Facts & Figures
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 and the component file types and formats. The tables below provide regularly updated figures on the content, including details about various file types and formats, as well as global library and publisher participation.
Participation Facts & Figures Table
| Participating Publishers |
294 (on behalf of over 2,000 societies and associations) |
| Participating Libraries |
922 |
| Committed E-Journal Titles |
20,947 |
| Committed E-Book Titles |
497,090 |
| Committed D-Collections |
122 |
Content Facts & Figures Table
| Preserved Archival Units (articles, books, etc.) |
43,651,874 |
| Preserved E-Journal Titles |
18,071 |
| Preserved E-Book Titles |
342,298 |
| Preserved Files |
788,001,148 |
| Preserved Images |
479,851,304 |
| Preserved Repository created archival files |
111,530,008 |
| Preserved Supplied text files |
167,506,094 |
| Preserved Application Specific Files |
23,356,304 |
| Preserved Multi-file Packages |
2,281,416 |
| Preserved Video Files |
70,282 |
| Preserved Audio Files |
1,759 |
| Preserved Executable Files |
44 |