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" (936,901 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
Ionel Mugurel Ciobîcă
catalysis
theoretical chemistry
DFT
Metrics
H-Index
i10 Index
Citation
25
32
2,830
* Rankings
Ranking Based On Selection: 2
Stefanus Otto
Chemistry
reactivity
catalysis
crystallography
Metrics
H-Index
i10 Index
Citation
25
48
2,411
* Rankings
Ranking Based On Selection: 3
Denzil James Moodley
Catalyst preparation and scale-up
catalyst deactivation
Fischer-Tropsch Catalysis
Regeneration
Metrics
H-Index
i10 Index
Citation
24
28
2,300
* Rankings
Ranking Based On Selection: 7
Jan-Albert Van Den Berg
data science
computational chemistry
catalysis
data engineering
discrete optimisation
Metrics
H-Index
i10 Index
Citation
14
16
968
* Rankings
Ranking Based On Selection: 8
Munaka Chris Maumela
Catalysis
Organic Chemistry
Phosphororus chemistry
ligand design & development
Inorganic Chemistry
Metrics
H-Index
i10 Index
Citation
11
12
761
* Rankings
Ranking Based On Selection: 10
Roelof Coetzer
Design of experiments
Optimization
Data science
Statistical learning
Metrics
H-Index
i10 Index
Citation
10
12
600

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* Rankings
Ranking Based On Selection: 11
Arthur Bell
Automotive fuels
engines
combustion
Metrics
H-Index
i10 Index
Citation
8
8
443
* Rankings
Ranking Based On Selection: 14
Jannie Scholtz
chemical engineering
Fischer Tropsch
Chemicals
Modelling
Business
Metrics
H-Index
i10 Index
Citation
6
3
407
* Rankings
Ranking Based On Selection: 15
Ruan Francois Rossouw
Multivariate Statistics
Machine Learning
Multivariate Statistical Process Control
Metrics
H-Index
i10 Index
Citation
5
2
73
* Rankings
Ranking Based On Selection: 16
Berni Jooste
Piezoelectric thin films
CFD
Engineering Simulation
Energy Harvesting
Meta Models
Metrics
H-Index
i10 Index
Citation
5
4
414
* Rankings
Ranking Based On Selection: 17
Thulani Dlamini
Materials Science
Catalysis
Innovation Management
Innovation Systems Development
Strategy
Metrics
H-Index
i10 Index
Citation
4
2
100
* Rankings
Ranking Based On Selection: 18
Selby Maphutha
Nanotechnology
carbon nanotubes
membrane separation
water purification
Metrics
H-Index
i10 Index
Citation
3
2
199
* Rankings
Ranking Based On Selection: 20
Musa Shilenge
IIoT
IT/OT Integration
Smart Manufacturing
Business Performance
Metrics
H-Index
i10 Index
Citation
3
2
29
Rankings
Ranking Based On Selection: 1
Ionel Mugurel Ciobîcă
Metrics
H-Index
i10 Index
Citation Counts
25
32
2,830
Rankings
Ranking Based On Selection: 2
Stefanus Otto
Metrics
H-Index
i10 Index
Citation Counts
25
48
2,411
Chemistry
reactivity
catalysis
crystallography
Rankings
Ranking Based On Selection: 3
Denzil James Moodley
Metrics
H-Index
i10 Index
Citation Counts
24
28
2,300
Catalyst preparation and scale-up
catalyst deactivation
Fischer-Tropsch Catalysis
Regeneration
Rankings
Ranking Based On Selection: 4
Martin Hanton
Metrics
H-Index
i10 Index
Citation Counts
20
35
1,395
Rankings
Ranking Based On Selection: 5
Grant S. Forman
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,385
Rankings
Ranking Based On Selection: 6
Kobus Visagie
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,550
Rankings
Ranking Based On Selection: 7
Jan-Albert Van Den Berg
Metrics
H-Index
i10 Index
Citation Counts
14
16
968
data science
computational chemistry
catalysis
data engineering
discrete optimisation
Rankings
Ranking Based On Selection: 8
Munaka Chris Maumela
Metrics
H-Index
i10 Index
Citation Counts
11
12
761
Catalysis
Organic Chemistry
Phosphororus chemistry
ligand design & development
Inorganic Chemistry
Rankings
Ranking Based On Selection: 9
Amro S Elhag
Metrics
H-Index
i10 Index
Citation Counts
10
10
745
Rankings
Ranking Based On Selection: 10
Roelof Coetzer
Metrics
H-Index
i10 Index
Citation Counts
10
12
600
Design of experiments
Optimization
Data science
Statistical learning

Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.

Rankings
Ranking Based On Selection: 11
Arthur Bell
Metrics
H-Index
i10 Index
Citation Counts
8
8
443
Rankings
Ranking Based On Selection: 12
Alisa Govender
Metrics
H-Index
i10 Index
Citation Counts
8
6
146
Rankings
Ranking Based On Selection: 13
Martin Ginster
Metrics
H-Index
i10 Index
Citation Counts
7
6
139
Rankings
Ranking Based On Selection: 14
Jannie Scholtz
Metrics
H-Index
i10 Index
Citation Counts
6
3
407
chemical engineering
Fischer Tropsch
Chemicals
Modelling
Business
Rankings
Ranking Based On Selection: 15
Ruan Francois Rossouw
Metrics
H-Index
i10 Index
Citation Counts
5
2
73
Multivariate Statistics
Machine Learning
Multivariate Statistical Process Control
Rankings
Ranking Based On Selection: 16
Berni Jooste
Metrics
H-Index
i10 Index
Citation Counts
5
4
414
Piezoelectric thin films
CFD
Engineering Simulation
Energy Harvesting
Meta Models
Rankings
Ranking Based On Selection: 17
Thulani Dlamini
Metrics
H-Index
i10 Index
Citation Counts
4
2
100
Materials Science
Catalysis
Innovation Management
Innovation Systems Development
Strategy
Rankings
Ranking Based On Selection: 18
Selby Maphutha
Metrics
H-Index
i10 Index
Citation Counts
3
2
199
Nanotechnology
carbon nanotubes
membrane separation
water purification
Rankings
Ranking Based On Selection: 19
David Conradie
Metrics
H-Index
i10 Index
Citation Counts
3
2
44
Rankings
Ranking Based On Selection: 20
Musa Shilenge
Metrics
H-Index
i10 Index
Citation Counts
3
2
29
IIoT
IT/OT Integration
Smart Manufacturing
Business Performance
Rankings
Ranking Based On Selection: 21
Hlengiwe Mnculwane
Metrics
H-Index
i10 Index
Citation Counts
2
2
49
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