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" (873,690 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: 1
Kevin O Shea
Environmental Chemistry
Photochemistry and Reactive Intermediates
Metrics
H-Index
i10 Index
Citation
67
135
17,910
* Rankings
Ranking Based On Selection: 3
Bruce Mccord
forensic science
genomics
analytical chemistry
Metrics
H-Index
i10 Index
Citation
49
130
8,107
* Rankings
Ranking Based On Selection: 4
Stanislaw F Wnuk
Chemistry
organic synthesis
medicinal chemistry
Metrics
H-Index
i10 Index
Citation
38
117
4,617
Natalia Soares Quinete
Environmental Analytical Chemistry
Environmental Heath
Metrics
H-Index
i10 Index
Citation
25
48
1,999
Meilian Chen
organic biogeochemistry
aquatic ecosystems
environmental science
Metrics
H-Index
i10 Index
Citation
24
31
2,158
* Rankings
Ranking Based On Selection: 10
Komal Kalani
Protein Crystallography
Solid Phase Synthesis
Medicinal and Natural Product Chemistry
Computational Chemistry
Neurodegenerat
Metrics
H-Index
i10 Index
Citation
17
21
838

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* Rankings
Ranking Based On Selection: 13
Mayrén Echeverria Boan
Corrosion
Concrete
Coatings
Electrochemistry
Composites
Metrics
H-Index
i10 Index
Citation
13
17
439
* Rankings
Ranking Based On Selection: 14
Grover Larkins
superconductivity
materials
interfaces
surface chemistry
langmuir blodgett
Metrics
H-Index
i10 Index
Citation
13
21
596
* Rankings
Ranking Based On Selection: 15
Dennys Leyva
Analytical Chemistry Mass Spectrometry Ion mobility Spectrometry Liquid Chromatography
Metrics
H-Index
i10 Index
Citation
10
10
286
Ramon Lopez De La Vega
Inorganic Chemistry
Reaction Mechanisms
Thermochemistry
Chemical Education
Metrics
H-Index
i10 Index
Citation
10
10
434
Am Abdullah
Analytical Chemistry
Oligonucleotide Mass spectrometry
Water Treatment
Pharmacology
Perfluoroalkyl substances
Metrics
H-Index
i10 Index
Citation
8
4
218
Shambhu Kandel
Chemistry (inorganic
nuclear
analytical
environmental)
Metrics
H-Index
i10 Index
Citation
6
4
88
Cody Autrey
Potentiometry
Ion-selective electrodes
Analytical Chemistry
Emergency Medicine
Metrics
H-Index
i10 Index
Citation
6
3
81
Ramanjaneyulu Rayala
Organic Chemistry
Analytical Chemistry
Peptide Chemistry
Nucleoside Chemistry
Metrics
H-Index
i10 Index
Citation
6
6
139
David Temitope Ayodele
Synthesis
Nuclear Waste Reprocessing
Inorganic Chemistry
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation
5
4
285
Gangireddy Madhusudhana Reddy
Organic synthesis of novel molecules
route scouting and analysis
Metrics
H-Index
i10 Index
Citation
5
4
139
Mohammad Mamun Rashid
Analytical Chemistry
Environmental Chemistry
Nanoparticles design
Metrics
H-Index
i10 Index
Citation
4
4
289
Anahita Esmaeilian
Analytical Chemistry
Fate and Transport of contaminant
Modeling flow transport
Adsorption
Metrics
H-Index
i10 Index
Citation
3
3
34
Johnson Onuorah Nnamani
Bio-inorganic Chemistry
Radiochemistry
Environmental Chemistry
Coordination Chemistry
Metrics
H-Index
i10 Index
Citation
2
0
9
Jonathan Cedeño
Protein dynamics
structure function relationship
kinetics
Metrics
H-Index
i10 Index
Citation
1
0
6
Adenike Fasiku
organic synthesis
inorganic chemistry
environmental remediation
wet chemistry
analytical chemistry
Metrics
H-Index
i10 Index
Citation
1
0
5
Alan Rodríguez
Inorganic chemistry
Chemistry
Teaching
History of chemistry
Research
Metrics
H-Index
i10 Index
Citation
1
0
5
Rankings
Ranking Based On Selection: 1
Kevin O Shea
Metrics
H-Index
i10 Index
Citation Counts
67
135
17,910
Environmental Chemistry
Photochemistry and Reactive Intermediates
Rankings
Ranking Based On Selection: 2
Jose R Almirall
Metrics
H-Index
i10 Index
Citation Counts
53
135
7,501
Rankings
Ranking Based On Selection: 3
Bruce Mccord
Metrics
H-Index
i10 Index
Citation Counts
49
130
8,107
forensic science
genomics
analytical chemistry
Rankings
Ranking Based On Selection: 4
Stanislaw F Wnuk
Metrics
H-Index
i10 Index
Citation Counts
38
117
4,617
Chemistry
organic synthesis
medicinal chemistry
Rankings
Ranking Based On Selection: 5
John P Berry
Metrics
H-Index
i10 Index
Citation Counts
27
38
2,670
Rankings
Ranking Based On Selection: 6
Natalia Soares Quinete
Metrics
H-Index
i10 Index
Citation Counts
25
48
1,999
Environmental Analytical Chemistry
Environmental Heath
Rankings
Ranking Based On Selection: 7
Meilian Chen
Metrics
H-Index
i10 Index
Citation Counts
24
31
2,158
organic biogeochemistry
aquatic ecosystems
environmental science
Rankings
Ranking Based On Selection: 8
Lilian Valadares Tose
Metrics
H-Index
i10 Index
Citation Counts
22
31
1,210
Rankings
Ranking Based On Selection: 9
Yong Liang
Metrics
H-Index
i10 Index
Citation Counts
18
29
832
Rankings
Ranking Based On Selection: 10
Komal Kalani
Metrics
H-Index
i10 Index
Citation Counts
17
21
838
Protein Crystallography
Solid Phase Synthesis
Medicinal and Natural Product Chemistry
Computational Chemistry
Neurodegenerat

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
Kiran Subedi
Metrics
H-Index
i10 Index
Citation Counts
14
14
866
Rankings
Ranking Based On Selection: 12
Zhiwei Wen
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,198
Rankings
Ranking Based On Selection: 13
Mayrén Echeverria Boan
Metrics
H-Index
i10 Index
Citation Counts
13
17
439
Corrosion
Concrete
Coatings
Electrochemistry
Composites
Rankings
Ranking Based On Selection: 14
Grover Larkins
Metrics
H-Index
i10 Index
Citation Counts
13
21
596
superconductivity
materials
interfaces
surface chemistry
langmuir blodgett
Rankings
Ranking Based On Selection: 15
Dennys Leyva
Metrics
H-Index
i10 Index
Citation Counts
10
10
286
Analytical Chemistry Mass Spectrometry Ion mobility Spectrometry Liquid Chromatography
Rankings
Ranking Based On Selection: 16
Ramon Lopez De La Vega
Metrics
H-Index
i10 Index
Citation Counts
10
10
434
Inorganic Chemistry
Reaction Mechanisms
Thermochemistry
Chemical Education
Rankings
Ranking Based On Selection: 17
Anamary Tarifa
Metrics
H-Index
i10 Index
Citation Counts
9
9
418
Rankings
Ranking Based On Selection: 18
Mrinal Chakraborty
Metrics
H-Index
i10 Index
Citation Counts
8
8
192
Rankings
Ranking Based On Selection: 19
Am Abdullah
Metrics
H-Index
i10 Index
Citation Counts
8
4
218
Analytical Chemistry
Oligonucleotide Mass spectrometry
Water Treatment
Pharmacology
Perfluoroalkyl substances
Rankings
Ranking Based On Selection: 20
Clement Olanrewaju
Metrics
H-Index
i10 Index
Citation Counts
6
4
232
Rankings
Ranking Based On Selection: 21
Shambhu Kandel
Metrics
H-Index
i10 Index
Citation Counts
6
4
88
Chemistry (inorganic
nuclear
analytical
environmental)
Rankings
Ranking Based On Selection: 22
Cody Autrey
Metrics
H-Index
i10 Index
Citation Counts
6
3
81
Potentiometry
Ion-selective electrodes
Analytical Chemistry
Emergency Medicine
Rankings
Ranking Based On Selection: 23
Ramanjaneyulu Rayala
Metrics
H-Index
i10 Index
Citation Counts
6
6
139
Organic Chemistry
Analytical Chemistry
Peptide Chemistry
Nucleoside Chemistry
Rankings
Ranking Based On Selection: 24
Pingping Liang
Metrics
H-Index
i10 Index
Citation Counts
5
5
176
Rankings
Ranking Based On Selection: 25
David Temitope Ayodele
Metrics
H-Index
i10 Index
Citation Counts
5
4
285
Synthesis
Nuclear Waste Reprocessing
Inorganic Chemistry
Environmental Chemistry
Rankings
Ranking Based On Selection: 26
Gangireddy Madhusudhana Reddy
Metrics
H-Index
i10 Index
Citation Counts
5
4
139
Organic synthesis of novel molecules
route scouting and analysis
Rankings
Ranking Based On Selection: 27
Johan Rene Gonzalez Moya
Metrics
H-Index
i10 Index
Citation Counts
5
4
139
Chemistry
Materials
Photoelectrochemistry
Quantum Dots
Rankings
Ranking Based On Selection: 28
Mohammad Mamun Rashid
Metrics
H-Index
i10 Index
Citation Counts
4
4
289
Analytical Chemistry
Environmental Chemistry
Nanoparticles design
Rankings
Ranking Based On Selection: 29
Anahita Esmaeilian
Metrics
H-Index
i10 Index
Citation Counts
3
3
34
Analytical Chemistry
Fate and Transport of contaminant
Modeling flow transport
Adsorption
Rankings
Ranking Based On Selection: 30
Ariel J Lawson
Metrics
H-Index
i10 Index
Citation Counts
3
2
35
Rankings
Ranking Based On Selection: 31
Johnson Onuorah Nnamani
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Bio-inorganic Chemistry
Radiochemistry
Environmental Chemistry
Coordination Chemistry
Rankings
Ranking Based On Selection: 32
Jonathan Cedeño
Metrics
H-Index
i10 Index
Citation Counts
1
0
6
Protein dynamics
structure function relationship
kinetics
Rankings
Ranking Based On Selection: 33
Adenike Fasiku
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
organic synthesis
inorganic chemistry
environmental remediation
wet chemistry
analytical chemistry
Rankings
Ranking Based On Selection: 34
Alan Rodríguez
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
Inorganic chemistry
Chemistry
Teaching
History of chemistry
Research
Rankings
Ranking Based On Selection: 35
Sk Md Sazzad Hossain Suzol
Metrics
H-Index
i10 Index
Citation Counts
1
0
2