D4 is a leading provider of managed data and discovery services to law firms and corporations. D4 offers full-service capabilities with local infrastructure to support litigation, investigations, compliance and other legal matters. The company’s state-of-the-art data centers and global operations are complemented by electronic discovery, computer forensics and document review offices throughout the US, China and the UK. Depth of staff, experience and innovative technology allow the company to provide first-class performance worldwide. D4 was one of the first providers to offer an eDiscovery Managed Services solution, and continues to lead the field in innovation. D4 became part of Special Counsel and the Adecco Group in 2016, enhancing D4’s offerings with Managed Document Review and streamlined access to legal staffing. D4 has been recognized by
Inc. Magazine as one of the fastest-growing private companies in the US, and is a six-time Inc. 500/5000 honoree.


Data Centers

Rochester, New York

Dawn Lockwood
(585) 360-1933

RelativityOne - UK

Dawn Lockwood
(585) 360-1933

Shanghai, China

Tom Groom

RelativityOne Certified Partner

Partner Since 2008

Relativity Certifications

Relativity Certified Administrator (19)
RelativityOne Certified Pro (2)
Relativity Certified Sales Professional (1)
Relativity Assisted Review Specialist (2)
Relativity Certified User (21)
Relativity Infrastructure Specialist (3)
Relativity Analytics Specialist (5)
Relativity Experts (2)
Relativity Masters (1)

Used Relativity to pinpoint a single Chinese character within hundreds of thousands of WeChat messages