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.

Thomas Niesler
Speech recognition
Human language technology
Pattern Recognition
Metrics
H-Index
i10 Index
Citation
29
72
3,166
Rong-Jie Wang
Electrical machines and drives
electric traction systems
renewable energy
Metrics
H-Index
i10 Index
Citation
25
56
3,739
* Rankings
Ranking Based On Selection :10
Johan Du Preez
Machine learning
Probabilistic systems
Speech and Image processing
Metrics
H-Index
i10 Index
Citation
16
27
1,895
* Rankings
Ranking Based On Selection :14
GJ Van Rooyen
Telecommunications
Signal Processing
Internet of Things
Blockchain
Metrics
H-Index
i10 Index
Citation
12
14
1,239
* Rankings
Ranking Based On Selection :16
Pieter Van Der Walt
microwave engineering
radar systems
high frequency circuits
printed circuit board and filter design.
Metrics
H-Index
i10 Index
Citation
10
11
412
Willem Jordaan
Satellite Control
Control Systems
Adaptive Control
UAV Systems
General Robotics
Metrics
H-Index
i10 Index
Citation
9
9
194
Munyaradzi Justice Chihota
Probabilistic Load Flow Methods
Renewable Energy Integration
Network Planning
Electric Vehicles
Energy Transition
Metrics
H-Index
i10 Index
Citation
9
8
218
Karen Garner
Electric Machines
Renewable Energy
High Voltage
Transmission and Distribution
Metrics
H-Index
i10 Index
Citation
6
3
97
Chris Joseph Abraham
Electric Vehicles
Public Transport
Renewable Energy
Mechatronics
Electronics
Metrics
H-Index
i10 Index
Citation
5
3
139
William Duckitt
Industrial Control
Digital Signal Processing
RF
High-speed Digital Design
FPGA and Embedded systems
Metrics
H-Index
i10 Index
Citation
4
2
191
Stavros Pastellides
Electrical Engineering
Electric Machines
Permanent Magnet Machines
Surface Mounted Motors
Traction Motors and Drives
Metrics
H-Index
i10 Index
Citation
3
1
19
Dieter Klink
Stochastic modelling
Antennas
Electromagnetics
Uncertainty quantification
Metrics
H-Index
i10 Index
Citation
3
0
21
Rankings
Ranking Based On Selection: 1
Maarten J. Kamper
Metrics
H-Index
i10 Index
Citation Counts
38
120
6,494
Rankings
Ranking Based On Selection: 2
Thomas Niesler
Metrics
H-Index
i10 Index
Citation Counts
29
72
3,166
Speech recognition
Human language technology
Pattern Recognition
Rankings
Ranking Based On Selection: 3
Toit Mouton
Metrics
H-Index
i10 Index
Citation Counts
28
72
3,428
Rankings
Ranking Based On Selection: 4
MJ (Thinus) Booysen
Metrics
H-Index
i10 Index
Citation Counts
27
66
2,754
Rankings
Ranking Based On Selection: 5
Willem Herman Steyn
Metrics
H-Index
i10 Index
Citation Counts
26
59
2,970
Rankings
Ranking Based On Selection: 6
Rong-Jie Wang
Metrics
H-Index
i10 Index
Citation Counts
25
56
3,739
Electrical machines and drives
electric traction systems
renewable energy
Rankings
Ranking Based On Selection: 7
Coenrad Fourie
Metrics
H-Index
i10 Index
Citation Counts
22
54
1,936
Rankings
Ranking Based On Selection: 8
M Kahn
Metrics
H-Index
i10 Index
Citation Counts
20
41
1,200
Rankings
Ranking Based On Selection: 9
Willem Perold
Metrics
H-Index
i10 Index
Citation Counts
18
26
770
Rankings
Ranking Based On Selection: 10
Johan Du Preez
Metrics
H-Index
i10 Index
Citation Counts
16
27
1,895
Machine learning
Probabilistic systems
Speech and Image processing
Rankings
Ranking Based On Selection: 12
Herman Arnold Engelbrecht
Metrics
H-Index
i10 Index
Citation Counts
13
21
802
Rankings
Ranking Based On Selection: 13
Johan Beukes
Metrics
H-Index
i10 Index
Citation Counts
13
16
721
Rankings
Ranking Based On Selection: 14
GJ Van Rooyen
Metrics
H-Index
i10 Index
Citation Counts
12
14
1,239
Telecommunications
Signal Processing
Internet of Things
Blockchain
Rankings
Ranking Based On Selection: 15
Corné E. Van Daalen
Metrics
H-Index
i10 Index
Citation Counts
10
10
256
Rankings
Ranking Based On Selection: 16
Pieter Van Der Walt
Metrics
H-Index
i10 Index
Citation Counts
10
11
412
microwave engineering
radar systems
high frequency circuits
printed circuit board and filter design.
Rankings
Ranking Based On Selection: 17
Willem Jordaan
Metrics
H-Index
i10 Index
Citation Counts
9
9
194
Satellite Control
Control Systems
Adaptive Control
UAV Systems
General Robotics
Rankings
Ranking Based On Selection: 18
Munyaradzi Justice Chihota
Metrics
H-Index
i10 Index
Citation Counts
9
8
218
Probabilistic Load Flow Methods
Renewable Energy Integration
Network Planning
Electric Vehicles
Energy Transition
Rankings
Ranking Based On Selection: 19
Jacki Gilmore
Metrics
H-Index
i10 Index
Citation Counts
6
3
123
Rankings
Ranking Based On Selection: 20
Karen Garner
Metrics
H-Index
i10 Index
Citation Counts
6
3
97
Electric Machines
Renewable Energy
High Voltage
Transmission and Distribution
Rankings
Ranking Based On Selection: 21
Vahid Teymoori
Metrics
H-Index
i10 Index
Citation Counts
6
2
84
Power Electronics
Electrical Drives
Electrical Machines
Control
Rankings
Ranking Based On Selection: 22
Paul Le Roux
Metrics
H-Index
i10 Index
Citation Counts
5
4
172
Rankings
Ranking Based On Selection: 23
Michael Ritchie
Metrics
H-Index
i10 Index
Citation Counts
5
4
156
Rankings
Ranking Based On Selection: 24
Carlo Van Niekerk
Metrics
H-Index
i10 Index
Citation Counts
5
4
82
Rankings
Ranking Based On Selection: 25
Chris Joseph Abraham
Metrics
H-Index
i10 Index
Citation Counts
5
3
139
Electric Vehicles
Public Transport
Renewable Energy
Mechatronics
Electronics
Rankings
Ranking Based On Selection: 26
William Duckitt
Metrics
H-Index
i10 Index
Citation Counts
4
2
191
Industrial Control
Digital Signal Processing
RF
High-speed Digital Design
FPGA and Embedded systems
Rankings
Ranking Based On Selection: 27
Stavros Pastellides
Metrics
H-Index
i10 Index
Citation Counts
3
1
19
Electrical Engineering
Electric Machines
Permanent Magnet Machines
Surface Mounted Motors
Traction Motors and Drives
Rankings
Ranking Based On Selection: 28
Dieter Klink
Metrics
H-Index
i10 Index
Citation Counts
3
0
21
Stochastic modelling
Antennas
Electromagnetics
Uncertainty quantification
Rankings
Ranking Based On Selection: 29
Daniel Mark Kirkman
Metrics
H-Index
i10 Index
Citation Counts
2
0
15
Rankings
Ranking Based On Selection: 30
Stefan Botha
Metrics
H-Index
i10 Index
Citation Counts
2
0
10
Rankings
Ranking Based On Selection: 31
Scj Robertson
Metrics
H-Index
i10 Index
Citation Counts
1
1
15
Rankings
Ranking Based On Selection: 32
André Hartshorne
Metrics
H-Index
i10 Index
Citation Counts
1
0
10
Rankings
Ranking Based On Selection: 33
Cullen Stewart-Burger|CD Stewart-Burger
Metrics
H-Index
i10 Index
Citation Counts
1
0
2