United Kingdom: IGCSE is widely used in schools in England, Wales, Northern Ireland and Scotland.
Singapore: IGCSE is offered in many schools and educational institutions in Singapore.
India: In India, there are many international schools and schools offering IGCSE program beyond CBSE or ICSE schools.
United States: Some private and international schools in the United States offer the IGCSE program.
Canada: There are also schools offering the IGCSE program in Canada.
Australia: Some Australian schools also offer the IGCSE programme.
Middle East and Asian countries: International schools in many countries in the Middle East and Asia use the IGCSE program.
African countries: There are also schools in some African countries that offer the IGCSE program.
Schools and educational institutions offering the IGCSE program may change constantly, so it is useful to check the IGCSE official website or regional education authorities to identify local schools or institutions offering the programme.