Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
James L Perry
public administration
public management
public service motivation
public human resource management
altruism
Metrics
H-Index
i10 Index
Citation
77
182
45,267
David Konisky
environmental policy
environmental justice
energy justice
regulation
public opinion
Metrics
H-Index
i10 Index
Citation
43
85
8,479
Sean Nicholson Crotty
Federalism
Intergovernmental Relations
Policy Diffusion
Public Management
Implementation
Metrics
H-Index
i10 Index
Citation
43
62
6,100
Roger Parks
Police Organization
Police Performance
Metropolitan Governance
Metrics
H-Index
i10 Index
Citation
38
58
8,066
Beth Gazley
nonprofit management
collaboration
governance
coproduction
climate change & civil society
Metrics
H-Index
i10 Index
Citation
33
52
5,385
Diane S Henshel
toxicology
human health and ecological risk assessment
risk communication
cybersecurity risk assessment
climate resilience
Metrics
H-Index
i10 Index
Citation
32
50
3,690
* Rankings
Ranking Based On Selection: 10
James Farmer
Sustainability
Food Systems
Human Dimensions of Natural Resources
Rural Studies
Food Justice
Metrics
H-Index
i10 Index
Citation
25
41
2,074

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* Rankings
Ranking Based On Selection: 11
Jill Nicholson Crotty
Public Management
Nonprofit Management
Equity and Representation
Police Reform
Advocacy and Lobbying
Metrics
H-Index
i10 Index
Citation
24
30
3,299
* Rankings
Ranking Based On Selection: 12
Anh Tran
Political economy
development economics
authoritarianism
Metrics
H-Index
i10 Index
Citation
24
42
2,642
* Rankings
Ranking Based On Selection: 15
Claudia N Avellaneda
Local Governments
Government Performance
Mayors
Subnational Governance
Municipalities
Metrics
H-Index
i10 Index
Citation
22
31
3,973
Matthew Baggetta
civil society
civic engagement
social capital
social movements
political participation
Metrics
H-Index
i10 Index
Citation
9
9
638
David G Ehrlich
public policy
public administration
policy design
environmental policy
Metrics
H-Index
i10 Index
Citation
2
2
40
Rankings
Ranking Based On Selection: 1
James L Perry
Metrics
H-Index
i10 Index
Citation Counts
77
182
45,267
public administration
public management
public service motivation
public human resource management
altruism
Rankings
Ranking Based On Selection: 2
John D Graham
Metrics
H-Index
i10 Index
Citation Counts
56
195
14,161
Rankings
Ranking Based On Selection: 3
David Konisky
Metrics
H-Index
i10 Index
Citation Counts
43
85
8,479
environmental policy
environmental justice
energy justice
regulation
public opinion
Rankings
Ranking Based On Selection: 4
Sean Nicholson Crotty
Metrics
H-Index
i10 Index
Citation Counts
43
62
6,100
Federalism
Intergovernmental Relations
Policy Diffusion
Public Management
Implementation
Rankings
Ranking Based On Selection: 5
Roger Parks
Metrics
H-Index
i10 Index
Citation Counts
38
58
8,066
Police Organization
Police Performance
Metropolitan Governance
Rankings
Ranking Based On Selection: 6
Beth Gazley
Metrics
H-Index
i10 Index
Citation Counts
33
52
5,385
nonprofit management
collaboration
governance
coproduction
climate change & civil society
Rankings
Ranking Based On Selection: 7
Diane S Henshel
Metrics
H-Index
i10 Index
Citation Counts
32
50
3,690
toxicology
human health and ecological risk assessment
risk communication
cybersecurity risk assessment
climate resilience
Rankings
Ranking Based On Selection: 8
Coady Wing
Metrics
H-Index
i10 Index
Citation Counts
28
47
5,745
Rankings
Ranking Based On Selection: 9
Bradley Heim
Metrics
H-Index
i10 Index
Citation Counts
26
46
3,015
Rankings
Ranking Based On Selection: 10
James Farmer
Metrics
H-Index
i10 Index
Citation Counts
25
41
2,074
Sustainability
Food Systems
Human Dimensions of Natural Resources
Rural Studies
Food Justice

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Jill Nicholson Crotty
Metrics
H-Index
i10 Index
Citation Counts
24
30
3,299
Public Management
Nonprofit Management
Equity and Representation
Police Reform
Advocacy and Lobbying
Rankings
Ranking Based On Selection: 12
Anh Tran
Metrics
H-Index
i10 Index
Citation Counts
24
42
2,642
Political economy
development economics
authoritarianism
Rankings
Ranking Based On Selection: 13
Kenneth Richards
Metrics
H-Index
i10 Index
Citation Counts
24
35
3,445
Business Sustainability
Environmental Economics and Law
Rankings
Ranking Based On Selection: 14
Aaron Deslatte
Metrics
H-Index
i10 Index
Citation Counts
23
32
1,396
Rankings
Ranking Based On Selection: 15
Claudia N Avellaneda
Metrics
H-Index
i10 Index
Citation Counts
22
31
3,973
Local Governments
Government Performance
Mayors
Subnational Governance
Municipalities
Rankings
Ranking Based On Selection: 16
Amanda Rutherford
Metrics
H-Index
i10 Index
Citation Counts
20
26
1,386
Rankings
Ranking Based On Selection: 17
Jennifer N Brass
Metrics
H-Index
i10 Index
Citation Counts
20
24
2,148
NGOs
governance
Africa
electricity
service provision
Rankings
Ranking Based On Selection: 18
Michael Rushton
Metrics
H-Index
i10 Index
Citation Counts
19
26
1,024
Rankings
Ranking Based On Selection: 19
Seth Freedman
Metrics
H-Index
i10 Index
Citation Counts
18
19
2,055
Rankings
Ranking Based On Selection: 20
Alex Hollingsworth
Metrics
H-Index
i10 Index
Citation Counts
16
18
1,183
Rankings
Ranking Based On Selection: 21
Martin Shannon E
Metrics
H-Index
i10 Index
Citation Counts
14
16
1,021
Rankings
Ranking Based On Selection: 22
Matthew Baggetta
Metrics
H-Index
i10 Index
Citation Counts
9
9
638
civil society
civic engagement
social capital
social movements
political participation
Rankings
Ranking Based On Selection: 23
David G Ehrlich
Metrics
H-Index
i10 Index
Citation Counts
2
2
40
public policy
public administration
policy design
environmental policy
Rankings
Ranking Based On Selection: 24
Owen Witesman
Metrics
H-Index
i10 Index
Citation Counts
1
0
4
Public Management
Public Policy Analysis
Public Values
Rankings
Ranking Based On Selection: 25
David Ehrlich
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
public policy
environmental policy
public managment