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" (941,641 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
Saad H Ammar
Heterogeneous catalysis
Heterostructure nanocatalysts
Nanocomposites
Colloids
Photocatalysis
Metrics
H-Index
i10 Index
Citation
31
57
2,105
* Rankings
Ranking Based On Selection: 2
Basim O Hasan
Transport phenomena
process heat transfer
corrosion engineering
dispersion
Microbial fuel cell
Metrics
H-Index
i10 Index
Citation
17
24
827
* Rankings
Ranking Based On Selection: 4
Ahmed Al Mamoori
CO2 Capture
CO2 Utilization
Combined CO2 Capture and Utilization
Iodine Removal
Metrics
H-Index
i10 Index
Citation
10
10
1,349
Kamal Pak
Electrochemical engineering
Transport phenomena
Metrics
H-Index
i10 Index
Citation
4
3
90
* Rankings
Ranking Based On Selection: 10
Yasser Abdulaziz
Chemical Engineering
Hydrodynamics of Chemical Reactors
Metrics
H-Index
i10 Index
Citation
4
3
50

Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.

Sajjad M. Flihh
Chemical Engineering
Catalyst Engineering
Water treatment
transport phenomena
Metrics
H-Index
i10 Index
Citation
2
2
61
Rankings
Ranking Based On Selection: 1
Saad H Ammar
Metrics
H-Index
i10 Index
Citation Counts
31
57
2,105
Heterogeneous catalysis
Heterostructure nanocatalysts
Nanocomposites
Colloids
Photocatalysis
Rankings
Ranking Based On Selection: 2
Basim O Hasan
Metrics
H-Index
i10 Index
Citation Counts
17
24
827
Transport phenomena
process heat transfer
corrosion engineering
dispersion
Microbial fuel cell
Rankings
Ranking Based On Selection: 3
Khalid M Mousa Al Zoba
Metrics
H-Index
i10 Index
Citation Counts
11
12
384
Rankings
Ranking Based On Selection: 4
Ahmed Al Mamoori
Metrics
H-Index
i10 Index
Citation Counts
10
10
1,349
CO2 Capture
CO2 Utilization
Combined CO2 Capture and Utilization
Iodine Removal
Rankings
Ranking Based On Selection: 5
Yossor R. Abdulmajeed
Metrics
H-Index
i10 Index
Citation Counts
8
5
188
Rankings
Ranking Based On Selection: 6
Hind J. Hadi
Metrics
H-Index
i10 Index
Citation Counts
7
6
187
Rankings
Ranking Based On Selection: 7
Fatma Dheif Ali
Metrics
H-Index
i10 Index
Citation Counts
7
4
139
Rankings
Ranking Based On Selection: 8
Shaymaa M Mahmoud
Metrics
H-Index
i10 Index
Citation Counts
5
4
181
Rankings
Ranking Based On Selection: 9
Kamal Pak
Metrics
H-Index
i10 Index
Citation Counts
4
3
90
Rankings
Ranking Based On Selection: 10
Yasser Abdulaziz
Metrics
H-Index
i10 Index
Citation Counts
4
3
50
Chemical Engineering
Hydrodynamics of Chemical Reactors

Maximize your institution's potential with our 360° Institutional Analysis Subscription and Institutional Exclusive Package, offering comprehensive insights and strategic advantages.

Rankings
Ranking Based On Selection: 11
Alaa Ibrahim Elaibi
Metrics
H-Index
i10 Index
Citation Counts
4
3
110
Rankings
Ranking Based On Selection: 12
Naseer Al Habobi
Metrics
H-Index
i10 Index
Citation Counts
4
0
26
Rankings
Ranking Based On Selection: 13
Natheer Nori
Metrics
H-Index
i10 Index
Citation Counts
3
1
83
Rankings
Ranking Based On Selection: 15
Chemical Engineer Wedyan
Metrics
H-Index
i10 Index
Citation Counts
3
1
32
Rankings
Ranking Based On Selection: 16
Sajjad M. Flihh
Metrics
H-Index
i10 Index
Citation Counts
2
2
61
Chemical Engineering
Catalyst Engineering
Water treatment
transport phenomena
Rankings
Ranking Based On Selection: 17
Marwa S Hamed
Metrics
H-Index
i10 Index
Citation Counts
2
1
45
Rankings
Ranking Based On Selection: 18
Ekhlas Abdul Rahman
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Rankings
Ranking Based On Selection: 19
Mena M. Nabeel Aljumaili
Metrics
H-Index
i10 Index
Citation Counts
1
1
10
Rankings
Ranking Based On Selection: 20
Ruaa Fadhil
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
We use cookies to personalize our website and offer you a better experience. If you accept cookies, we can offer you special services.   Cookie Policy