Expert Witness Providers
An expert witness is a specialist who gives an opinion in a legal case, in a report, a deposition or testimony at trial, based on their professional expertise. Lawyers also hire experts to advise them behind the scenes. Expert witness firms and directories help lawyers find the right one.
Here you’ll find the firms and directories in our directory that do this. Which one suits you depends mainly on the field of expertise and the jurisdiction of your case.
- Enco InsightsLondon, UK
Enco Insights is a London expert network for the energy and resources sector, founded in 2023 within HC Group, an energy executive search firm.
Expert CallsExpert Witness (Law)View profile - Expert Witness DoctorsAustin, TX, USA
Expert Witness Doctors provides medical expert witness services to the legal and insurance communities. They are based out of Austin, Texas, operating under the registered entity Medical Expert Witness PLLC.
Expert Witness (Law)View profile - Expert Witness InstituteRedhill, UK
The Expert Witness Institute (EWI) is a non-profit membership and professional body for expert witnesses in the UK, not a commercial expert witness placement firm. It was incorporated in 1997, founded by a group of senior legal figures, including judges and barristers.
Expert Witness (Law)Expert CommunityView profile - ExpertConnectNew York, USA
ExpertConnect is a New York-based expert network founded in 2009, offering expert calls, surveys, and legal expert witness services, rooted in American Medical Forensic Specialists' decades of legal expertise.
Expert CallsExpert Witness (Law)B2B SurveysView profile - ExpertLinkDallas, TX, USA
ExpertLink is an expert witness firm based in Dallas, Texas, providing services for Intellectual Property, ITC litigation, Commercial Business Litigation, Economics, and Finance.
Expert Witness (Law)View profile - ExpertsDirectSydney, Australia
ExpertsDirect is an expert witness services firm based in Sydney, Australia, with an additional office in Singapore, serving clients across Australasia.
Expert Witness (Law)View profile - ForensisGroupPasadena, CA, USA
ForensisGroup is one of the larger expert witness services providers, established in 1991 and covering multiple disciplines with over three decades of experience.
Expert Witness (Law)View profile - GLGNew York, USA
The GLG (Gerson Lehrman Group) expert network was founded in 1998 and is today the world's largest expert network.
Expert CallsExpert Witness (Law)Public Transcript LibraryB2B SurveysView profile - GuidepointNew York, USA
Guidepoint is one of the largest expert networks, now repositioned as an AI-powered research platform with 2M+ experts, founded in 2003 by Albert Sebag.
Expert CallsExpert Witness (Law)Public Transcript LibraryB2B SurveysView profile - IMS Legal StrategiesPensacola, FL, USA
IMS Legal Strategies is a Pensacola expert witness and litigation consulting firm, founded in 1992, with work on 45,000+ cases and 6,500+ trials.
Expert Witness (Law)View profile - IntellexCincinnati, OH, USA
Intellex is an expert network and expert witness services provider based in Cincinnati, Ohio. Intellex itself launched in 2021 as a sister company to BelFlex Staffing (founded 1989), with roots tracing back to the 2003 launch of YourEncore.
Expert CallsExpert Witness (Law)View profile - JurisProCalifornia, USA
JurisPro is a free, DIY directory where expert witnesses create profiles to market themselves directly to attorneys, launched in 1999.
Expert Witness (Law)Expert CommunityView profile - Law.com (ALMExperts)New York, USA
Law.com (formerly ALMExperts) is a DIY marketplace for expert witnesses to promote themselves, based in New York. It operates under Centellic, the unified brand formed in May 2025 following the merger of ALM (Law.com's original owner) and Law Business Research (LBR).
Expert Witness (Law)Expert CommunityView profile - Round Table GroupChicago, IL, USA
Round Table Group is a Chicago expert witness firm founded in 1994, connecting attorneys with 40,000+ affiliated expert witnesses nationwide.
Expert Witness (Law)View profile - SaponaroMentor, OH, USA
Saponaro, Inc. is a boutique expert witness services (EWS) firm based in Mentor, Ohio, with over 40 years of experience providing expert witnesses, case evaluation, and litigation support.
Expert Witness (Law)View profile - The Expert InstituteNew York, NY, USA
The Expert Institute is a leading expert witness platform for law firms, backed by Levine Leichtman, with 380+ employees and $60M raised.
Expert Witness (Law)View profile - Triangulate KnowledgeSydney, Australia
Triangulate Knowledge is an expert network headquartered in Sydney, Australia. The company was founded in 2020 by the former MD for Australia at expert network GLG.
Expert CallsExpert Witness (Law)B2B SurveysView profile - UnisearchSydney, Australia
Unisearch is an expert witness service provider headquartered in Australia, operated by UNSW (University of New South Wales). Established in 1959, it says it was the first in Australia to recognize the value of bridging technical knowledge with practical application.
Expert Witness (Law)View profile
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How do you choose an expert witness provider?
Do they cover your field and your jurisdiction? Check which specialties they cover, such as medical, engineering, financial or intellectual property, and where their experts are based and qualified to testify. Court rules and expectations differ by country.
How do they vet experts and check for conflicts? Ask what they check about an expert’s qualifications and testimony record, including whether their opinions have been challenged or excluded in earlier cases. Also ask how they check for conflicts with the other parties before you disclose anything.
How are fees set? Experts usually bill by the hour, with different rates for report writing, depositions and trial testimony. Ask whether the firm adds its own fee on top, and whether the expert pays to be listed.
FAQ
A qualified professional who gives an independent opinion in a legal case, in a written report, at a deposition, or in court. Some experts only advise the legal team and never testify.
An expert network arranges paid conversations with experts, mostly for business research or due diligence. An expert witness firm refers experts to lawyers for litigation, where reports, testimony, and conflict checks matter. To compare networks that arrange research calls, see our Expert Calls hub.
Yes. We keep profiles of closed or acquired companies for reference, and each is marked inactive.
No. Inex One matches projects with expert networks and survey providers for market research and due diligence, not with expert witnesses for legal cases. If you need research calls instead, get started with Inex One and our algorithm will match your project with the right network.