The International School of Aruba (ISA) is a non-profit private school in Aruba. In 2006, it moved to a new campus with a more centralized location. It was founded in 1929 and was owned by Lago Oil and Transport Co. Ltd. From 1986 on, the school was governed by the ISA community and parent body. ISA was acquired by International School Services (ISS) in 2004. In 2005, a new campus was constructed and ISA was relocated to the residential neighbourhood of Wayaca. ISA has approximately 200 students from Montessori through grade 12, comprising over 18 nationalities; the largest group of nationalities come from the Netherlands/ Aruba, Venezuela, United States/ Canada, and India. The average class size is 15 students to 1 teacher. ISA had 23 faculty members for the 2009-2010 school year. The staff are from 8 countries including US citizens, Canadians, Dutch/Arubans, South American and other island nationalities. Source: Wikipedia (en)