Inside Purdue University West Lafayette's largest research partnership: North Carolina State University

Behind Purdue University West Lafayette's research output sits a defining relationship: 7,628 co-authored works with North Carolina State University (United States) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 1,153 collaborating institutions across 80 countries, producing 76,420 joint works over the window, with international co-authors on 24% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.51, 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.