Fusion
Plasma Physics
Energy
Nuclear Technology
Metrics
H-Index
i10 Index
Citation
21
32
2,184
* Rankings
Ranking Based On Selection :28
Simon James Freethy
Plasma Physics
Fusion energy
Microwave imaging
reflectometry
electron bernstein waves
Metrics
H-Index
i10 Index
Citation
19
30
1,063
* Rankings
Ranking Based On Selection :29
Debasmita Samaddar
Physics
plasmas
parallel in time algorithms
parareal
pfasst
Metrics
H-Index
i10 Index
Citation
18
21
1,164
* Rankings
Ranking Based On Selection :30
Benjamin Chapman
Plasma physics
nuclear fusion
pedestal
gyrokinetics
ion cyclotron emission
Metrics
H-Index
i10 Index
Citation
14
18
500
* Rankings
Ranking Based On Selection :31
James Oliver|Henry Oliver
Plasma physics
Fusion
Magnetohydrodynamics
Energetic Particles
Metrics
H-Index
i10 Index
Citation
13
15
703
Joseph Allcock
Interferometry
Imaging
Spectroscopy
Plasma physics
Nuclear fusion
Metrics
H-Index
i10 Index
Citation
8
8
297
Rankings
Ranking Based On Selection: 1
Stephen Philip Marsden
Metrics
H-Index
i10 Index
Citation Counts
183
424
115,625
Nuclear Fusion
NBI
ECRH
ECCD
Plasma Physics
Rankings
Ranking Based On Selection: 2
Sergei Sharapov
Metrics
H-Index
i10 Index
Citation Counts
69
243
15,827
Plasma
nuclear fusion
energetic ions
Magnetohydrodynamics
diagnostics of energetic particles
Rankings
Ranking Based On Selection: 3
Colin M Roach
Metrics
H-Index
i10 Index
Citation Counts
61
140
16,351
plasma physics
fusion
plasma turbulence
magnetic confinement
(high energy physics)
Rankings
Ranking Based On Selection: 4
Robert Akers
Metrics
H-Index
i10 Index
Citation Counts
60
168
11,217
Plasma Physics
High Energy Physics
HPC
AI
Engineering Simulation
Rankings
Ranking Based On Selection: 5
Vasily Kiptily
Metrics
H-Index
i10 Index
Citation Counts
51
175
8,867
Plasma physics
nuclear fusion
fusion plasma diagnostics
nuclear physics
Rankings
Ranking Based On Selection: 6
James Harrison
Metrics
H-Index
i10 Index
Citation Counts
50
136
7,442
Rankings
Ranking Based On Selection: 7
Luca Garzotti
Metrics
H-Index
i10 Index
Citation Counts
49
148
7,644
Plasma physics
Nuclear fusion
Tokamak physics
Rankings
Ranking Based On Selection: 8
Ken Mcclements
Metrics
H-Index
i10 Index
Citation Counts
46
143
6,324
Rankings
Ranking Based On Selection: 9
Andrew Meigs
Metrics
H-Index
i10 Index
Citation Counts
45
120
6,048
plasma physics
spectrscopy
diagnostics
data analsysis
scientific programming
Rankings
Ranking Based On Selection: 10
Jon C. Hillesheim
Metrics
H-Index
i10 Index
Citation Counts
41
74
4,344
Plasma Physics
Fusion
Turbulence
Transport
Rankings
Ranking Based On Selection: 11
Fulvio Militello
Metrics
H-Index
i10 Index
Citation Counts
38
85
3,817
Plasma physics
Nuclear Fusion
Nonlinear Dynamics
Turbulence
Rankings
Ranking Based On Selection: 12
D Moulton
Metrics
H-Index
i10 Index
Citation Counts
36
76
4,027
Rankings
Ranking Based On Selection: 13
Stanislas Pamela
Metrics
H-Index
i10 Index
Citation Counts
36
69
3,921
Rankings
Ranking Based On Selection: 14
Marco Sertoli
Metrics
H-Index
i10 Index
Citation Counts
35
73
4,367
Rankings
Ranking Based On Selection: 15
David L Keeling
Metrics
H-Index
i10 Index
Citation Counts
35
82
3,911
nuclear fusion
plasma physics
STM
self assembly
Rankings
Ranking Based On Selection: 16
Jean-Christophe Sublet
Metrics
H-Index
i10 Index
Citation Counts
34
72
6,593
Nuclear physics
simulation science
nuclear data
Rankings
Ranking Based On Selection: 17
Nicholas Walkden
Metrics
H-Index
i10 Index
Citation Counts
32
55
2,682
Tokamak plasma physics
scrape-off layer
Rankings
Ranking Based On Selection: 18
Stuart Henderson
Metrics
H-Index
i10 Index
Citation Counts
30
56
2,550
tokamaks
plasma physics
divertor physics
nuclear fusion
Rankings
Ranking Based On Selection: 19
Kevin Verhaegh
Metrics
H-Index
i10 Index
Citation Counts
29
43
1,987
plasma spectroscopy
divertor detachment
tokamak power exhaust
plasma diagnostics
uncertainty
Rankings
Ranking Based On Selection: 20
Gabor Szepesi
Metrics
H-Index
i10 Index
Citation Counts
29
70
3,799
Rankings
Ranking Based On Selection: 21
Andrew Ash
Metrics
H-Index
i10 Index
Citation Counts
29
43
2,391
Rankings
Ranking Based On Selection: 22
Darren Mcdonald
Metrics
H-Index
i10 Index
Citation Counts
29
53
2,726
Rankings
Ranking Based On Selection: 23
Hongjuan Sun
Metrics
H-Index
i10 Index
Citation Counts
26
38
2,288
Rankings
Ranking Based On Selection: 24
Laszlo Horvath
Metrics
H-Index
i10 Index
Citation Counts
24
37
1,797
Rankings
Ranking Based On Selection: 25
Michael Fitzgerald
Metrics
H-Index
i10 Index
Citation Counts
22
45
1,749
Plasma physics
Fusion
Tokamaks
Magnetohydrodynamics
Fast particles
Rankings
Ranking Based On Selection: 26
James Morris
Metrics
H-Index
i10 Index
Citation Counts
21
32
2,184
Nuclear Fusion
Plasma Physics
Energy
Nuclear Technology
Rankings
Ranking Based On Selection: 27
Stuart Muldrew
Metrics
H-Index
i10 Index
Citation Counts
21
28
2,553
Rankings
Ranking Based On Selection: 28
Simon James Freethy
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,063
Plasma Physics
Fusion energy
Microwave imaging
reflectometry
electron bernstein waves
Rankings
Ranking Based On Selection: 29
Debasmita Samaddar
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,164
Physics
plasmas
parallel in time algorithms
parareal
pfasst
Rankings
Ranking Based On Selection: 30
Benjamin Chapman
Metrics
H-Index
i10 Index
Citation Counts
14
18
500
Plasma physics
nuclear fusion
pedestal
gyrokinetics
ion cyclotron emission
Rankings
Ranking Based On Selection: 31
James Oliver|Henry Oliver
Metrics
H-Index
i10 Index
Citation Counts
13
15
703
Plasma physics
Fusion
Magnetohydrodynamics
Energetic Particles
Rankings
Ranking Based On Selection: 32
James Simpson
Metrics
H-Index
i10 Index
Citation Counts
10
10
577
Plasma Physics
Tokamak Plasma Physics
Rankings
Ranking Based On Selection: 33
Daniel Kennedy
Metrics
H-Index
i10 Index
Citation Counts
9
9
394
Rankings
Ranking Based On Selection: 34
Joseph Allcock
Metrics
H-Index
i10 Index
Citation Counts
8
8
297
Interferometry
Imaging
Spectroscopy
Plasma physics
Nuclear fusion
Rankings
Ranking Based On Selection: 35
Stefan Mijin
Metrics
H-Index
i10 Index
Citation Counts
4
3
61
plasma physics
SOL simulations
kinetic theory
Rankings
Ranking Based On Selection: 36
Chris Bowman
Metrics
H-Index
i10 Index
Citation Counts
3
2
65
Rankings
Ranking Based On Selection: 37
Yacopo Damizia
Metrics
H-Index
i10 Index
Citation Counts
3
2
43