Inside University of Siegen's largest research partnership: RWTH Aachen University

Behind University of Siegen's research output sits a defining relationship: 178 co-authored works with RWTH Aachen University (Germany) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 738 collaborating institutions across 66 countries, producing 8,567 joint works over the window, with international co-authors on 38% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.85, 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.