The « Mgr Boleslas Sloskans » Foundation is a non-profit association (ASBL) established in Belgium and officially recognised on 10 November 1994. Its main aim is to make known the figure of Mgr B. Sloskans. On 15 April 1999, the Belgian Bishops’ Conference recognised it as an actor (« applicant ») in the Cause for the beatification of Mgr B. Sloskans.

The president of the Foundation and Postulator of the Cause is Father Pascal Marie Jerumanis, the vice-postulator of the Cause and the treasurer of the Foundation is Miss Rita Lelde Briede. Other members: Archimandrite Claude Robinet, S.J., Mrs. Véronique Bontemps, Father Jean-Pascal Duloisy, Father André Marie Jerumanis, Father Stefan Scheevers, Father Jacques Grubben.