More than 650 libraries around the world have chosen to include participation in Portico as one important component of their digital preservation strategy. Early participants are designated Archive Founders and are identified by an icon in the lists below.
| Libraries | Archive Founders |
|---|---|
| Dublin City University | yes |
| National University of Ireland, Galway | yes |
| National University of Ireland, Maynooth | yes |
| The Consortium of Irish Research and University Libraries, Irish Research eLibrary Initiative (IReL) | |
| Trinity College, Dublin | yes |
| University College, Cork | yes |
| University College, Dublin | yes |
| University of Limerick | yes |