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
Milen I. Georgiev
Molecular Biotechnology
Metabolomics
Natural Products
Molecular Pharmacology
Metrics
H-Index
i10 Index
Citation
51
134
12,573
* Rankings
Ranking Based On Selection: 5
Maria Angelova
Mycology
Oxidative stress: biomarkers
cell responce
antioxidant defence
Metrics
H-Index
i10 Index
Citation
24
43
1,992
* Rankings
Ranking Based On Selection: 6
Vesselin Kussovski
infectious microbiology
photodynamic therapy
antimicrobials
Metrics
H-Index
i10 Index
Citation
23
53
2,240
* Rankings
Ranking Based On Selection: 7
andrey marchev
biotechnologies
plant in vitro cultures
bioprocess engineering
triterpenes
HPLC analysis
Metrics
H-Index
i10 Index
Citation
21
36
1,768
* Rankings
Ranking Based On Selection: 9
Ivan S. Simeonov
water research
bioautomation
biotechnology
mathematical modelling
automatic control
Metrics
H-Index
i10 Index
Citation
18
35
1,294

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: 15
Ivanka Nikolova
Virology
Microbiology
Genetics
Antiviral chemotherapy
Metrics
H-Index
i10 Index
Citation
12
15
509
* Rankings
Ranking Based On Selection: 18
Yana Ilieva
microbiology
cytotoxicity
ecology
conservation
Metrics
H-Index
i10 Index
Citation
10
10
380
* Rankings
Ranking Based On Selection: 20
Lora Simeonova
Virology
Immunology
Host-Pathogen Interactions
Metrics
H-Index
i10 Index
Citation
8
7
214
* Rankings
Ranking Based On Selection: 21
Iliyan Manoylov
Immunology
Animal models
Virology
Diabetes research
Metrics
H-Index
i10 Index
Citation
6
3
150
Rankings
Ranking Based On Selection: 1
Milen I. Georgiev
Metrics
H-Index
i10 Index
Citation Counts
51
134
12,573
Molecular Biotechnology
Metabolomics
Natural Products
Molecular Pharmacology
Rankings
Ranking Based On Selection: 2
Najdenski Hristo
Metrics
H-Index
i10 Index
Citation Counts
35
77
4,283
infectious microbiology
Rankings
Ranking Based On Selection: 5
Maria Angelova
Metrics
H-Index
i10 Index
Citation Counts
24
43
1,992
Mycology
Oxidative stress: biomarkers
cell responce
antioxidant defence
Rankings
Ranking Based On Selection: 6
Vesselin Kussovski
Metrics
H-Index
i10 Index
Citation Counts
23
53
2,240
infectious microbiology
photodynamic therapy
antimicrobials
Rankings
Ranking Based On Selection: 7
andrey marchev
Metrics
H-Index
i10 Index
Citation Counts
21
36
1,768
biotechnologies
plant in vitro cultures
bioprocess engineering
triterpenes
HPLC analysis
Rankings
Ranking Based On Selection: 9
Ivan S. Simeonov
Metrics
H-Index
i10 Index
Citation Counts
18
35
1,294
water research
bioautomation
biotechnology
mathematical modelling
automatic control

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: 12
Nikolina Mihaylova
Metrics
H-Index
i10 Index
Citation Counts
14
17
659
Rankings
Ranking Based On Selection: 14
Margarita Stoilova-Disheva
Metrics
H-Index
i10 Index
Citation Counts
13
14
1,023
Rankings
Ranking Based On Selection: 15
Ivanka Nikolova
Metrics
H-Index
i10 Index
Citation Counts
12
15
509
Virology
Microbiology
Genetics
Antiviral chemotherapy
Rankings
Ranking Based On Selection: 16
Lyudmila Dimitrova
Metrics
H-Index
i10 Index
Citation Counts
11
12
518
Rankings
Ranking Based On Selection: 17
P Grozdanov
Metrics
H-Index
i10 Index
Citation Counts
10
11
256
Human papillomavirus
Virology
Molecular Biology
Human Genetics
Rankings
Ranking Based On Selection: 18
Yana Ilieva
Metrics
H-Index
i10 Index
Citation Counts
10
10
380
microbiology
cytotoxicity
ecology
conservation
Rankings
Ranking Based On Selection: 19
Mila D Kaleva
Metrics
H-Index
i10 Index
Citation Counts
9
7
198
Microbiology
Vetrinary medicine
Veterinary pathology etc.
Rankings
Ranking Based On Selection: 20
Lora Simeonova
Metrics
H-Index
i10 Index
Citation Counts
8
7
214
Virology
Immunology
Host-Pathogen Interactions
Rankings
Ranking Based On Selection: 21
Iliyan Manoylov
Metrics
H-Index
i10 Index
Citation Counts
6
3
150
Immunology
Animal models
Virology
Diabetes research
Rankings
Ranking Based On Selection: 22
Milena Leseva
Metrics
H-Index
i10 Index
Citation Counts
5
3
123