top-cited scientists
2026 list
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Top-cited scientists›United States›Colorado State University System›Grumbach, Jacob M.
top-cited scientiststopcitedscientists.com
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249,310 authors in the 2026 list · ranked by c-score excluding self-citations
1
Wang, Zhong Lin
Chinese Academy of Sciences
🇨🇳 CHN
Nanoscience & Nanotechnology
#1 · top <0.01%
5.27240,6537341.211.0%3,0261986–2026
2
Kresse, Georg
Universität Wien
🇦🇹 AUT
Applied Physics
#1 · top <0.01%
5.24738,3373215.90.7%4111992–2026
3
Mirjalili, Seyedali
Torrens University Australia
🇦🇺 AUS
Artificial Intelligence & Image Processing
#1 · top <0.01%
5.23526,7036230.93.7%6792010–2026
4
Bandura, Albert
Stanford University
🇺🇸 USA
Social Psychology
#1 · top <0.01%
5.22212,6684132.90.2%2101953–2024
5
Grimme, Stefan
Universität Bonn
🇩🇪 DEU
Chemical Physics
#1 · top <0.01%
5.17124,5553823.72.2%7491992–2026
6
Bengio, Yoshua
Montreal Institute for Learning Algorithms
🇨🇦 CAN
Artificial Intelligence & Image Processing
#2 · top <0.01%
5.09956,6416726.40.5%6651988–2026
7
Ajzen, Icek
University of Massachusetts Amherst
🇺🇸 USA
Social Psychology
#2 · top <0.01%
5.06713,8623021.90.2%1041969–2026
8
Girshick, Ross B.
Vercept
🇺🇸 USA
Artificial Intelligence & Image Processing
#3 · top <0.01%
5.05561,3794013.80.0%922004–2025
9
Ryan, Richard M.
Australian Catholic University
🇦🇺 AUS
Social Psychology
#3 · top 0.01%
5.05325,0495833.61.3%3571980–2026
10
Altman, Douglas G.
University of Oxford Medical Sciences Division
🇬🇧 GBR
General & Internal Medicine
#1 · top <0.01%
5.03971,0898938.61.3%1,1161972–2025
11
Gross, James J.
Stanford University
🇺🇸 USA
Experimental Psychology
#1 · top <0.01%
5.02012,8745432.04.2%6441989–2026
12
Hinton, Geoffrey E.
University of TorontoNobel laureate
🇨🇦 CAN
Artificial Intelligence & Image Processing
#4 · top <0.01%
5.01152,7804524.60.1%2931979–2026
13
Perdew, John
Tulane University School of Science and Engineering
🇺🇸 USA
Applied Physics
#2 · top <0.01%
5.01030,3163718.60.6%3651970–2026
14
McClements, David Julian
University of Massachusetts Amherst
🇺🇸 USA
Food Science
#1 · top <0.01%
5.00423,1705236.95.9%1,8551987–2027
15
Lal, Rattan A.
The Ohio State University
🇺🇸 USA
Agronomy & Agriculture
#1 · top <0.01%
5.00311,2274433.94.0%1,4151922–2026
16
Breiman, Leo
University of California, Berkeley
🇺🇸 USA
Statistics & Probability
#1 · top <0.01%
5.00122,0151513.10.0%581960–2018
17
Li, Heng
Harvard Medical School
🇺🇸 USA
Bioinformatics
#1 · top <0.01%
4.98821,2394015.02.5%1342004–2026
18
Moher, David
Ottawa Hospital Research Institute
🇨🇦 CAN
General & Internal Medicine
#2 · top <0.01%
4.98688,3297519.91.0%9371984–2026
19
Higgins, Julian P.t.
Bristol Medical School
🇬🇧 GBR
General & Internal Medicine
#3 · top <0.01%
4.95654,5555823.30.8%4151996–2026
20
Neese, Frank
Max Planck Institute for Coal Research
🇩🇪 DEU
Chemical Physics
#2 · top <0.01%
4.95511,7203922.96.6%6731995–2026
21
Tibshirani, Robert John
Stanford University
🇺🇸 USA
Statistics & Probability
#2 · top <0.01%
4.95014,2904220.91.7%4321982–2026
22
Teece, David J.
University of California, Berkeley
🇺🇸 USA
Business & Management
#1 · top <0.01%
4.9389,3893125.90.5%3001971–2026
23
Friston, K. J.
UCL Queen Square Institute of Neurology
🇬🇧 GBR
Neurology & Neurosurgery
#1 · top <0.01%
4.93412,7944629.49.0%1,3731989–2026
24
Ioannidis, John P.A.
Stanford University School of Medicine
🇺🇸 USA
General & Internal Medicine
#4 · top <0.01%
4.92626,0125627.93.1%1,4881994–2026
25
Gogotsi, Yury G.
Drexel University
🇺🇸 USA
Nanoscience & Nanotechnology
#2 · top <0.01%
4.89731,8608535.33.7%1,1701984–2026

# rank by c-score; Subfield rank rank and top % in main subfield; c-score composite citation score (0–6); Cites 2025 citations in 2025; h h-index; hm co-authorship-adjusted h-index; Self-cit. self-citation share; Active years of first and last paper.

top-cited scientiststopcitedscientists.com
2026 list · citations received in 2025

Grumbach, Jacob M.

Colorado State University System · 🇺🇸 United States
·

Jacob M. Grumbach is ranked #43,821 of 249,310 in the 2026 list of top-cited scientists, often called the Stanford–Elsevier top 2% list, which counts citations received during 2025.

Ranking

Compare scientists →
Global rank
#43,821
Within the top 100,000 · with self-cites: #48,633
Subfield rank
#395
top 1.5% of 27,183 authors in Political Science & Public Administration
Rank in country
#16,467
of 73,724 listed in United States
Rank in institution
#7
of 10 listed at Colorado State University System
Rank in career stage
#3,511
of 39,630 listed authors who first published 2012 or later (first paper 2012)
Global and subfield ranks come from the dataset and are computed across all Scopus authors, not just this list. Country, institution and career-stage ranks are positions among authors in this list.

Across years

Each year's single-year list, excluding self-citations; each counts the citations of the year before it
YearRankc-scoreCitationsh-index
2026 this page#43,8213.00732010
2025#46,3362.9722599
2024#104,7732.6921597
The data has no author ID, so years are matched by name and year of first publication. Each year is a new Scopus snapshot, so a big jump can come from Scopus splitting or merging author profiles. “Not found” means the author was below that year's threshold or is listed under a different name.

Composite score (c)

3.007out of a theoretical 6 · excluding self-citations
Total citationsNC = 320
0.507
h-indexH = 10
0.513
hm-index (co-authorship adjusted)Hm = 5.8
0.513
Cites to single-authored papersNCS = 137
0.496
Cites to single + first-authoredNCSF = 189
0.481
Cites to single + first + last-authoredNCSFL = 240
0.497
Each indicator is scaled as log(1+x) ÷ log(1+max x) across all authors, so 1.0 equals the highest value in Scopus. c is the sum of the six.

2025 impact vs career impact

Not found in the 2026 career list — this author did not meet that list's inclusion threshold (or the profile could not be matched).

Benchmarks in Political Science & Public Administration

P25P50P75P90P95P99This author
Citations51749122207526333
c-score0.801.321.852.322.603.133.01
Percentiles across all 27,183 Scopus authors in this subfield (all citations). Citations: above 95th percentile; c-score: above 95th percentile. Among listed authors here, 99% have self-citation below 21.8% (this author: 3.9%).

All indicators

IndicatorAll citationsExcl. self-citations
Papers (1960–2025)32
Self-citation share3.90%
Rank (c-score)48,63343,821
c-score3.0063.007
Citations333320
h-index1010
hm-index5.825.82
Single-authored papers7—
   ↳ cites to them140137
Single + first-authored papers14—
   ↳ cites to them198189
Single + first + last-authored papers20—
   ↳ cites to them250240
Distinct citing papers269266
Citations per citing paper1.241.20
Papers cited at least once2625
Subfield rank412395

Subject profile

Main fieldSocial Sciences65.6% of papers
Main subfieldPolitical Science & Public Administration46.9%
Second subfieldHealth Policy & Services9.4%

Countries of publication

Most frequent country🇺🇸 United States · 100.0% of papers
Countries with ≥10% of papers🇺🇸 United States
Multi-country careerNo (country data covers 97% of papers)

Retractions (Retraction Watch)

Retracted papers0
Citations to their retracted papers0
Citations received from retracted papers (any author)0
Retraction counts come from linking Scopus to the Retraction Watch database; a retraction is not by itself evidence of misconduct.

Look up elsewhere

Open in the full listGoogle Scholar ↗ORCID ↗

Searches by name, so results can include namesakes. Scopus profile data (the source) can be corrected only via the Scopus Author Feedback Wizard.

This page online: https://topcitedscientists.com/scientist/jacob-m-grumbach/

Data: Ioannidis, John P.A. (2026), ‘August 2026 data-update for “Updated science-wide author databases of standardized citation indicators”’, Mendeley Data, v9, doi:10.17632/btchxktzyw.9. 2026 list, ranked by composite citation score (c) excluding self-citations.

Printed from topcitedscientists.com, an independent site not affiliated with or endorsed by the dataset authors, Stanford University, Elsevier or Scopus. This is not an official document.

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