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.

1,229
participating publishers

on behalf of over 2,000 societies and associations

1,295
participating libraries
219
trigger events
42,496
committed ejournal titles
2,473,231
committed ebook titles
353
committed digital collections

Preserved content

Preserved archival units (articles, books, etc.) 152,182,137
Preserved ejournal titles 41,227
Preserved ebook titles 2,375,047
Preserved files 2,777,339,686
Preserved images 1,683,207,106
Preserved repository-created archival files 332,245,075
Preserved supplied text files 564,112,278
Preserved application-specific files 35,636,380
Preserved multi-file packages 25,683,283
Preserved video files 634,302
Preserved audio files 17,207
Preserved executable files 122