University of Cologne's research now spans 80 countries
Research at University of Cologne is a global undertaking: the university co-authors with 1,081 institutions in 80 countries, and international collaborators appear on 44% of its output.
Its largest single research relationship is with Heinrich Heine University Düsseldorf in Germany, at 2,373 joint works. Across the network, five-year output reaches 35,490 co-authored works.
Connectivity of this kind is increasingly the currency of modern science, and it is measurable: the open scholarly record makes every one of these relationships public and checkable.
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.