The Institute of International and European Affairs is also in Dublin. Dublin Business School (DBS) is Ireland's largest private third level institution with over 9,000 students located on Aungier Street, and Griffith College Dublin has its main facility in Portobello. There are also smaller specialised colleges, including The Gaiety School of Acting. The Irish public administration and management training centre has its base in Dublin, the Institute of Public Administration provides a range of undergraduate and post graduate awards via the National University of Ireland and in some instances, Queen's University Belfast.