The IT Carlow Institutional Repository (http://repository.itcarlow.ie) is an online, open access collection of research output by academic staff, researchers and students of IT Carlow. The Repository includes:
The IT Carlow Institutional Repository is part of Research@THEA http://research.thea.ie/ which also includes PhD, research Masters and taught Masters theses from:
RIAN (http://rian.ie) is a a portal which provides Open Access to publications from research institutions throughout Ireland. You can search for theses by using the filters in the advanced search http://rian.ie/en/search/advanced.
Examples of research projects and dissertations from undergraduate and taught postgraduate students at the University of Leeds can be found at https://library.leeds.ac.uk/dissertation-examples.
OpenAire is an online portal of European research publications where you can filter by different types of theses including undergraduate: https://explore.openaire.eu/search/find/publications.
Other portals to search for theses are: