The Sponsor Association of Thuringia Inernational School e.V. was founded in 2005. The goals of this non-profit organization are to make the only international school in Thuringia better known, create close relationships to the economy as well as to the government and support the school in a variety of ways - with ideas, manpower and financial assistance.

They are developing a fund raising system for financial support from privat persons, public institutions and Thuringian businesses.