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" (873,688 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: 3
Sami G Al Ghamdi
Sustainability
Built Environment
Life-Cycle Assessment
Climate Change
Resilient Infrastructure
Metrics
H-Index
i10 Index
Citation
46
123
6,800
* Rankings
Ranking Based On Selection: 4
Golibjon Berdiyorov
Electronic and transport properties of nanostructures systems
Metrics
H-Index
i10 Index
Citation
41
93
5,086
* Rankings
Ranking Based On Selection: 5
Kashif Rasool
Nanobiotechnology for Energy and Environment
MXenes
Green Materials
Bioprocesses
Resource
Metrics
H-Index
i10 Index
Citation
33
53
6,613
* Rankings
Ranking Based On Selection: 6
Lijo Francis
Membrane Engineering
Electrospinning
Water Desalination
Membrane Distillation and Water Quality
Metrics
H-Index
i10 Index
Citation
33
45
4,006
* Rankings
Ranking Based On Selection: 8
Abdelnasser Mabrouk
Innovative Desalination Process Development (Thermal
Membrane
Hybrid)
Metrics
H-Index
i10 Index
Citation
32
52
3,389
* Rankings
Ranking Based On Selection: 9
Ravi P Pandey
MXene
Graphene
Advanced materials
Membrane technology
Environmental Science
Metrics
H-Index
i10 Index
Citation
28
43
3,476

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
Jenny Lawler
Membrane Separations for Water and Wastewater Treatment and DSP for Pharma (protein purification)
Mathematical Modelling
Membr
Metrics
H-Index
i10 Index
Citation
25
39
2,395
* Rankings
Ranking Based On Selection: 12
Adnan Ali
MXenes
Graphene
Heterostructures
Thin Film devices for energy conversion and energy storage
Metrics
H-Index
i10 Index
Citation
23
29
2,931
* Rankings
Ranking Based On Selection: 13
Azhar Siddique
Environmental Health
Ambient and indoor air quality
Bioaerosol
indoor pollution
Metrics
H-Index
i10 Index
Citation
21
34
1,928
* Rankings
Ranking Based On Selection: 15
Yehia Manawi
water treatment
membrane
reverse osmosis
ultrafiltration
nanofiltration
Metrics
H-Index
i10 Index
Citation
17
20
1,643
* Rankings
Ranking Based On Selection: 16
Mohd Zamri Che Wanik
Power & Energy System
Distributed & Renewable Energy Integration
SmartGrid & Microgrid
Advance Management of Distribution Net
Metrics
H-Index
i10 Index
Citation
17
26
1,019
* Rankings
Ranking Based On Selection: 17
Afsal Manekkathodi
Renewable energy
Photovoltaics
Nanotechnology
Semiconducting Nanostructures
Nanophotonics
Metrics
H-Index
i10 Index
Citation
16
19
1,165
* Rankings
Ranking Based On Selection: 18
Huda Al Sulaiti
Radiation Physics
Natural radioactivity
NORM
Gamma-ray spectrometry.
Metrics
H-Index
i10 Index
Citation
14
15
1,040
* Rankings
Ranking Based On Selection: 19
Oluwaseun Ogunbiyi
Water Treatment
Wastewater Treatment
Water Reuse
Desalination
Metrics
H-Index
i10 Index
Citation
14
15
1,271
* Rankings
Ranking Based On Selection: 20
Mohammad Alherbawi
Sustainable Energy
Biofuels
Process Optimization
Modeling & Simulations
Metrics
H-Index
i10 Index
Citation
13
17
1,279
* Rankings
Ranking Based On Selection: 21
Sabah Mariyam
Sustainable Energy
Bioenergy
Waste to Value
Environmental Science
Metrics
H-Index
i10 Index
Citation
9
8
272
Rankings
Ranking Based On Selection: 1
Gordon Mckay
Metrics
H-Index
i10 Index
Citation Counts
133
523
96,599
Rankings
Ranking Based On Selection: 2
Zhaoyang Liu
Metrics
H-Index
i10 Index
Citation Counts
51
77
9,422
Rankings
Ranking Based On Selection: 3
Sami G Al Ghamdi
Metrics
H-Index
i10 Index
Citation Counts
46
123
6,800
Sustainability
Built Environment
Life-Cycle Assessment
Climate Change
Resilient Infrastructure
Rankings
Ranking Based On Selection: 4
Golibjon Berdiyorov
Metrics
H-Index
i10 Index
Citation Counts
41
93
5,086
Electronic and transport properties of nanostructures systems
Rankings
Ranking Based On Selection: 5
Kashif Rasool
Metrics
H-Index
i10 Index
Citation Counts
33
53
6,613
Nanobiotechnology for Energy and Environment
MXenes
Green Materials
Bioprocesses
Resource
Rankings
Ranking Based On Selection: 6
Lijo Francis
Metrics
H-Index
i10 Index
Citation Counts
33
45
4,006
Membrane Engineering
Electrospinning
Water Desalination
Membrane Distillation and Water Quality
Rankings
Ranking Based On Selection: 7
Fedwa El Mellouhi
Metrics
H-Index
i10 Index
Citation Counts
32
72
4,431
Rankings
Ranking Based On Selection: 8
Abdelnasser Mabrouk
Metrics
H-Index
i10 Index
Citation Counts
32
52
3,389
Innovative Desalination Process Development (Thermal
Membrane
Hybrid)
Rankings
Ranking Based On Selection: 9
Ravi P Pandey
Metrics
H-Index
i10 Index
Citation Counts
28
43
3,476
MXene
Graphene
Advanced materials
Membrane technology
Environmental Science
Rankings
Ranking Based On Selection: 10
Said Mansour
Metrics
H-Index
i10 Index
Citation Counts
28
49
3,109

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
Jenny Lawler
Metrics
H-Index
i10 Index
Citation Counts
25
39
2,395
Membrane Separations for Water and Wastewater Treatment and DSP for Pharma (protein purification)
Mathematical Modelling
Membr
Rankings
Ranking Based On Selection: 12
Adnan Ali
Metrics
H-Index
i10 Index
Citation Counts
23
29
2,931
MXenes
Graphene
Heterostructures
Thin Film devices for energy conversion and energy storage
Rankings
Ranking Based On Selection: 13
Azhar Siddique
Metrics
H-Index
i10 Index
Citation Counts
21
34
1,928
Environmental Health
Ambient and indoor air quality
Bioaerosol
indoor pollution
Rankings
Ranking Based On Selection: 14
Junaid Saleem
Metrics
H-Index
i10 Index
Citation Counts
20
29
1,735
Rankings
Ranking Based On Selection: 15
Yehia Manawi
Metrics
H-Index
i10 Index
Citation Counts
17
20
1,643
water treatment
membrane
reverse osmosis
ultrafiltration
nanofiltration
Rankings
Ranking Based On Selection: 16
Mohd Zamri Che Wanik
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,019
Power & Energy System
Distributed & Renewable Energy Integration
SmartGrid & Microgrid
Advance Management of Distribution Net
Rankings
Ranking Based On Selection: 17
Afsal Manekkathodi
Metrics
H-Index
i10 Index
Citation Counts
16
19
1,165
Renewable energy
Photovoltaics
Nanotechnology
Semiconducting Nanostructures
Nanophotonics
Rankings
Ranking Based On Selection: 18
Huda Al Sulaiti
Metrics
H-Index
i10 Index
Citation Counts
14
15
1,040
Radiation Physics
Natural radioactivity
NORM
Gamma-ray spectrometry.
Rankings
Ranking Based On Selection: 19
Oluwaseun Ogunbiyi
Metrics
H-Index
i10 Index
Citation Counts
14
15
1,271
Water Treatment
Wastewater Treatment
Water Reuse
Desalination
Rankings
Ranking Based On Selection: 20
Mohammad Alherbawi
Metrics
H-Index
i10 Index
Citation Counts
13
17
1,279
Sustainable Energy
Biofuels
Process Optimization
Modeling & Simulations
Rankings
Ranking Based On Selection: 21
Sabah Mariyam
Metrics
H-Index
i10 Index
Citation Counts
9
8
272
Sustainable Energy
Bioenergy
Waste to Value
Environmental Science