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.

1,242
participating publishers

on behalf of over 2,000 societies and associations

1,295
participating libraries
227
trigger events
42,540
committed ejournal titles
2,504,213
committed ebook titles
354
committed digital collections

Preserved content

Preserved archival units (articles, books, etc.) 153,584,703
Preserved ejournal titles 41,272
Preserved ebook titles 2,238,137
Preserved files 2,793,303,446
Preserved images 1,689,840,845
Preserved repository-created archival files 335,536,249
Preserved supplied text files 566,804,236
Preserved application-specific files 35,703,756
Preserved multi-file packages 27,315,999
Preserved video files 644,538
Preserved audio files 17,434
Preserved executable files 122