Corporate Investigation Consulting

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.

Expert specializing in federal compliance frameworks, enterprise cloud forensics, and low-altitude aerial mapping. Combines elite information security credentials (CISSP, CASP+) with official CMMC Certified CMMC Assessor (CCA) capabilities to deliver rigorous pre-audit gap analyses and court-admissible digital discoveries. Extensive hands-on experience designing and auditing highly secure, automated cloud environments tailored to strict federal data-handling thresholds, including active infrastructure deployment for sensitive VA (Veterans Affairs) patient ecosystems under FedRAMP High and FISMA baselines. Expert at preparing defense contractors for mandatory CMMC compliance by mapping network architectures directly to NIST SP 800-171 control sets. Available for corporate data-leak investigations, metadata spoliation analysis, federal-tier risk assessments, and high-resolution 3D accident scene photogrammetry throughout Northern New England. Operates under the state licensing framework via sponsorship with All Computer Solutions Inc.

ArcherHall provides digital forensics, eDiscovery, and cybersecurity expert services since 1997, headquartered in Sacramento, California.

Burgess Forensics has provided digital forensics, data recovery, and expert witness services since 1984, based in San Luis Obispo, California.