The  Infant  Jesus  Academy  (IJA) School System was established in response to a need for a co-educational school that  offers  excellent  education  to  students  of  families  of average means.

In the late 1970’s, Mrs. Consolacion Florentino-Mallonga, together with her husband, Dr. Alberto T. Mallonga, established a school in the Rancho Estate Subdivision, part of the growing suburbs of  Marikina.  Mrs. Mallonga was a respected educator in the community with more than 30 years of experience in teaching  and  administration  while  Dr.   Mallonga  was  a  physician  who  decided to retire from medical practice  to concentrate on helping his wife with  her  new endeavor.  The school that  they established was envisioned as an alternative for  families  who  could  not  afford  to send their children to exclusive  schools  but  who  desire  a  comparable,  quality education  for them. The  plan  to  put  up  this  school  was  conceived in December, the Christmas Season of 1978, thus its name, Infant Jesus Academy, to honor the Holy Infant in the Manger.