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 265 (on behalf of over 2,000 societies and associations)
Participating Libraries 919
Committed E-Journal Titles 18,796
Committed E-Book Titles 220,570
Committed D-Collections 115

Content Facts & Figures Table

Preserved Archival Units (articles, books, etc.) 34,663,434
Preserved E-Journal Titles 19,547
Preserved E-Book Titles 200,518
Preserved Files 590,360,843
Preserved Images 326,030,933
Preserved Repository created archival files 95,021,207
Preserved Supplied text files 135,928,302
Preserved Application Specific Files 22,310,217
Preserved Multi-file Packages 1,657,219
Preserved Video Files 54,922
Preserved Audio Files 1,558
Preserved Executable Files 17