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
Simon Clegg
Chemical thermodynamics
atmospheric chemistry
chemical oceanography
Metrics
H-Index
i10 Index
Citation
59
108
13,620
* Rankings
Ranking Based On Selection: 3
A Ganesan
Chemical Biology
Medicinal Chemistry
Natural Products
Metrics
H-Index
i10 Index
Citation
57
120
9,733
* Rankings
Ranking Based On Selection: 5
David L Andrews
Photonics
Nonlinear Optics
Multiphoton Processes
Quantum Optics
Chirality
Metrics
H-Index
i10 Index
Citation
54
227
13,650
* Rankings
Ranking Based On Selection: 6
Stephen Meech
Physical Chemistry
Ultrafast Spectroscopy
Photochemistry
Photobiology
Metrics
H-Index
i10 Index
Citation
50
160
9,039
Andrew G Mayes
microplastics
polymers
nanomaterials
analytical science
sensors
Metrics
H-Index
i10 Index
Citation
39
68
7,140
Simon J Lancaster
Active learning
Higher Education
Extended reality
Homogeneous Catalysis
Organometallics
Metrics
H-Index
i10 Index
Citation
38
66
4,378
Fraser MacMillan
Bioenergetics - Protein Structure and Function - Magnetic Resonance Spectroscopy
Metrics
H-Index
i10 Index
Citation
35
54
3,531

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* Rankings
Ranking Based On Selection: 11
Susan E Matthews
Calixarene Chemistry
Molecular Pharmaceutics
Pharmacy Education
Metrics
H-Index
i10 Index
Citation
31
49
3,668
* Rankings
Ranking Based On Selection: 12
Luca Rocchigiani
Organometallic Chemistry - Catalysis - NMR spectroscopy
Metrics
H-Index
i10 Index
Citation
28
42
1,931
* Rankings
Ranking Based On Selection: 14
Stephen H Ashworth
Physical Chemistry
Spectroscopy
Communication of Science
Metrics
H-Index
i10 Index
Citation
25
38
3,080
* Rankings
Ranking Based On Selection: 16
Sean P Bew
School of Chemistry
Norwich Research Park
NR4 7TJ
UK
Metrics
H-Index
i10 Index
Citation
17
30
1,101
* Rankings
Ranking Based On Selection: 17
Maria Jose Marin
Analytical chemistry
nanobiotechnology
carbohydrates
sensors and photodynamic therapy
Metrics
H-Index
i10 Index
Citation
16
22
1,239
* Rankings
Ranking Based On Selection: 18
Onur Atasoylu
Medicinal Chemistry
Computational Drug Design
Metrics
H-Index
i10 Index
Citation
16
17
1,533
* Rankings
Ranking Based On Selection: 19
Andrew Michael Beekman
Organic Chemistry
Medicinal Chemistry
Protein-Protein Interactions
Natural Products
Chemical Biology
Metrics
H-Index
i10 Index
Citation
13
16
403
Rankings
Ranking Based On Selection: 1
Andrew Thomson
Metrics
H-Index
i10 Index
Citation Counts
82
297
21,529
Rankings
Ranking Based On Selection: 2
Simon Clegg
Metrics
H-Index
i10 Index
Citation Counts
59
108
13,620
Chemical thermodynamics
atmospheric chemistry
chemical oceanography
Rankings
Ranking Based On Selection: 3
A Ganesan
Metrics
H-Index
i10 Index
Citation Counts
57
120
9,733
Chemical Biology
Medicinal Chemistry
Natural Products
Rankings
Ranking Based On Selection: 4
David Russell
Metrics
H-Index
i10 Index
Citation Counts
55
108
10,502
Rankings
Ranking Based On Selection: 5
David L Andrews
Metrics
H-Index
i10 Index
Citation Counts
54
227
13,650
Photonics
Nonlinear Optics
Multiphoton Processes
Quantum Optics
Chirality
Rankings
Ranking Based On Selection: 6
Stephen Meech
Metrics
H-Index
i10 Index
Citation Counts
50
160
9,039
Physical Chemistry
Ultrafast Spectroscopy
Photochemistry
Photobiology
Rankings
Ranking Based On Selection: 7
Andrew G Mayes
Metrics
H-Index
i10 Index
Citation Counts
39
68
7,140
microplastics
polymers
nanomaterials
analytical science
sensors
Rankings
Ranking Based On Selection: 8
Simon J Lancaster
Metrics
H-Index
i10 Index
Citation Counts
38
66
4,378
Active learning
Higher Education
Extended reality
Homogeneous Catalysis
Organometallics
Rankings
Ranking Based On Selection: 9
Fraser MacMillan
Metrics
H-Index
i10 Index
Citation Counts
35
54
3,531
Bioenergetics - Protein Structure and Function - Magnetic Resonance Spectroscopy
Rankings
Ranking Based On Selection: 10
Jose M Alonso|José M. Alonso, J. M. Alonso
Metrics
H-Index
i10 Index
Citation Counts
33
69
3,975
Chemistry
Organic Chemistry
Synthesis
Catalysis
Nanomaterials

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
Susan E Matthews
Metrics
H-Index
i10 Index
Citation Counts
31
49
3,668
Calixarene Chemistry
Molecular Pharmaceutics
Pharmacy Education
Rankings
Ranking Based On Selection: 12
Luca Rocchigiani
Metrics
H-Index
i10 Index
Citation Counts
28
42
1,931
Organometallic Chemistry - Catalysis - NMR spectroscopy
Rankings
Ranking Based On Selection: 13
Garth Jones
Metrics
H-Index
i10 Index
Citation Counts
27
48
1,943
Rankings
Ranking Based On Selection: 14
Stephen H Ashworth
Metrics
H-Index
i10 Index
Citation Counts
25
38
3,080
Physical Chemistry
Spectroscopy
Communication of Science
Rankings
Ranking Based On Selection: 15
Udo Wegmann
Metrics
H-Index
i10 Index
Citation Counts
24
35
2,111
Rankings
Ranking Based On Selection: 16
Sean P Bew
Metrics
H-Index
i10 Index
Citation Counts
17
30
1,101
School of Chemistry
Norwich Research Park
NR4 7TJ
UK
Rankings
Ranking Based On Selection: 17
Maria Jose Marin
Metrics
H-Index
i10 Index
Citation Counts
16
22
1,239
Analytical chemistry
nanobiotechnology
carbohydrates
sensors and photodynamic therapy
Rankings
Ranking Based On Selection: 18
Onur Atasoylu
Metrics
H-Index
i10 Index
Citation Counts
16
17
1,533
Medicinal Chemistry
Computational Drug Design
Rankings
Ranking Based On Selection: 19
Andrew Michael Beekman
Metrics
H-Index
i10 Index
Citation Counts
13
16
403
Organic Chemistry
Medicinal Chemistry
Protein-Protein Interactions
Natural Products
Chemical Biology
Rankings
Ranking Based On Selection: 20
Shane P Ashby
Metrics
H-Index
i10 Index
Citation Counts
6
5
173