What drives Leiden University's research
Ask where Leiden University's research energy goes and the open scholarly record gives a precise answer: 33,223 co-authored works in five years, built with partners in 79 countries.
Its most distinctive research concentrations include Astrophysics and Star Formation Studies; Galaxies: Formation, Evolution, Phenomena; Stellar, planetary, and galactic studies.
The recorded collaborative funding footprint stands at €321M across the world's major funders, every award traceable to the funder's own public record. The work's field-weighted citation impact is 3.82, against a world average of 1.0.
The Research Collaboration Index, the first global account of how universities actually collaborate, published its first full edition on 15 September 2026. The full results are public.
Every figure derives from the open global research record and is checkable at source.
For universities
The GRP Partnership Intelligence Platform
Your university beside the peers you choose, across both GRP indices: the universities and companies your peers work with that you do not, live funding calls matched to your strengths, the EU projects your peers have won, and a brief ready for your executive. A partner service for universities from Monday 19 October 2026: enquire, and the GRP team will confirm availability and pricing for your university.