Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Achille Mbembe](https://cdn.adscientificindex.com/pictures/f2/102323.jpg)
African politics
history
colonialism
race
enlightenment
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
285
184
0.646
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Yusef Waghid](https://cdn.adscientificindex.com/pictures/1b/92494.jpg)
African Philosophy
Philosophy of Education
Global Citizenship
Democratic Citizenship Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
142
80
0.563
* Total i10 IndexRankings
Ranking Based On Selection: 3
![John Parkington](https://cdn.adscientificindex.com/pictures/39/100312.jpg)
rock art
shell middens
human evolution
South African Prehistory
San hunter gatherers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
136
81
0.596
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Gerald West](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
34
0.288
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Kanu Ikechukwu Anthony](https://cdn.adscientificindex.com/pictures/f7/3430875.jpg)
African Philosophy
African Metaphysics
African Bioethics
African Traditional Religion
African Cultural Studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
98
0.845
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Ernst M. Conradie](https://cdn.adscientificindex.com/pictures/7e/97244.jpg)
Systematic theology
ecotheology
ecumenical theology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
47
0.505
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Ogbu Kalu](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
25
0.352
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Goolam Vahed](/user/assets/images/profile/no-profile-photo.png)
Indian Diaspora
Islam in South Africa
Sports History
Citizenship
Transnationalism
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
26
0.382
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Mohamed Salama](https://cdn.adscientificindex.com/pictures/ba/94585.jpg)
Neurodegenerative Diseases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
56
0.836
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Isabel Hofmeyr](https://cdn.adscientificindex.com/pictures/bf/99673.jpg)
Postcolonial literary studies
print culture
book history
oceanic studies
Indian Ocean studies
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
33
0.524
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Jeremy Punt](https://cdn.adscientificindex.com/pictures/90/100062.jpg)
Biblical hermeneutics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
10
0.167
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Johan Cilliers](https://cdn.adscientificindex.com/pictures/ad/100177.jpg)
Theology
Aesthetics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
13
0.241
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Philip Higgs](https://cdn.adscientificindex.com/pictures/d6/88898.jpg)
Philosophy of Education
Higher Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
21
0.404
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Sive Masawe](/user/assets/images/profile/no-profile-photo.png)
historical information
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
41
0.804
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Cas Wepener|Casparus J. Wepener, C.J. Wepener, Casparus Wepener](https://cdn.adscientificindex.com/pictures/69/105369.jpg)
Liturgy
Ritual
Homiletics
Practical Theology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
50
15
0.300
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Ernest Van Eck](https://cdn.adscientificindex.com/pictures/75/97238.jpg)
New Testament
Parables
Social-scientific criticism
Sexuality in the ancient world
Narrative criticism
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
11
0.224
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Jonathan Okeke Chimakonam](https://cdn.adscientificindex.com/pictures/01/100360.jpg)
African Philosophy
Logic
Decoloniality
Racism
Ethics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
41
0.854
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Peter Delius](/user/assets/images/profile/no-profile-photo.png)
African History
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
27
0.563
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Julius Gathogo](https://cdn.adscientificindex.com/pictures/f1/100574.jpg)
Oral histories
indigenous studies
theology
education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
26
0.553
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Madipoane Masenya](https://cdn.adscientificindex.com/pictures/93/92810.jpg)
Old Testament Wisdom literature
African biblical hermeneutics
Hebrew Bible and gender
Bible in African context
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
17
0.362
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Gert J Steyn](https://cdn.adscientificindex.com/pictures/56/98193.jpg)
Septuagint studies
Philo
Hebrews
Luke-Acts
Matthew
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
2
0.043
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Peter Alexander](https://cdn.adscientificindex.com/pictures/56/88790.jpg)
Social and political change
African studies
comparative labour history
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
20
0.444
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Ayodeji Olukoju.](https://cdn.adscientificindex.com/pictures/f9/104588.jpg)
Maritime History
Economic History
Social History
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
10
0.222
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Vhumani Magezi](https://cdn.adscientificindex.com/pictures/e7/91808.jpg)
Theology
Pastoral care
Spirituality
Development
Religious Health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
31
0.705
* Total i10 IndexRankings
Ranking Based On Selection: 25
![Grietjie Verhoef](https://cdn.adscientificindex.com/pictures/89/98416.jpg)
Business History
Insurance History
History of Business in Africa.nting History
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
24
0.545
Achille Mbembe
University of the Witwatersrand
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
285
184
0.646
African politics
history
colonialism
race
enlightenment
Yusef Waghid
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
142
80
0.563
African Philosophy
Philosophy of Education
Global Citizenship
Democratic Citizenship Education
John Parkington
University of Cape Town
Cape Town, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
136
81
0.596
rock art
shell middens
human evolution
South African Prehistory
San hunter gatherers
Gerald West
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
34
0.288
Kanu Ikechukwu Anthony
Tansian University
Umunya, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
116
98
0.845
African Philosophy
African Metaphysics
African Bioethics
African Traditional Religion
African Cultural Studies
Ernst M. Conradie
University of the Western Cape
Bellville, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
47
0.505
Systematic theology
ecotheology
ecumenical theology
Ogbu Kalu
University of Nigeria
Nsukka, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
25
0.352
Goolam Vahed
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
26
0.382
Indian Diaspora
Islam in South Africa
Sports History
Citizenship
Transnationalism
Mohamed Salama
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
56
0.836
Isabel Hofmeyr
University of the Witwatersrand
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
33
0.524
Postcolonial literary studies
print culture
book history
oceanic studies
Indian Ocean studies
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Jeremy Punt
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
10
0.167
Johan Cilliers
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
13
0.241
Philip Higgs
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
21
0.404
Philosophy of Education
Higher Education
Sive Masawe
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
51
41
0.804
Cas Wepener|Casparus J. Wepener, C.J. Wepener, Casparus Wepener
Stellenbosch University
Stellenbosch, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
50
15
0.300
Liturgy
Ritual
Homiletics
Practical Theology
Ernest Van Eck
University of Pretoria
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
11
0.224
New Testament
Parables
Social-scientific criticism
Sexuality in the ancient world
Narrative criticism
Jonathan Okeke Chimakonam
University of Pretoria
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
41
0.854
African Philosophy
Logic
Decoloniality
Racism
Ethics
Peter Delius
University of the Witwatersrand
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
27
0.563
Julius Gathogo
Kenyatta University
Nairobi, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
26
0.553
Oral histories
indigenous studies
theology
education
Madipoane Masenya
University of South Africa
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
17
0.362
Old Testament Wisdom literature
African biblical hermeneutics
Hebrew Bible and gender
Bible in African context
Gert J Steyn
University of Pretoria
Pretoria, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
2
0.043
Septuagint studies
Philo
Hebrews
Luke-Acts
Matthew
Peter Alexander
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
20
0.444
Social and political change
African studies
comparative labour history
Ayodeji Olukoju.
University of Lagos
Lagos, Nigeria
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
10
0.222
Maritime History
Economic History
Social History
Vhumani Magezi
North West University
Potchefstroom, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
31
0.705
Theology
Pastoral care
Spirituality
Development
Religious Health
Grietjie Verhoef
University of Johannesburg
Johannesburg, South Africa
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
24
0.545
Business History
Insurance History
History of Business in Africa.nting History