CWI is, for instance, host of the W3C Benelux Office - the regional node of the World Wide Web Consortium in the Benelux and PWN - the national platform for mathematics in the Netherlands.
- Epsilon Uitgaven (publisher of scientific books for students and scientists)
- Nieuw Archief voor Wiskunde (magazine of the Royal Dutch Mathematical Society - KWG)
- Platform Wiskunde Nederland (PWN) (national platform for mathematics)
- Pythagoras (maths magazine for youngsters)
- Vierkant voor Wiskunde (maths activities for youngsters)
- W3C Benelux Office (web standards)
- Wiskunde Persdienst, part of KWG and NVvW (national maths agenda and news)
CWI participates in:
- Dutch Techcentre for Life Sciences (DTL) - cofounder
Special cooperation with:
CWI is an institute of NWO, the Netherlands Organisation for Scientific Research.
CWI is located at the Amsterdam Science Park, cooperating with the other organizations (such as AMOLF, Nikhef, SURFsara, UvA-FNWI) in research projects, communications and the annual Amsterdam Science Park Open Day in October.
CWI has about 200 research partners, such as businesses, governments, financial institutions and research organizations.