Shinagawa International School (SIS)

Shinagawa International School (SIS) is a well-established IB Continuum international day school in Tokyo, founded in 2007, offering a complete educational pathway from Preschool (age 3) through Grade 12. Located across three specialized campuses in Shinagawa (Aoyoko, Seaside, and Samezu), SIS delivers the full International Baccalaureate framework—Primary Years Programme (PYP), Middle Years Programme (MYP), and Diploma Programme (DP). The school serves a highly diverse community representing over 40 nationalities and maintains a strong teacher-to-student ratio of 1:6, ensuring personalized academic support and mentorship. Fully accredited by the Council of International Schools (CIS) and WASC, SIS provides globally recognized qualifications including the IB Diploma and SIS High School Diploma. With modern facilities such as science laboratories, design and media rooms, indoor gymnasiums, libraries with over 15,000 volumes, and access to nearby sports fields, the school balances academic rigor with arts, athletics, and well-being. Offering more than 70 after-school programs, integrated Japanese language learning, comprehensive learning support services, and a structured August–June academic calendar, SIS presents a comprehensive and multicultural international education option in central Tokyo.