Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 25 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Environmental Sciences
Sustainability
Waste Management
Renewable Energy
Public Sevices Innovatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,567
3,067
0.860
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Energy Systems
Biofuels
Algae
Process optimisation
Critical Infrastructure Resilienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,455
1,158
0.472
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Stroke Rehabilitation
Cross education of muscle strength
Mirror Therapy
Sports Medicine
Chronic Ankle Instabilit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,208
897
0.406
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,121
1,604
0.756
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Chemistry Education
Analytical Science
Metabolomics
Forensic Science
Nutritio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,585
637
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Bioengineering
medical devices
educational polic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,485
246
0.166
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Nanomaterials
Advanced Oxidation
Photocatalysis
Physical Chemistry
Water treatmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,232
1,231
0.999
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Agricultural ecology
plant conservation
semi-natural grassland conservation
farmland habitats
High Nature Value (HNV) farml
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
564
401
0.711
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Chemical Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
507
507
1.000
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Surface Modifications
Coatings
Plasma processing
Heat Transfer
Interfacial Phenomen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
344
343
0.997
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Bioenergy
Environmental Engineering
Energy Engineering
Anaerobic digestio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
244
0.996
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Robotics
Sensor Fusion
Computer Visio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
197
197
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Material Characterisation
Laser Transmission Welding of Polymers
Laser Treatments on Polymers
Design of Experiment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
194
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Tourism
Biosecurit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
109
0.973
* Total Citation Counts Rankings
Ranking Based On Selection: 15
machine learning
data science
computer vision
deep learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
105
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Advanced control
Machine learning
Sensing
Injection Moulding
Additive manufacturin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81
81
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Electromechanics
tribology
composite
rotordynamic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80
68
0.850
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Biochemistry
Biolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73
6
0.082
* Total Citation Counts Rankings
Ranking Based On Selection: 19
sociology
food
care
mental health
higher educatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66
57
0.864
* Total Citation Counts Rankings
Ranking Based On Selection: 20
e-learning
online learning
distance learning
strategy
staff developmen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
12
0.267
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Production scheduling
Process optimisatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38
33
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37
7
0.189
* Total Citation Counts Rankings
Ranking Based On Selection: 23
quality
excellence
human systems
quality in the service of other
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36
24
0.667
* Total Citation Counts Rankings
Ranking Based On Selection: 24
BioPharma
MedTech
R
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
27
1.000
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Autonomous Systems
Computer Vision
Perceptio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24
21
0.875
* Total Citation Counts Rankings
Rankings
295,687
1,418
1
Ranking Based On Selection: 1
John Bartlett
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,567
3,067
0.860
Environmental Sciences
Sustainability
Waste Management
Renewable Energy
Public Sevices Innovatio
* Total Citation Counts Rankings
Rankings
399,976
1,944
2
Ranking Based On Selection: 2
Ehiaze Augustine Ehimen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,455
1,158
0.472
Energy Systems
Biofuels
Algae
Process optimisation
Critical Infrastructure Resilienc
* Total Citation Counts Rankings
Rankings
432,503
2,090
3
Ranking Based On Selection: 3
Kenneth Monaghan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,208
897
0.406
Stroke Rehabilitation
Cross education of muscle strength
Mirror Therapy
Sports Medicine
Chronic Ankle Instabilit
* Total Citation Counts Rankings
Rankings
445,135
2,145
4
Ranking Based On Selection: 4
Ailish (Breen) Flaherty
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,121
1,604
0.756
* Total Citation Counts Rankings
Rankings
542,191
2,612
5
Ranking Based On Selection: 5
Geraldine Dowling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,585
637
0.402
Chemistry Education
Analytical Science
Metabolomics
Forensic Science
Nutritio
* Total Citation Counts Rankings
Rankings
564,934
2,721
6
Ranking Based On Selection: 6
Brendan Mccormack
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,485
246
0.166
Bioengineering
medical devices
educational polic
* Total Citation Counts Rankings
Rankings
630,629
3,021
7
Ranking Based On Selection: 7
Nishanth Thomas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,232
1,231
0.999
Nanomaterials
Advanced Oxidation
Photocatalysis
Physical Chemistry
Water treatmen
* Total Citation Counts Rankings
Rankings
909,005
4,147
8
Ranking Based On Selection: 8
Caroline A. Sullivan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
564
401
0.711
Agricultural ecology
plant conservation
semi-natural grassland conservation
farmland habitats
High Nature Value (HNV) farml
* Total Citation Counts Rankings
Rankings
952,452
4,373
9
Ranking Based On Selection: 9
Ryan Walden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
507
507
1.000
* Total Citation Counts Rankings
Rankings
1,114,765
5,213
10
Ranking Based On Selection: 10
Amit Goswami
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
344
343
0.997
Surface Modifications
Coatings
Plasma processing
Heat Transfer
Interfacial Phenomen
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
1,268,768
5,898
11
Ranking Based On Selection: 11
Sean O'Connor
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
245
244
0.996
Bioenergy
Environmental Engineering
Energy Engineering
Anaerobic digestio
* Total Citation Counts Rankings
Rankings
1,376,622
6,293
12
Ranking Based On Selection: 12
Zainab Saleem
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
197
197
1.000
Robotics
Sensor Fusion
Computer Visio
* Total Citation Counts Rankings
Rankings
1,384,668
6,324
13
Ranking Based On Selection: 13
Foram Dave
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
194
194
1.000
Material Characterisation
Laser Transmission Welding of Polymers
Laser Treatments on Polymers
Design of Experiment
* Total Citation Counts Rankings
Rankings
1,667,968
7,169
14
Ranking Based On Selection: 14
Domhnall Melly
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
109
0.973
* Total Citation Counts Rankings
Rankings
1,699,071
7,256
15
Ranking Based On Selection: 15
Faizan Munawar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105
105
1.000
machine learning
data science
computer vision
deep learnin
* Total Citation Counts Rankings
Rankings
1,821,381
7,590
16
Ranking Based On Selection: 16
Mandana Kariminejad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81
81
1.000
Advanced control
Machine learning
Sensing
Injection Moulding
Additive manufacturin
* Total Citation Counts Rankings
Rankings
1,829,944
7,619
17
Ranking Based On Selection: 17
Kamal Basumatary
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80
68
0.850
Electromechanics
tribology
composite
rotordynamic
* Total Citation Counts Rankings
Rankings
1,873,840
7,713
18
Ranking Based On Selection: 18
Oliver Joyce
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73
6
0.082
* Total Citation Counts Rankings
Rankings
1,915,029
7,805
19
Ranking Based On Selection: 19
Deirdre Byrne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
66
57
0.864
sociology
food
care
mental health
higher educatio
* Total Citation Counts Rankings
Rankings
2,068,304
8,123
20
Ranking Based On Selection: 20
Brian Mulligan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45
12
0.267
e-learning
online learning
distance learning
strategy
staff developmen
* Total Citation Counts Rankings
Rankings
2,122,866
8,234
21
Ranking Based On Selection: 21
Mohamed Awad
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38
33
0.868
* Total Citation Counts Rankings
Rankings
2,135,235
8,258
22
Ranking Based On Selection: 22
David Mulligan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37
7
0.189
* Total Citation Counts Rankings
Rankings
2,142,081
8,272
23
Ranking Based On Selection: 23
Bob Kennedy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36
24
0.667
quality
excellence
human systems
quality in the service of other
* Total Citation Counts Rankings
Rankings
2,223,800
8,427
24
Ranking Based On Selection: 24
Mary Butler
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27
27
1.000
* Total Citation Counts Rankings
Rankings
2,260,550
8,485
25
Ranking Based On Selection: 25
Mahmoud Tahmasebi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24
21
0.875