Cognizant started in 1994, as Dun & Bradstreet Satyam Software - the in-house technology development center for the Dun & Bradstreet Corporation (D&B) and its operating units. Initially a joint venture between Dun & Bradstreet (76%) and Satyam Computer Services Ltd. (24%), it soon became a 100% subsidiary of D&B Corp. In 1996, the company became a division of the Cognizant Corporation, after the split-up of Dun & Bradstreet Corporation. In June 1998, Cognizant Corporation was again split into independent companies, and Cognizant Technology Solutions was formed as a division of IMS Health, a provider of information solutions to the pharmaceutical and healthcare industries. The same year, the company completed its initial public offering and was listed on the NASDAQ. In November 2002, IMS Health divested its majority interest in Cognizant through a tax-free split-off.'