It was first located at 606 Taft Avenue, a loaned church building in Manila, with eight teachers and fifty students from Grades 1 to 12.

[7] The ISM campus sits on a 7-hectare (17-acre) site in Bonifacio Global City, Taguig, Metro Manila.

The curriculum at elementary school is built on inquiry-based learning, which encourages students to become autonomous, creative thinkers.

As students proceed through middle and high school, the teaching style switches to subject-based programmes culminating in the IB Diploma.

The foreign languages program encompasses Chinese, Filipino, French, Japanese, Korean, and Spanish.

It boasts accreditation from the Western Association of Schools and Colleges (WASC) and the International Baccalaureate Organization (IBO).

There are 8 rooftop-covered tennis courts, a 10-line climbing wall, four sports gymnasiums (HS, MS, ES and PS), a gymnastics floor, three swimming pools, a martial arts room (Aikido, Taekwondo), a fitness suite and a weights and cardio facility.