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
Simo O Pehkonen
applied catalysis
corrosion science
photochemistry
water chemistry
Metrics
H-Index
i10 Index
Citation
60
103
11,058
* Rankings
Ranking Based On Selection :4
Linnolahti Mikko
computational chemistry
catalysis
photonics
nanomaterials
surface chemistry
Metrics
H-Index
i10 Index
Citation
35
93
3,841
Irina Levchuk
AOPs
Photocatalysis
Water treatment
Sol-Gel
Thin films
Metrics
H-Index
i10 Index
Citation
22
27
2,011
Juri Timonen
Organic Chemistry
Synthetic Chemistry
Heterocyclic Chemistry
Medicinal Chemistry
Metrics
H-Index
i10 Index
Citation
8
7
270
Mahadeo Patil
organic chemistry
medicinal chemistry
catalysis
organometallic
Metrics
H-Index
i10 Index
Citation
8
6
893
Rankings
Ranking Based On Selection: 1
Simo O Pehkonen
Metrics
H-Index
i10 Index
Citation Counts
60
103
11,058
applied catalysis
corrosion science
photochemistry
water chemistry
Rankings
Ranking Based On Selection: 2
Tarja Nurmi
Metrics
H-Index
i10 Index
Citation Counts
44
67
6,738
Rankings
Ranking Based On Selection: 3
Igor O Koshevoy
Metrics
H-Index
i10 Index
Citation Counts
37
124
4,297
Rankings
Ranking Based On Selection: 4
Linnolahti Mikko
Metrics
H-Index
i10 Index
Citation Counts
35
93
3,841
computational chemistry
catalysis
photonics
nanomaterials
surface chemistry
Rankings
Ranking Based On Selection: 5
Irina Levchuk
Metrics
H-Index
i10 Index
Citation Counts
22
27
2,011
AOPs
Photocatalysis
Water treatment
Sol-Gel
Thin films
Rankings
Ranking Based On Selection: 6
Senthil Kumar Thangaraj
Metrics
H-Index
i10 Index
Citation Counts
8
7
375
Rankings
Ranking Based On Selection: 7
Juri Timonen
Metrics
H-Index
i10 Index
Citation Counts
8
7
270
Organic Chemistry
Synthetic Chemistry
Heterocyclic Chemistry
Medicinal Chemistry
Rankings
Ranking Based On Selection: 8
Mahadeo Patil
Metrics
H-Index
i10 Index
Citation Counts
8
6
893
organic chemistry
medicinal chemistry
catalysis
organometallic