Accreditations, Associations and Membership

Thai Ministry of Education

HHIS is licensed by the Thai Ministry of Education and accredited through ONESQA (Sor mor Sor) the international schools inspection body.

Education Development Trust - ISQM

We are proud to have been awarded the International Schools Quality Mark (ISQM) in 2023 by EDT.   This accreditation process  ‘signifies that an  international school has demonstrated high standards of student achievement with an effective curriculum, good use of resources, a successful leadership team; and equally that there are  strong partnerships with parents and the community that ensure students are well cared for and receive an enriched education’ 

EDT is one of only four organisations who are authorised by the Thai Education Ministry to carry out international accreditations and inspections in Thailand. EDT is a UK based organisation working throughout the UK and internationally in 40 countries

International Baccalaureate (IB) World School

HHIS is a fully authorised IBO World School. We offer the two-year IB Diploma Programme for our students from 16 years old to 18 years old. It is recognised and respected for its broad and rigorous nature by universities worldwide.

Cambridge IGCSE

Cambridge IGCSE qualifications are the most popular international award for 14 to 16 year olds and is globally recognised by leading universities and employers.   HHIS is authorised to be a Cambridge IGCSE Examination Centre.  We offer Cambridge IGCSE examination courses to our students in Years 10 and 11.

International Schools Association of Thailand

The International Schools Association of Thailand (ISAT) was established to afford a link between accredited international schools and the Ministry of Education, in particular the Office of the Private Education Commission.

Duke of Edinburgh International Award

HHIS is an award centre for the D of E International Award.  Students from 14 years old have to opportunity to challenge themselves through adventures into the great outdoors as well as the development of new skills and work in the community. 


FOBISIA is a registered society in Singapore with its HQ located in Thailand. It is a not-for-profit
Federation of British international schools in Asia. FOBISIA is the premier Federation in Asia
supporting and promoting high-quality British-style international education.