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Top 100 Scientists

World Top 100 Scientists 2026

The Top 100 scientists are ranked based on total H-index scores at the global, regional, national, and institutional levels. Rankings cover 10 regions, 13 main fields, and 221 subfields. Subject-field rankings (world, region, country, and university levels) are currently in Beta and updated in near real-time.

Note: Researchers classified as “others” (1,123,399 profiles whose fields are undetermined or not yet edited) are excluded from subject and regional rankings. These rankings will dynamically evolve as the “others” profiles are reviewed and properly categorized.

Recognizing excellence across 10 regions, 13 fields, and 221 subfields — Explore the Top 100 today.

 

* Total H Index Rankings

Rankings

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133,879
World Rank
2,254
Country Rank
10
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Process engineering | Biotechnology | Bioenergy and Environmental Engineerin

H-Index Metrics

  • H-Index
    42
  • i10 Index
    92
  • Citation Counts
    5,872
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* Total H Index Rankings

Rankings

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210,502
World Rank
4,508
Country Rank
22
University
Ranking Based On Selection:
2
* Total H Index Rankings

Rankings

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246,706
World Rank
5,683
Country Rank
28
University
Ranking Based On Selection:
3
* Total H Index Rankings

Rankings

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294,672
World Rank
7,340
Country Rank
39
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Wastewater Treatment | Microbial Fuel Cell | Fuel Cell | electrochemical Engineerin

H-Index Metrics

  • H-Index
    28
  • i10 Index
    33
  • Citation Counts
    1,980
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* Total H Index Rankings

Rankings

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673,949
World Rank
23,413
Country Rank
116
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Electrochemistry | Conducting Polymers | Energy & Environmental Science

H-Index Metrics

  • H-Index
    15
  • i10 Index
    19
  • Citation Counts
    985
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* Total H Index Rankings

Rankings

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1,832,011
World Rank
91,455
Country Rank
251
University
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Geo-environmental engineering | Municipal solid waste managemen

H-Index Metrics

  • H-Index
    4
  • i10 Index
    3
  • Citation Counts
    50
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* Total H Index Rankings

Rankings

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2,023,258
World Rank
108,878
Country Rank
285
University
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering | Wastewater treatment | Bioenergy | Biomass | Waste to energ

H-Index Metrics

  • H-Index
    3
  • i10 Index
    2
  • Citation Counts
    59
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* Total H Index Rankings

Rankings

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2,065,696
World Rank
113,016
Country Rank
304
University
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
Environmental engineering | Advanced oxidation process | Microplastics | Wastewater Treatmen

H-Index Metrics

  • H-Index
    3
  • i10 Index
    1
  • Citation Counts
    45
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* Total H Index Rankings

Rankings

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2,495,402
World Rank
152,982
Country Rank
401
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering | Process Safety | Risk Managemen

H-Index Metrics

  • H-Index
    1
  • i10 Index
    0
  • Citation Counts
    5
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