It was first administered by the Divine Word Missionaries or SVDs for a contract of 10 years. To date, IHMS has educated hundreds of diocesan and religious priests (see Paring Bol-anon) as well as lay alumni now serving in different capacities all over the Philippines and abroad. Currently, there are more than a hundred seminarians studying at IHMS. The seminary is as much a unifying factor for the Paring Bol-anon and the different lay alumni groups since most of the members were once seminarians or professors there.