Private equity firm Infinity Group recently announced sale of its software company Tegrity to McGraw-Hill Education, a division of The McGraw-Hill Companies, Inc., one of the largest publishers of educational books in the world. Earlier in the year, also after a decade long ownership, Infinity Group, the major shareholder in Orsus, led the sale of the company to Nice. The value of the holdings of Infinity and its affiliates in Tegrity and Orsus exceeded $20 million. The Tegrity sale is Infinity's fourth exit this year, following Orsus, Futuragene, and Teledata. Infinity was founded by the IDB Holding Corp. Ltd and the China Development Bank.