Autopsy - The Sleuth Kit - Autopsy is an open source graphical interface to The Sleuth Kit and other digital forensics tools.
LogikCull - Logikcull is a discovery automation platform that helps expedite and lower the cost of litigations & investigations.
Encase eDiscovery - EnCase eDiscovery helps litigation experts to establish best practices throughout the e-discovery workflow.
Everlaw - Everlaw is an eDiscovery software for litigation, document review, and analysis.
Forensic Toolkit FTK - Digital Investigations
Exterro - Exterro offer eDiscovery and legal software solutions.