Trade Secret Litigation Expert Witnesses: Who You Need and Why
Trade secret disputes under the Defend Trade Secrets Act (DTSA) and state Uniform Trade Secrets Act (UTSA) statutes have surged past 1,300 federal filings annually, with damages awards frequently reaching eight and nine figures. Expert testimony is often the decisive factor—courts increasingly scrutinize the methodology behind damages calculations, the technical basis for misappropriation claims, and whether the trade secret holder took "reasonable measures" to protect its information.
Types of Expert Witnesses in Trade Secret Cases
- Damages Economists
- Quantify lost profits, unjust enrichment, and reasonable royalties. Firms like Charles River Associates, FTI Consulting, NERA, and Bates White field economists who have testified in hundreds of IP matters. Apportionment—breaking out the value attributable to each specific trade secret—is a growing area of judicial focus.
- Technical / Source Code Experts
- Conduct source code comparisons, reverse-engineering analyses, and technical similarity assessments. Critical in software trade secret cases where the question is whether the defendant actually used the protected information.
- Digital Forensics Specialists
- Trace data exfiltration, reconstruct deletion timelines, and authenticate electronic evidence. These experts establish the factual chain of how trade secrets left the company.
- Reasonable Measures / Information Security Experts
- Assess whether the plaintiff took sufficient steps to maintain secrecy—a threshold requirement for trade secret protection. Evaluate access controls, NDAs, physical security, and data classification practices.
- Industry-Specific Technical Experts
- Provide domain expertise in the specific technology at issue, from chemical formulations and manufacturing processes to algorithms and customer data compilations.
Daubert Challenges and Expert Admissibility
Trade secret damages experts face heightened scrutiny under Daubert v. Merrell Dow. Courts have excluded expert testimony for failing to apportion damages to specific trade secrets, relying on unsupported assumptions about market share, or using litigation-driven methodologies rather than real-world licensing comparables. Engaging experts early—before discovery deadlines—allows them to shape document requests and deposition questioning around the damages theory.
Market Landscape
| Expert Category | Typical Engagement | Key Firms |
|---|---|---|
| Economic Damages | Lost profits, royalties, unjust enrichment | CRA, FTI, NERA, Analysis Group, Bates White |
| Software / Source Code | Code comparison, similarity analysis | Eureka Software, Quandary Peak Research |
| Digital Forensics | Data exfiltration, evidence preservation | J.S. Held, Stroz Friedberg, Global Data Risk |
| Referral Networks | Expert matching and vetting | ForensisGroup, SEAK, Cahn Litigation |