Inside University of Perugia's largest research partnership: Sapienza University of Rome

Behind University of Perugia's research output sits a defining relationship: 1,065 co-authored works with Sapienza University of Rome (Italy) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 1,005 collaborating institutions across 78 countries, producing 17,599 joint works over the window, with international co-authors on 39% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.72, where the world average is 1.0.

The Research Collaboration Index, the first global account of how universities actually collaborate, publishes its first full edition on Tuesday 15 September at 09:00 UK.

Every figure derives from the open global research record and is checkable at source.