Case Study: Grant Thornton achieves up to 300 GB per hour forensic processing and streamlined e-discovery with Exterro

Global accounting tax and advisory company puts its trust in Exterro for computer forensics and e-discovery solutions

Grant Thornton’s Forensic Services (part of the global accounting, tax and advisory firm) handles complex, multilingual digital investigations across multiple international labs. Their teams struggled with slow, fragmented workflows because forensic analysis and e-discovery review ran on separate platforms, forcing time-consuming reindexing and delaying critical case decisions.

Grant Thornton implemented Exterro’s Summation integrated with its long‑used FTK, delivering a single, scalable platform for computer forensics, mobile forensics and document review accessible via a secure browser. The rollout was quick with minimal training, enabled remote collaboration across offices, and raised processing capacity to about 200–300 GB per hour, significantly speeding investigations and improving service quality.

Grant Thornton

Kursad Guney

Senior Forensic IT Specialist, Grant Thornton