Portico is one of the most comprehensive digital preservation archives; we hold more content than others and have extensive knowledge about the content we preserve, including  an understanding of component file types and formats. The archive is growing daily, and the information below is regularly updated.

1,180
participating publishers

on behalf of over 2,000 societies and associations

1,287
participating libraries
216
trigger events
41,668
committed ejournal titles
2,399,356
committed ebook titles
468
committed digital collections

Preserved content

Preserved archival units (articles, books, etc.) 147,649,443
Preserved ejournal titles 40,186
Preserved ebook titles 2,161,746
Preserved files 2,661,752,717
Preserved images 1,615,406,325
Preserved repository-created archival files 318,106,562
Preserved supplied text files 541,175,003
Preserved application-specific files 34,920,234
Preserved multi-file packages 23,471,665
Preserved video files 525,592
Preserved audio files 13,596
Preserved executable files 121