History

ACS was founded over fifty years ago in Monrovia to serve the growing expatriate community, eventually expanding to 400+ students from more than 40 countries. It closed in 1989 due to the civil war. AISM reopened in 2007 with strong support from alumni, Liberians, and U.S. Ambassador Booth, signaling renewed stability in Liberia. Former President Ellen Johnson Sirleaf also supported the reopening. In October of 2025, AISM’s stakeholders voted to have the school become part of Quality Schools International, officially beginning a new phase in the school’s existence. Today, AISM is an independent, non‑profit, co‑educational day school in Congotown, accredited by MSA and grounded in a strong, supportive community.