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.

1,230
participating publishers

on behalf of over 2,000 societies and associations

1,295
participating libraries
227
trigger events
42,493
committed ejournal titles
2,489,888
committed ebook titles
354
committed digital collections

Preserved content

Preserved archival units (articles, books, etc.) 153,026,857
Preserved ejournal titles 41,228
Preserved ebook titles 2,315,913
Preserved files 2,781,027,046
Preserved images 1,684,569,949
Preserved repository-created archival files 333,080,452
Preserved supplied text files 564,903,465
Preserved application-specific files 35,653,148
Preserved multi-file packages 26,107,222
Preserved video files 637,061
Preserved audio files 17,225
Preserved executable files 122