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" (873,937 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
Willem Visser
Testing
Symbolic Execution
Software Engineering
Model Checing
Metrics
H-Index
i10 Index
Citation
49
100
11,623
* Rankings
Ranking Based On Selection :3
Bernd Fischer
software engineering
program generation
program verification
formal methods
Metrics
H-Index
i10 Index
Citation
33
87
3,623
Judith Bishop
Programming languages
software engineering
mobile computing
Metrics
H-Index
i10 Index
Citation
25
47
2,422
Andries J Burger
Separation technology
Desalination
Water treatment
Thermodynamics
Metrics
H-Index
i10 Index
Citation
22
36
1,249
Hugh -G. Patterton
Epigenomics
Bioinformatics
Chromatin Structure
C++ coding
Metrics
H-Index
i10 Index
Citation
22
32
1,805
Febe De Wet
Automatic recognition of multilingual code-switched speech
Language technology for under-resourced languages
ASR
Metrics
H-Index
i10 Index
Citation
19
41
1,490
* Rankings
Ranking Based On Selection :12
Ryno Laubscher
Computational Fluid Dynamics
scientific machine learning
Metrics
H-Index
i10 Index
Citation
13
17
666
* Rankings
Ranking Based On Selection :13
Lynette Van Zijl
Automata theory
cellular automata
descriptional complexity of formal systems
Metrics
H-Index
i10 Index
Citation
13
16
555
* Rankings
Ranking Based On Selection :16
Steve Kroon
Machine Learning
Artificial Intelligence
Learning Theory
Metrics
H-Index
i10 Index
Citation
10
10
680
* Rankings
Ranking Based On Selection :17
Gorden Jemwa
Process Monitoring
Artificial Intelligence
Time Series Analysis
Expert Systems
Process Control
Metrics
H-Index
i10 Index
Citation
10
10
364
Elan Van Biljon
Machine learning
deep learning
reinforcement learning
theory of machine learning
Metrics
H-Index
i10 Index
Citation
7
7
376
Innocent Ndibatya,
Sustainable Transportation Research - Decarbonization and eMobility
Intelligent Transport Systems
Agent-Based Modelling
Data
Metrics
H-Index
i10 Index
Citation
7
6
251
Mpho Mafata
Chemometrics
Sensometrics
Data science
Oenology
Chemistry
Metrics
H-Index
i10 Index
Citation
7
3
117
Mkhuseli Ngxande
Image processing
High Performance Computing
Deep Learning
Machine Learning
Bioinformatics
Metrics
H-Index
i10 Index
Citation
6
5
258
Solomon Petrus Le Roux
Machine learning
Animal behaviour classification
Low power
Sensors GPS Accelerometer
Metrics
H-Index
i10 Index
Citation
6
4
144
Rensu P. Theart
Data Analysis
Data Visualization
Virtual Reality
Machine Learning
Neural Networks
Metrics
H-Index
i10 Index
Citation
5
3
125
Richard J Barnett
computational social science
social network analysis
machine learning
data visualisation
Metrics
H-Index
i10 Index
Citation
5
2
119
Elaine Simone Goosen
Bitumen Rheology and Ageing
Pavement Materials
Machine Learning
Metrics
H-Index
i10 Index
Citation
4
1
31
Victory Opeolu
DIstributed Systems
Spatial Publish-Subscribe
Innovation
Electronics & Computer Engineering
Metrics
H-Index
i10 Index
Citation
1
0
3
Felix Mcgregor
Machine learning
deep learning theory
Bayesian machine learning
Metrics
H-Index
i10 Index
Citation
1
0
3
Collen Zvandasara
Monitoring and Evaluation
Data Science
Knowledge Discovery and Machine Learning (KDML)
Legal Justice
Artificial Intelligence
Metrics
H-Index
i10 Index
Citation
1
0
2
Joshua Berndt
Computer Science
Formal Concept Analysis
Description Logics
Metrics
H-Index
i10 Index
Citation
1
0
1
Werner Van Der Merwe
Machine Learning
Probabilistic Graphical Models
Speech Technology
Metrics
H-Index
i10 Index
Citation
1
0
1
Rankings
Ranking Based On Selection: 1
Gerard Tromp
Metrics
H-Index
i10 Index
Citation Counts
80
216
22,273
Rankings
Ranking Based On Selection: 2
Willem Visser
Metrics
H-Index
i10 Index
Citation Counts
49
100
11,623
Testing
Symbolic Execution
Software Engineering
Model Checing
Rankings
Ranking Based On Selection: 3
Bernd Fischer
Metrics
H-Index
i10 Index
Citation Counts
33
87
3,623
software engineering
program generation
program verification
formal methods
Rankings
Ranking Based On Selection: 4
Herman Kamper
Metrics
H-Index
i10 Index
Citation Counts
30
58
3,075
Rankings
Ranking Based On Selection: 5
Judith Bishop
Metrics
H-Index
i10 Index
Citation Counts
25
47
2,422
Programming languages
software engineering
mobile computing
Rankings
Ranking Based On Selection: 6
Andries J Burger
Metrics
H-Index
i10 Index
Citation Counts
22
36
1,249
Separation technology
Desalination
Water treatment
Thermodynamics
Rankings
Ranking Based On Selection: 7
Hugh -G. Patterton
Metrics
H-Index
i10 Index
Citation Counts
22
32
1,805
Epigenomics
Bioinformatics
Chromatin Structure
C++ coding
Rankings
Ranking Based On Selection: 8
Jaco Geldenhuys
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,436
Rankings
Ranking Based On Selection: 9
Febe De Wet
Metrics
H-Index
i10 Index
Citation Counts
19
41
1,490
Automatic recognition of multilingual code-switched speech
Language technology for under-resourced languages
ASR
Rankings
Ranking Based On Selection: 10
Brink Van Der Merwe
Metrics
H-Index
i10 Index
Citation Counts
17
28
1,030
Rankings
Ranking Based On Selection: 11
Trienko Grobler
Metrics
H-Index
i10 Index
Citation Counts
14
21
915
Rankings
Ranking Based On Selection: 12
Ryno Laubscher
Metrics
H-Index
i10 Index
Citation Counts
13
17
666
Computational Fluid Dynamics
scientific machine learning
Rankings
Ranking Based On Selection: 13
Lynette Van Zijl
Metrics
H-Index
i10 Index
Citation Counts
13
16
555
Automata theory
cellular automata
descriptional complexity of formal systems
Rankings
Ranking Based On Selection: 14
Sunday Oladayo Oladejo|Sunday O. Oladejo, SO Oladejo
Metrics
H-Index
i10 Index
Citation Counts
11
12
515
Communication Networks
Computational Intelligence
Optimization
Data Science
Rankings
Ranking Based On Selection: 15
Annadie Krygsman
Metrics
H-Index
i10 Index
Citation Counts
11
12
697
Rankings
Ranking Based On Selection: 16
Steve Kroon
Metrics
H-Index
i10 Index
Citation Counts
10
10
680
Machine Learning
Artificial Intelligence
Learning Theory
Rankings
Ranking Based On Selection: 17
Gorden Jemwa
Metrics
H-Index
i10 Index
Citation Counts
10
10
364
Process Monitoring
Artificial Intelligence
Time Series Analysis
Expert Systems
Process Control
Rankings
Ranking Based On Selection: 18
Marcel Dunaiski
Metrics
H-Index
i10 Index
Citation Counts
8
8
220
Rankings
Ranking Based On Selection: 19
Johan Nicolaas Du Plessis
Metrics
H-Index
i10 Index
Citation Counts
8
8
203
Rankings
Ranking Based On Selection: 20
Elan Van Biljon
Metrics
H-Index
i10 Index
Citation Counts
7
7
376
Machine learning
deep learning
reinforcement learning
theory of machine learning
Rankings
Ranking Based On Selection: 21
Innocent Ndibatya,
Metrics
H-Index
i10 Index
Citation Counts
7
6
251
Sustainable Transportation Research - Decarbonization and eMobility
Intelligent Transport Systems
Agent-Based Modelling
Data
Rankings
Ranking Based On Selection: 22
Mpho Mafata
Metrics
H-Index
i10 Index
Citation Counts
7
3
117
Chemometrics
Sensometrics
Data science
Oenology
Chemistry
Rankings
Ranking Based On Selection: 23
Arno Barnard
Metrics
H-Index
i10 Index
Citation Counts
7
5
201
Satellite Systems
Radiation Effects and Mitigation
Rankings
Ranking Based On Selection: 24
Gillian Greene
Metrics
H-Index
i10 Index
Citation Counts
7
5
168
Rankings
Ranking Based On Selection: 25
Mkhuseli Ngxande
Metrics
H-Index
i10 Index
Citation Counts
6
5
258
Image processing
High Performance Computing
Deep Learning
Machine Learning
Bioinformatics
Rankings
Ranking Based On Selection: 26
Leanne Nortje
Metrics
H-Index
i10 Index
Citation Counts
6
4
279
Rankings
Ranking Based On Selection: 27
Solomon Petrus Le Roux
Metrics
H-Index
i10 Index
Citation Counts
6
4
144
Machine learning
Animal behaviour classification
Low power
Sensors GPS Accelerometer
Rankings
Ranking Based On Selection: 28
Benjamin David Evans
Metrics
H-Index
i10 Index
Citation Counts
6
3
71
Reinforcement Learning
Machine Learning
Robotics
Rankings
Ranking Based On Selection: 29
Cornelia P. Inggs
Metrics
H-Index
i10 Index
Citation Counts
6
4
119
Concurrency
Testing
Verification
Performance Analysis
Rankings
Ranking Based On Selection: 30
Rensu P. Theart
Metrics
H-Index
i10 Index
Citation Counts
5
3
125
Data Analysis
Data Visualization
Virtual Reality
Machine Learning
Neural Networks
Rankings
Ranking Based On Selection: 31
Richard J Barnett
Metrics
H-Index
i10 Index
Citation Counts
5
2
119
computational social science
social network analysis
machine learning
data visualisation
Rankings
Ranking Based On Selection: 32
Moeketsi Raselimo
Metrics
H-Index
i10 Index
Citation Counts
4
3
51
Rankings
Ranking Based On Selection: 33
Elaine Simone Goosen
Metrics
H-Index
i10 Index
Citation Counts
4
1
31
Bitumen Rheology and Ageing
Pavement Materials
Machine Learning
Rankings
Ranking Based On Selection: 34
Burger Becker
Metrics
H-Index
i10 Index
Citation Counts
3
2
65
Rankings
Ranking Based On Selection: 35
Dries Smit
Metrics
H-Index
i10 Index
Citation Counts
3
2
58
Rankings
Ranking Based On Selection: 36
David Baker Effendi|Sedick David Baker Effendi
Metrics
H-Index
i10 Index
Citation Counts
3
0
21
Rankings
Ranking Based On Selection: 37
Steyn Van Litsenborgh
Metrics
H-Index
i10 Index
Citation Counts
2
1
29
Rankings
Ranking Based On Selection: 39
Jeanne E Daniel
Metrics
H-Index
i10 Index
Citation Counts
1
1
32
Rankings
Ranking Based On Selection: 40
Dewald Homan
Metrics
H-Index
i10 Index
Citation Counts
1
1
14
Rankings
Ranking Based On Selection: 41
Kevin Brand
Metrics
H-Index
i10 Index
Citation Counts
1
1
11
Rankings
Ranking Based On Selection: 42
Chanelle Matadah Manfouo
Metrics
H-Index
i10 Index
Citation Counts
1
0
9
quantum machine learning
quantum cryptography
data science
Rankings
Ranking Based On Selection: 43
Victory Opeolu
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
DIstributed Systems
Spatial Publish-Subscribe
Innovation
Electronics & Computer Engineering
Rankings
Ranking Based On Selection: 44
Felix Mcgregor
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
Machine learning
deep learning theory
Bayesian machine learning
Rankings
Ranking Based On Selection: 45
Collen Zvandasara
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
Monitoring and Evaluation
Data Science
Knowledge Discovery and Machine Learning (KDML)
Legal Justice
Artificial Intelligence
Rankings
Ranking Based On Selection: 46
Joshua Berndt
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
Computer Science
Formal Concept Analysis
Description Logics
Rankings
Ranking Based On Selection: 47
Werner Van Der Merwe
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
Machine Learning
Probabilistic Graphical Models
Speech Technology
Rankings
Ranking Based On Selection: 48
Willem Duminy
Metrics
H-Index
i10 Index
Citation Counts
1
0
5