 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.On October 2013, STI Health Professionals, Inc., a subsidiary of STI Education Systems Holdings, Inc. and operator of De Los Santos-STI, purchased Makati Medical Center College from Medical Doctors, Inc. through its sister school PWU.