15 BEST EXPERT WITNESS COMPANIES: FIND & HIRE TESTIMONY CONSULTANTS

The 15 best expert witness companies are search directory and consulting firms, known for matching legal teams to credentialed professionals across a wide range of disciplines—from finance and engineering to healthcare and IP disputes. And of course it’s clear that the best expert witness companies help streamline the hiring process and improve case strategy with vetted, credible experts.

1. GLG (Gerson Lehrman Group) – World’s largest expert network with ~1.2 million vetted professionals across industries.

2. TASA Group – Long-standing best expert witness companies firm (since 1956), covering 11,000+ expert categories including IP, engineering, and medical cases.

3. ForensisGroup – Known for deep vetting and swift expert placement across science, finance, engineering, and healthcare.

4. IMS ExpertServices (IMS Legal Strategies) – Focused on niche best expert witness companies expertise for complex litigation and trial support.

5. Round Table Group – “Experts on Experts” specialists with decades of customized searches and no-fee-until-hire policy.

6. SEAK, Inc. – Offers both best expert witness companies search and training for SMEs across all major specialties.

7. Rubin Anders Scientific – Technical and scientific fields, known for sourcing highly specialized best expert witness companies partners.

8. Thomson Reuters Expert Witness Services – Integrates legal research and expert sourcing via a vast database .

9. Expert Institute – Tech-driven firm with millions of expert profiles and fast matching based on case needs.

10. Cahn Litigation Services – Offers best expert witness companies matching with no fee until expert is retained; 100K+ expert network.

11. Expert Witness Locators – Custom global searches, flat-fee engagement model without hidden markups.

12. Teklicon – Rigorous best expert witness companies vetting using background and litigation history checks for credibility assurance.

13. Expert Witness Directory (ALMExperts/Experts.com) – Extensive listings across many fields with detailed profiles.

14. CRA International (Charles River Associates) – Global best expert witness companies firm specializing in economic, financial, and strategic consulting.

15. NERA Economic Consulting – Pioneering economic analysis applied to litigation, regulation, valuation, and damages.

How They Compare

• Network Size: GLG and Round Table Group lead with expansive pools.

• Vetting Quality: Noted best expert witness companies like Expert Institute, Teklicon, ForensisGroup, and IMS emphasize extensive credential verification.

• Pricing Models: Round Table, Cahn, and Expert Locators offer no upfront fees until an expert is hired.

Choosing the right best expert witness companies firm depends on case complexity, the desired field of expertise, and cost structure preferences. Most legal teams use a combination of several firms to secure the best-fit expert for their needs.