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 rankings in world, region, country, and university are in Beta version and are subject to real-time updates, since the subject field “Others” (1,120,277 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded. These rankings will dynamically evolve in real time as the “Others” profiles are revised and classified. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Jaakko Tuomilehto
Public Health
Epidemiology
Diabetes
Cardiovascular Disease
Metrics
 
H-Index
i10 Index
Citation
298
1,581
519,570
* Rankings
Ranking Based On Selection: 3
Jaakko Kaprio
genetic epidemiology
substance use
sleep
obesity
physical inactivity
Metrics
 
H-Index
i10 Index
Citation
202
1,246
218,907
* Rankings
Ranking Based On Selection: 4
Eija Tuominen
semiconductors
detectors
nanoelectronics
particle physics
quantum technologies
Metrics
 
H-Index
i10 Index
Citation
190
787
205,346
* Rankings
Ranking Based On Selection: 5
Jaakko Härkönen
Silicon detectors
radiation hardness
high energy physics instrumentation
Metrics
 
H-Index
i10 Index
Citation
179
431
163,188
* Rankings
Ranking Based On Selection: 7
Hannele Yki Järvinen
NAFLD NASH CIRRHOSIS
Metrics
 
H-Index
i10 Index
Citation
149
436
83,409
* Rankings
Ranking Based On Selection: 8
Mikael Knip
lasten immunivälitteiset sairaudet
Metrics
 
H-Index
i10 Index
Citation
136
645
66,561
* Rankings
Ranking Based On Selection: 12
Joona Havukainen
particle physics
machine learning
Metrics
 
H-Index
i10 Index
Citation
118
469
53,219
* Rankings
Ranking Based On Selection: 16
Yrjö Engeström
activity theory
expansive learnin
Metrics
 
H-Index
i10 Index
Citation
106
248
90,711
* Rankings
Ranking Based On Selection: 18
Jorma Paavonen
lääketiede
Metrics
 
H-Index
i10 Index
Citation
103
404
43,418
* Rankings
Ranking Based On Selection: 19
Markku Partinen
Sleep research
traffic medicine
narcolepsy
sleep apnea
insomnia
Metrics
 
H-Index
i10 Index
Citation
101
320
33,965
* Rankings
Ranking Based On Selection: 21
Kimmo Alho
Cognitive Neuroscience
Experimental Psychology
Attention
Memory
Metrics
 
H-Index
i10 Index
Citation
95
191
34,543
* Rankings
Ranking Based On Selection: 23
Seppo Meri
complement
parasites
Metrics
 
H-Index
i10 Index
Citation
94
310
28,379
* Rankings
Ranking Based On Selection: 24
Atte Meretoja
stroke
epidemiology
pharmacoeconomics
Metrics
 
H-Index
i10 Index
Citation
92
169
152,679
* Rankings
Ranking Based On Selection: 25
Jouni Hirvonen
pharmaceutical technology
drug delivery
nanotechnology
transdermal
Metrics
 
H-Index
i10 Index
Citation
92
285
26,015
Rankings
Ranking Based On Selection: 1
Jaakko Tuomilehto
Metrics
 
H-Index
i10 Index
Citation Counts
298
1,581
519,570
Rankings
Ranking Based On Selection: 2
Mika Kivimaki
Metrics
 
H-Index
i10 Index
Citation Counts
230
1,337
368,670
Rankings
Ranking Based On Selection: 3
Jaakko Kaprio
Metrics
 
H-Index
i10 Index
Citation Counts
202
1,246
218,907
genetic epidemiology
substance use
sleep
obesity
physical inactivity
Rankings
Ranking Based On Selection: 4
Eija Tuominen
Metrics
 
H-Index
i10 Index
Citation Counts
190
787
205,346
semiconductors
detectors
nanoelectronics
particle physics
quantum technologies
Rankings
Ranking Based On Selection: 5
Jaakko Härkönen
Metrics
 
H-Index
i10 Index
Citation Counts
179
431
163,188
Silicon detectors
radiation hardness
high energy physics instrumentation
Rankings
Ranking Based On Selection: 6
Aarno Palotie
Metrics
 
H-Index
i10 Index
Citation Counts
167
610
209,178
Rankings
Ranking Based On Selection: 7
Hannele Yki Järvinen
Metrics
 
H-Index
i10 Index
Citation Counts
149
436
83,409
Rankings
Ranking Based On Selection: 8
Mikael Knip
Metrics
 
H-Index
i10 Index
Citation Counts
136
645
66,561
lasten immunivälitteiset sairaudet
Rankings
Ranking Based On Selection: 9
Hanski I
Metrics
 
H-Index
i10 Index
Citation Counts
130
360
76,451
Rankings
Ranking Based On Selection: 10
Samuli Ripatti
Metrics
 
H-Index
i10 Index
Citation Counts
126
330
93,787
Rankings
Ranking Based On Selection: 11
Hannu Siikonen
Metrics
 
H-Index
i10 Index
Citation Counts
119
470
53,389
Rankings
Ranking Based On Selection: 12
Joona Havukainen
Metrics
 
H-Index
i10 Index
Citation Counts
118
469
53,219
Rankings
Ranking Based On Selection: 13
Markku Leskela
Metrics
 
H-Index
i10 Index
Citation Counts
117
700
58,789
Rankings
Ranking Based On Selection: 14
Irma Thesleff
Metrics
 
H-Index
i10 Index
Citation Counts
117
274
44,227
Rankings
Ranking Based On Selection: 15
Katariina Salmela Aro
Metrics
 
H-Index
i10 Index
Citation Counts
107
330
37,266
Rankings
Ranking Based On Selection: 16
Yrjö Engeström
Metrics
 
H-Index
i10 Index
Citation Counts
106
248
90,711
Rankings
Ranking Based On Selection: 17
Hannu Kurki Suonio
Metrics
 
H-Index
i10 Index
Citation Counts
103
249
88,971
Rankings
Ranking Based On Selection: 18
Jorma Paavonen
Metrics
 
H-Index
i10 Index
Citation Counts
103
404
43,418
Rankings
Ranking Based On Selection: 19
Markku Partinen
Metrics
 
H-Index
i10 Index
Citation Counts
101
320
33,965
Sleep research
traffic medicine
narcolepsy
sleep apnea
insomnia
Rankings
Ranking Based On Selection: 20
Kai Nordlund
Metrics
 
H-Index
i10 Index
Citation Counts
95
486
35,629
Rankings
Ranking Based On Selection: 21
Kimmo Alho
Metrics
 
H-Index
i10 Index
Citation Counts
95
191
34,543
Cognitive Neuroscience
Experimental Psychology
Attention
Memory
Rankings
Ranking Based On Selection: 22
Jari Lahti
Metrics
 
H-Index
i10 Index
Citation Counts
94
246
30,326
Rankings
Ranking Based On Selection: 23
Seppo Meri
Metrics
 
H-Index
i10 Index
Citation Counts
94
310
28,379
Rankings
Ranking Based On Selection: 24
Atte Meretoja
Metrics
 
H-Index
i10 Index
Citation Counts
92
169
152,679
Rankings
Ranking Based On Selection: 25
Jouni Hirvonen
Metrics
 
H-Index
i10 Index
Citation Counts
92
285
26,015
pharmaceutical technology
drug delivery
nanotechnology
transdermal