Johannes Gutenberg University Mainz's research now spans 79 countries
Research at Johannes Gutenberg University Mainz is a global undertaking: the university co-authors with 1,094 institutions in 79 countries, and international collaborators appear on 47% of its output.
Its largest single research relationship is with Heidelberg University in Germany, at 2,320 joint works. Across the network, five-year output reaches 34,845 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.
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