Some of the companies that Cambridge Information Group (CIG) invests in deal in subjects and materials that would make a university don drool. CIG focuses broadly on businesses in the information and education industries, and in recent years has concentrated on the arts, humanities, technology, and the social sciences. CIG's flagship operation is ProQuest, which provides digital scholarly content to a clientele exceeding 30,000, particularly colleges and universities. The company typically revamps the top management of the businesses it acquires and holds on to its investments long-term. Founded in 1971, CIG has been owned exclusively by the Snyder family since the early 1990s.
Ever since its founding the company has been on an acquisition streak. Besides ProQuest (acquired 2007), in the information services sector CIG owns digital research brand Dialog (2008), bibliographer Bowker, and airline operations software provider Navtech (2007). It has also made investments in the education field, such as the degree-granting, London-based Sotheby's Institute of Art and a chain of music schools named Bach to Rock. CIG is also an investor in online search service Blucora (formerly InfoSpace).