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 :1
Sheena Kumari
Environmental Microbiology
Molecular Biology
Emerging Pathogens
Wastewater Treatment
Bioenergy from waste streams
Metrics
H-Index
i10 Index
Citation
37
76
5,806
* Rankings
Ranking Based On Selection :3
Feroz Mahomed Swalaha
Biology
Microbiology
Biotechnology
Computational Biology
Metrics
H-Index
i10 Index
Citation
20
26
1,192
Luveshan Ramanna
Microalgal propagation
Photosynthesis
CO2 sequestration
Wastewater nutrient removal
Metrics
H-Index
i10 Index
Citation
8
8
1,054
Praveen Kumar Pandey
Environmental Microbiology and Biotechnology
Host-microbe Interactions
Metrics
H-Index
i10 Index
Citation
6
6
638
Karen Reddy
Biotechnology
Wastewater Treatment
Biogas production
Algal Research
Metrics
H-Index
i10 Index
Citation
4
3
358
Indrani Hazel Govender
Ecological risk
Water Resources management
Sustainability and Conservation
Urban ecology
Metrics
H-Index
i10 Index
Citation
2
1
32
Zikho Qwatekana
Ecotourism
Land Claims
Community Development
Higher Education
Metrics
H-Index
i10 Index
Citation
2
0
11
Rankings
Ranking Based On Selection: 1
Sheena Kumari
Metrics
H-Index
i10 Index
Citation Counts
37
76
5,806
Environmental Microbiology
Molecular Biology
Emerging Pathogens
Wastewater Treatment
Bioenergy from waste streams
Rankings
Ranking Based On Selection: 2
Kugen Permaul
Metrics
H-Index
i10 Index
Citation Counts
30
44
2,794
Rankings
Ranking Based On Selection: 3
Feroz Mahomed Swalaha
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,192
Biology
Microbiology
Biotechnology
Computational Biology
Rankings
Ranking Based On Selection: 4
Luveshan Ramanna
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,054
Microalgal propagation
Photosynthesis
CO2 sequestration
Wastewater nutrient removal
Rankings
Ranking Based On Selection: 5
Charlene Pillay
Metrics
H-Index
i10 Index
Citation Counts
8
8
661
Microbiology
Virology and Immunology
Biotechnology
Rankings
Ranking Based On Selection: 6
Praveen Kumar Pandey
Metrics
H-Index
i10 Index
Citation Counts
6
6
638
Environmental Microbiology and Biotechnology
Host-microbe Interactions
Rankings
Ranking Based On Selection: 7
Karen Reddy
Metrics
H-Index
i10 Index
Citation Counts
4
3
358
Biotechnology
Wastewater Treatment
Biogas production
Algal Research
Rankings
Ranking Based On Selection: 8
Indrani Hazel Govender
Metrics
H-Index
i10 Index
Citation Counts
2
1
32
Ecological risk
Water Resources management
Sustainability and Conservation
Urban ecology
Rankings
Ranking Based On Selection: 9
Zikho Qwatekana
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Ecotourism
Land Claims
Community Development
Higher Education