Located on the beautiful island of Bali, Bali International School (BIS) is the oldest and most prestigious international school in Bali. BIS was started by parents in 1986. It is a co-educational, private, nonprofit school; serving students pre-school to grade 12. The school is governed by a Board of Directors elected annually by the parents and led by the Director. An Assistant Administrator for PS-grade 8 and a High School Academic Coordinator assist the Director. All teachers are fully qualified and experienced in international education.

BIS is accredited Preschool through grade 12 by the Western Association of Schools and Colleges and is authorised by the International Baccalaureate Organization for the IB Diploma Program, grades 11 to 12, and the IB Middle Years Program, grades 6-10, and the IB Primary Years Program Pre School to Grade 5. At the end of grade 12 students who have achieved the graduation requirements will receive a BIS Diploma. From 2006 grade 12 students who have achieved the BIS course requirements will receive a BIS Diploma and an IB Diploma or IB course certificates given that they have met the IB Diploma/course certificate requirements.