Nishimachi international School is, legally, a school foundation (Gakko Hojin). Its purpose is to carry out "educational undertakings designed to teach Japanese and foreign children the cultural values and skills necessary to become persons with international perspective." Its Articles of Endowment identify the authorities and responsibilities of Advisors, a Board of Trustees, Statutory Auditors, and a Board of Directors, which includes the Head of School.

Governing Bodies