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
Nageh Allam
Energy Materials
Energy Engineering
Green Hydrogen and Solar Energy
Energy Storage
E-Waste Recycling
Metrics
H-Index
i10 Index
Citation
58
264
13,238
Mohamed Osman
Demand response
Energy Efficient Buildings
Occupant Behavior
CFD
Renewable energy
Metrics
H-Index
i10 Index
Citation
6
6
370
R. Shenouda
Renewable energy
solar energy
Computational fluid dynamics
Metrics
H-Index
i10 Index
Citation
4
2
83
Mohamed Awad
Renewable energy
Hydrogen technology
Power electronics
Control system
EVs
Metrics
H-Index
i10 Index
Citation
3
3
117
Nour Bahnasawy
Energy Materials
Energy Engineering
Green Hydrogen and Solar Energy
Energy Storage
Water
Metrics
H-Index
i10 Index
Citation
3
2
35
Ahmed Mohamed Zobaa|Ahmed M. Zobaa, AM Zobaa
Renewable Energy
Power Quality
Generation and Utilization of Electric Power
Power Systems
Metrics
H-Index
i10 Index
Citation
3
1
34
M. Mekawy Dagher
Mechatronics
Solar Energy
Renewable Energy
CFD
Fluid Mechanics
Metrics
H-Index
i10 Index
Citation
2
1
15
Mohamed Rashed
Refrigeration and Air conditioning
Ejectors
Renewable Energy
Water desalination
Metrics
H-Index
i10 Index
Citation
2
1
13
Silvana E. Guirguis
Control
Optimization
Autonomous electric Vehicles
Renewable Energy
Metrics
H-Index
i10 Index
Citation
2
0
15
Farah Shoukry
Indoor Air Quality
Urban Development
Islamic Art and Architecture
Renewable Energy Policy
Metrics
H-Index
i10 Index
Citation
2
0
7
Rankings
Ranking Based On Selection: 1
Nageh Allam
Metrics
H-Index
i10 Index
Citation Counts
58
264
13,238
Energy Materials
Energy Engineering
Green Hydrogen and Solar Energy
Energy Storage
E-Waste Recycling
Rankings
Ranking Based On Selection: 2
Tamer M Ismail
Metrics
H-Index
i10 Index
Citation Counts
25
39
1,652
Rankings
Ranking Based On Selection: 3
Mohamed Osman
Metrics
H-Index
i10 Index
Citation Counts
6
6
370
Demand response
Energy Efficient Buildings
Occupant Behavior
CFD
Renewable energy
Rankings
Ranking Based On Selection: 4
R. Shenouda
Metrics
H-Index
i10 Index
Citation Counts
4
2
83
Renewable energy
solar energy
Computational fluid dynamics
Rankings
Ranking Based On Selection: 5
Mohamed Awad
Metrics
H-Index
i10 Index
Citation Counts
3
3
117
Renewable energy
Hydrogen technology
Power electronics
Control system
EVs
Rankings
Ranking Based On Selection: 6
Nour Bahnasawy
Metrics
H-Index
i10 Index
Citation Counts
3
2
35
Energy Materials
Energy Engineering
Green Hydrogen and Solar Energy
Energy Storage
Water
Rankings
Ranking Based On Selection: 7
Ahmed Mohamed Zobaa|Ahmed M. Zobaa, AM Zobaa
Metrics
H-Index
i10 Index
Citation Counts
3
1
34
Renewable Energy
Power Quality
Generation and Utilization of Electric Power
Power Systems
Rankings
Ranking Based On Selection: 8
Mona A. Abdel Mawla
Metrics
H-Index
i10 Index
Citation Counts
2
2
37
Rankings
Ranking Based On Selection: 9
M. Mekawy Dagher
Metrics
H-Index
i10 Index
Citation Counts
2
1
15
Mechatronics
Solar Energy
Renewable Energy
CFD
Fluid Mechanics
Rankings
Ranking Based On Selection: 10
Mohamed Rashed
Metrics
H-Index
i10 Index
Citation Counts
2
1
13
Refrigeration and Air conditioning
Ejectors
Renewable Energy
Water desalination
Rankings
Ranking Based On Selection: 11
Silvana E. Guirguis
Metrics
H-Index
i10 Index
Citation Counts
2
0
15
Control
Optimization
Autonomous electric Vehicles
Renewable Energy
Rankings
Ranking Based On Selection: 12
Farah Shoukry
Metrics
H-Index
i10 Index
Citation Counts
2
0
7
Indoor Air Quality
Urban Development
Islamic Art and Architecture
Renewable Energy Policy
Rankings
Ranking Based On Selection: 13
Bola G Salama
Metrics
H-Index
i10 Index
Citation Counts
1
0
8
Rankings
Ranking Based On Selection: 14
Youssef Elmessiry
Metrics
H-Index
i10 Index
Citation Counts
1
0
3