The Institut Superior de Ciències Religioses de Barcelona (ISCREB) is a public educational institution which is linked to the Faculty of Theology of Catalonia. It was established in November 1996 and re-founded on May 2010.

KAICIID and ISCREB signed a Memorandum of Understanding in 2015. Since then, the two organizations have worked together on KAICIID’s Peace Mapping Project and a series of online courses on interreligious dialogue.

KAICIID has also participated with ISCREB at various global forums and conferences, including the 5^th Ibero-American Interreligious Conference held in Bogota, Colombia in 2016.