Clearlake Capital Group has agreed to sell Solutionary, a managed security services provider, to Nippon Telegraph & Telephone (NYSE: NTT) in an all-cash transaction. The sale is expected to close in the third quarter. Based in Nebraska, Solutionary helps protect traditional and virtual IT infrastructures, applications, networks, cloud and mobile environments. Its services are used by more than 600 clients in a wide range of industries, including financial services and healthcare. Clearlake recapitalized the company in November 2011.