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.

1,224
participating publishers

on behalf of over 2,000 societies and associations

1,297
participating libraries
219
trigger events
42,444
committed ejournal titles
2,657,032
committed ebook titles
353
committed digital collections

Preserved content

Preserved archival units (articles, books, etc.) 151,982,483
Preserved ejournal titles 41,143
Preserved ebook titles 2,487,400
Preserved files 2,757,254,884
Preserved images 1,668,966,414
Preserved repository-created archival files 330,552,698
Preserved supplied text files 561,324,823
Preserved application-specific files 35,529,167
Preserved multi-file packages 25,361,121
Preserved video files 617,778
Preserved audio files 17,069
Preserved executable files 122