Inside Nanjing University of Posts and Telecommunications's largest research partnership: Zhejiang University

Behind Nanjing University of Posts and Telecommunications's research output sits a defining relationship: 2,892 co-authored works with Zhejiang University (China) in the five years to 2025, the university's single largest collaboration.

It anchors an unusually connected research base: 731 collaborating institutions across 59 countries, producing 20,352 joint works over the window, with international co-authors on 19% of output.

The collaborative work travels: its field-weighted citation impact stands at 2.57, 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.