All degrees, the ecclesiastical faculty, and the ITI are internationally accredited by the Dicastery for Culture and Education of the Holy See (Vatican City State). All degrees, especially the BA and STM degrees, and the ITI as an academic institution, are additionally recognized by the State of Austria and therein receive further international recognition.




Pontifical Institutions: The ITI is one of around 70 ecclesiastical institutions of higher education around the world incorporated by the Holy See.

Lower Austrian Universities: The ITI is a member of the University Conference of the state of Lower Austria (Niederösterreich). 

Newman Guide: The ITI is recommended by the Cardinal Newman Society in Virginia, USA, and is listed in their Newman Guide to Choosing a Catholic College.

Catholic Identity College Guide: The ITI is on the National Catholic Register's “Catholic Identity College Guide”, a “carefully curated list of 44 educational institutions […], which are committed to goals of academic excellence while boldly proclaiming their fidelity to the Catholic faith.”

AEFLib: The ITI is a founding member of the Association Européenne des Facultés Libres, an European association of independent universities founded in 2008.