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" (870,053 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
Iain Gilmour
Cretaceous-Paleogene Boundary
Cosmochemistry
Meteorites
Meteorite Impacts
Mass extinctions
Metrics
H-Index
i10 Index
Citation
38
81
5,135
* Rankings
Ranking Based On Selection: 2
Margaret Jill Saffrey
Enteric nervous system
autonomic nervous system
ageing
development
Metrics
H-Index
i10 Index
Citation
31
54
3,315
Nicholas Power
Organic synthesis
Materials chemistry
Supramolecular chemistry
Mechanistic chemistry
Biological Chemistry
Metrics
H-Index
i10 Index
Citation
22
27
2,034
Daniel T Payne
Organic Chemistry
Supramolecular Chemistry
Catalysis
Metrics
H-Index
i10 Index
Citation
12
16
412
Anushree Srivastava
Astrobiology
Geomicrobiology
Organic Chemistry
Mars Exploration Simulation
Metrics
H-Index
i10 Index
Citation
3
3
125
Rankings
Ranking Based On Selection: 1
Iain Gilmour
Metrics
H-Index
i10 Index
Citation Counts
38
81
5,135
Cretaceous-Paleogene Boundary
Cosmochemistry
Meteorites
Meteorite Impacts
Mass extinctions
Rankings
Ranking Based On Selection: 2
Margaret Jill Saffrey
Metrics
H-Index
i10 Index
Citation Counts
31
54
3,315
Enteric nervous system
autonomic nervous system
ageing
development
Rankings
Ranking Based On Selection: 3
Simon Collinson
Metrics
H-Index
i10 Index
Citation Counts
24
42
3,179
chemistry
catalysis
recycling
waste
biomass
Rankings
Ranking Based On Selection: 4
Nicholas Power
Metrics
H-Index
i10 Index
Citation Counts
22
27
2,034
Organic synthesis
Materials chemistry
Supramolecular chemistry
Mechanistic chemistry
Biological Chemistry
Rankings
Ranking Based On Selection: 5
Daniel T Payne
Metrics
H-Index
i10 Index
Citation Counts
12
16
412
Organic Chemistry
Supramolecular Chemistry
Catalysis
Rankings
Ranking Based On Selection: 6
Pierre Ghesquiere
Metrics
H-Index
i10 Index
Citation Counts
6
4
182
Chimie Théorique et Computationnelle
Astrochimie
Rankings
Ranking Based On Selection: 7
Anushree Srivastava
Metrics
H-Index
i10 Index
Citation Counts
3
3
125
Astrobiology
Geomicrobiology
Organic Chemistry
Mars Exploration Simulation