International Schooling is accredited by North Central Association Commission on Accreditation and School Improvement (NCA CASI), USA. NCA CASI, USA is a division of Advanc-ED.
AdvancED is the largest community of education professionals in the world. They are a non-profit, non-partisan organization that conducts rigorous, on-site external reviews of PreK-12 schools and school systems to ensure that all learners realize their full potential. While their expertise is grounded in more than a hundred years of work in school accreditation, AdvancED is far from a typical accrediting agency. Their goal isn't to certify the schools that are good enough; rather, their commitment is to help schools improve.
Combining the knowledge and expertise of a research institute, the skills of a management consulting firm and the passion of a grassroots movement for educational change, they serve as a trusted partner to more than 32,000 schools and school systems-employing more than four million educators and registered more than 20 million students-across the United States and 70 other nations. AdvancED was created through a 2006 merger of the PreK-12 divisions of the North Central Association Commission on Accreditation and School Improvement (NCA CASI) and the Southern Association of Colleges and Schools Council on Accreditation and School Improvement (SACS CASI)-and expanded through the addition of the Northwest Accreditation Commission (NWAC) in 2011.