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 :1
Mahmoud Nasrollahzadeh
Organic Chemistry
Biomass Valorization
Lignin & Polysaccharides
Hydrogen Production
Metrics
H-Index
i10 Index
Citation
91
265
22,349
* Rankings
Ranking Based On Selection :2
Akbar Rostami Vartooni
Coordination Chemistry
Nanocomposite
Schiff base
Photodegradation
Catalysis
Metrics
H-Index
i10 Index
Citation
23
28
2,605
* Rankings
Ranking Based On Selection :3
Mohammad Fadaee
Analytical approaches in Vibrations
Mechanics of Composite Structures
NanoMechanics
Piezoelectric Sensors and Actuators
Metrics
H-Index
i10 Index
Citation
18
28
1,398
Mojtaba Hadi
Electroanalysis
Electroanalytical Chemistry
Carbon film electrode
Carbon-based nano-structures
Metrics
H-Index
i10 Index
Citation
16
22
755
Raziyeh Bakhshali-Dehkordi
Organic Chemistry
Biomass Valorization
Catalysis (Nano)
Phytochemistry
Metrics
H-Index
i10 Index
Citation
8
7
181
Seyyed Mohammad Hossein Razavian
Enzyme purification & assay
Pharmaceutical proteins
Drug delivery
Natural pigments
Metrics
H-Index
i10 Index
Citation
7
7
248
Yasaman Ashjaee
Organic Chemistry
Computational in Organic Chemistry
Metrics
H-Index
i10 Index
Citation
2
1
28
Mt Baharifard
analytical chemistry
industrial chemistry
Metrics
H-Index
i10 Index
Citation
2
0
15
Rankings
Ranking Based On Selection: 1
Mahmoud Nasrollahzadeh
Metrics
H-Index
i10 Index
Citation Counts
91
265
22,349
Organic Chemistry
Biomass Valorization
Lignin & Polysaccharides
Hydrogen Production
Rankings
Ranking Based On Selection: 2
Akbar Rostami Vartooni
Metrics
H-Index
i10 Index
Citation Counts
23
28
2,605
Coordination Chemistry
Nanocomposite
Schiff base
Photodegradation
Catalysis
Rankings
Ranking Based On Selection: 3
Mohammad Fadaee
Metrics
H-Index
i10 Index
Citation Counts
18
28
1,398
Analytical approaches in Vibrations
Mechanics of Composite Structures
NanoMechanics
Piezoelectric Sensors and Actuators
Rankings
Ranking Based On Selection: 4
Mojtaba Hadi
Metrics
H-Index
i10 Index
Citation Counts
16
22
755
Electroanalysis
Electroanalytical Chemistry
Carbon film electrode
Carbon-based nano-structures
Rankings
Ranking Based On Selection: 5
Mostafa Kiamehr
Metrics
H-Index
i10 Index
Citation Counts
13
16
529
Rankings
Ranking Based On Selection: 7
Khadijeh Rabiei
Metrics
H-Index
i10 Index
Citation Counts
11
12
424
Rankings
Ranking Based On Selection: 8
Raziyeh Bakhshali-Dehkordi
Metrics
H-Index
i10 Index
Citation Counts
8
7
181
Organic Chemistry
Biomass Valorization
Catalysis (Nano)
Phytochemistry
Rankings
Ranking Based On Selection: 9
Seyyed Mohammad Hossein Razavian
Metrics
H-Index
i10 Index
Citation Counts
7
7
248
Enzyme purification & assay
Pharmaceutical proteins
Drug delivery
Natural pigments
Rankings
Ranking Based On Selection: 10
Fahimeh Soleimani
Metrics
H-Index
i10 Index
Citation Counts
6
5
243
Rankings
Ranking Based On Selection: 11
Seyyed Mahdi Atashzar
Metrics
H-Index
i10 Index
Citation Counts
2
2
51
Rankings
Ranking Based On Selection: 12
Hanieh Gharoubi
Metrics
H-Index
i10 Index
Citation Counts
2
1
54
Rankings
Ranking Based On Selection: 13
Yasaman Ashjaee
Metrics
H-Index
i10 Index
Citation Counts
2
1
28
Organic Chemistry
Computational in Organic Chemistry
Rankings
Ranking Based On Selection: 14
Mt Baharifard
Metrics
H-Index
i10 Index
Citation Counts
2
0
15