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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 (at world, region, country, and university levels) are currently in Beta version and updated in near real-time.
Note: Researchers classified as "others" (currently 1,122,060 profiles whose fields are undetermined or unedited) are excluded from subject and regional rankings. These rankings will dynamically evolve as the “others” profiles are reviewed and properly categorized.

* Total H Index Rankings

Rankings

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2,493
World Rank
78
Country Rank
2
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Water Treatment Processes | Environmental Nanotechnology | Advanced Oxidation | Membrane Technolog

H-Index Metrics

  • H-Index
    142
  • i10 Index
    861
  • Citation Counts
    78,533
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* Total H Index Rankings

Rankings

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20,077
World Rank
958
Country Rank
24
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Water Treatment | Membrane Technology | Environmental Engineerin

H-Index Metrics

  • H-Index
    82
  • i10 Index
    350
  • Citation Counts
    22,534
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* Total H Index Rankings

Rankings

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79,058
World Rank
4,055
Country Rank
72
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Antimicrobial resistance | Wastewater treatment | Risk assessment | Emerging contaminant

H-Index Metrics

  • H-Index
    52
  • i10 Index
    130
  • Citation Counts
    7,800
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* Total H Index Rankings

Rankings

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97,049
World Rank
5,060
Country Rank
83
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering | Wastewater Treatment | Environmental Microbiology | Bioenergy recovery | Nitrogen cycl

H-Index Metrics

  • H-Index
    48
  • i10 Index
    120
  • Citation Counts
    6,648
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* Total H Index Rankings

Rankings

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126,095
World Rank
6,637
Country Rank
104
University
Ranking Based On Selection:
5
* Total H Index Rankings

Rankings

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141,342
World Rank
7,538
Country Rank
122
University
Ranking Based On Selection:
6

H-Index Metrics

  • H-Index
    41
  • i10 Index
    81
  • Citation Counts
    4,597
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* Total H Index Rankings

Rankings

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155,382
World Rank
8,194
Country Rank
132
University
Ranking Based On Selection:
7

H-Index Metrics

  • H-Index
    39
  • i10 Index
    66
  • Citation Counts
    5,440
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* Total H Index Rankings

Rankings

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163,753
World Rank
8,619
Country Rank
138
University
Ranking Based On Selection:
8

H-Index Metrics

  • H-Index
    38
  • i10 Index
    75
  • Citation Counts
    4,216
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* Total H Index Rankings

Rankings

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163,945
World Rank
8,659
Country Rank
141
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Water treatment | Environmental engineerin

H-Index Metrics

  • H-Index
    38
  • i10 Index
    59
  • Citation Counts
    4,475
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* Total H Index Rankings

Rankings

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230,639
World Rank
12,344
Country Rank
195
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
Water electrolysis | Pulsed dynamic electrocatalysis | Porous carbon | Oxygen reduction reactio

H-Index Metrics

  • H-Index
    32
  • i10 Index
    68
  • Citation Counts
    3,153
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* Total H Index Rankings

Rankings

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260,646
World Rank
14,067
Country Rank
222
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Environmental Engineering | Water Treatment | Wastewater Treatmen

H-Index Metrics

  • H-Index
    30
  • i10 Index
    33
  • Citation Counts
    5,201
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* Total H Index Rankings

Rankings

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291,677
World Rank
15,608
Country Rank
253
University
Ranking Based On Selection:
12
Engineering & Technology / Environmental Science & Engineering
water and wastewater treatment | membrane fouling | nutrient and bioenergy recover

H-Index Metrics

  • H-Index
    28
  • i10 Index
    42
  • Citation Counts
    2,064
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* Total H Index Rankings

Rankings

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404,434
World Rank
21,639
Country Rank
339
University
Ranking Based On Selection:
13
* Total H Index Rankings

Rankings

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436,672
World Rank
23,232
Country Rank
370
University
Ranking Based On Selection:
14

H-Index Metrics

  • H-Index
    22
  • i10 Index
    27
  • Citation Counts
    1,723
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* Total H Index Rankings

Rankings

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545,326
World Rank
27,744
Country Rank
430
University
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Water and wastewater treatment | Resource recovery | Membrane technolog

H-Index Metrics

  • H-Index
    19
  • i10 Index
    25
  • Citation Counts
    951
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* Total H Index Rankings

Rankings

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589,972
World Rank
29,888
Country Rank
451
University
Ranking Based On Selection:
16
* Total H Index Rankings

Rankings

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722,791
World Rank
35,553
Country Rank
529
University
Ranking Based On Selection:
17
* Total H Index Rankings

Rankings

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833,872
World Rank
40,042
Country Rank
589
University
Ranking Based On Selection:
18

H-Index Metrics

  • H-Index
    12
  • i10 Index
    13
  • Citation Counts
    1,094
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* Total H Index Rankings

Rankings

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1,069,717
World Rank
50,028
Country Rank
726
University
Ranking Based On Selection:
19
* Total H Index Rankings

Rankings

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1,271,161
World Rank
57,904
Country Rank
860
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Membrane Technology | Enzymatic Catalysis | Environmental Engineering | Catalytic Membranes | Membrane Fouling Contro

H-Index Metrics

  • H-Index
    7
  • i10 Index
    7
  • Citation Counts
    503
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* Total H Index Rankings

Rankings

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1,461,369
World Rank
66,770
Country Rank
1,042
University
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Environmental Science | Artificial Intelligenc

H-Index Metrics

  • H-Index
    6
  • i10 Index
    5
  • Citation Counts
    200
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* Total H Index Rankings

Rankings

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1,598,502
World Rank
71,255
Country Rank
1,120
University
Ranking Based On Selection:
22
* Total H Index Rankings

Rankings

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1,616,556
World Rank
72,370
Country Rank
1,143
University
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Environmental Science and Technology | Membrane Technology | Capacitive Deionization | Electrochemistr

H-Index Metrics

  • H-Index
    5
  • i10 Index
    4
  • Citation Counts
    111
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