KIST is affiliated with the following organizations:


IB World School

The IB, founded in 1968 in Geneva, is an organization that administers three curriculum programs for children from 3 to 19 years in schools around the world. KIST is authorized as an IB World School to offer all three programmes: the Primary Years Programme (PYP), the Middle Years Programme (MYP) and the Diploma Programme (DP). To ensure that educational standards are maintained and developed, re-evaluation is required every four or five years.
Authorization history
January 2002 - PYP authorization received
June 2003 - MYP authorization received
June 2004 - DP authorization received



The Council of International Schools (CIS) is a non-profit association of international schools and educational institutions that aims to improve international education around the world. KIST became a regular member of CIS in 2003, and gained approval as a candidate school for full accreditation in January 2015. Full accreditation by CIS was received in February 2017.


Edexcel is the UK's largest awarding organization, offering academic and vocational qualifications and testing to educational institutions around the world. In May 2013, KIST received recognition as an Edexcel International Centre authorized to offer the International General Certificate of Secondary Education (IGCSE), an internationally recognized qualification for students based on individual subjects of study.


TAIP, founded in 2005, supports international preschools in the Tokyo area in terms of networking, staff development, parent education and publicity. KIST is a founding member of TAIP.


Tokyo Metropolitan Government
KIST was certified as an authorized educational foundation by the Tokyo Metropolitan Government’s Ministry of Education in July 2000. As an educational foundation, the school is eligible for tax-exempt status. Students are also eligible for concession fares on public transportation.


Principal's Training Center
The PTC is an international organization founded in 1989 that provides professional development opportunities and training for practicing and aspiring leaders in international schools. KIST is an official member of the PTC.

The JASCD, the Japan-based affiliate of the Association of Supervision and Curriculum Development, is a professional organization for educators that is dedicated to advancing best practices and policies for the success of learners. Through membership, our teaching staff are provided with opportunities to meet and network with other educators and to participate in professional development opportunities here in Japan.