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" (870,057 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: 2
Leonardo Ristori
SRF low-beta resonators design fabrication
Metrics
H-Index
i10 Index
Citation
141
681
80,825
* Rankings
Ranking Based On Selection: 7
Alexander Zlobin
Superconducting magnets
Applied Superconductivity
Accelerators
Metrics
H-Index
i10 Index
Citation
40
234
9,487
* Rankings
Ranking Based On Selection: 8
Philippe Regis-Guy Piot
accelerator physics
particle accelerator
laser-electron interaction
lasers
X-ray sources
Metrics
H-Index
i10 Index
Citation
37
88
7,528

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
Sam Posen
Particle Accelerators
Superconducting RF Cavities
Nb3Sn
SRF
Metrics
H-Index
i10 Index
Citation
30
65
3,446
* Rankings
Ranking Based On Selection: 12
Sergey Belomestnykh
RF superconductivity
Accelerators
Beam Physics
Metrics
H-Index
i10 Index
Citation
29
108
6,013
* Rankings
Ranking Based On Selection: 14
Genfa Wu
RF Superconductivity
Particle Accelerator
SRF
Niobium
Metrics
H-Index
i10 Index
Citation
16
37
1,034
* Rankings
Ranking Based On Selection: 15
Samantha M Lewis
Axions
RF
Microwave devices
Accelerators
Metrics
H-Index
i10 Index
Citation
15
17
2,294
* Rankings
Ranking Based On Selection: 16
Maria Baldini
high-pressure
manganites
hydrides
nanothreads
superconducting magnets
Metrics
H-Index
i10 Index
Citation
15
19
2,559
* Rankings
Ranking Based On Selection: 17
Thomas Kroc
accelerator technology
medical device sterilization
Metrics
H-Index
i10 Index
Citation
15
24
943
* Rankings
Ranking Based On Selection: 19
Quan Sun
analog circuits
integrated circuits
Metrics
H-Index
i10 Index
Citation
14
23
997
* Rankings
Ranking Based On Selection: 20
JK Santucci
Lasers
LWFA
SCRF
Cryogenics
Accelerators
Metrics
H-Index
i10 Index
Citation
14
21
781
* Rankings
Ranking Based On Selection: 23
Arun Saini
Accelerator Physics
Beam dynamics
Beam Optics Design
SRF cavity design
accelerator and beam commissioning
Metrics
H-Index
i10 Index
Citation
11
13
540
* Rankings
Ranking Based On Selection: 24
Andrei Lunin
Microwave engineering Numerical modeling Accelerator physics ANSYS/COMSOL/CST High-power RF testing
Metrics
H-Index
i10 Index
Citation
11
14
592
* Rankings
Ranking Based On Selection: 25
Sujit Bidhar
Solid mechanics
Finite element methods
composits
Metrics
H-Index
i10 Index
Citation
10
11
262
Daniel Bafia
Superconducting RF
Materials
RF Characterization
Metrics
H-Index
i10 Index
Citation
8
8
238
Syed Asif Raza Shah
Programmable Networks
Software-Defined Networking (SDN)
High-Speed Scientific Networks
Network Function Virtualization (NFV)
Metrics
H-Index
i10 Index
Citation
8
8
231
Anthony Tiradani
Distributed Computing
Kubernetes
Configuration Management
High Performance Computing
High Throughput Computing
Metrics
H-Index
i10 Index
Citation
8
6
22,352
Sajini Ak Wijethunga
Accelerator physics
Photo-gun
Injectors
Electron cloud
Metrics
H-Index
i10 Index
Citation
6
4
103
Rankings
Ranking Based On Selection: 1
Fabio Happacher
Metrics
H-Index
i10 Index
Citation Counts
144
613
71,875
Rankings
Ranking Based On Selection: 2
Leonardo Ristori
Metrics
H-Index
i10 Index
Citation Counts
141
681
80,825
SRF low-beta resonators design fabrication
Rankings
Ranking Based On Selection: 3
Burt Holzman
Metrics
H-Index
i10 Index
Citation Counts
58
99
50,096
Rankings
Ranking Based On Selection: 4
Javier Tiffenberg
Metrics
H-Index
i10 Index
Citation Counts
55
102
16,894
Rankings
Ranking Based On Selection: 6
Roberto Acciarri
Metrics
H-Index
i10 Index
Citation Counts
40
72
7,989
Rankings
Ranking Based On Selection: 7
Alexander Zlobin
Metrics
H-Index
i10 Index
Citation Counts
40
234
9,487
Superconducting magnets
Applied Superconductivity
Accelerators
Rankings
Ranking Based On Selection: 8
Philippe Regis-Guy Piot
Metrics
H-Index
i10 Index
Citation Counts
37
88
7,528
accelerator physics
particle accelerator
laser-electron interaction
lasers
X-ray sources
Rankings
Ranking Based On Selection: 9
Vito Di Benedetto
Metrics
H-Index
i10 Index
Citation Counts
33
49
7,103
Rankings
Ranking Based On Selection: 10
Alexander Valishev
Metrics
H-Index
i10 Index
Citation Counts
32
89
4,613

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
Sam Posen
Metrics
H-Index
i10 Index
Citation Counts
30
65
3,446
Particle Accelerators
Superconducting RF Cavities
Nb3Sn
SRF
Rankings
Ranking Based On Selection: 12
Sergey Belomestnykh
Metrics
H-Index
i10 Index
Citation Counts
29
108
6,013
RF superconductivity
Accelerators
Beam Physics
Rankings
Ranking Based On Selection: 13
Marco Mambelli
Metrics
H-Index
i10 Index
Citation Counts
19
21
35,804
Rankings
Ranking Based On Selection: 14
Genfa Wu
Metrics
H-Index
i10 Index
Citation Counts
16
37
1,034
RF Superconductivity
Particle Accelerator
SRF
Niobium
Rankings
Ranking Based On Selection: 15
Samantha M Lewis
Metrics
H-Index
i10 Index
Citation Counts
15
17
2,294
Axions
RF
Microwave devices
Accelerators
Rankings
Ranking Based On Selection: 16
Maria Baldini
Metrics
H-Index
i10 Index
Citation Counts
15
19
2,559
high-pressure
manganites
hydrides
nanothreads
superconducting magnets
Rankings
Ranking Based On Selection: 17
Thomas Kroc
Metrics
H-Index
i10 Index
Citation Counts
15
24
943
accelerator technology
medical device sterilization
Rankings
Ranking Based On Selection: 18
Jean-Paul Carneiro
Metrics
H-Index
i10 Index
Citation Counts
15
23
2,950
Rankings
Ranking Based On Selection: 19
Quan Sun
Metrics
H-Index
i10 Index
Citation Counts
14
23
997
analog circuits
integrated circuits
Rankings
Ranking Based On Selection: 20
JK Santucci
Metrics
H-Index
i10 Index
Citation Counts
14
21
781
Lasers
LWFA
SCRF
Cryogenics
Accelerators
Rankings
Ranking Based On Selection: 21
Charlie Cooper
Metrics
H-Index
i10 Index
Citation Counts
13
13
548
accelerator
superconducting
SRF
Rankings
Ranking Based On Selection: 22
David Van Zanten
Metrics
H-Index
i10 Index
Citation Counts
12
13
597
Rankings
Ranking Based On Selection: 23
Arun Saini
Metrics
H-Index
i10 Index
Citation Counts
11
13
540
Accelerator Physics
Beam dynamics
Beam Optics Design
SRF cavity design
accelerator and beam commissioning
Rankings
Ranking Based On Selection: 24
Andrei Lunin
Metrics
H-Index
i10 Index
Citation Counts
11
14
592
Microwave engineering Numerical modeling Accelerator physics ANSYS/COMSOL/CST High-power RF testing
Rankings
Ranking Based On Selection: 25
Sujit Bidhar
Metrics
H-Index
i10 Index
Citation Counts
10
11
262
Solid mechanics
Finite element methods
composits
Rankings
Ranking Based On Selection: 26
Jeremiah Holzbauer
Metrics
H-Index
i10 Index
Citation Counts
10
10
341
Rankings
Ranking Based On Selection: 27
Huangyu Xiao
Metrics
H-Index
i10 Index
Citation Counts
9
9
433
Rankings
Ranking Based On Selection: 28
Karie Badgley, Karie Melconian
Metrics
H-Index
i10 Index
Citation Counts
9
8
3,031
Rankings
Ranking Based On Selection: 29
Daniel Bafia
Metrics
H-Index
i10 Index
Citation Counts
8
8
238
Superconducting RF
Materials
RF Characterization
Rankings
Ranking Based On Selection: 30
Syed Asif Raza Shah
Metrics
H-Index
i10 Index
Citation Counts
8
8
231
Programmable Networks
Software-Defined Networking (SDN)
High-Speed Scientific Networks
Network Function Virtualization (NFV)
Rankings
Ranking Based On Selection: 31
Valery Kapin
Metrics
H-Index
i10 Index
Citation Counts
8
8
280
Rankings
Ranking Based On Selection: 32
Anthony Tiradani
Metrics
H-Index
i10 Index
Citation Counts
8
6
22,352
Distributed Computing
Kubernetes
Configuration Management
High Performance Computing
High Throughput Computing
Rankings
Ranking Based On Selection: 33
Crispin Contreras-Martinez
Metrics
H-Index
i10 Index
Citation Counts
7
6
186
Rankings
Ranking Based On Selection: 34
Sajini Ak Wijethunga
Metrics
H-Index
i10 Index
Citation Counts
6
4
103
Accelerator physics
Photo-gun
Injectors
Electron cloud