Inside University of Notre Dame's largest research partnership: Indiana University

Behind University of Notre Dame's research output sits a defining relationship: 358 co-authored works with Indiana University (United States) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 1,043 collaborating institutions across 78 countries, producing 20,643 joint works over the window, with international co-authors on 33% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.81, 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.