Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 548 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Applied linguistics
language learning and teaching
language education policy and practic
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,729
37,313
0.177
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
social science
methodology
philosoph
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,612
24,890
0.258
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
leadership and organizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,872
23,227
0.423
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Astronom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,168
20,530
0.244
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,214
11,399
0.315
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
Learning Analytics
Learning Design
Internationalisation
Transplant Athlete
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,141
11,035
0.644
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Management
Business
Innovation
Human Resource Management
Health Service Leadership and Managemen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,015
10,534
0.301
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,810
9,253
0.266
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
Educational Technology
Learning Sciences
STEM learning
human computer interactio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,983
8,268
0.267
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* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Extragalactic astronomy
infrared astronomy
radio astronom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,989
7,748
0.267
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
mobile learning
mobile language learning
MAL
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,617
7,486
0.402
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
qualitative methods
medical sociology
focus group
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,402
7,345
0.314
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
Paleoclimatology
paleoecology
paleobotan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,535
7,214
0.436
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Nonmarket Strategy
International Business
CS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,386
6,695
0.465
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Environmental Studies
International Studies
Development
Citizenship
Political Participatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,576
6,108
0.259
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
Climate - sustainability - energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,896
5,769
0.583
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
Renewable Energy Materials
Graphene
Wastewater treatment
hydrogen generation
Surfac
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,974
5,214
0.435
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
education
learning analytics
MOOCs
distance learning
online learnin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,789
5,119
0.474
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
Statistical methodology
epidemiolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,255
5,028
0.291
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Moon
Lunar volatiles
Mars
Meteorites
Geochemistr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,588
4,939
0.575
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
Social Psychology
Affect
Emotion
Process theory
Human Right
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,937
4,722
0.432
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Semantic Web
Social Web
Web Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,024
4,670
0.359
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Human Computer Interaction
Music Computing
Pervasive Computing
Embodied Interaction
Foundations of Computatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,280
4,627
0.217
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Agroforestry
Biocultural Diversity
Food Security
Long-term Ecology
Social-ecological system
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,022
4,520
0.451
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
social psychology
prejudice
intergroup conflict
place identity
intergroup contac
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,159
4,448
0.399
* Last 6 Years Citation Counts Rankings
Rankings
4,654
367
1
Ranking Based On Selection: 1
Jim Coleman
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,729
37,313
0.177
Applied linguistics
language learning and teaching
language education policy and practic
* Last 6 Years Citation Counts Rankings
Rankings
8,782
754
2
Ranking Based On Selection: 2
Martyn Hammersley
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,612
24,890
0.258
social science
methodology
philosoph
* Last 6 Years Citation Counts Rankings
Rankings
9,838
845
3
Ranking Based On Selection: 3
Emma Bell
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,872
23,227
0.423
* Last 6 Years Citation Counts Rankings
Rankings
11,930
1,041
4
Ranking Based On Selection: 4
Glenn White
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
84,168
20,530
0.244
* Last 6 Years Citation Counts Rankings
Rankings
28,844
2,576
5
Ranking Based On Selection: 5
Nigel Cross
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,214
11,399
0.315
* Last 6 Years Citation Counts Rankings
Rankings
30,244
2,687
6
Ranking Based On Selection: 6
Bart Rienties
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,141
11,035
0.644
Learning Analytics
Learning Design
Internationalisation
Transplant Athlete
* Last 6 Years Citation Counts Rankings
Rankings
32,356
2,849
7
Ranking Based On Selection: 7
John Storey
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,015
10,534
0.301
Management
Business
Innovation
Human Resource Management
Health Service Leadership and Managemen
* Last 6 Years Citation Counts Rankings
Rankings
39,218
3,411
8
Ranking Based On Selection: 8
Helen Sharp
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,810
9,253
0.266
* Last 6 Years Citation Counts Rankings
Rankings
46,017
3,982
9
Ranking Based On Selection: 9
Mike Sharples
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,983
8,268
0.267
Educational Technology
Learning Sciences
STEM learning
human computer interactio
* Last 6 Years Citation Counts Rankings
Rankings
50,474
4,313
10
Ranking Based On Selection: 10
Stephen Serjeant
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,989
7,748
0.267
Extragalactic astronomy
infrared astronomy
radio astronom
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Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
* Last 6 Years Citation Counts Rankings
Rankings
53,006
4,514
11
Ranking Based On Selection: 11
Agnes Kukulska Hulme
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,617
7,486
0.402
mobile learning
mobile language learning
MAL
* Last 6 Years Citation Counts Rankings
Rankings
54,471
4,627
12
Ranking Based On Selection: 12
Rosaline Barbour
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,402
7,345
0.314
qualitative methods
medical sociology
focus group
* Last 6 Years Citation Counts Rankings
Rankings
55,907
4,728
13
Ranking Based On Selection: 13
Robert Spicer
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,535
7,214
0.436
Paleoclimatology
paleoecology
paleobotan
* Last 6 Years Citation Counts Rankings
Rankings
61,941
5,198
14
Ranking Based On Selection: 14
George Frynas
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,386
6,695
0.465
Nonmarket Strategy
International Business
CS
* Last 6 Years Citation Counts Rankings
Rankings
70,206
5,833
15
Ranking Based On Selection: 15
Mark J Smith
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,576
6,108
0.259
Environmental Studies
International Studies
Development
Citizenship
Political Participatio
* Last 6 Years Citation Counts Rankings
Rankings
75,840
6,256
16
Ranking Based On Selection: 16
Neil R Edwards
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,896
5,769
0.583
Climate - sustainability - energ
* Last 6 Years Citation Counts Rankings
Rankings
86,620
7,050
17
Ranking Based On Selection: 17
Satheesh Krishnamurthy
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,974
5,214
0.435
Renewable Energy Materials
Graphene
Wastewater treatment
hydrogen generation
Surfac
* Last 6 Years Citation Counts Rankings
Rankings
88,656
7,214
18
Ranking Based On Selection: 18
Rebecca Ferguson
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,789
5,119
0.474
education
learning analytics
MOOCs
distance learning
online learnin
* Last 6 Years Citation Counts Rankings
Rankings
90,700
7,365
19
Ranking Based On Selection: 19
Paddy Farrington
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,255
5,028
0.291
* Last 6 Years Citation Counts Rankings
Rankings
92,792
7,529
20
Ranking Based On Selection: 20
Mahesh Anand
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,588
4,939
0.575
Moon
Lunar volatiles
Mars
Meteorites
Geochemistr
* Last 6 Years Citation Counts Rankings
Rankings
98,297
7,929
21
Ranking Based On Selection: 21
Paul Stenner
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,937
4,722
0.432
Social Psychology
Affect
Emotion
Process theory
Human Right
* Last 6 Years Citation Counts Rankings
Rankings
99,702
8,024
22
Ranking Based On Selection: 22
Harith Alani
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,024
4,670
0.359
* Last 6 Years Citation Counts Rankings
Rankings
100,838
8,087
23
Ranking Based On Selection: 23
Simon Holland
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,280
4,627
0.217
Human Computer Interaction
Music Computing
Pervasive Computing
Embodied Interaction
Foundations of Computatio
* Last 6 Years Citation Counts Rankings
Rankings
103,895
8,338
24
Ranking Based On Selection: 24
Shonil Bhagwat
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,022
4,520
0.451
Agroforestry
Biocultural Diversity
Food Security
Long-term Ecology
Social-ecological system
* Last 6 Years Citation Counts Rankings
Rankings
105,947
8,487
25
Ranking Based On Selection: 25
John Dixon
Open University UK
Milton Keynes, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,159
4,448
0.399
social psychology
prejudice
intergroup conflict
place identity
intergroup contac