[1] Since 1992 it has run postgraduate degrees, for primary and secondary schoolteachers validated by the University of Hull.
[2] [3] Since the partnership with the University of Hull commenced over 250 teachers have gained Masters in Education, and over 20 have completed doctorates.
[6] Each year the CLEO Annual Reunion Lecture is hosted in Mardyke House.
The MEd is recognised by the Irish Department of Education, with some 50 graduates being appointed school principal.
[citation needed] In 2019 CLEO in partnership with St. Patrick’s College, Maynooth and Alliance for Catholic Education (University of Notre Dame), began offering the Diploma in Catholic Education (DCE).