John Holland, Founder & CEO
Location: 222 Andrews St., St. Paul Qtr.
Founded: 1997
Website: www.d4discovery.com

D4, headquartered in Rochester, is a leading International provider of managed data and discovery services to law firms and corporations. The company’s state-of-the-art data center and global operations are complemented by electronic discovery and litigation support offices throughout the world. D4 offers full-service capabilities with local infrastructure to support litigation, investigations, compliance and other legal matters worldwide, and helps to locate and secure electronic data for use as evidence in court cases. Depth of staff, experience and innovative technology allow the company to provide first-class performance worldwide. D4 has been recognized by Inc. Magazine as one of the fastest-growing private companies in the US for five consecutive years.