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.

1,094
participating publishers

on behalf of over 2,000 societies and associations

1,289
participating libraries
215
trigger events
40,266
committed ejournal titles
2,277,460
committed ebook titles
332
committed digital collections

Preserved content

Preserved archival units (articles, books, etc.) 141,622,536
Preserved ejournal titles 38,865
Preserved ebook titles 1,623,357
Preserved files 2,521,937,914
Preserved images 1,521,613,530
Preserved repository-created archival files 305,037,009
Preserved supplied text files 518,303,808
Preserved application-specific files 34,174,028
Preserved multi-file packages 21,427,880
Preserved video files 404,934
Preserved audio files 10,682
Preserved executable files 116