CERN welcomes physicists (Users) from various institutes around the world, including Belgium.
There are also Belgian physicists participating to CERN experiments through institutes from other countries.

Key numbers about the Belgian participation to CERN research programmes

Data taking experiments in which Belgian institutes take part

Experiments	Participating Belgian Institutes
CMS	Ghent University KU Leuven Université catholique de Louvain (UCL) Université Libre de Bruxelles (ULB) Universiteit Antwerpen Vrije Universiteit Brussel (VUB)
ISOLDE Facility (mutiple experiments)	Ghent University KU Leuven Belgian Nuclear Research Center (SCK-CEN) Université Libre de Bruxelles (ULB)
nTOF	Joint Research Center (JRC) (IRMM)
NA62	Université catholique de Louvain (UCL)

Sources: CERN Greybook for experiments and institutes and CERN HR report for users

Access up-to-date information about the Belgian institutes which participated or are participating to CERN research programmes in the Greybook.