The school was founded in 1963 under the name DuPont de Nemours Private School. As part of a deal with the Luxembourg government to open Europe's first
polyester film plant in the country the American conglomerate
DuPont requested that its employees have access to an
American-style education for their children. Classes were first located in the dining room of a private home in
Strassen, before moving, in early 1963, to a single classroom at a primary school in
Cessange. Soon after, the Luxembourg government offered to the school classrooms at Servais House at the junction of Avenue Maria-Teresa and Boulevard Joseph II, where the school remained for six years. Seeing the school as a draw for other international firms, the Luxembourg government continued to support its development. In 1969, it gave the school access to a new building on rue Aloyse Kayser, in
Belair. The same year it was taken over by international firm
Goodyear and renamed the English Speaking School of Luxembourg. In 1972, with student numbers growing, the school moved to the premises of the Lycée Michel Rodange in Hollerich, where it took the name the American School of Luxembourg and became a not-for-profit organisation. From 1977 to 1999 the school was located at 188 Avenue de la Faiencerie in
Limpertsberg, where it adopted the name, the American International School of Luxembourg. In 1999, the school settled into its current purpose built location in Hollerich on the
Campus Geesseknäppchen, which hosts several other Luxembourg-based educational establishments. That same year the school adopted its present name, the International School of Luxembourg. ==Structure and student body==