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 377 (on behalf of over 2,000 societies and associations)
Participating Libraries 985
Committed E-Journal Titles 25,427
Committed E-Book Titles 759,104
Committed D-Collections 156

Content Facts & Figures Table

Preserved Archival Units (articles, books, etc.) 64,000,116
Preserved E-Journal Titles 22,225
Preserved E-Book Titles 447,574
Preserved Files 1,114,958,939
Preserved Images 699,951,788
Preserved Repository created archival files 150,532,448
Preserved Supplied text files 218,797,423
Preserved Application Specific Files 25,112,639
Preserved Multi-file Packages 4,169,910
Preserved Video Files 95,995
Preserved Audio Files 2,342
Preserved Executable Files 56