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" (941,641 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: 2
William V. Holt
reproduction
conservation
cryobiology
spermatozoa
Metrics
H-Index
i10 Index
Citation
70
193
15,382
* Rankings
Ranking Based On Selection: 3
John G Ewen
Recovery of small populations
Metrics
H-Index
i10 Index
Citation
46
124
6,427
* Rankings
Ranking Based On Selection: 4
Anthony W Sainsbury
disease
translocation
wild animals
conservation
reintroduction
Metrics
H-Index
i10 Index
Citation
33
65
3,419
* Rankings
Ranking Based On Selection: 5
Louise Mcrae
Conservation Science
Metrics
H-Index
i10 Index
Citation
30
46
10,380
Bethany R. Smith
wildlife conservation science
Metrics
H-Index
i10 Index
Citation
8
6
156
Caio F Kenup
Conservation Biology
Population Ecology
Reintroduction Biology
Wildlife Management
Metrics
H-Index
i10 Index
Citation
6
6
184

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* Rankings
Ranking Based On Selection: 11
Donal Smith
Threatened species and ecosystem recovery
Metrics
H-Index
i10 Index
Citation
5
5
146
* Rankings
Ranking Based On Selection: 12
Henry Hakkinen
seabirds
conservation
climate change
invasive species
biogeography
Metrics
H-Index
i10 Index
Citation
4
3
76
* Rankings
Ranking Based On Selection: 13
William Farren
Spatial Ecology
Ecosystem function
Megafauna
Metrics
H-Index
i10 Index
Citation
1
0
3
Rankings
Ranking Based On Selection: 1
Paul Jepson
Metrics
H-Index
i10 Index
Citation Counts
70
194
18,326
Rankings
Ranking Based On Selection: 2
William V. Holt
Metrics
H-Index
i10 Index
Citation Counts
70
193
15,382
reproduction
conservation
cryobiology
spermatozoa
Rankings
Ranking Based On Selection: 3
John G Ewen
Metrics
H-Index
i10 Index
Citation Counts
46
124
6,427
Recovery of small populations
Rankings
Ranking Based On Selection: 4
Anthony W Sainsbury
Metrics
H-Index
i10 Index
Citation Counts
33
65
3,419
disease
translocation
wild animals
conservation
reintroduction
Rankings
Ranking Based On Selection: 5
Louise Mcrae
Metrics
H-Index
i10 Index
Citation Counts
30
46
10,380
Rankings
Ranking Based On Selection: 6
Kevin Peter Hopkins
Metrics
H-Index
i10 Index
Citation Counts
17
23
1,086
Rankings
Ranking Based On Selection: 7
Claire Collins
Metrics
H-Index
i10 Index
Citation Counts
8
7
219
Rankings
Ranking Based On Selection: 8
Bethany R. Smith
Metrics
H-Index
i10 Index
Citation Counts
8
6
156
wildlife conservation science
Rankings
Ranking Based On Selection: 9
Caio F Kenup
Metrics
H-Index
i10 Index
Citation Counts
6
6
184
Conservation Biology
Population Ecology
Reintroduction Biology
Wildlife Management
Rankings
Ranking Based On Selection: 10
Helen O'Neill
Metrics
H-Index
i10 Index
Citation Counts
6
5
372

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
Donal Smith
Metrics
H-Index
i10 Index
Citation Counts
5
5
146
Threatened species and ecosystem recovery
Rankings
Ranking Based On Selection: 12
Henry Hakkinen
Metrics
H-Index
i10 Index
Citation Counts
4
3
76
seabirds
conservation
climate change
invasive species
biogeography
Rankings
Ranking Based On Selection: 13
William Farren
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
Spatial Ecology
Ecosystem function
Megafauna