Our Accreditations

Education Development Trust (EDT)

St Andrews International School, Green Valley is a fully accredited Gold level school by EDT (Education Development Trust). In 2015 Green Valley was the 1st and only school in the Eastern Seaboard to be awarded the 1st tier level of accreditation making us a Gold Level school and to achieve an ‘Outstanding’ mark in all the assessment criteria. In 2018 and for our latest accreditation (the next accreditation will take place in 2022), we were very proud to achieve the Gold level for a 2nd time with an ‘Outstanding’ mark AGAIN in all the assessment criteria. We are extremely proud to have achieved the highest accolade for our accreditation for two successive inspections and strive to keep doing so in the future…

“Most students make outstanding progress in nearly every key stage and reach levels of attainment in the core subjects that are above those expected for their age.”


International Baccalaureate (IB) World School

St. Andrews International School, Green Valley is a fully authorized IBO World School. We offer the IB Primary Years Programme and the two-year IB Diploma Programme as our pre-university curriculum with students aged from 16 to 18 years of age.

The IBO has 4998 programmes being offered worldwide, in 3,967 schools, in 147 countries all around the world. Due to the broad and rigorous nature of the IB Diploma programme it has now become the preferred qualification by many Directors of Admissions for University courses worldwide.


All St. Andrews Schools are licensed by the Thai Ministry of Education and accredited through ONESQA (Sor mor Sor) the international schools inspection body.

Affiliations and Membership


St. Andrews Green Valley is an active member of the Federation of British International Schools in Asia (FOBISIA). FOBISIA currently has a membership of 37 of the leading British-style schools in the region and provides a wide range of activities for students and teachers.

Council of International Schools

The Council of International Schools (CIS) is a not-for-profit membership association of schools and post-secondary institutions. CIS defines standards and provides services that support the continuous improvement of international education.

International Schools of Thailand

The International Schools Association of Thailand (ISAT) was established in 1994. Its principal purpose is to act as a link between international schools which are members of ISAT on the one hand and the Ministry of Education, in particular the Office of the Private Education Commission, on the other.

Cambridge IGCSE

Cambridge IGCSE is the world’s most popular international qualification for 14 to 16 years old, and Green Valley is authorised to be a Cambridge IGCSE examination centre. We offer the Cambridge IGCSE examination course to our students in Year 10 and 11. It is recognised by leading universities and employers worldwide, and is an international passport to progression and success.

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