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 261 (on behalf of over 2,000 societies and associations)
Participating Libraries 919
Committed E-Journal Titles 18,781
Committed E-Book Titles 220,570
Committed D-Collections 115

Content Facts & Figures Table

Preserved Archival Units (articles, books, etc.) 34,480,072
Preserved E-Journal Titles 19,334
Preserved E-Book Titles 200,508
Preserved Files 580,937,665
Preserved Images 310,487,519
Preserved Repository created archival files 94,357,943
Preserved Supplied text files 129,328,911
Preserved Application Specific Files 22,224,260
Preserved Multi-file Packages 1,574,220
Preserved Video Files 54,528
Preserved Audio Files 1,552
Preserved Executable Files 17