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
Robert C Reynolds
medicinal chemistry
drug design and synthesis
antitubercular drug design
Metrics
H-Index
i10 Index
Citation
51
111
8,284
Tarun Arora
Pharmacoepidemiology/Pharmacovigilance
Medicare-Medicaid
Biostatistics
SAS
R
Metrics
H-Index
i10 Index
Citation
19
29
1,507
Norio Yasui
Radiochemisty
Radiopharmaceutics
Orniganic synthesis
medicinal chemistry
Metrics
H-Index
i10 Index
Citation
10
10
630
Rankings
Ranking Based On Selection: 1
Robert C Reynolds
Metrics
H-Index
i10 Index
Citation Counts
51
111
8,284
medicinal chemistry
drug design and synthesis
antitubercular drug design
Rankings
Ranking Based On Selection: 2
James Austin Mobley
Metrics
H-Index
i10 Index
Citation Counts
48
90
8,193
Rankings
Ranking Based On Selection: 3
John J Shacka *
Metrics
H-Index
i10 Index
Citation Counts
37
43
18,595
Rankings
Ranking Based On Selection: 4
Tarun Arora
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,507
Pharmacoepidemiology/Pharmacovigilance
Medicare-Medicaid
Biostatistics
SAS
R
Rankings
Ranking Based On Selection: 5
Norio Yasui
Metrics
H-Index
i10 Index
Citation Counts
10
10
630
Radiochemisty
Radiopharmaceutics
Orniganic synthesis
medicinal chemistry