Headquartered in Colorado Springs, Colorado, Association of Christian Schools International (ACSI) serves more than 5700 Christian schools in over 100 countries worldwide. As a faith-based education service association with a network of 18 regional offices throughout the world, ACSI serves schools and educators that educate over a million students worldwide.  

Services and programs of ACSI are designed to assist Christian Schools in every level of education covering Playgroup, Kindergarten, Elementary, Junior High School, and Senior High School. ACSI is a non-profit Christian education association committed to enable students, teachers, administrators, education board members, and parents.

Now more than 140 Christian schools in Indonesia are members of ACSI Indonesia. ACSI Indonesia's network covers Jakarta, Bandung, Surabaya, Yogyakarta, Semarang, Denpasar, Bekasi, Makassar, Malang, Manado, Mataram, Medan, Papua, Tangerang, and Tarakan.

Each member school or university retains its individual distinctives and operating independence.  Participation in any or all of the services of ACSI is voluntary. The ACSI Mission Statement is “To enable Christian educators and schools worldwide to effectively prepare students for life.”