Inside Universitat Politècnica de Catalunya's largest research partnership: Universitat de Barcelona

Behind Universitat Politècnica de Catalunya's research output sits a defining relationship: 1,345 co-authored works with Universitat de Barcelona (Spain) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 1,056 collaborating institutions across 77 countries, producing 27,733 joint works over the window, with international co-authors on 45% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.4, 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.