Infobase operates a number of prominent imprints, including Facts On File, Films for the Humanities & Sciences, Cambridge Educational, Ferguson Publishing, Vault Law, Omnigraphics, and Chelsea House (which also serves as the imprint for the special collection series, "Bloom's Literary Criticism", under the direction of literary critic Harold Bloom).

[4] Facts On File acquired Ferguson Publishing, which specializes in career education works, in 2003.

[6] The private equity firm Veronis Suhler Stevenson bought Facts on File and Chelsea House in 2005.

[10] In 2017, Infobase acquired The Mailbox lesson plans and Learning magazine.

[11] Veronis Suhler Stevenson sold Infobase to another private equity firm, Centre Lane Partners, in 2018.