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" (1,014,167 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
Ala A H Al Muhtaseb
Biofuel
Water treatment
Environmental Pollution
Metrics
H-Index
i10 Index
Citation
71
198
18,480
* Rankings
Ranking Based On Selection :4
Jamal Al Sabahi
Nanotechnology
Environment
food and chemical engineering
Metrics
H-Index
i10 Index
Citation
28
55
2,949
* Rankings
Ranking Based On Selection :6
Omar Houache
Effect of Oxidant
Process Optimization
Membrane Synthesis
Production and use of Adsobents
Metrics
H-Index
i10 Index
Citation
11
12
478
Amal Al Saadi
Chemical engineering
Wastewater treatment
Nanofiltration
NF membranes
Metrics
H-Index
i10 Index
Citation
4
4
149
Rankings
Ranking Based On Selection: 1
Ala A H Al Muhtaseb
Metrics
H-Index
i10 Index
Citation Counts
71
198
18,480
Rankings
Ranking Based On Selection: 2
Farouq Sabri Mjalli
Metrics
H-Index
i10 Index
Citation Counts
56
156
13,950
Rankings
Ranking Based On Selection: 3
Talal Al Wahaibi
Metrics
H-Index
i10 Index
Citation Counts
31
50
3,221
Rankings
Ranking Based On Selection: 4
Jamal Al Sabahi
Metrics
H-Index
i10 Index
Citation Counts
28
55
2,949
Nanotechnology
Environment
food and chemical engineering
Rankings
Ranking Based On Selection: 5
G Reza Vakili Nezhaad
Metrics
H-Index
i10 Index
Citation Counts
24
48
2,689
Rankings
Ranking Based On Selection: 6
Omar Houache
Metrics
H-Index
i10 Index
Citation Counts
11
12
478
Effect of Oxidant
Process Optimization
Membrane Synthesis
Production and use of Adsobents
Rankings
Ranking Based On Selection: 7
Amal Al Saadi
Metrics
H-Index
i10 Index
Citation Counts
4
4
149
Chemical engineering
Wastewater treatment
Nanofiltration
NF membranes