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" (873,864 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 :4
Oleg M. Smirnov
radio interferomerty calibration & imaging
Metrics
H-Index
i10 Index
Citation
51
137
15,851
* Rankings
Ranking Based On Selection :6
Michiel A. Brentjens
Radio interferometry
Polarimetry
Galactic ISM
Cosmology
Metrics
H-Index
i10 Index
Citation
39
52
9,084
* Rankings
Ranking Based On Selection :7
Stefan Wijnholds
radio astronomy
array calibration
calibratability
imaging
radio telescopes
Metrics
H-Index
i10 Index
Citation
38
92
9,059
* Rankings
Ranking Based On Selection :8
Andre Gunst
signal processing
A/D converters
radio astronomy instruments
system design
Metrics
H-Index
i10 Index
Citation
38
62
7,565
* Rankings
Ranking Based On Selection :11
Joseph Callingham
Radio astronomy
Extragalactic astronomy
Stellar systems
High Energy Astrophysics
Metrics
H-Index
i10 Index
Citation
35
82
4,779
* Rankings
Ranking Based On Selection :12
DHP Maat
Photonics
Microwave-Photonics
Photonic Signal Processing
Photonic Instrumentation
Fiber Optics
Metrics
H-Index
i10 Index
Citation
35
57
6,976
* Rankings
Ranking Based On Selection :14
Richard Fallows
Solar wind and interplanetary scintillation
ionosphere and ionospheric scintillation
Metrics
H-Index
i10 Index
Citation
31
57
6,110
* Rankings
Ranking Based On Selection :19
Arnold Van Ardenne
Radio Science
Radio Astronomy and Instrumentation
Metrics
H-Index
i10 Index
Citation
19
26
4,113
* Rankings
Ranking Based On Selection :22
Marcel Loose
software engineering
high performance computing
radio astronomy
digital signal processing
physics
Metrics
H-Index
i10 Index
Citation
13
16
873
* Rankings
Ranking Based On Selection :23
Chris Broekema
High performance computing
streaming processing
software defined networking
exascale
Metrics
H-Index
i10 Index
Citation
12
13
3,678
Roel Witvers
RF IC Low Noise MMIC SKA radio astronomy
Metrics
H-Index
i10 Index
Citation
8
6
178
Steven Van Der Vlugt
computer engineering
hardware software co-design
hardware acceleration
real-time systems
high level synthesis
Metrics
H-Index
i10 Index
Citation
6
1
46
Irene Bonati
Geophysics
Planetary Science
Radio Astronomy
Computational Science
Metrics
H-Index
i10 Index
Citation
4
2
69
Rankings
Ranking Based On Selection: 2
Carole Jackson
Metrics
H-Index
i10 Index
Citation Counts
70
113
35,466
Rankings
Ranking Based On Selection: 4
Oleg M. Smirnov
Metrics
H-Index
i10 Index
Citation Counts
51
137
15,851
radio interferomerty calibration & imaging
Rankings
Ranking Based On Selection: 5
Anne M. Archibald
Metrics
H-Index
i10 Index
Citation Counts
49
69
45,198
Rankings
Ranking Based On Selection: 6
Michiel A. Brentjens
Metrics
H-Index
i10 Index
Citation Counts
39
52
9,084
Radio interferometry
Polarimetry
Galactic ISM
Cosmology
Rankings
Ranking Based On Selection: 7
Stefan Wijnholds
Metrics
H-Index
i10 Index
Citation Counts
38
92
9,059
radio astronomy
array calibration
calibratability
imaging
radio telescopes
Rankings
Ranking Based On Selection: 8
Andre Gunst
Metrics
H-Index
i10 Index
Citation Counts
38
62
7,565
signal processing
A/D converters
radio astronomy instruments
system design
Rankings
Ranking Based On Selection: 9
Ronald Roelfsema
Metrics
H-Index
i10 Index
Citation Counts
37
58
7,703
Astronomical instrumentation
high contrast imaging
polarimetry
Rankings
Ranking Based On Selection: 10
Leith Godfrey
Metrics
H-Index
i10 Index
Citation Counts
36
59
5,601
Rankings
Ranking Based On Selection: 11
Joseph Callingham
Metrics
H-Index
i10 Index
Citation Counts
35
82
4,779
Radio astronomy
Extragalactic astronomy
Stellar systems
High Energy Astrophysics
Rankings
Ranking Based On Selection: 12
DHP Maat
Metrics
H-Index
i10 Index
Citation Counts
35
57
6,976
Photonics
Microwave-Photonics
Photonic Signal Processing
Photonic Instrumentation
Fiber Optics
Rankings
Ranking Based On Selection: 13
Natasha Maddox
Metrics
H-Index
i10 Index
Citation Counts
31
50
4,357
Rankings
Ranking Based On Selection: 14
Richard Fallows
Metrics
H-Index
i10 Index
Citation Counts
31
57
6,110
Solar wind and interplanetary scintillation
ionosphere and ionospheric scintillation
Rankings
Ranking Based On Selection: 15
AJ Boonstra
Metrics
H-Index
i10 Index
Citation Counts
26
51
5,844
Rankings
Ranking Based On Selection: 16
Pietro Zucca
Metrics
H-Index
i10 Index
Citation Counts
25
38
1,797
Solar Physics
Space Weather
Astrophysics
Rankings
Ranking Based On Selection: 17
Yogesh Maan
Metrics
H-Index
i10 Index
Citation Counts
23
43
2,336
Rankings
Ranking Based On Selection: 18
Helga Dénes
Metrics
H-Index
i10 Index
Citation Counts
22
39
1,457
Rankings
Ranking Based On Selection: 19
Arnold Van Ardenne
Metrics
H-Index
i10 Index
Citation Counts
19
26
4,113
Radio Science
Radio Astronomy and Instrumentation
Rankings
Ranking Based On Selection: 20
Mark Ruiter
Metrics
H-Index
i10 Index
Citation Counts
17
23
3,843
Rankings
Ranking Based On Selection: 21
Michel Arts
Metrics
H-Index
i10 Index
Citation Counts
16
26
3,839
Rankings
Ranking Based On Selection: 22
Marcel Loose
Metrics
H-Index
i10 Index
Citation Counts
13
16
873
software engineering
high performance computing
radio astronomy
digital signal processing
physics
Rankings
Ranking Based On Selection: 23
Chris Broekema
Metrics
H-Index
i10 Index
Citation Counts
12
13
3,678
High performance computing
streaming processing
software defined networking
exascale
Rankings
Ranking Based On Selection: 24
David Gardenier
Metrics
H-Index
i10 Index
Citation Counts
10
10
423
Rankings
Ranking Based On Selection: 25
Pikky Atri
Metrics
H-Index
i10 Index
Citation Counts
9
9
458
X-ray binaries
black holes
VLBI
Rankings
Ranking Based On Selection: 26
Roel Witvers
Metrics
H-Index
i10 Index
Citation Counts
8
6
178
RF IC Low Noise MMIC SKA radio astronomy
Rankings
Ranking Based On Selection: 27
David Prinsloo
Metrics
H-Index
i10 Index
Citation Counts
7
5
132
Low-noise Amplifiers
Active Antennas
Antenna Arrays
Multi-port Noise Theory
Rankings
Ranking Based On Selection: 28
computer engineering
hardware software co-design
hardware acceleration
real-time systems
high level synthesis
Rankings
Ranking Based On Selection: 29
Mattia Mancini
Metrics
H-Index
i10 Index
Citation Counts
6
5
306
Rankings
Ranking Based On Selection: 31
Irene Bonati
Metrics
H-Index
i10 Index
Citation Counts
4
2
69
Geophysics
Planetary Science
Radio Astronomy
Computational Science