Inside Indiana University - Purdue University Indianapolis's largest research partnership: Indiana University

Behind Indiana University - Purdue University Indianapolis's research output sits a defining relationship: 28,241 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: 1,065 collaborating institutions across 78 countries, producing 34,503 joint works over the window, with international co-authors on 24% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.66, 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.