University positions in the ranking result from aggregating the D-indexes (Discipline H-index) of all qualifying scholars affiliated with a given institution, whose principal publication focus is in Engineering and Technology. The D-index strictly encompasses publications and citation data pertaining to the analyzed discipline, thus providing a focused measure of scholarly contribution within Engineering and Technology.
Scope and Criteria of Evaluation
The ranking is grounded in an exhaustive analysis of 279,971 scientist profiles sourced from a diversity of bibliometric resources. Specifically, 50,429 scientists specializing in Engineering and Technology were rigorously examined. Only scholars with a D-index threshold of 30 or above, and whose predominant body of work resides in Engineering and Technology, were considered. The assessment also accounted for scientists’ awards and achievements to further distinguish academic excellence.
To ensure representation of the very best, the D-index threshold for top researchers was set in increments of 10, proportionally reflecting the estimated number of scholars in each discipline, while guaranteeing inclusion of the top 1% of leading scholars. Rigorous checks ensured the proximity between a scientist’s general H-index and their D-index remained at 30% or less. This method effectively isolates discipline-specific impact and controls for generalist publication patterns. The acknowledgment of awards and professional achievements further adds rigor to the evaluation.
Verification and Quality Assurance
Research.com recognizes that raw bibliometric data is not an absolute measure of scholarly output. To address this, every scientist profile was manually verified and cross-referenced against an array of reputable publication sources to confirm accuracy and legitimacy.
While the volume of papers published in premier journals and conference proceedings does not directly influence a researcher's position, it is acknowledged as a valuable indicator of a scientist’s overall contribution to scholarly discourse. The computed ranking positions are strictly based on the H-index, as calculated using data collated from OpenAlex and CrossRef, both known for their credibility and extensive coverage of the research community.
For a deeper understanding of the ranking’s methodological framework, detailed explanations are available on our methodology page.
Research.com’s Mission and Agenda
At Research.com, our primary mission is to inspire and inform scientists, entrepreneurs, and policymakers by providing unbiased insights into the movements and achievements of top experts. By assembling and publishing rigorous rankings, we empower the research community to identify leading figures within specific scientific disciplines, across countries, and inside individual institutions—serving as an indispensable tool for collaboration, benchmarking, and strategic decision-making.
Key Results from the 4th Edition Ranking
- Top 3 institutions in Slovenia with the highest number of leading scientists:
- University of Ljubljana (4 scientists)
- University of Maribor (1 scientist)
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Most prominent scholars in Engineering & Technology worldwide are affiliated with:
- Rice University
- Pennsylvania State University
- University College Dublin
- HEC Montréal
- Quaid-i-Azam University
- Northwestern University
- Stanford University
- Carnegie Mellon University
- Penn State Harrisburg
- The University of Texas at Arlington
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Top scientists in the world:
- Professor Frederick E. Shelton (Johnson & Johnson, United States) – D-index: 257
- Menachem Elimelech (Rice University) – D-index: 200
- Bruce E. Logan (Pennsylvania State University) – D-index: 163
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The average total D-index for the top 5% universities is 2,073, compared to an average of 305 across all 1,290 institutions in the ranking.
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Scientists affiliated with the top 5% of universities have published, on average, 10,087 articles in Engineering and Technology, against an average of 1,480 for all 1,290 universities.
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Researchers at the top 1% of universities have earned, on average, 1,279,971 citations, compared to an average of 71,259 across all ranked universities.
This meticulous evaluation and transparent presentation of data reinforce Research.com's commitment to recognizing excellence and fostering progress in the global research landscape. For more details about evaluation criteria, we encourage all readers to consult our methodology page.
