More than 740 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 as such in the lists below.
| Libraries | Archive Founders |
|---|---|
| Dublin City University | yes |
| IRIS Electronic Information Services | |
| National University of Ireland, Galway | yes |
| National University of Ireland, Maynooth | yes |
| Trinity College Dublin | yes |
| University College Cork | yes |
| University College Dublin | yes |
| University of Limerick | yes |