It accredits international schools and is a paying association at the same time. It examines governance and ownership, the curriculum, teaching, student wellbeing, staff and premises; a team of volunteers from other CIS accredited schools visits the school. Membership and accreditation are different things here, and schools confuse them more often than anything else.
What the badge means for this school. The school has been through this organisation's accreditation. It was judged as a whole: governance, safeguarding, staff, premises, teaching. The entry stands in the organisation's public register - anyone can check it.
Register to check for yourself, and the full guide →SISB Public Company Limited: a Thai public company traded on the Stock Exchange of Thailand under the ticker SISB, which runs the Singapore International School of Bangkok network of schools. The first school of the network opened in 2001. As of September 2026 six campuses are working - Pracha Uthit, Suvarnabhumi and Thonburi in Bangkok, and also Nonthaburi, Chiang Mai and Rayong; the Rangsit campus in Pathum Thani province opens in August 2026. All the campuses teach children from 2 to 18 years old to a single scheme: the British early years programme, the Singaporean programme in primary school, a mixed Singaporean-British one in years 7-8, Cambridge IGCSE in years 9-10 and Cambridge A/AS Level or the IB Diploma programme in years 11-12. The company publishes on its site its financial statements, annual reports, the composition of the board of directors and the materials of shareholder meetings.
What this means for this school. The network owns or operates the school. Its accreditation and programme authorisation the school obtains separately, in its own name.