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” (1,121,291 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: 2
Shinzo Suzuki
フラーレン カーボンナノチュー�
Metrics
 
H-Index
i10 Index
Citation
65
254
20,893
* Rankings
Ranking Based On Selection: 6
Ken Motohashi
Photosynthesis
chloroplasts
redox regulatio
Metrics
 
H-Index
i10 Index
Citation
33
54
4,102
* Rankings
Ranking Based On Selection: 9
Thomas N Robb
Computer assisted language learning (CALL)
Extensive reading
Reading level assessment
Technology in language learnin
Metrics
 
H-Index
i10 Index
Citation
20
28
4,125
* Rankings
Ranking Based On Selection: 10
F M Toyama
数理物理、量子情�
Metrics
 
H-Index
i10 Index
Citation
20
32
1,258
* Rankings
Ranking Based On Selection: 11
Naohiro Hayashibara
Distributed Systems
Bio-inspired Algorithms
Distributed Algorithms
Networkin
Metrics
 
H-Index
i10 Index
Citation
18
26
1,288
* Rankings
Ranking Based On Selection: 13
Yuichiro Mishima
RNA Biology
Developmental Biology
Zebrafis
Metrics
 
H-Index
i10 Index
Citation
16
19
5,146
* Rankings
Ranking Based On Selection: 14
Yuki Okegawa
植物生理�
Metrics
 
H-Index
i10 Index
Citation
16
22
1,086
* Rankings
Ranking Based On Selection: 17
Haruaki Tamada
Software Engineering
Software Security
Source code analytics
Obfuscation
Software Birthmark
Metrics
 
H-Index
i10 Index
Citation
14
20
1,136
* Rankings
Ranking Based On Selection: 18
Toyokazu Akiyama
Distributed Systems
Internet Technology
Authentication/Authorizatio
Metrics
 
H-Index
i10 Index
Citation
13
17
554
* Rankings
Ranking Based On Selection: 22
Jungwook Shim
家族企業、企業統�
Metrics
 
H-Index
i10 Index
Citation
9
9
1,068
* Rankings
Ranking Based On Selection: 24
Takashi Hirashima
biochemistry
cell biolog
Metrics
 
H-Index
i10 Index
Citation
8
7
138
* Rankings
Ranking Based On Selection: 25
Shinya Kajitani
Labor Economics
Health Economics
Applied Econometric
Metrics
 
H-Index
i10 Index
Citation
8
6
230
Rankings
Ranking Based On Selection: 1
Koreaki Ito
Metrics
 
H-Index
i10 Index
Citation Counts
82
298
25,740
Rankings
Ranking Based On Selection: 2
Shinzo Suzuki
Metrics
 
H-Index
i10 Index
Citation Counts
65
254
20,893
フラーレン カーボンナノチュー�
Rankings
Ranking Based On Selection: 3
Kouji Segawa
Metrics
 
H-Index
i10 Index
Citation Counts
60
114
17,212
Rankings
Ranking Based On Selection: 5
Hideaki Tsuge
Metrics
 
H-Index
i10 Index
Citation Counts
34
66
3,571
Rankings
Ranking Based On Selection: 6
Ken Motohashi
Metrics
 
H-Index
i10 Index
Citation Counts
33
54
4,102
Rankings
Ranking Based On Selection: 7
Akira Kawabe
Metrics
 
H-Index
i10 Index
Citation Counts
28
46
3,026
Rankings
Ranking Based On Selection: 8
Yukiko Kawai
Metrics
 
H-Index
i10 Index
Citation Counts
23
55
1,850
Rankings
Ranking Based On Selection: 9
Thomas N Robb
Metrics
 
H-Index
i10 Index
Citation Counts
20
28
4,125
Computer assisted language learning (CALL)
Extensive reading
Reading level assessment
Technology in language learnin
Rankings
Ranking Based On Selection: 10
F M Toyama
Metrics
 
H-Index
i10 Index
Citation Counts
20
32
1,258
数理物理、量子情�
Rankings
Ranking Based On Selection: 11
Naohiro Hayashibara
Metrics
 
H-Index
i10 Index
Citation Counts
18
26
1,288
Distributed Systems
Bio-inspired Algorithms
Distributed Algorithms
Networkin
Rankings
Ranking Based On Selection: 12
Kuniyasu Saitoh
Metrics
 
H-Index
i10 Index
Citation Counts
17
22
958
Rankings
Ranking Based On Selection: 13
Yuichiro Mishima
Metrics
 
H-Index
i10 Index
Citation Counts
16
19
5,146
Rankings
Ranking Based On Selection: 14
Yuki Okegawa
Metrics
 
H-Index
i10 Index
Citation Counts
16
22
1,086
Rankings
Ranking Based On Selection: 15
Yuzo Hosono
Metrics
 
H-Index
i10 Index
Citation Counts
14
16
1,059
Rankings
Ranking Based On Selection: 16
Minoru Nakayama
Metrics
 
H-Index
i10 Index
Citation Counts
14
22
814
Rankings
Ranking Based On Selection: 17
Haruaki Tamada
Metrics
 
H-Index
i10 Index
Citation Counts
14
20
1,136
Software Engineering
Software Security
Source code analytics
Obfuscation
Software Birthmark
Rankings
Ranking Based On Selection: 18
Toyokazu Akiyama
Metrics
 
H-Index
i10 Index
Citation Counts
13
17
554
Distributed Systems
Internet Technology
Authentication/Authorizatio
Rankings
Ranking Based On Selection: 19
Shinya Ito
Metrics
 
H-Index
i10 Index
Citation Counts
11
12
1,017
Rankings
Ranking Based On Selection: 20
Hiroki Tanaka
Metrics
 
H-Index
i10 Index
Citation Counts
10
10
641
Rankings
Ranking Based On Selection: 21
Sobei H Oda
Metrics
 
H-Index
i10 Index
Citation Counts
10
10
341
Rankings
Ranking Based On Selection: 22
Jungwook Shim
Metrics
 
H-Index
i10 Index
Citation Counts
9
9
1,068
家族企業、企業統�
Rankings
Ranking Based On Selection: 23
Masahiko Iguchi
Metrics
 
H-Index
i10 Index
Citation Counts
9
9
261
Rankings
Ranking Based On Selection: 24
Takashi Hirashima
Metrics
 
H-Index
i10 Index
Citation Counts
8
7
138
Rankings
Ranking Based On Selection: 25
Shinya Kajitani
Metrics
 
H-Index
i10 Index
Citation Counts
8
6
230
Labor Economics
Health Economics
Applied Econometric