 During this time, the school was housed in the Quinta da Casa Branca, an 18th-century "quinta" (manor or estate) in Carnaxide, Oeiras, outside of Lisbon.The school renamed itself the "American International School of Lisbon" (AISL) in 1995, when management of the school passed from private ownership to the "Fundação Escola Americana de Lisboa" (American School of Lisbon Foundation; FEAL), a not-for-profit foundation was created by the American Delegation to Portugal, the Ford Motor Company, and Espírito Santo Financial Group.These three entities became the three, equal members of the school's board of trustees.