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" (873,922 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
Richa Kothari
Bioenergy Production (Bio-Hydrogen & Biofuel)
Wastewater treatment technologies
Renewable energy
Metrics
H-Index
i10 Index
Citation
42
94
7,832
Pankaj Mehta
Water chemistry
Soil geochemistry
Analytical Techniques
Method Validation
Uncertainity estimation
Metrics
H-Index
i10 Index
Citation
12
13
775
Raja Waqar Ahmed Khan
Plant Ecology
Environmental Science
Soil and Biodiversity Conservation
Climate Change and Global Warming
Metrics
H-Index
i10 Index
Citation
7
5
146
Kiran Kumari
Bioaerosols
Ice nucleating particles
Infectious disease transmission
Metrics
H-Index
i10 Index
Citation
1
1
32
Rankings
Ranking Based On Selection: 1
Richa Kothari
Metrics
H-Index
i10 Index
Citation Counts
42
94
7,832
Bioenergy Production (Bio-Hydrogen & Biofuel)
Wastewater treatment technologies
Renewable energy
Rankings
Ranking Based On Selection: 3
Pankaj Mehta
Metrics
H-Index
i10 Index
Citation Counts
12
13
775
Water chemistry
Soil geochemistry
Analytical Techniques
Method Validation
Uncertainity estimation
Rankings
Ranking Based On Selection: 4
Rakesh Kumar
Metrics
H-Index
i10 Index
Citation Counts
8
7
312
Rankings
Ranking Based On Selection: 5
Md.Sarfaraz Asgher
Metrics
H-Index
i10 Index
Citation Counts
8
8
239
Rankings
Ranking Based On Selection: 6
Raja Waqar Ahmed Khan
Metrics
H-Index
i10 Index
Citation Counts
7
5
146
Plant Ecology
Environmental Science
Soil and Biodiversity Conservation
Climate Change and Global Warming
Rankings
Ranking Based On Selection: 7
Rajkumar Rampal
Metrics
H-Index
i10 Index
Citation Counts
4
1
63
Rankings
Ranking Based On Selection: 8
Kiran Kumari
Metrics
H-Index
i10 Index
Citation Counts
1
1
32
Bioaerosols
Ice nucleating particles
Infectious disease transmission