New York International School (NYIS) was founded by Dr. Chea Sokheang on July 8, 1996 — the time when the Government of Cambodia focused their attention on the Private Education Sector. The school was originally named ‘New York Center.’ Due to its constant development, the school underwent several fundamental transformations, and the name was changed to ‘New York Institute’ in 1999 and ‘New York International School’ in 2004. New York International School is a member of AG Education, with Arizon and Grand Mount International School (GMIS) as its sister companies.