Portico is one of the most comprehensive digital preservation archives; we hold more content than others and have extensive knowledge about the data we preserve, as well as the component file types and formats. The tables below provide regularly updated figures on the content and global library and publisher participation.
Participation facts and figures
| Participating publishers | 753* |
| Participating libraries | 1,014 |
| Committed e-journal titles | 34,453 |
| Committed e-book titles | 1,731,030 |
| Committed digital collections | 238 |
* on behalf of over 2,000 societies and associations
Content facts and figures
| Preserved archival units (articles, books, etc.) | 106,533,874 |
| Preserved e-journal titles | 31,837 |
| Preserved e-book titles | 1,159,778 |
| Preserved files | 1,794,349,227 |
| Preserved images | 1,098,459,830 |
| Preserved repository-created archival files | 234,143,745 |
| Preserved supplied text files | 367,906,489 |
| Preserved application-specific files | 29,337,466 |
| Preserved multi-file packages | 11,860,560 |
| Preserved video files | 188,658 |
| Preserved audio files | 5,909 |
| Preserved executable files | 106 |