Singapore International School (SIS), established in 2004, is a part of KinderWorld International Group, founded in Singapore in 1986. KinderWorld's headquarters are in Singapore, and the group operates primarily in Vietnam's education sector, offering services from pre-nursery to high school, including a university foundation program. SIS, one of KinderWorld's three school brands in Vietnam, provides International and Integrated Programs across sixteen campuses in nine Vietnamese cities.