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 as such in the lists below.
| Libraries | Archive Founders |
|---|---|
| Reed College | yes |
| Rice University | yes |
| Rochester Institute of Technology | yes |
| Rockefeller University | yes |
| Royal Melbourne Institute of Technology | yes |
| Rutgers University, New Brunswick |