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Who are Umbra Search's partners?

We are pleased to have a large and growing list of partners as contributing institutions (over 1,000 and counting!). This work would not be possible without the Digital Public Library of America, whose corpus provides over half of the content found in Umbra Search. If you would like to partner with Umbra Search, please write to us at, and write Partnership in the subject line.

Partnering Institutions

Founding Partners

Contributing Institution Statistics

Use statistics are now available for records shared by our contributing institutions. A list of all contributing institutions along with the total number of full record views, view original clicks, and total user engagements are included.

Umbra Search Widgets

Help promote the adoption and use of Umbra Search with embeddable widgets that can be featured on your site.