Archive Content & Access > Facts & Figures

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 271 (on behalf of over 2,000 societies and associations)
Participating Libraries 919
Committed E-Journal Titles 19,204
Committed E-Book Titles 326,244
Committed D-Collections 115

Content Facts & Figures Table

Preserved Archival Units (articles, books, etc.) 34,962,642
Preserved E-Journal Titles 19,947
Preserved E-Book Titles 206,744
Preserved Files 601,995,005
Preserved Images 334,112,175
Preserved Repository created archival files 95,592,898
Preserved Supplied text files 140,189,282
Preserved Application Specific Files 22,317,146
Preserved Multi-file Packages 1,672,855
Preserved Video Files 55,169
Preserved Audio Files 1,565
Preserved Executable Files 17