Paratext is an independent database and analytics company, based in the historic village of Middleburg, Virginia.

Paratext was founded in1993 by Eric M. Calaluca, who has developed scholarly information products since 1987. 

Paratext continues to expand through content acquisition and customized analytic tools, helping research institutions expand and track the use of scholarly materials. Paratext products are used by academic, public, and specialized institutions in North America and throughout the world.

Reference Universe | 1975-2020 ™

Reference Universe is a database providing researchers with comprehensive scholarly, authoritative introductions using your library's own specialized reference collection.

Data: 40 million citations.

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Eight Centuries  | Formerly Nineteenth Century Masterfile: 1106-1930 

Eight Centuries is a database offering researchers primary source analysis in Humanities, Engineering, History of Science, Legal Studies, the Arts, and more.

Data: 30 million citations.

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United States Documents Masterfile | 1774-2020 ™

United States Documents Masterfile is a resource for the study of United States documents, publications, and federally-funded research reports from 1774 to the present day.

Data: 15 million citations.

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