Cambridge Information Group (CIG) is a privately held, family-owned global investment firm focusing on information services, education and technology.
The companies initial holdings were Cambridge Scientific Abstracts (CSA), Disclosure Incorporated, and National Standards Association.
[2] CIG purchased R. R. Bowker in 2001[3] and Sotheby's Institute of Art in 2003.
[4] CIG sold ProQuest to Clarivate for $5.3 billion on December 1, 2021, .
[5] On June 10, 2022, CIG acquired Emerald Group Publishing.