From its outset, the Istitût has worked to strengthen relations with other linguistic minorities in Europe. According to its statutory objectives, it its dedicated above all to maintaining constant relations with other Ladin peoples (Romansh and Dolomite Ladins), which it does by organising numerous inter-Ladin conferences and common cultural events.

Together with Catalans, Sardinians, Maltese and Berbers, the Istitût has given life to the "RoleMed", a network of emerging Mediterranean languages.