The Inspired Group also acquired the St. Louis School of Milan in 2018, adding to its Milanese network.
The International Baccalaureate was gradually adopted as the main curriculum after the Italian government recognized the IB as equivalent to the Maturità (the Italian equivalent of A Levels) during the late 1980s to early 1990s.
The British curriculum is no longer taught and ISM is solely an IB World School.
ISM, as well as its sister schools in Monza (1984), Rome (1988) and Modena (1998), are part of the network.
In 2010, ISE opened another school in Siena as part of a joint venture with Novartis Vaccines, Monte Dei Paschi and the provincial government of Siena.