NERI regularly invites distinguished scientists from around the world to develop expertise and forge links with like-minded colleagues. We also support research attachments for students to go overseas.

EWI Visiting Professor Programme (VPP) 
- Prof. Avner Adin (2012-2015)
- Prof. Shane Snyder (2012-2017)

General Electric-NUS Visiting Scientist
NERI and GE regularly host leading experts in water research at NUS, to give talks, and interact and share their expertise with the NUS research community. Previous notable visiting scientists include:
- Prof. Tony Wong
- Prof. Gary Amy
- Prof. David Sedlak
- Prof. Joan Rose