Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 237 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
Telecommunication Networks
Internet of Things
Cybersecurit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,157
10,203
0.914
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Environmental Engineering
Wastewater Engineering
Advanced Oxidation Processes
photocatalysis
environmental catalysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,440
5,298
0.712
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Design and development of heterogeneous catalysts
Environmental catalysis (NOx
SO2
H2S
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,383
5,360
0.726
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Biomedical Signal Processing
Medical Informatics
Neuroscience
Artificial Intelligence
Health A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,009
3,631
0.518
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Heterogeneous catalysis
Catalyst synthesis and characterization
Hydrogen production
Reformin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,331
4,609
0.865
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Quality of Farm Animal Product
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,241
1,475
0.348
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Educational technology
Computational thinking
AI in education
VR/AR in educatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,113
3,496
0.850
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Renewable Energy
Solar Energy
Sustainability
Environmental Engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,893
1,534
0.394
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Heterogeneous catalysis
Electrochemical engineering
Biomass thermochemical conversio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,832
1,971
0.514
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
Corporate Social Responsibilit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,703
2,608
0.704
* Total Citation Counts Rankings
Ranking Based On Selection: 11
eddy current testing
computational electromagnetic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,511
1,231
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Software Engineering
Cloud Computing
Software Cost Estimatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,231
2,614
0.809
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Mechanical Design & Analysis
Computer Aided Design
Geometric Modeling
Computer Graphic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,655
372
0.140
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Numerical Analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,587
316
0.122
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Clean Energy Technologie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,567
701
0.273
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Electrical Power engineering
Renewable Energy Sources
Electromagnetic Compatibilit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,496
1,619
0.649
* Total Citation Counts Rankings
Ranking Based On Selection: 17
finance
econometrics
accountin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,507
1,824
0.728
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Biomedical Engineering
Signal Processing
Mathematical Modeling
HRV analysis
EEG analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,445
1,510
0.618
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,431
2,027
0.834
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Numerical Analysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,314
292
0.126
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,306
691
0.300
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Educational Technology
HCI
Participatory Design
Ubiquitous Computin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,206
1,036
0.470
* Total Citation Counts Rankings
Ranking Based On Selection: 23
President of the HSB
Director of BioMed (MSc)
Director of BCM La
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,145
1,346
0.628
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Econometrics
Applied Economics
Macroeconomics
Time Serie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,158
1,204
0.558
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Thermal and electrochemical energy systems
heat engines and power plants
energy conversion and storag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,098
876
0.418
* Total Citation Counts Rankings
Rankings
92,585
495
1
Ranking Based On Selection: 1
Panagiotis Sarigiannidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,157
10,203
0.914
Telecommunication Networks
Internet of Things
Cybersecurit
* Total Citation Counts Rankings
Rankings
146,114
922
2
Ranking Based On Selection: 2
Zacharias Frontistis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,440
5,298
0.712
Environmental Engineering
Wastewater Engineering
Advanced Oxidation Processes
photocatalysis
environmental catalysi
* Total Citation Counts Rankings
Rankings
147,318
928
3
Ranking Based On Selection: 3
Maria A Goula
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,383
5,360
0.726
Design and development of heterogeneous catalysts
Environmental catalysis (NOx
SO2
H2S
* Total Citation Counts Rankings
Rankings
155,598
1,001
4
Ranking Based On Selection: 4
Markos G Tsipouras
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,009
3,631
0.518
Biomedical Signal Processing
Medical Informatics
Neuroscience
Artificial Intelligence
Health A
* Total Citation Counts Rankings
Rankings
204,857
1,461
5
Ranking Based On Selection: 5
Nikolaos Charisiou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,331
4,609
0.865
Heterogeneous catalysis
Catalyst synthesis and characterization
Hydrogen production
Reformin
* Total Citation Counts Rankings
Rankings
254,145
1,917
6
Ranking Based On Selection: 6
Eleni Kasapidou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,241
1,475
0.348
* Total Citation Counts Rankings
Rankings
261,363
1,992
7
Ranking Based On Selection: 7
Nikolaos Pellas, Νικόλαος Πέλλας
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,113
3,496
0.850
Educational technology
Computational thinking
AI in education
VR/AR in educatio
* Total Citation Counts Rankings
Rankings
274,306
2,105
8
Ranking Based On Selection: 8
Manolis Souliotis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,893
1,534
0.394
Renewable Energy
Solar Energy
Sustainability
Environmental Engineerin
* Total Citation Counts Rankings
Rankings
278,071
2,147
9
Ranking Based On Selection: 9
George Marnellos
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,832
1,971
0.514
Heterogeneous catalysis
Electrochemical engineering
Biomass thermochemical conversio
* Total Citation Counts Rankings
Rankings
286,446
2,213
10
Ranking Based On Selection: 10
Grigoris Giannarakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,703
2,608
0.704
Corporate Social Responsibilit
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
299,784
2,337
11
Ranking Based On Selection: 11
Theodoros Theodoulidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,511
1,231
0.351
eddy current testing
computational electromagnetic
* Total Citation Counts Rankings
Rankings
321,486
2,529
12
Ranking Based On Selection: 12
Stamatia Bibi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,231
2,614
0.809
Software Engineering
Cloud Computing
Software Cost Estimatio
* Total Citation Counts Rankings
Rankings
376,750
3,048
13
Ranking Based On Selection: 13
Nickolas S Sapidis|Nikolaos Sapidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,655
372
0.140
Mechanical Design & Analysis
Computer Aided Design
Geometric Modeling
Computer Graphic
* Total Citation Counts Rankings
Rankings
384,461
3,112
14
Ranking Based On Selection: 14
Zacharoula Kalogiratou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,587
316
0.122
* Total Citation Counts Rankings
Rankings
386,735
3,131
15
Ranking Based On Selection: 15
Georgios Skodras
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,567
701
0.273
* Total Citation Counts Rankings
Rankings
394,919
3,224
17
Ranking Based On Selection: 16
Georgios Christoforidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,496
1,619
0.649
Electrical Power engineering
Renewable Energy Sources
Electromagnetic Compatibilit
* Total Citation Counts Rankings
Rankings
393,632
3,212
16
Ranking Based On Selection: 17
Nikolaos Sariannidis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,507
1,824
0.728
finance
econometrics
accountin
* Total Citation Counts Rankings
Rankings
401,203
3,278
18
Ranking Based On Selection: 18
Dimitrios G Tsalikakis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,445
1,510
0.618
Biomedical Engineering
Signal Processing
Mathematical Modeling
HRV analysis
EEG analysi
* Total Citation Counts Rankings
Rankings
402,858
3,294
19
Ranking Based On Selection: 19
Fotios Chatzitheodoridis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,431
2,027
0.834
* Total Citation Counts Rankings
Rankings
417,964
3,424
20
Ranking Based On Selection: 20
Theodoros Monovasilis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,314
292
0.126
* Total Citation Counts Rankings
Rankings
418,994
3,435
21
Ranking Based On Selection: 21
Vaya Dinopoulou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,306
691
0.300
* Total Citation Counts Rankings
Rankings
432,766
3,545
22
Ranking Based On Selection: 22
George Palaigeorgiou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,206
1,036
0.470
Educational Technology
HCI
Participatory Design
Ubiquitous Computin
* Total Citation Counts Rankings
Rankings
441,623
3,640
24
Ranking Based On Selection: 23
A Tsouknidas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,145
1,346
0.628
President of the HSB
Director of BioMed (MSc)
Director of BCM La
* Total Citation Counts Rankings
Rankings
439,709
3,623
23
Ranking Based On Selection: 24
Chaido Dritsaki
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,158
1,204
0.558
Econometrics
Applied Economics
Macroeconomics
Time Serie
* Total Citation Counts Rankings
Rankings
448,763
3,698
25
Ranking Based On Selection: 25
Douvartzides Savvas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,098
876
0.418
Thermal and electrochemical energy systems
heat engines and power plants
energy conversion and storag