Top 2% scientists by field and subfield (2026)
In short: the Top 2% list places every scientist in one of 20 fields and 174 subfields, and the top 2% is counted inside each subfield. Clinical Medicine has the most scientists in the 2026 list; below is every subfield with its count worldwide and from India.
Use this to see how crowded your subfield is at the top, and how many Indian researchers already made it there. The top 2% is a share, so a larger subfield has more places but also more people competing for them.
Jump to: Clinical Medicine · Enabling & Strategic Technologies · Physics & Astronomy · Engineering · Biomedical Research · Information & Communication Technologies · Chemistry · Biology · Agriculture, Fisheries & Forestry · Earth & Environmental Sciences · Social Sciences · Public Health & Health Services · Economics & Business · Psychology & Cognitive Sciences · Mathematics & Statistics · Built Environment & Design · Communication & Textual Studies · Historical Studies · Philosophy & Theology · Visual & Performing Arts
Clinical Medicine
33 subfields · 70,428 scientists worldwide · 624 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Neurology & Neurosurgery | 7,826 | 27 |
| Oncology & Carcinogenesis | 7,751 | 42 |
| General & Internal Medicine | 7,413 | 168 |
| Cardiovascular System & Hematology | 5,100 | 11 |
| Immunology | 3,613 | 6 |
| Pharmacology & Pharmacy | 3,462 | 119 |
| Surgery | 3,025 | 21 |
| Nuclear Medicine & Medical Imaging | 2,682 | 10 |
| Gastroenterology & Hepatology | 2,313 | 27 |
| Obstetrics & Reproductive Medicine | 2,176 | 12 |
| Dentistry | 2,104 | 9 |
| Endocrinology & Metabolism | 2,070 | 9 |
| Orthopedics | 2,026 | 12 |
| Urology & Nephrology | 1,972 | 9 |
| Psychiatry | 1,870 | 9 |
| Ophthalmology & Optometry | 1,783 | 33 |
| Pediatrics | 1,671 | 30 |
| Respiratory System | 1,477 | 10 |
| Dermatology & Venereal Diseases | 1,331 | 12 |
| Anesthesiology | 1,218 | 4 |
| Otorhinolaryngology | 1,128 | 0 |
| Arthritis & Rheumatology | 943 | 2 |
| Emergency & Critical Care Medicine | 909 | 3 |
| Sport Sciences | 852 | 1 |
| Tropical Medicine | 823 | 18 |
| Pathology | 535 | 2 |
| General Clinical Medicine | 499 | 1 |
| Allergy | 409 | 0 |
| Legal & Forensic Medicine | 328 | 9 |
| Environmental & Occupational Health | 320 | 1 |
| Complementary & Alternative Medicine | 297 | 6 |
| Geriatrics | 293 | 1 |
| Epidemiology | 209 | 0 |
Enabling & Strategic Technologies
7 subfields · 24,110 scientists worldwide · 925 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Energy | 7,825 | 295 |
| Materials | 6,943 | 375 |
| Nanoscience & Nanotechnology | 3,678 | 66 |
| Optoelectronics & Photonics | 3,023 | 56 |
| Biotechnology | 1,466 | 115 |
| Strategic, Defence & Security Studies | 672 | 12 |
| Bioinformatics | 503 | 6 |
Physics & Astronomy
9 subfields · 20,432 scientists worldwide · 355 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Applied Physics | 6,852 | 162 |
| Nuclear & Particle Physics | 3,519 | 74 |
| Chemical Physics | 2,575 | 44 |
| General Physics | 1,865 | 21 |
| Optics | 1,767 | 19 |
| Astronomy & Astrophysics | 1,649 | 6 |
| Fluids & Plasmas | 1,240 | 23 |
| Acoustics | 820 | 5 |
| Mathematical Physics | 145 | 1 |
Engineering
12 subfields · 20,033 scientists worldwide · 540 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Mechanical Engineering & Transports | 3,359 | 166 |
| Electrical & Electronic Engineering | 2,806 | 81 |
| Industrial Engineering & Automation | 2,750 | 35 |
| Chemical Engineering | 2,054 | 84 |
| Geological & Geomatics Engineering | 1,724 | 40 |
| Biomedical Engineering | 1,554 | 14 |
| Environmental Engineering | 1,439 | 26 |
| Civil Engineering | 1,427 | 24 |
| Aerospace & Aeronautics | 1,416 | 11 |
| Mining & Metallurgy | 790 | 48 |
| Operations Research | 667 | 11 |
| Automobile Design & Engineering | 47 | 0 |
Biomedical Research
12 subfields · 19,755 scientists worldwide · 139 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Microbiology | 4,788 | 48 |
| Biochemistry & Molecular Biology | 4,497 | 15 |
| Developmental Biology | 3,426 | 4 |
| Virology | 1,636 | 7 |
| Toxicology | 1,438 | 31 |
| Nutrition & Dietetics | 1,219 | 9 |
| Genetics & Heredity | 872 | 4 |
| Mycology & Parasitology | 622 | 5 |
| Physiology | 552 | 2 |
| Biophysics | 443 | 8 |
| Anatomy & Morphology | 175 | 6 |
| Microscopy | 87 | 0 |
Information & Communication Technologies
8 subfields · 18,220 scientists worldwide · 463 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Artificial Intelligence & Image Processing | 10,979 | 346 |
| Networking & Telecommunications | 4,818 | 99 |
| Software Engineering | 497 | 2 |
| Medical Informatics | 463 | 1 |
| Computer Hardware & Architecture | 436 | 7 |
| Computation Theory & Mathematics | 434 | 3 |
| Information Systems | 400 | 3 |
| Distributed Computing | 193 | 2 |
Chemistry
7 subfields · 16,153 scientists worldwide · 495 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Organic Chemistry | 3,963 | 107 |
| Analytical Chemistry | 2,878 | 40 |
| Polymers | 2,797 | 115 |
| Medicinal & Biomolecular Chemistry | 2,531 | 116 |
| Inorganic & Nuclear Chemistry | 1,866 | 75 |
| General Chemistry | 1,209 | 16 |
| Physical Chemistry | 909 | 26 |
Biology
7 subfields · 9,343 scientists worldwide · 172 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Plant Biology & Botany | 4,226 | 151 |
| Ecology | 1,770 | 8 |
| Marine Biology & Hydrobiology | 1,146 | 3 |
| Entomology | 860 | 7 |
| Evolutionary Biology | 809 | 0 |
| Zoology | 425 | 3 |
| Ornithology | 107 | 0 |
Agriculture, Fisheries & Forestry
7 subfields · 9,249 scientists worldwide · 150 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Food Science | 2,235 | 74 |
| Agronomy & Agriculture | 1,978 | 43 |
| Dairy & Animal Science | 1,635 | 16 |
| Veterinary Sciences | 1,507 | 0 |
| Fisheries | 1,002 | 11 |
| Forestry | 770 | 5 |
| Horticulture | 122 | 1 |
Earth & Environmental Sciences
6 subfields · 8,210 scientists worldwide · 140 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Environmental Sciences | 2,938 | 107 |
| Geochemistry & Geophysics | 2,265 | 10 |
| Meteorology & Atmospheric Sciences | 1,775 | 16 |
| Paleontology | 503 | 0 |
| Geology | 379 | 5 |
| Oceanography | 350 | 2 |
Social Sciences
15 subfields · 5,757 scientists worldwide · 17 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Education | 2,407 | 2 |
| Political Science & Public Administration | 557 | 2 |
| Geography | 448 | 2 |
| Law | 384 | 5 |
| Information & Library Sciences | 331 | 4 |
| Criminology | 298 | 0 |
| Sociology | 293 | 1 |
| Social Work | 209 | 0 |
| International Relations | 198 | 0 |
| Cultural Studies | 184 | 0 |
| Social Sciences Methods | 118 | 0 |
| Science Studies | 109 | 0 |
| Family Studies | 86 | 0 |
| Demography | 81 | 1 |
| Gender Studies | 54 | 0 |
Public Health & Health Services
7 subfields · 5,290 scientists worldwide · 12 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Public Health | 1,692 | 4 |
| Nursing | 1,519 | 4 |
| Rehabilitation | 659 | 0 |
| Health Policy & Services | 490 | 1 |
| Substance Abuse | 376 | 0 |
| Speech-Language Pathology & Audiology | 283 | 2 |
| Gerontology | 271 | 1 |
Economics & Business
12 subfields · 4,668 scientists worldwide · 38 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Business & Management | 1,406 | 21 |
| Economics | 1,129 | 3 |
| Logistics & Transportation | 671 | 5 |
| Finance | 338 | 4 |
| Marketing | 326 | 1 |
| Sport, Leisure & Tourism | 239 | 1 |
| Accounting | 146 | 1 |
| Agricultural Economics & Policy | 140 | 1 |
| Development Studies | 107 | 1 |
| Econometrics | 76 | 0 |
| Industrial Relations | 53 | 0 |
| Economic Theory | 37 | 0 |
Psychology & Cognitive Sciences
8 subfields · 3,988 scientists worldwide · 2 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Experimental Psychology | 1,200 | 1 |
| Social Psychology | 858 | 0 |
| Developmental & Child Psychology | 654 | 0 |
| Clinical Psychology | 397 | 1 |
| Behavioral Science & Comparative Psychology | 381 | 0 |
| Human Factors | 337 | 0 |
| General Psychology & Cognitive Sciences | 86 | 0 |
| Psychoanalysis | 75 | 0 |
Mathematics & Statistics
4 subfields · 3,054 scientists worldwide · 38 from India
| Subfield | Worldwide | From India |
|---|---|---|
| General Mathematics | 1,656 | 12 |
| Applied Mathematics | 516 | 10 |
| Statistics & Probability | 513 | 2 |
| Numerical & Computational Mathematics | 369 | 14 |
Built Environment & Design
4 subfields · 1,785 scientists worldwide · 26 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Building & Construction | 1,173 | 19 |
| Urban & Regional Planning | 315 | 0 |
| Design Practice & Management | 257 | 7 |
| Architecture | 40 | 0 |
Communication & Textual Studies
3 subfields · 1,323 scientists worldwide · 4 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Languages & Linguistics | 536 | 0 |
| Literary Studies | 444 | 4 |
| Communication & Media Studies | 343 | 0 |
Historical Studies
6 subfields · 1,283 scientists worldwide · 5 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Archaeology | 452 | 1 |
| History | 428 | 2 |
| Anthropology | 212 | 1 |
| Classics | 76 | 1 |
| History of Science, Technology & Medicine | 66 | 0 |
| History of Social Sciences | 49 | 0 |
Philosophy & Theology
3 subfields · 689 scientists worldwide · 1 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Philosophy | 305 | 1 |
| Religions & Theology | 246 | 0 |
| Applied Ethics | 138 | 0 |
Visual & Performing Arts
4 subfields · 179 scientists worldwide · 0 from India
| Subfield | Worldwide | From India |
|---|---|---|
| Music | 78 | 0 |
| Art Practice, History & Theory | 56 | 0 |
| Drama & Theater | 29 | 0 |
| Folklore | 16 | 0 |
Counted by ScholarsColab from the 2026 list; each subfield is shown under the field most of its scientists belong to.
Questions people ask
How many fields and subfields does the Top 2% list use?
20 fields and 174 subfields. Every scientist is placed in the subfield where most of their papers belong, and the top 2% is counted inside that subfield.
Is it easier to enter the Top 2% list in a small subfield?
Not necessarily. The top 2% is a share, so a small subfield has fewer places, but also fewer people competing for them. What matters is your c-score against the others in the same subfield.
More on the Top 2% list
Your own numbers against the Top 2% of your subfield. The free check opens soon.
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