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" (873,690 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
Leon MT Dicks
Microbiology
lactic acid bacteria
antimicrobial peptides
bacteriocins
probiotics
Metrics
H-Index
i10 Index
Citation
83
255
19,884
* Rankings
Ranking Based On Selection: 4
Grant Theron
Tuberculosis
Diagnostics
Transmission Dynamics
Drug resistance
Microbiome
Metrics
H-Index
i10 Index
Citation
55
104
9,795
* Rankings
Ranking Based On Selection: 5
Andrew Whitelaw
Antimicrobial resistance
laboratory diagnosis
molecular diagnosis
molecular epidemiology
tuberculosis
Metrics
H-Index
i10 Index
Citation
52
124
10,054
* Rankings
Ranking Based On Selection: 7
Maret Du Toit
wine microbiology
lactic acid bacteria
malolactic fermentation
microbial wine spoilage
biopreservation
Metrics
H-Index
i10 Index
Citation
45
77
6,594
* Rankings
Ranking Based On Selection: 8
Samantha Sampson
Mycobacteriology
tuberculosis
host-pathogen interaction
Metrics
H-Index
i10 Index
Citation
38
51
4,607

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* Rankings
Ranking Based On Selection: 12
Angela Dramowski
Neonatal sepsis
Bloodstream infection
Antimicrobial resistance & stewardship
Healthcare-associated infection
Infection preve
Metrics
H-Index
i10 Index
Citation
33
71
14,632
* Rankings
Ranking Based On Selection: 13
Alfred Botha
Microbial ecology
yeasts
Mycology
soil biology
Metrics
H-Index
i10 Index
Citation
30
90
3,871
* Rankings
Ranking Based On Selection: 14
Mathabatha Evodia Setati
microbial ecology
microbial diversity
wine fermentation
non-saccharomyces yeasts
Metrics
H-Index
i10 Index
Citation
27
39
2,308
* Rankings
Ranking Based On Selection: 19
Heinrich Volschenk
microbiology
yeast biotechnology
protein engineering
proteomics
bioinformatics
Metrics
H-Index
i10 Index
Citation
17
25
1,598
* Rankings
Ranking Based On Selection: 20
Karen Jacqueline Cloete
Microbiology
Psychiatry
Ion beam analysis
Synchrotron radiation
Nanotechnology
Metrics
H-Index
i10 Index
Citation
13
20
862
* Rankings
Ranking Based On Selection: 22
Peter Kotsoana Montso
Microbiology
Antibiotic Resistance
Phages
Phage-Host interaction
Microbiome
Metrics
H-Index
i10 Index
Citation
11
12
412
* Rankings
Ranking Based On Selection: 23
Byron Reeve
Microbiology
Biotechnology
Molecular Biology
Mycobacerium Tuberculosis
Diagnostics
Metrics
H-Index
i10 Index
Citation
11
11
531
* Rankings
Ranking Based On Selection: 24
Anna O. Okunola
Tuberculosis
Diagnostics
Clinical Trial
Clinical Research
Milk Microbiome
Metrics
H-Index
i10 Index
Citation
6
6
230
* Rankings
Ranking Based On Selection: 25
Ross Vermeulen
Bacteriocins
antimicrobial peptides
toxins
fluorescent reporter systems
heterologous expression
Metrics
H-Index
i10 Index
Citation
6
3
76
Rankings
Ranking Based On Selection: 1
Leon MT Dicks
Metrics
H-Index
i10 Index
Citation Counts
83
255
19,884
Microbiology
lactic acid bacteria
antimicrobial peptides
bacteriocins
probiotics
Rankings
Ranking Based On Selection: 2
Willem Heber (Emile) Van Zyl
Metrics
H-Index
i10 Index
Citation Counts
62
170
20,791
Rankings
Ranking Based On Selection: 3
Bernard Prior
Metrics
H-Index
i10 Index
Citation Counts
57
154
13,613
Rankings
Ranking Based On Selection: 4
Grant Theron
Metrics
H-Index
i10 Index
Citation Counts
55
104
9,795
Tuberculosis
Diagnostics
Transmission Dynamics
Drug resistance
Microbiome
Rankings
Ranking Based On Selection: 5
Andrew Whitelaw
Metrics
H-Index
i10 Index
Citation Counts
52
124
10,054
Antimicrobial resistance
laboratory diagnosis
molecular diagnosis
molecular epidemiology
tuberculosis
Rankings
Ranking Based On Selection: 6
TE Cloete
Metrics
H-Index
i10 Index
Citation Counts
52
138
10,549
Rankings
Ranking Based On Selection: 7
Maret Du Toit
Metrics
H-Index
i10 Index
Citation Counts
45
77
6,594
wine microbiology
lactic acid bacteria
malolactic fermentation
microbial wine spoilage
biopreservation
Rankings
Ranking Based On Selection: 8
Samantha Sampson
Metrics
H-Index
i10 Index
Citation Counts
38
51
4,607
Mycobacteriology
tuberculosis
host-pathogen interaction
Rankings
Ranking Based On Selection: 9
Gert Van Zyl
Metrics
H-Index
i10 Index
Citation Counts
37
88
7,817
Rankings
Ranking Based On Selection: 10
Wesaal Khan
Metrics
H-Index
i10 Index
Citation Counts
34
58
3,012

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Karin Jacobs
Metrics
H-Index
i10 Index
Citation Counts
34
71
3,991
Rankings
Ranking Based On Selection: 12
Angela Dramowski
Metrics
H-Index
i10 Index
Citation Counts
33
71
14,632
Neonatal sepsis
Bloodstream infection
Antimicrobial resistance & stewardship
Healthcare-associated infection
Infection preve
Rankings
Ranking Based On Selection: 13
Alfred Botha
Metrics
H-Index
i10 Index
Citation Counts
30
90
3,871
Rankings
Ranking Based On Selection: 14
Mathabatha Evodia Setati
Metrics
H-Index
i10 Index
Citation Counts
27
39
2,308
microbial ecology
microbial diversity
wine fermentation
non-saccharomyces yeasts
Rankings
Ranking Based On Selection: 15
Marinda Viljoen-Bloom
Metrics
H-Index
i10 Index
Citation Counts
27
47
3,256
Rankings
Ranking Based On Selection: 16
Shelly Deane
Metrics
H-Index
i10 Index
Citation Counts
22
38
1,773
Rankings
Ranking Based On Selection: 17
Sven Olaf Friedrich
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,639
Rankings
Ranking Based On Selection: 18
Marelize Botes
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,960
Rankings
Ranking Based On Selection: 19
Heinrich Volschenk
Metrics
H-Index
i10 Index
Citation Counts
17
25
1,598
microbiology
yeast biotechnology
protein engineering
proteomics
bioinformatics
Rankings
Ranking Based On Selection: 20
Karen Jacqueline Cloete
Metrics
H-Index
i10 Index
Citation Counts
13
20
862
Microbiology
Psychiatry
Ion beam analysis
Synchrotron radiation
Nanotechnology
Rankings
Ranking Based On Selection: 21
Deon Neveling
Metrics
H-Index
i10 Index
Citation Counts
12
12
590
Rankings
Ranking Based On Selection: 22
Peter Kotsoana Montso
Metrics
H-Index
i10 Index
Citation Counts
11
12
412
Microbiology
Antibiotic Resistance
Phages
Phage-Host interaction
Microbiome
Rankings
Ranking Based On Selection: 23
Byron Reeve
Metrics
H-Index
i10 Index
Citation Counts
11
11
531
Microbiology
Biotechnology
Molecular Biology
Mycobacerium Tuberculosis
Diagnostics
Rankings
Ranking Based On Selection: 24
Anna O. Okunola
Metrics
H-Index
i10 Index
Citation Counts
6
6
230
Tuberculosis
Diagnostics
Clinical Trial
Clinical Research
Milk Microbiome
Rankings
Ranking Based On Selection: 25
Ross Vermeulen
Metrics
H-Index
i10 Index
Citation Counts
6
3
76
Bacteriocins
antimicrobial peptides
toxins
fluorescent reporter systems
heterologous expression
Rankings
Ranking Based On Selection: 26
Trudy Jansen
Metrics
H-Index
i10 Index
Citation Counts
4
4
231
Rankings
Ranking Based On Selection: 27
Annica Steyn
Metrics
H-Index
i10 Index
Citation Counts
4
3
112
Rankings
Ranking Based On Selection: 28
Kim Durrell
Metrics
H-Index
i10 Index
Citation Counts
4
3
162
Rankings
Ranking Based On Selection: 29
Isa Jacoba Marx
Metrics
H-Index
i10 Index
Citation Counts
3
3
124
Rankings
Ranking Based On Selection: 30
Heidi Steffen
Metrics
H-Index
i10 Index
Citation Counts
3
2
32
Rankings
Ranking Based On Selection: 31
Elizaveta Koroleva
Metrics
H-Index
i10 Index
Citation Counts
2
1
28
Rankings
Ranking Based On Selection: 32
Megan Kode
Metrics
H-Index
i10 Index
Citation Counts
2
1
19
Rankings
Ranking Based On Selection: 33
Aza Zizipo Mqulwa
Metrics
H-Index
i10 Index
Citation Counts
1
1
26