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 :1
Vladimir Bojinov
Fluorescent dyes
Molecular sensors
Light Harvesting
Molucular Logic Gates
Metrics
H-Index
i10 Index
Citation
47
104
5,359
* Rankings
Ranking Based On Selection :2
Martin Bojinov
Electrochemistry
Corrosion
Nanotechnology
Energy Technology
Metrics
H-Index
i10 Index
Citation
39
104
4,729
* Rankings
Ranking Based On Selection :3
Jordan Hristov
fluidization
heat-balance integral
fractional calculus
Prony's series
nonsingular kernels
Metrics
H-Index
i10 Index
Citation
36
87
4,408
* Rankings
Ranking Based On Selection :5
Vladimir Kozhukharov
Materials science
Glass
Energy Materials
Corrosion behaviour
etc.
Metrics
H-Index
i10 Index
Citation
27
57
3,037
* Rankings
Ranking Based On Selection :7
Todorka Gancheva Vladkova
polymeric biomaterials
surface engineering
polymeric composites and nanocomposites
Metrics
H-Index
i10 Index
Citation
22
31
1,482
* Rankings
Ranking Based On Selection :9
Ivan Dukov
synergistic solvent extraction
lanthanoidsq extractantsq redox reactions
Metrics
H-Index
i10 Index
Citation
21
37
1,124
* Rankings
Ranking Based On Selection :15
Elena Kashchieva
физика
химия
материалознание
Metrics
H-Index
i10 Index
Citation
17
30
875
* Rankings
Ranking Based On Selection :16
Anton Georgiev
Organic chemistry
Molecular switches
Photochromism
DFT calculations
Organic spectroscopy
Metrics
H-Index
i10 Index
Citation
16
28
721
* Rankings
Ranking Based On Selection :17
Angel Dishliev
Differential Equations with Impulses
Stability of Dynamic Processes
Mathematical Models in Population dynamics
Optimization Problems
Metrics
H-Index
i10 Index
Citation
16
24
849
* Rankings
Ranking Based On Selection :23
Petar Todorov
Organic Chemistry
Organic Synthesis
Hemorphins
Amino Acids
Peptides
Metrics
H-Index
i10 Index
Citation
13
26
884
* Rankings
Ranking Based On Selection :24
Dimitar Karaivanov
handling machines dynamic
gear trains investigation
analysis of multistage planetary gear trains
- agricultural machinery.
Metrics
H-Index
i10 Index
Citation
13
19
539
* Rankings
Ranking Based On Selection :26
Svetoslav Nenov
differential equations
dynamical systems
optimization
topology
Metrics
H-Index
i10 Index
Citation
13
16
713
* Rankings
Ranking Based On Selection :28
Georgi Chernev
Chemistry
Materials Science
Biotechnology
Binding materials
Metrics
H-Index
i10 Index
Citation
13
18
433
* Rankings
Ranking Based On Selection :30
Margarita Simeonova
Anionic polymerization
poly(alkyl cyanoacrylates)
nanoparticles
biodegradable drug carriers
colloidal drug delivery systems
Metrics
H-Index
i10 Index
Citation
13
15
442
* Rankings
Ranking Based On Selection :32
Irena Mihailova
metallurgical slags - utilization
biomaterials
bioactivity catalyst
Metrics
H-Index
i10 Index
Citation
12
15
629
* Rankings
Ranking Based On Selection :33
Ivaylo Hinkov
chemical engineering
nanoparticles
carbon nanotubes
graphene
modeling
Metrics
H-Index
i10 Index
Citation
12
12
472
* Rankings
Ranking Based On Selection :39
Dancho Danalev
biotechnology
synthesis and structure-activity relationships of biomolecules based on amino acids
peptides
carbohydrates
glycopeptides
Metrics
H-Index
i10 Index
Citation
9
8
225
* Rankings
Ranking Based On Selection :40
Tina Tasheva
glass science
nonconventional oxide glasses
chemical physics
nonlinear optical materials
Metrics
H-Index
i10 Index
Citation
9
8
217
* Rankings
Ranking Based On Selection :41
Darinka Bojinova
Utilization of solid wastes
usihg of microorganisms for solubilization of the phosphate
Metrics
H-Index
i10 Index
Citation
9
9
1,095
* Rankings
Ranking Based On Selection :42
Atanas Atanassov
Real-Time Systems
Case-Based Reasoning
Parallel and Embedded Systems
Deep Learning
Machine Learning
Metrics
H-Index
i10 Index
Citation
9
8
213
* Rankings
Ranking Based On Selection :46
Kosta Boshnakov
Mathematical modeling
control
optimization
diagnosis
intelligent systems
Metrics
H-Index
i10 Index
Citation
9
6
250
* Rankings
Ranking Based On Selection :48
Emil Mihailov
топлотехника
топлообмен
математично моделиране
диагностика
кристализация
Metrics
H-Index
i10 Index
Citation
8
3
159
* Rankings
Ranking Based On Selection :49
Stanislav S Slavov
Electrical characteristics of bismuth titanate ceramics and glass-ceramics
containing SiO2 and Nd2O3
Al2O3 and SiC composite m
Metrics
H-Index
i10 Index
Citation
8
6
150
* Rankings
Ranking Based On Selection :51
Nikolay Yavorov|Nikolai Yavorov, Nikolay Iavorov
lignocellulosic biomass
bioethanol
enzymatic hydrolysis
wood-based materials
bioproducts
Metrics
H-Index
i10 Index
Citation
7
6
161
* Rankings
Ranking Based On Selection :54
Dimitar P Dontchev
The mechanisms and the mechanics behavior
Damage and failure of construction materials and structures
Metrics
H-Index
i10 Index
Citation
7
6
165
* Rankings
Ranking Based On Selection :55
Dimitar Dontchev
Mechanisms and mechanics of behaviors of materials
damage and fracture of structurale materials and structures
Metrics
H-Index
i10 Index
Citation
7
6
161
* Rankings
Ranking Based On Selection :67
Ventsislav Bakov
organic synthesis
dyes and fluorescent compounds
Metrics
H-Index
i10 Index
Citation
6
4
116
* Rankings
Ranking Based On Selection :69
Dimka Fachikova (Ivanova)
Corrosion
Protection of materials
Conversion coatings
Surface treatments
Electroplating
Metrics
H-Index
i10 Index
Citation
6
5
163
* Rankings
Ranking Based On Selection :74
Iskren Spiridonov
Printing and coating technologies
Color management systems
Standardisation
Metrics
H-Index
i10 Index
Citation
6
3
118
* Rankings
Ranking Based On Selection :75
Rumyana Boeva
printing арт
printing materials
agеing of papers
inks
Metrics
H-Index
i10 Index
Citation
6
3
108
* Rankings
Ranking Based On Selection :76
Y Trifonova
thin films
chalcogenide glasses
optical properties
physico-chemical properties in the system Ge-Te-In
Ge-Se-Ga
Metrics
H-Index
i10 Index
Citation
6
3
110
* Rankings
Ranking Based On Selection :79
Plamen Vasilev
System Integration
MES/MOM systems
Finite Capacity Scheduling
Key Performance Indicators
Product Definition Management
Metrics
H-Index
i10 Index
Citation
5
2
95
* Rankings
Ranking Based On Selection :81
Nina Penkova
Thermodynamics
Computational fluid dynamics and heat transfer
Industrial thermal engineering
Energy efficiency of buildings a
Metrics
H-Index
i10 Index
Citation
5
0
97
* Rankings
Ranking Based On Selection :96
Daniela Lilova
electrochemical technology
electrodeposition
pulse plating
chemical current sources
Metrics
H-Index
i10 Index
Citation
3
0
27
* Rankings
Ranking Based On Selection :97
Rositsa Gavrilova
Material science
heat treatment and plastic deformation
methods of investigation of the metal structure and properties
phase
Metrics
H-Index
i10 Index
Citation
3
0
25
Rankings
Ranking Based On Selection: 1
Vladimir Bojinov
Metrics
H-Index
i10 Index
Citation Counts
47
104
5,359
Fluorescent dyes
Molecular sensors
Light Harvesting
Molucular Logic Gates
Rankings
Ranking Based On Selection: 2
Martin Bojinov
Metrics
H-Index
i10 Index
Citation Counts
39
104
4,729
Electrochemistry
Corrosion
Nanotechnology
Energy Technology
Rankings
Ranking Based On Selection: 3
Jordan Hristov
Metrics
H-Index
i10 Index
Citation Counts
36
87
4,408
fluidization
heat-balance integral
fractional calculus
Prony's series
nonsingular kernels
Rankings
Ranking Based On Selection: 4
Plamen Petkov
Metrics
H-Index
i10 Index
Citation Counts
28
72
3,506
solid state physics
thin films technology
Rankings
Ranking Based On Selection: 5
Vladimir Kozhukharov
Metrics
H-Index
i10 Index
Citation Counts
27
57
3,037
Materials science
Glass
Energy Materials
Corrosion behaviour
etc.
Rankings
Ranking Based On Selection: 7
Todorka Gancheva Vladkova
Metrics
H-Index
i10 Index
Citation Counts
22
31
1,482
polymeric biomaterials
surface engineering
polymeric composites and nanocomposites
Rankings
Ranking Based On Selection: 8
Temenushka konstantinova
Metrics
H-Index
i10 Index
Citation Counts
22
38
1,395
Rankings
Ranking Based On Selection: 9
Ivan Dukov
Metrics
H-Index
i10 Index
Citation Counts
21
37
1,124
synergistic solvent extraction
lanthanoidsq extractantsq redox reactions
Rankings
Ranking Based On Selection: 12
Anelia Mavrova
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,336
Rankings
Ranking Based On Selection: 13
Rayna Bryaskova
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,455
controlled radical polymerization
nanotechnology
Rankings
Ranking Based On Selection: 14
Yoncho Pelovski
Metrics
H-Index
i10 Index
Citation Counts
17
31
1,645
Rankings
Ranking Based On Selection: 15
Elena Kashchieva
Metrics
H-Index
i10 Index
Citation Counts
17
30
875
физика
химия
материалознание
Rankings
Ranking Based On Selection: 16
Anton Georgiev
Metrics
H-Index
i10 Index
Citation Counts
16
28
721
Organic chemistry
Molecular switches
Photochromism
DFT calculations
Organic spectroscopy
Rankings
Ranking Based On Selection: 17
Angel Dishliev
Metrics
H-Index
i10 Index
Citation Counts
16
24
849
Differential Equations with Impulses
Stability of Dynamic Processes
Mathematical Models in Population dynamics
Optimization Problems
Rankings
Ranking Based On Selection: 18
Angelina Popova
Metrics
H-Index
i10 Index
Citation Counts
15
18
4,471
Rankings
Ranking Based On Selection: 19
Svetlozar Nedev
Metrics
H-Index
i10 Index
Citation Counts
15
20
1,436
Rankings
Ranking Based On Selection: 21
Kiril Stanulov
Metrics
H-Index
i10 Index
Citation Counts
14
17
634
Rankings
Ranking Based On Selection: 22
Sanchi Nenkova
Metrics
H-Index
i10 Index
Citation Counts
14
20
753
Rankings
Ranking Based On Selection: 23
Petar Todorov
Metrics
H-Index
i10 Index
Citation Counts
13
26
884
Organic Chemistry
Organic Synthesis
Hemorphins
Amino Acids
Peptides
Rankings
Ranking Based On Selection: 24
Dimitar Karaivanov
Metrics
H-Index
i10 Index
Citation Counts
13
19
539
handling machines dynamic
gear trains investigation
analysis of multistage planetary gear trains
- agricultural machinery.
Rankings
Ranking Based On Selection: 25
Andriana Surleva
Metrics
H-Index
i10 Index
Citation Counts
13
17
518
Rankings
Ranking Based On Selection: 26
Svetoslav Nenov
Metrics
H-Index
i10 Index
Citation Counts
13
16
713
differential equations
dynamical systems
optimization
topology
Rankings
Ranking Based On Selection: 27
G. Peev
Metrics
H-Index
i10 Index
Citation Counts
13
22
955
Rankings
Ranking Based On Selection: 28
Georgi Chernev
Metrics
H-Index
i10 Index
Citation Counts
13
18
433
Chemistry
Materials Science
Biotechnology
Binding materials
Rankings
Ranking Based On Selection: 29
Radostin Nickolov
Metrics
H-Index
i10 Index
Citation Counts
13
19
708
Rankings
Ranking Based On Selection: 30
Margarita Simeonova
Metrics
H-Index
i10 Index
Citation Counts
13
15
442
Anionic polymerization
poly(alkyl cyanoacrylates)
nanoparticles
biodegradable drug carriers
colloidal drug delivery systems
Rankings
Ranking Based On Selection: 31
Dimitar Peshev
Metrics
H-Index
i10 Index
Citation Counts
12
15
826
Chemical Engineering
Biotechnology
Membrane Separation
Rankings
Ranking Based On Selection: 32
Irena Mihailova
Metrics
H-Index
i10 Index
Citation Counts
12
15
629
metallurgical slags - utilization
biomaterials
bioactivity catalyst
Rankings
Ranking Based On Selection: 33
Ivaylo Hinkov
Metrics
H-Index
i10 Index
Citation Counts
12
12
472
chemical engineering
nanoparticles
carbon nanotubes
graphene
modeling
Rankings
Ranking Based On Selection: 34
Evgeni Simeonov
Metrics
H-Index
i10 Index
Citation Counts
11
13
475
Rankings
Ranking Based On Selection: 35
Daniela Tsekova
Metrics
H-Index
i10 Index
Citation Counts
11
12
506
Rankings
Ranking Based On Selection: 36
Ludmil Fachikov
Metrics
H-Index
i10 Index
Citation Counts
11
11
460
Corrosion
Protection of materials
Surface treatments
Rankings
Ranking Based On Selection: 37
Stela Georgieva
Metrics
H-Index
i10 Index
Citation Counts
10
14
332
analytical chemistry
electrochemistry
voltammetry
Rankings
Ranking Based On Selection: 38
Chavdar Chilev
Metrics
H-Index
i10 Index
Citation Counts
10
10
321
Rankings
Ranking Based On Selection: 39
Dancho Danalev
Metrics
H-Index
i10 Index
Citation Counts
9
8
225
biotechnology
synthesis and structure-activity relationships of biomolecules based on amino acids
peptides
carbohydrates
glycopeptides
Rankings
Ranking Based On Selection: 40
Tina Tasheva
Metrics
H-Index
i10 Index
Citation Counts
9
8
217
glass science
nonconventional oxide glasses
chemical physics
nonlinear optical materials
Rankings
Ranking Based On Selection: 41
Darinka Bojinova
Metrics
H-Index
i10 Index
Citation Counts
9
9
1,095
Utilization of solid wastes
usihg of microorganisms for solubilization of the phosphate
Rankings
Ranking Based On Selection: 42
Atanas Atanassov
Metrics
H-Index
i10 Index
Citation Counts
9
8
213
Real-Time Systems
Case-Based Reasoning
Parallel and Embedded Systems
Deep Learning
Machine Learning
Rankings
Ranking Based On Selection: 44
Idilia Batchkova
Metrics
H-Index
i10 Index
Citation Counts
9
8
224
Rankings
Ranking Based On Selection: 45
Albena Yoleva
Metrics
H-Index
i10 Index
Citation Counts
9
9
266
silicates
ceramics
composites
Rankings
Ranking Based On Selection: 46
Kosta Boshnakov
Metrics
H-Index
i10 Index
Citation Counts
9
6
250
Mathematical modeling
control
optimization
diagnosis
intelligent systems
Rankings
Ranking Based On Selection: 48
Emil Mihailov
Metrics
H-Index
i10 Index
Citation Counts
8
3
159
топлотехника
топлообмен
математично моделиране
диагностика
кристализация
Rankings
Ranking Based On Selection: 49
Stanislav S Slavov
Metrics
H-Index
i10 Index
Citation Counts
8
6
150
Electrical characteristics of bismuth titanate ceramics and glass-ceramics
containing SiO2 and Nd2O3
Al2O3 and SiC composite m
Rankings
Ranking Based On Selection: 50
Vesislava Toteva
Metrics
H-Index
i10 Index
Citation Counts
7
6
179
Rankings
Ranking Based On Selection: 51
lignocellulosic biomass
bioethanol
enzymatic hydrolysis
wood-based materials
bioproducts
Rankings
Ranking Based On Selection: 52
Kameliya Anichina
Metrics
H-Index
i10 Index
Citation Counts
7
5
335
Organic Synthesis
Medicinal Chemistry
Rankings
Ranking Based On Selection: 54
Dimitar P Dontchev
Metrics
H-Index
i10 Index
Citation Counts
7
6
165
The mechanisms and the mechanics behavior
Damage and failure of construction materials and structures
Rankings
Ranking Based On Selection: 55
Dimitar Dontchev
Metrics
H-Index
i10 Index
Citation Counts
7
6
161
Mechanisms and mechanics of behaviors of materials
damage and fracture of structurale materials and structures
Rankings
Ranking Based On Selection: 56
Svetlomir Diankov
Metrics
H-Index
i10 Index
Citation Counts
7
5
172
plant extraction
impregnation
nanoparticles synthesis
Rankings
Ranking Based On Selection: 57
Spaska Yaneva
Metrics
H-Index
i10 Index
Citation Counts
7
4
162
Rankings
Ranking Based On Selection: 58
Dimitar Pilev
Metrics
H-Index
i10 Index
Citation Counts
7
3
102
Rankings
Ranking Based On Selection: 59
Polya Miladinova
Metrics
H-Index
i10 Index
Citation Counts
7
6
154
Rankings
Ranking Based On Selection: 60
Daniela Angelova
Metrics
H-Index
i10 Index
Citation Counts
7
4
468
Chemistry
Chemical Engineering
Environmental Science
Rankings
Ranking Based On Selection: 61
Ljubov Yotova
Metrics
H-Index
i10 Index
Citation Counts
7
7
285
Rankings
Ranking Based On Selection: 62
population dynamics
statistics
optimization
education
Rankings
Ranking Based On Selection: 63
Nikolay Kozarev
Metrics
H-Index
i10 Index
Citation Counts
7
2
80
Environmental engineering
air quality monitoring and control
Rankings
Ranking Based On Selection: 64
Stanislava Vladimirova
Metrics
H-Index
i10 Index
Citation Counts
6
4
206
Organic synthesis
Pharmacology
Organic Chemistry
Rankings
Ranking Based On Selection: 66
Ani Stoilova
Metrics
H-Index
i10 Index
Citation Counts
6
4
144
Rankings
Ranking Based On Selection: 67
Ventsislav Bakov
Metrics
H-Index
i10 Index
Citation Counts
6
4
116
organic synthesis
dyes and fluorescent compounds
Rankings
Ranking Based On Selection: 68
Dimitrina Todorova
Metrics
H-Index
i10 Index
Citation Counts
6
2
121
Rankings
Ranking Based On Selection: 69
Corrosion
Protection of materials
Conversion coatings
Surface treatments
Electroplating
Rankings
Ranking Based On Selection: 70
Nadezhda Stoilova
Metrics
H-Index
i10 Index
Citation Counts
6
5
94
VMP
residues
laboratory
LCMSMS
Rankings
Ranking Based On Selection: 71
Silviya Lavrova
Metrics
H-Index
i10 Index
Citation Counts
6
4
223
Rankings
Ranking Based On Selection: 74
Iskren Spiridonov
Metrics
H-Index
i10 Index
Citation Counts
6
3
118
Printing and coating technologies
Color management systems
Standardisation
Rankings
Ranking Based On Selection: 75
Rumyana Boeva
Metrics
H-Index
i10 Index
Citation Counts
6
3
108
printing арт
printing materials
agеing of papers
inks
Rankings
Ranking Based On Selection: 76
Y Trifonova
Metrics
H-Index
i10 Index
Citation Counts
6
3
110
thin films
chalcogenide glasses
optical properties
physico-chemical properties in the system Ge-Te-In
Ge-Se-Ga
Rankings
Ranking Based On Selection: 77
Valentin Slavov
Metrics
H-Index
i10 Index
Citation Counts
6
2
88
машинно инженерство
Rankings
Ranking Based On Selection: 78
Vanya Lilova
Metrics
H-Index
i10 Index
Citation Counts
5
3
112
Rankings
Ranking Based On Selection: 79
Plamen Vasilev
Metrics
H-Index
i10 Index
Citation Counts
5
2
95
System Integration
MES/MOM systems
Finite Capacity Scheduling
Key Performance Indicators
Product Definition Management
Rankings
Ranking Based On Selection: 81
Nina Penkova
Metrics
H-Index
i10 Index
Citation Counts
5
0
97
Thermodynamics
Computational fluid dynamics and heat transfer
Industrial thermal engineering
Energy efficiency of buildings a
Rankings
Ranking Based On Selection: 84
Petar Velev
Metrics
H-Index
i10 Index
Citation Counts
5
2
90
Rankings
Ranking Based On Selection: 86
Kliment Hadjov
Metrics
H-Index
i10 Index
Citation Counts
5
3
123
Cycling of rubbers
Material science
Dynamic Analysis
Composites
Rankings
Ranking Based On Selection: 87
Tsvetelin Tsvetkov
Metrics
H-Index
i10 Index
Citation Counts
4
2
85
Rankings
Ranking Based On Selection: 88
Differential equations
Impulsive Effects
Integral Point Sets
Rankings
Ranking Based On Selection: 89
Veselin Iliev
Metrics
H-Index
i10 Index
Citation Counts
4
0
48
Rankings
Ranking Based On Selection: 91
Rossitza Paunova
Metrics
H-Index
i10 Index
Citation Counts
3
1
60
Thermodynamics
Kinetics
utilization of waste products from Metallurgy
Rankings
Ranking Based On Selection: 92
Vladislava Ivanova
Metrics
H-Index
i10 Index
Citation Counts
3
1
38
Rankings
Ranking Based On Selection: 96
Daniela Lilova
Metrics
H-Index
i10 Index
Citation Counts
3
0
27
electrochemical technology
electrodeposition
pulse plating
chemical current sources
Rankings
Ranking Based On Selection: 97
Rositsa Gavrilova
Metrics
H-Index
i10 Index
Citation Counts
3
0
25
Material science
heat treatment and plastic deformation
methods of investigation of the metal structure and properties
phase
Rankings
Ranking Based On Selection: 98
Vasil Metodiev,
Metrics
H-Index
i10 Index
Citation Counts
3
0
24
computer networks
distributed systems
environmental monitoring
Rankings
Ranking Based On Selection: 99
Boris Martinov
Metrics
H-Index
i10 Index
Citation Counts
3
0
23
Rankings
Ranking Based On Selection: 100
Janna Mateeva
Metrics
H-Index
i10 Index
Citation Counts
3
0
21
Ceramics
Nanomaterials
Superconductors