e-Forensics Inc.

David Greetham is an internationally recognized Digital Forensics, Electronic Evidence, eDiscovery, and Information Governance Expert Witness with more than 35 years of experience. Mr. Greetham is frequently engaged as a neutral expert, providing independent analysis and opinions trusted by all parties in complex digital forensics, Information governance and eDiscovery matters. Unlike many experts who focus on a single dimension of digital evidence, David provides comprehensive expertise spanning the full litigation lifecycle — from data identification and preservation through analysis, review, and testimony. He holds certifications as a CFE, CEDS, and CIGO, earned an MSc from Cranfield University, and received the Lifetime Achievement Award in Digital Forensics. He has served as VP at Level Legal and Ricoh Americas, developed Remlox™ (deployed in 39 countries), and provided expert testimony in commercial, criminal, IP, employment, trade secret, and government matters — including the landmark Coleman Holdings v. Morgan Stanley case.

Corporate Investigation Consulting is a Dallas team of former federal agents offering digital forensics, forensic accounting, and corporate investigations.

Vestige Digital Investigations was established in 2004 and is headquartered in Medina, Ohio. The firm specializes in electronic evidence preservation, analysis, and expert testimony, and has testified in more than 70 matters involving digital forensics and cybersecurity.

Cornerstone Discovery is a litigation support and digital forensics firm based at the Navy Yard in Philadelphia. Voted number one in Digital Forensics and Corporate Investigations by the Legal Intelligencer two years running, the firm's examiners bring over 30 years of combined experience uncovering digital evidence.