Inside Université Paris-Sud's largest research partnership: Université Paris-Saclay

Behind Université Paris-Sud's research output sits a defining relationship: 3,111 co-authored works with Université Paris-Saclay (France) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 836 collaborating institutions across 73 countries, producing 4,936 joint works over the window, with international co-authors on 46% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.15, 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.