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 :2
Aage Haugen
Cancer
lung cancer
genetic susceptibility
carcinogenesis
toxicology
Metrics
H-Index
i10 Index
Citation
71
169
18,041
* Rankings
Ranking Based On Selection :3
Morten Birkeland Nielsen
Research methods and design
workplace bullying/aggression
workplace safety
psychosocial work factors
mental health
Metrics
H-Index
i10 Index
Citation
56
110
15,334
* Rankings
Ranking Based On Selection :4
Tore Tynes
kreftepidemiologi
arbeidsmiljø og helse
Metrics
H-Index
i10 Index
Citation
50
81
10,074
* Rankings
Ranking Based On Selection :5
Stein Knardahl
Psychophysiology
stress
pain
cardiovascular
work environment
Metrics
H-Index
i10 Index
Citation
49
114
7,835
* Rankings
Ranking Based On Selection :6
Vidar Skaug
toksikologi helse arbeid medisin sydomsårsaker
Metrics
H-Index
i10 Index
Citation
43
86
8,186
* Rankings
Ranking Based On Selection :7
Shanbeh Zienolddiny
Carcinogenesis
Genetics
Occupational health
Metrics
H-Index
i10 Index
Citation
42
87
6,518
* Rankings
Ranking Based On Selection :8
Petter Kristensen
epidemiology
reproductive epidemiology
social inequalities in health
epidemiologic methods
Metrics
H-Index
i10 Index
Citation
39
78
5,643
* Rankings
Ranking Based On Selection :14
Dagfinn Matre
smerte
søvn
muskelskjelettplager
Metrics
H-Index
i10 Index
Citation
22
36
2,404
* Rankings
Ranking Based On Selection :20
Anani Komlavi Afanou
Exposure assessments
Microbiology
Occupational Health
in vitro exposure
Metrics
H-Index
i10 Index
Citation
14
18
483
* Rankings
Ranking Based On Selection :22
Suzanne Merkus
epidemiology
occupational health
sick leave
musculoskeletal disorders
shift work
Metrics
H-Index
i10 Index
Citation
10
10
741
* Rankings
Ranking Based On Selection :23
Susann Wolf
Toxicology
Nanomaterials
Biomaterials
Molecular Medicine
Metrics
H-Index
i10 Index
Citation
6
6
309
Graciela López-Soop
Molecular biology
Cell signaling
Epigenetics
Transcriptomics
Human Toxicology
Metrics
H-Index
i10 Index
Citation
3
3
97
Fikirte Debebe Zegeye
Shellfish allergens
occupational allergy and asthma
Metrics
H-Index
i10 Index
Citation
2
1
20
Rankings
Ranking Based On Selection: 1
Håkan Wallin
Metrics
H-Index
i10 Index
Citation Counts
81
202
19,044
Rankings
Ranking Based On Selection: 2
Aage Haugen
Metrics
H-Index
i10 Index
Citation Counts
71
169
18,041
Cancer
lung cancer
genetic susceptibility
carcinogenesis
toxicology
Rankings
Ranking Based On Selection: 3
Morten Birkeland Nielsen
Metrics
H-Index
i10 Index
Citation Counts
56
110
15,334
Research methods and design
workplace bullying/aggression
workplace safety
psychosocial work factors
mental health
Rankings
Ranking Based On Selection: 4
Tore Tynes
Metrics
H-Index
i10 Index
Citation Counts
50
81
10,074
kreftepidemiologi
arbeidsmiljø og helse
Rankings
Ranking Based On Selection: 5
Stein Knardahl
Metrics
H-Index
i10 Index
Citation Counts
49
114
7,835
Psychophysiology
stress
pain
cardiovascular
work environment
Rankings
Ranking Based On Selection: 6
Vidar Skaug
Metrics
H-Index
i10 Index
Citation Counts
43
86
8,186
toksikologi helse arbeid medisin sydomsårsaker
Rankings
Ranking Based On Selection: 7
Shanbeh Zienolddiny
Metrics
H-Index
i10 Index
Citation Counts
42
87
6,518
Carcinogenesis
Genetics
Occupational health
Rankings
Ranking Based On Selection: 8
Petter Kristensen
Metrics
H-Index
i10 Index
Citation Counts
39
78
5,643
epidemiology
reproductive epidemiology
social inequalities in health
epidemiologic methods
Rankings
Ranking Based On Selection: 9
Øivind Skare
Metrics
H-Index
i10 Index
Citation Counts
32
64
3,554
Rankings
Ranking Based On Selection: 10
Johannes Gjerstad
Metrics
H-Index
i10 Index
Citation Counts
31
64
2,713
Rankings
Ranking Based On Selection: 11
Steen Mollerup
Metrics
H-Index
i10 Index
Citation Counts
28
41
3,111
Rankings
Ranking Based On Selection: 12
Tom Sterud
Metrics
H-Index
i10 Index
Citation Counts
25
34
2,681
Rankings
Ranking Based On Selection: 13
Marit Skogstad
Metrics
H-Index
i10 Index
Citation Counts
25
44
2,697
Rankings
Ranking Based On Selection: 14
Dagfinn Matre
Metrics
H-Index
i10 Index
Citation Counts
22
36
2,404
smerte
søvn
muskelskjelettplager
Rankings
Ranking Based On Selection: 15
Fred Haugen
Metrics
H-Index
i10 Index
Citation Counts
22
29
2,981
Rankings
Ranking Based On Selection: 17
Jan Olav Christensen
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,524
Rankings
Ranking Based On Selection: 18
Berit Bakke
Metrics
H-Index
i10 Index
Citation Counts
21
25
1,381
Rankings
Ranking Based On Selection: 19
Håkon A. Johannessen
Metrics
H-Index
i10 Index
Citation Counts
18
22
1,835
Occupational Epidemiology
Rankings
Ranking Based On Selection: 20
Anani Komlavi Afanou
Metrics
H-Index
i10 Index
Citation Counts
14
18
483
Exposure assessments
Microbiology
Occupational Health
in vitro exposure
Rankings
Ranking Based On Selection: 21
Jose Hernan Alfonso
Metrics
H-Index
i10 Index
Citation Counts
12
13
624
Occupational Medicine
Dermatology
Health Promotion
Public Health
Rankings
Ranking Based On Selection: 22
Suzanne Merkus
Metrics
H-Index
i10 Index
Citation Counts
10
10
741
epidemiology
occupational health
sick leave
musculoskeletal disorders
shift work
Rankings
Ranking Based On Selection: 23
Susann Wolf
Metrics
H-Index
i10 Index
Citation Counts
6
6
309
Toxicology
Nanomaterials
Biomaterials
Molecular Medicine
Rankings
Ranking Based On Selection: 25
Graciela López-Soop
Metrics
H-Index
i10 Index
Citation Counts
3
3
97
Molecular biology
Cell signaling
Epigenetics
Transcriptomics
Human Toxicology
Rankings
Ranking Based On Selection: 26
lung cancer
EMT
epigenetics
steroid signalling
toxicology
Rankings
Ranking Based On Selection: 27
Fikirte Debebe Zegeye
Metrics
H-Index
i10 Index
Citation Counts
2
1
20
Shellfish allergens
occupational allergy and asthma