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" (870,057 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
JJ Leahy
Chemistry
biofuels
biomedical science
chemical engineering
Metrics
H-Index
i10 Index
Citation
55
134
9,921
* Rankings
Ranking Based On Selection: 3
Kevin M Ryan
Nanomaterials
Nanorods
Nanowires
batteries
Metrics
H-Index
i10 Index
Citation
52
149
9,734
* Rankings
Ranking Based On Selection: 4
Tewfik Soulimane
Membrane Protein Structural and Functional Biology
Metrics
H-Index
i10 Index
Citation
38
98
5,463
* Rankings
Ranking Based On Selection: 5
Matthias Vandichel
computational chemistry
(electro)catalysis
chemical engineering
multiscale modelling
Metrics
H-Index
i10 Index
Citation
34
62
5,445
* Rankings
Ranking Based On Selection: 6
Micheál D Scanlon
Electrochemistry
liquid-liquid electrochemistry
soft interfaces
conducting polymers
Metrics
H-Index
i10 Index
Citation
34
56
4,947
* Rankings
Ranking Based On Selection: 7
Denise Croker
Pharmaceutical Manufacturing
Crystallization
Cocrystals
Process Development
Process Analytical Technology
Metrics
H-Index
i10 Index
Citation
32
53
3,664
* Rankings
Ranking Based On Selection: 8
Rama Krishna Rao Gamidi
Organic Supramolecular Chemistry: Crystal Engineering
Metrics
H-Index
i10 Index
Citation
31
60
3,164
* Rankings
Ranking Based On Selection: 10
Sarah Hudson
enzymes
biocatalysis
biomaterials
drug delivery
crystallisation
Metrics
H-Index
i10 Index
Citation
27
51
3,904

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Rankings
Ranking Based On Selection: 11
Vasily Lebedev
High resolution TEM
EELS
anomalous XRD
Metrics
H-Index
i10 Index
Citation
20
38
1,382
* Rankings
Ranking Based On Selection: 13
Naveen Kumar
Synthetic MOF chemistry
MOF monoliths
Trace Carbon Capture
Carbon Negative Technologies
Metrics
H-Index
i10 Index
Citation
13
16
817
* Rankings
Ranking Based On Selection: 14
Javed Iqbal
Drug Delivery
Food Safety
Analytical Chemistry
Cleaning Validation
Metrics
H-Index
i10 Index
Citation
11
11
499
* Rankings
Ranking Based On Selection: 16
Rahamatullah Shaikh
Drug formulation development
Drug delivery
Continuous pharmaceutical manufacturing
Metrics
H-Index
i10 Index
Citation
10
10
1,350
* Rankings
Ranking Based On Selection: 17
Hamid Hafizi
Organic Chemistry
Heterogeneous Catalysis
Biomass Valorization
Mesoporous Silica
Nanomaterials
Metrics
H-Index
i10 Index
Citation
9
9
360
* Rankings
Ranking Based On Selection: 18
Nicolas Aramouni
Catalysis
syngas
reforming
biofuels
process analytical technology
Metrics
H-Index
i10 Index
Citation
8
7
1,216
* Rankings
Ranking Based On Selection: 19
Amin Koochaki
Computational Chemistry
Porous Materials-MOFs
Adsorption
CO2 Capture
Process Modelling
Metrics
H-Index
i10 Index
Citation
7
5
284
* Rankings
Ranking Based On Selection: 20
Raju Lipin
Computational Chemistry
Electrocatalysis
Chemical Education
Metrics
H-Index
i10 Index
Citation
6
6
128
* Rankings
Ranking Based On Selection: 24
Alan Calvin Eaby|Alan Eaby
supramolecular chemistry
crystal engineering
materials chemistry
solid-state chemistry
porous materials
Metrics
H-Index
i10 Index
Citation
3
2
49
* Rankings
Ranking Based On Selection: 25
Amol N Joshi
Catalysis
Hydrogen Production
Continuous Manufacturing
Reactor Engineering
Metrics
H-Index
i10 Index
Citation
3
2
35
Rankings
Ranking Based On Selection: 1
Julian RH Ross
Metrics
H-Index
i10 Index
Citation Counts
64
173
15,897
Rankings
Ranking Based On Selection: 2
JJ Leahy
Metrics
H-Index
i10 Index
Citation Counts
55
134
9,921
Chemistry
biofuels
biomedical science
chemical engineering
Rankings
Ranking Based On Selection: 3
Kevin M Ryan
Metrics
H-Index
i10 Index
Citation Counts
52
149
9,734
Rankings
Ranking Based On Selection: 4
Tewfik Soulimane
Metrics
H-Index
i10 Index
Citation Counts
38
98
5,463
Membrane Protein Structural and Functional Biology
Rankings
Ranking Based On Selection: 5
Matthias Vandichel
Metrics
H-Index
i10 Index
Citation Counts
34
62
5,445
computational chemistry
(electro)catalysis
chemical engineering
multiscale modelling
Rankings
Ranking Based On Selection: 6
Micheál D Scanlon
Metrics
H-Index
i10 Index
Citation Counts
34
56
4,947
Electrochemistry
liquid-liquid electrochemistry
soft interfaces
conducting polymers
Rankings
Ranking Based On Selection: 7
Denise Croker
Metrics
H-Index
i10 Index
Citation Counts
32
53
3,664
Pharmaceutical Manufacturing
Crystallization
Cocrystals
Process Development
Process Analytical Technology
Rankings
Ranking Based On Selection: 8
Rama Krishna Rao Gamidi
Metrics
H-Index
i10 Index
Citation Counts
31
60
3,164
Organic Supramolecular Chemistry: Crystal Engineering
Rankings
Ranking Based On Selection: 9
Fathima Laffir
Metrics
H-Index
i10 Index
Citation Counts
30
72
3,477
Rankings
Ranking Based On Selection: 10
Sarah Hudson
Metrics
H-Index
i10 Index
Citation Counts
27
51
3,904
enzymes
biocatalysis
biomaterials
drug delivery
crystallisation

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Vasily Lebedev
Metrics
H-Index
i10 Index
Citation Counts
20
38
1,382
Rankings
Ranking Based On Selection: 12
Ryan Lacdao Arevalo
Metrics
H-Index
i10 Index
Citation Counts
14
24
652
Rankings
Ranking Based On Selection: 13
Naveen Kumar
Metrics
H-Index
i10 Index
Citation Counts
13
16
817
Synthetic MOF chemistry
MOF monoliths
Trace Carbon Capture
Carbon Negative Technologies
Rankings
Ranking Based On Selection: 14
Javed Iqbal
Metrics
H-Index
i10 Index
Citation Counts
11
11
499
Drug Delivery
Food Safety
Analytical Chemistry
Cleaning Validation
Rankings
Ranking Based On Selection: 15
Sinéad M Burke
Metrics
H-Index
i10 Index
Citation Counts
11
11
3,155
Rankings
Ranking Based On Selection: 16
Rahamatullah Shaikh
Metrics
H-Index
i10 Index
Citation Counts
10
10
1,350
Drug formulation development
Drug delivery
Continuous pharmaceutical manufacturing
Rankings
Ranking Based On Selection: 17
Hamid Hafizi
Metrics
H-Index
i10 Index
Citation Counts
9
9
360
Organic Chemistry
Heterogeneous Catalysis
Biomass Valorization
Mesoporous Silica
Nanomaterials
Rankings
Ranking Based On Selection: 18
Nicolas Aramouni
Metrics
H-Index
i10 Index
Citation Counts
8
7
1,216
Catalysis
syngas
reforming
biofuels
process analytical technology
Rankings
Ranking Based On Selection: 19
Amin Koochaki
Metrics
H-Index
i10 Index
Citation Counts
7
5
284
Computational Chemistry
Porous Materials-MOFs
Adsorption
CO2 Capture
Process Modelling
Rankings
Ranking Based On Selection: 20
Raju Lipin
Metrics
H-Index
i10 Index
Citation Counts
6
6
128
Computational Chemistry
Electrocatalysis
Chemical Education
Rankings
Ranking Based On Selection: 21
Simin Arshi
Metrics
H-Index
i10 Index
Citation Counts
6
5
151
Rankings
Ranking Based On Selection: 22
Italo Pisano'
Metrics
H-Index
i10 Index
Citation Counts
6
5
115
Rankings
Ranking Based On Selection: 23
Teresa B Tierney
Metrics
H-Index
i10 Index
Citation Counts
3
3
83
Rankings
Ranking Based On Selection: 24
Alan Calvin Eaby|Alan Eaby
Metrics
H-Index
i10 Index
Citation Counts
3
2
49
supramolecular chemistry
crystal engineering
materials chemistry
solid-state chemistry
porous materials
Rankings
Ranking Based On Selection: 25
Amol N Joshi
Metrics
H-Index
i10 Index
Citation Counts
3
2
35
Catalysis
Hydrogen Production
Continuous Manufacturing
Reactor Engineering
Rankings
Ranking Based On Selection: 26
Amol Gode
Metrics
H-Index
i10 Index
Citation Counts
2
1
33