STI was organized in 1983, when entrepreneurs Augusto C. Lagman, Herman T. Gamboa, Benjamin A. Santos and Edgar H. Sarte set up the Systems Technology Institute to train people in programming and IT. At first there were two schools, and now there are more than 100.
Programs include: information and communications technology, engineering, health care, business & management, hospitality and tourism management.
But started last 2006, the acronym of STI is no longer the meaning as Systems Technology Institute because it is not only the school of Technology and Sciences but with Health, Arts, Managements, Businesses, Hospitality and Culinary school. It is only STI College without meaning but the school for learning students. But still in this present, IT and CS courses is the largest population in this school.
In 2002, STI obtained a majority share in De los Santos College to create the DLS-STI College of Health Professions. In 2006, they acquired a stake in the De Los Santos Medical Center, now known as De Los Santos - STI Medical Center.
According to the latest CHED data, the STI Network is the Philippines’ largest, private, for profit tertiary education provider in the Philippines, by number of students, with a network of education institutions comprising approximately 67,361 students in 65 STI branded college campuses and 20 educational centres.
The Group also owns and operates two non-STI branded colleges and will manage one university.