The Archive: Content & Access > Archive Facts & Figures

Archive Facts & Figures

Portico is one of the most comprehensive digital preservation archives. We hold more content than others and have extensive knowledge about the data we preserve and the component file types and formats. The tables below provide regularly updated figures on the content, including details about various file types and formats, as well as global library and publisher participation.


Participation Facts & Figures Table

Participating Publishers 147 (on behalf of over 2,000 societies and associations)
Participating Libraries 741
Committed E-Journal Titles 13,675
Committed E-Book Titles 129,781
Committed D-Collections 46

Content Facts & Figures Table

Preserved Archival Units (articles, books, etc.) 19,433,869
Preserved E-Journal Titles 9,568
Preserved E-Book Titles 16,861
Preserved Files 319,737,011
Preserved Images 193,879,992
Preserved Repository created archival files 65,871,401
Preserved Supplied text files 40,619,915
Preserved Application Specific Files 18,938,996
Preserved Multi-file Packages 315,056
Preserved Video Files 37,517
Preserved Audio Files 1,037
Preserved Executable Files 3