SIB School of Language, operated by PT Sentra Intelektual Bahasa, teaches Bahasa Indonesia, English and Mandarin from its centre on the 17th floor of Menara Tendean on Jalan Kapten Tendean in Mampang Prapatan, South Jakarta. The Bahasa Indonesia track is aimed at foreign residents who need practical, everyday Indonesian for shopping, staff, drivers, landlords and government offices, rather than academic study.

Lessons are offered as private one-to-one sessions or in small groups, and the school also runs in-company training where instructors travel to a client's office. Its Comprehensive Training Program is designed for organisations that need a measurable curriculum and progress reporting across a group of staff. Workshops and seminars are run alongside the regular course calendar.

The Tendean location is convenient for expatriates living or working in Kemang, Kuningan and the wider Mampang corridor, and enquiries, placement testing and scheduling are all handled in English. Courses are available for adults, teenagers and children, so families relocating together can study in parallel.