The school also admits students whose parents are not sponsored by the Airbus Mobility program, subject to the payment of an annual tuition fee.

Although the school is intended principally to serve the educational needs of children of sponsored Airbus employees who transfer to Toulouse, other children may be accepted to the school on a tuition-paying basis, subject to available space and evaluation of their suitability.

Their fees can be found here: https://www.intst.eu/copy-of-admissions-process On 23 December 2006, Richard Jones-Nerzic, a former teacher at IST, was dismissed.

This decision raised concern that it had been taken to remove a union representative from the staff, since some other SUNDEP members were previously dismissed.

In January 2010, Richard Jones-Nerzic became the fourth teacher to win a case for unfair dismissal against the school.