Semantra, an enterprise search company, has secured $3.8 million in equity funding from current investor CPMG, Inc. The investment will be used for product development and building out Semantra’s go-to-market partnerships. CPMG, Inc. invested $2.3 million in September 2006, bringing its total investment in Semantra to over $6 million. Semantra’s software solution allows users worldwide to retrieve data from their corporate databases by entering inquiries in a familiar search box, using common, everyday language. The solution combines business intelligence and enterprise search.