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” (1,121,289 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: 1
Esmail Vessally
Editor-in-Chief and full professor in Organic Chemistr
Metrics
 
H-Index
i10 Index
Citation
56
191
9,049
* Rankings
Ranking Based On Selection: 4
Mohammad Sadegh Amiri
Medicinal Plants
Applied Botany
Ethnobotany
Economic & Medical Botany
Phytotherap
Metrics
 
H-Index
i10 Index
Citation
44
73
4,785
* Rankings
Ranking Based On Selection: 6
Hossein Zare
cognition
problem solving
social psycholog
Metrics
 
H-Index
i10 Index
Citation
40
157
9,326
* Rankings
Ranking Based On Selection: 7
Reza Behjatmanesh Ardakani
Computational Catalysis
Band Gap Engineering
Solid State Physics
Semiconductor
Metrics
 
H-Index
i10 Index
Citation
36
80
3,564
* Rankings
Ranking Based On Selection: 9
Mehdi Fallah Mehrjardi
Phase-transfer catalysts
Multicomponent reactions
Organic Chemistr
Metrics
 
H-Index
i10 Index
Citation
33
75
2,992
* Rankings
Ranking Based On Selection: 10
Hassan Karami
Design and costruction
Nanomaterials
Rechargeable batteries
Water purificatio
Metrics
 
H-Index
i10 Index
Citation
33
72
3,791
* Rankings
Ranking Based On Selection: 11
Sayed Zia Mohammadi
Nanotechnology
Nanoelectrochemistry
Microextraction
Environmental monitoring
Solid phase extractio
Metrics
 
H-Index
i10 Index
Citation
32
98
3,903
* Rankings
Ranking Based On Selection: 12
Abbas Teimouri
Organic Chemistry
Nanocomposite
Tissue Engineering
Organic Synthesis
Theoretical Studie
Metrics
 
H-Index
i10 Index
Citation
32
80
3,342
* Rankings
Ranking Based On Selection: 14
Aazam Monfared
Organic Chemistry
Phytochemistry
Drug Synthesis
Natural Products Extractio
Metrics
 
H-Index
i10 Index
Citation
31
47
2,212
* Rankings
Ranking Based On Selection: 15
Alireza Akbari
Inorganic Chemistry
Industrial inorganic chemistr
Metrics
 
H-Index
i10 Index
Citation
30
62
2,750
* Rankings
Ranking Based On Selection: 16
Mojtaba Abbasian
Polymer chemistry
Well Defined Nanocomposite
Drug chemistr
Metrics
 
H-Index
i10 Index
Citation
29
78
2,667
* Rankings
Ranking Based On Selection: 19
Hamid Reza Sobhi
Trace analysis
Chromatography
Mass spectrometry
Sample preparation
Spectroscop
Metrics
 
H-Index
i10 Index
Citation
28
49
2,725
* Rankings
Ranking Based On Selection: 20
Hasan Ali Hosseini
Microextraction
Nanomaterials
Water treatment
Spectroscopy
Photocatalys
Metrics
 
H-Index
i10 Index
Citation
27
39
2,599
* Rankings
Ranking Based On Selection: 21
Leila Zare Fekri
organic chemistry
green chemistry
nano chemistr
Metrics
 
H-Index
i10 Index
Citation
27
58
2,312
* Rankings
Ranking Based On Selection: 22
Ahmad Alipour
Neuropsychology
cognitive neuroscience
health psycholog
Metrics
 
H-Index
i10 Index
Citation
27
91
4,213
* Rankings
Ranking Based On Selection: 24
Hossein Hosseinzadeh
Polymer chemistry
Stimuli-responsive polymer
Metrics
 
H-Index
i10 Index
Citation
26
44
2,287
* Rankings
Ranking Based On Selection: 25
Abolfath Parhami
Synthesis
Catalysis and Mechanis
Metrics
 
H-Index
i10 Index
Citation
26
41
1,522
Rankings
Ranking Based On Selection: 1
Esmail Vessally
Metrics
 
H-Index
i10 Index
Citation Counts
56
191
9,049
Editor-in-Chief and full professor in Organic Chemistr
Rankings
Ranking Based On Selection: 2
Abdolkarim Zare
Metrics
 
H-Index
i10 Index
Citation Counts
53
191
9,216
Rankings
Ranking Based On Selection: 3
Saba Hemmati
Metrics
 
H-Index
i10 Index
Citation Counts
45
95
5,665
Rankings
Ranking Based On Selection: 4
Mohammad Sadegh Amiri
Metrics
 
H-Index
i10 Index
Citation Counts
44
73
4,785
Medicinal Plants
Applied Botany
Ethnobotany
Economic & Medical Botany
Phytotherap
Rankings
Ranking Based On Selection: 5
Zarrin Es'haghi
Metrics
 
H-Index
i10 Index
Citation Counts
43
119
5,457
Rankings
Ranking Based On Selection: 6
Hossein Zare
Metrics
 
H-Index
i10 Index
Citation Counts
40
157
9,326
cognition
problem solving
social psycholog
Rankings
Ranking Based On Selection: 7
Reza Behjatmanesh Ardakani
Metrics
 
H-Index
i10 Index
Citation Counts
36
80
3,564
Computational Catalysis
Band Gap Engineering
Solid State Physics
Semiconductor
Rankings
Ranking Based On Selection: 8
Bakhshali Massoumi
Metrics
 
H-Index
i10 Index
Citation Counts
34
110
4,139
Rankings
Ranking Based On Selection: 9
Mehdi Fallah Mehrjardi
Metrics
 
H-Index
i10 Index
Citation Counts
33
75
2,992
Phase-transfer catalysts
Multicomponent reactions
Organic Chemistr
Rankings
Ranking Based On Selection: 10
Hassan Karami
Metrics
 
H-Index
i10 Index
Citation Counts
33
72
3,791
Design and costruction
Nanomaterials
Rechargeable batteries
Water purificatio
Rankings
Ranking Based On Selection: 11
Sayed Zia Mohammadi
Metrics
 
H-Index
i10 Index
Citation Counts
32
98
3,903
Nanotechnology
Nanoelectrochemistry
Microextraction
Environmental monitoring
Solid phase extractio
Rankings
Ranking Based On Selection: 12
Abbas Teimouri
Metrics
 
H-Index
i10 Index
Citation Counts
32
80
3,342
Organic Chemistry
Nanocomposite
Tissue Engineering
Organic Synthesis
Theoretical Studie
Rankings
Ranking Based On Selection: 13
Mohammad Ali Ebrahimi
Metrics
 
H-Index
i10 Index
Citation Counts
31
97
4,330
Rankings
Ranking Based On Selection: 14
Aazam Monfared
Metrics
 
H-Index
i10 Index
Citation Counts
31
47
2,212
Organic Chemistry
Phytochemistry
Drug Synthesis
Natural Products Extractio
Rankings
Ranking Based On Selection: 15
Alireza Akbari
Metrics
 
H-Index
i10 Index
Citation Counts
30
62
2,750
Inorganic Chemistry
Industrial inorganic chemistr
Rankings
Ranking Based On Selection: 16
Mojtaba Abbasian
Metrics
 
H-Index
i10 Index
Citation Counts
29
78
2,667
Polymer chemistry
Well Defined Nanocomposite
Drug chemistr
Rankings
Ranking Based On Selection: 17
Kamellia Nejati
Metrics
 
H-Index
i10 Index
Citation Counts
29
47
2,731
Rankings
Ranking Based On Selection: 19
Hamid Reza Sobhi
Metrics
 
H-Index
i10 Index
Citation Counts
28
49
2,725
Trace analysis
Chromatography
Mass spectrometry
Sample preparation
Spectroscop
Rankings
Ranking Based On Selection: 20
Hasan Ali Hosseini
Metrics
 
H-Index
i10 Index
Citation Counts
27
39
2,599
Microextraction
Nanomaterials
Water treatment
Spectroscopy
Photocatalys
Rankings
Ranking Based On Selection: 21
Leila Zare Fekri
Metrics
 
H-Index
i10 Index
Citation Counts
27
58
2,312
organic chemistry
green chemistry
nano chemistr
Rankings
Ranking Based On Selection: 22
Ahmad Alipour
Metrics
 
H-Index
i10 Index
Citation Counts
27
91
4,213
Neuropsychology
cognitive neuroscience
health psycholog
Rankings
Ranking Based On Selection: 23
Mohammad Reza Jamali
Metrics
 
H-Index
i10 Index
Citation Counts
27
54
3,200
Rankings
Ranking Based On Selection: 24
Hossein Hosseinzadeh
Metrics
 
H-Index
i10 Index
Citation Counts
26
44
2,287
Rankings
Ranking Based On Selection: 25
Abolfath Parhami
Metrics
 
H-Index
i10 Index
Citation Counts
26
41
1,522
Synthesis
Catalysis and Mechanis