D4 is a leading national provider of eDiscovery, computer forensics and litigation support services to Law firms and corporations. D4 was one of the first providers to offer an eDiscovery Managed Services solution, eNtrust, which launched in 2011. D4 has been instrumental in helping customers realize up to a 70 percent cost reduction over previous vendors. The company¹s state-of-the-art data center operations in Rochester are complemented by eDiscovery and litigation support offices throughout the U.S.