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" (870,053 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
Jes Vollertsen
Urban waters
wastewater collection systems
stormwater management systems
microplastic quantification
wastewater treatment te
Metrics
H-Index
i10 Index
Citation
56
146
11,633
* Rankings
Ranking Based On Selection: 6
Niels Thomas Eriksen
Bioprocess technology
fermentation
microalgae
bioreactors
insect production
Metrics
H-Index
i10 Index
Citation
26
38
3,544
* Rankings
Ranking Based On Selection: 7
Jens Muff
Environmental engineering
environmental chemistry
remediation
water treatment
Metrics
H-Index
i10 Index
Citation
21
34
1,657
* Rankings
Ranking Based On Selection: 8
Søren Løkke
LCA
environmental management
Chemicals
environmental policy
Metrics
H-Index
i10 Index
Citation
14
18
1,439
Jaqueline Godoy
Innovation
Sustainability
Circular Economy
Environmental Engineering
Metrics
H-Index
i10 Index
Citation
4
2
53
Rankings
Ranking Based On Selection: 1
Per Moldrup
Metrics
H-Index
i10 Index
Citation Counts
71
267
17,137
Rankings
Ranking Based On Selection: 2
Jes Vollertsen
Metrics
H-Index
i10 Index
Citation Counts
56
146
11,633
Urban waters
wastewater collection systems
stormwater management systems
microplastic quantification
wastewater treatment te
Rankings
Ranking Based On Selection: 3
Morten Lykkegaard Christensen
Metrics
H-Index
i10 Index
Citation Counts
33
85
4,044
Rankings
Ranking Based On Selection: 4
Asbjørn Haaning Nielsen
Metrics
H-Index
i10 Index
Citation Counts
31
68
3,904
Rankings
Ranking Based On Selection: 6
Niels Thomas Eriksen
Metrics
H-Index
i10 Index
Citation Counts
26
38
3,544
Bioprocess technology
fermentation
microalgae
bioreactors
insect production
Rankings
Ranking Based On Selection: 7
Jens Muff
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,657
Environmental engineering
environmental chemistry
remediation
water treatment
Rankings
Ranking Based On Selection: 8
Søren Løkke
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,439
Rankings
Ranking Based On Selection: 9
Lucian Iordachescu
Metrics
H-Index
i10 Index
Citation Counts
8
5
459
Rankings
Ranking Based On Selection: 10
Jaqueline Godoy
Metrics
H-Index
i10 Index
Citation Counts
4
2
53
Innovation
Sustainability
Circular Economy
Environmental Engineering