Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.286 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Pulsars
gamma-ray astronomy
globular clusters
cosmic rays
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,171
12,798
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Microbial Ecology
Soil Metagenomics
Plant-Microbe Interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,210
22,694
0.866
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,910
9,665
0.388
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Positive Organizations
Capabilities
Engagement
Flourishing
Well-being
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,750
8,438
0.427
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,888
5,206
0.276
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Environmental
Health
& Development Economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,608
10,181
0.652
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Astrophysics
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,407
8,386
0.544
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Low Noise Amplifiers
Gamma-ray astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,915
6,729
0.565
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Thermodynamics of solution
DESs
Ionic Liquids
Corrosion
Separation Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,585
8,195
0.707
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Geoecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,082
4,939
0.446
* Total Citation Counts Rankings
Ranking Based On Selection: 11
16S rRNA gene
bacterial diversity
insect gut bacteria
microbial community
Metagenomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,684
4,087
0.383
* Total Citation Counts Rankings
Ranking Based On Selection: 12
membranes
hydrogen
fuel cells
electrolysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,359
7,561
0.730
* Total Citation Counts Rankings
Ranking Based On Selection: 13
gamma-ray energy
blazars
active galaxies
AGN
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,999
6,562
0.729
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Materials Chemistry
Green Chemistry
Chemical Engineering
Water Treatment
Environmental Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,119
6,724
0.828
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Speech technology
pattern recognition
machine learning
deep neural networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,101
1,436
0.177
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Animal models
Psychopharmacology
Neuroscience
Behavior
Psychiatry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,063
3,186
0.395
* Total Citation Counts Rankings
Ranking Based On Selection: 17
positive psychology
meaning
relational well-being
cultures of positivity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,816
3,697
0.473
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Ecotoxicology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,735
3,676
0.475
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Pharmaceutics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,668
3,163
0.412
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Differential Equations
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,534
4,550
0.604
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Agricultural Entomology
Environmental Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,450
3,806
0.511
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Urban ecology
Vegetation science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,240
4,409
0.609
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Parasitology
Herpetology
Batrachology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,919
2,282
0.330
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Botany
IKS
Plant Science
Ethnopharmacology
Ethnobotany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,680
4,664
0.698
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Nutrition leadership
haemostasis
human nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,395
2,708
0.423
* Total Citation Counts Rankings
Rankings
13,999
42
1
Ranking Based On Selection: 1
Christo Venter
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,171
12,798
0.311
Pulsars
gamma-ray astronomy
globular clusters
cosmic rays
* Total Citation Counts Rankings
Rankings
28,193
82
2
Ranking Based On Selection: 2
Olubukola Oluranti Babalola
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,210
22,694
0.866
Microbial Ecology
Soil Metagenomics
Plant-Microbe Interactions
* Total Citation Counts Rankings
Rankings
30,445
93
3
Ranking Based On Selection: 3
Markus Boettcher
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,910
9,665
0.388
* Total Citation Counts Rankings
Rankings
42,196
134
4
Ranking Based On Selection: 4
Sebastiaan Rothmann
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,750
8,438
0.427
Positive Organizations
Capabilities
Engagement
Flourishing
Well-being
* Total Citation Counts Rankings
Rankings
44,835
147
5
Ranking Based On Selection: 5
Donald Kurtz
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,888
5,206
0.276
* Total Citation Counts Rankings
Rankings
57,962
195
6
Ranking Based On Selection: 6
AS Oyekale
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,608
10,181
0.652
Environmental
Health
& Development Economics
* Total Citation Counts Rankings
Rankings
59,007
198
7
Ranking Based On Selection: 7
Iurii Sushch
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,407
8,386
0.544
Astrophysics
Astronomy
* Total Citation Counts Rankings
Rankings
81,757
284
8
Ranking Based On Selection: 8
Paulus Kruger
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,915
6,729
0.565
Low Noise Amplifiers
Gamma-ray astrophysics
* Total Citation Counts Rankings
Rankings
84,589
291
9
Ranking Based On Selection: 9
Indra Bahadur
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,585
8,195
0.707
Thermodynamics of solution
DESs
Ionic Liquids
Corrosion
Separation Technology
* Total Citation Counts Rankings
Rankings
89,246
310
10
Ranking Based On Selection: 10
Stefan Siebert
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,082
4,939
0.446
* Total Citation Counts Rankings
Rankings
93,183
324
11
Ranking Based On Selection: 11
Arvind Kumar Gupta
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,684
4,087
0.383
16S rRNA gene
bacterial diversity
insect gut bacteria
microbial community
Metagenomics
* Total Citation Counts Rankings
Rankings
96,554
344
12
Ranking Based On Selection: 12
Dmitri Bessarabov
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,359
7,561
0.730
membranes
hydrogen
fuel cells
electrolysis
* Total Citation Counts Rankings
Rankings
113,360
420
13
Ranking Based On Selection: 13
Natalia Zywucka
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,999
6,562
0.729
* Total Citation Counts Rankings
Rankings
127,091
482
14
Ranking Based On Selection: 14
Damian C. Onwudiwe
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,119
6,724
0.828
Materials Chemistry
Green Chemistry
Chemical Engineering
Water Treatment
Environmental Analysis
* Total Citation Counts Rankings
Rankings
127,448
488
15
Ranking Based On Selection: 15
Etienne Barnard
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,101
1,436
0.177
Speech technology
pattern recognition
machine learning
deep neural networks
* Total Citation Counts Rankings
Rankings
128,108
494
16
Ranking Based On Selection: 16
BH Harvey
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,063
3,186
0.395
Animal models
Psychopharmacology
Neuroscience
Behavior
Psychiatry
* Total Citation Counts Rankings
Rankings
132,630
520
17
Ranking Based On Selection: 17
Marie Wissing
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,816
3,697
0.473
positive psychology
meaning
relational well-being
cultures of positivity
* Total Citation Counts Rankings
Rankings
134,103
526
18
Ranking Based On Selection: 18
H Bouwman
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,735
3,676
0.475
* Total Citation Counts Rankings
Rankings
135,423
537
19
Ranking Based On Selection: 19
Josias Hamman
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,668
3,163
0.412
* Total Citation Counts Rankings
Rankings
138,031
549
20
Ranking Based On Selection: 20
Masood Khalique
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,534
4,550
0.604
* Total Citation Counts Rankings
Rankings
139,709
555
21
Ranking Based On Selection: 21
Van Den Berg, J. Johnnie
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,450
3,806
0.511
Agricultural Entomology
Environmental Sciences
* Total Citation Counts Rankings
Rankings
143,994
574
22
Ranking Based On Selection: 22
Sarel Cilliers
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,240
4,409
0.609
Urban ecology
Vegetation science
* Total Citation Counts Rankings
Rankings
150,994
597
23
Ranking Based On Selection: 23
Louis Du Preez
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,919
2,282
0.330
Parasitology
Herpetology
Batrachology
* Total Citation Counts Rankings
Rankings
156,670
617
24
Ranking Based On Selection: 24
Adeyemi Oladapo Aremu
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,680
4,664
0.698
Botany
IKS
Plant Science
Ethnopharmacology
Ethnobotany
* Total Citation Counts Rankings
Rankings
163,863
650
25
Ranking Based On Selection: 25
Johann Jerling
North West University
Potchefstroom, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,395
2,708
0.423
Nutrition leadership
haemostasis
human nutrition