Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 381 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
Wastewater Technology
Algal Biotechnology
Biofuels
Bioremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,002
11,696
0.616
* Total Citation Counts Rankings
Ranking Based On Selection: 2
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,419
8,073
0.463
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Nanoscience/nanotechnology
Materials science
Composite/nanocomposite
Water Research & Inorg. Chem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,293
7,398
0.557
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Mathematics
Mathematical Physics
Mathematical Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,562
3,843
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Biotechnology
Microbiology
Enzyme Technology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,447
4,426
0.469
* Total Citation Counts Rankings
Ranking Based On Selection: 6
General Relativity
Dark Energy
Modified theories of gravity
Cosmology
Integrability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,669
6,936
0.800
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Pharmaceutical Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,944
5,885
0.741
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Algal Biofuels
Biotechnology
Nutrient recovery
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,532
4,050
0.538
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Drug development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,637
2,794
0.421
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Applied & Theoretical Machine Learning
Knowledge Discovery and Reasoning with Uncertainty
Image and Signal Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,421
4,053
0.631
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Environmental Microbiology
Molecular Biology
Emerging Pathogens
Wastewater Treatment
Bioenergy from waste streams
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,082
4,568
0.751
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Sport Chiropractic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,140
1,290
0.251
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Computational chemistry and Electroanalytical chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,921
3,258
0.662
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Organic Chemistry
Natural Product Chemistry
Organic Synthesis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,528
1,121
0.318
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Water and wastewater treatment
Liquid extraction
Adsorption
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,351
3,194
0.953
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Tourism
Community-based tourism
Food tourism
Food
Sport event tourism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,105
2,356
0.759
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Lignocellulose functionalisation
biocatalysis
bioactive compounds
antioxidants
oxidases
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,964
1,513
0.510
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,843
1,231
0.433
* Total Citation Counts Rankings
Ranking Based On Selection: 19
criminolgy
urban studies
ethnography
urban safety
security governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,743
924
0.337
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Electrical
Electronic and Computer Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,704
1,460
0.540
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Microalgae
Algal Biotechnology
Bioremediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,322
1,824
0.786
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Mathematical modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,246
937
0.417
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Peacebuilding
restorative justice
inequality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,230
702
0.315
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Natural Product Synthesis
Catalysis
Nanotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,189
1,387
0.634
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Bioprocess Technology
Environmental Microbiology
Waste Valorization
Indigenous Fermented Foods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,156
1,867
0.866
* Total Citation Counts Rankings
Rankings
44,477
143
1
Ranking Based On Selection: 1
Faizal Bux
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,002
11,696
0.616
Wastewater Technology
Algal Biotechnology
Biofuels
Bioremediation
* Total Citation Counts Rankings
Rankings
50,095
160
2
Ranking Based On Selection: 2
TA Stenstrom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,419
8,073
0.463
* Total Citation Counts Rankings
Rankings
71,488
241
3
Ranking Based On Selection: 3
Ajay Kumar Mishra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,293
7,398
0.557
Nanoscience/nanotechnology
Materials science
Composite/nanocomposite
Water Research & Inorg. Chem
* Total Citation Counts Rankings
Rankings
105,815
380
4
Ranking Based On Selection: 4
S Moyo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,562
3,843
0.402
Mathematics
Mathematical Physics
Mathematical Sciences
* Total Citation Counts Rankings
Rankings
107,304
388
5
Ranking Based On Selection: 5
Suren Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,447
4,426
0.469
Biotechnology
Microbiology
Enzyme Technology
* Total Citation Counts Rankings
Rankings
118,244
442
6
Ranking Based On Selection: 6
Andronikos Paliathanasis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,669
6,936
0.800
General Relativity
Dark Energy
Modified theories of gravity
Cosmology
Integrability
* Total Citation Counts Rankings
Rankings
130,240
508
7
Ranking Based On Selection: 7
Katharigatta Narayanaswamy Venugopala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,944
5,885
0.741
Pharmaceutical Chemistry
* Total Citation Counts Rankings
Rankings
138,065
550
8
Ranking Based On Selection: 8
Ismail Rawat
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,532
4,050
0.538
Algal Biofuels
Biotechnology
Nutrient recovery
* Total Citation Counts Rankings
Rankings
157,656
620
9
Ranking Based On Selection: 9
Bharti Odhav
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,637
2,794
0.421
* Total Citation Counts Rankings
Rankings
163,163
646
10
Ranking Based On Selection: 10
Bhekisipho Twala
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,421
4,053
0.631
Applied & Theoretical Machine Learning
Knowledge Discovery and Reasoning with Uncertainty
Image and Signal Processing
* Total Citation Counts Rankings
Rankings
172,314
696
11
Ranking Based On Selection: 11
Sheena Kumari
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,082
4,568
0.751
Environmental Microbiology
Molecular Biology
Emerging Pathogens
Wastewater Treatment
Bioenergy from waste streams
* Total Citation Counts Rankings
Rankings
203,370
848
12
Ranking Based On Selection: 12
Henry Pollard
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,140
1,290
0.251
* Total Citation Counts Rankings
Rankings
212,104
890
13
Ranking Based On Selection: 13
Krishna Bisetty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,921
3,258
0.662
Computational chemistry and Electroanalytical chemistry
* Total Citation Counts Rankings
Rankings
286,762
1,252
14
Ranking Based On Selection: 14
Francis Shode
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,528
1,121
0.318
Organic Chemistry
Natural Product Chemistry
Organic Synthesis
* Total Citation Counts Rankings
Rankings
299,702
1,324
15
Ranking Based On Selection: 15
Sudesh Rathilal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,351
3,194
0.953
Water and wastewater treatment
Liquid extraction
Adsorption
* Total Citation Counts Rankings
Rankings
319,400
1,430
16
Ranking Based On Selection: 16
Andrea Giampiccoli
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,105
2,356
0.759
Tourism
Community-based tourism
Food tourism
Food
Sport event tourism
* Total Citation Counts Rankings
Rankings
331,821
1,487
17
Ranking Based On Selection: 17
Tukayi Kudanga
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,964
1,513
0.510
Lignocellulose functionalisation
biocatalysis
bioactive compounds
antioxidants
oxidases
* Total Citation Counts Rankings
Rankings
343,193
1,553
18
Ranking Based On Selection: 18
Kugen Permaul
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,843
1,231
0.433
* Total Citation Counts Rankings
Rankings
353,309
1,604
19
Ranking Based On Selection: 19
Monique Michal Marks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,743
924
0.337
criminolgy
urban studies
ethnography
urban safety
security governance
* Total Citation Counts Rankings
Rankings
357,355
1,623
20
Ranking Based On Selection: 20
Inno Davidson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,704
1,460
0.540
Electrical
Electronic and Computer Engineering
* Total Citation Counts Rankings
Rankings
401,666
1,872
21
Ranking Based On Selection: 21
Nirmal Renuka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,322
1,824
0.786
Microalgae
Algal Biotechnology
Bioremediation
* Total Citation Counts Rankings
Rankings
411,723
1,932
22
Ranking Based On Selection: 22
Kevin Jan Duffy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,246
937
0.417
* Total Citation Counts Rankings
Rankings
413,925
1,950
23
Ranking Based On Selection: 23
Geoff Harris
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,230
702
0.315
Peacebuilding
restorative justice
inequality
* Total Citation Counts Rankings
Rankings
419,536
1,983
24
Ranking Based On Selection: 24
Rm Gengan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,189
1,387
0.634
Natural Product Synthesis
Catalysis
Nanotechnology
* Total Citation Counts Rankings
Rankings
424,260
2,013
25
Ranking Based On Selection: 25
Santhosh Pillai|Santhosh Kumar Kuttan Pillai, Santhosh Kumar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,156
1,867
0.866
Bioprocess Technology
Environmental Microbiology
Waste Valorization
Indigenous Fermented Foods