Expert Witness


Expertise alone is not enough. The best expert witnesses are able to masterfully convey their knowledge in the courtroom. IMS will help you find and secure the best-aligned expert witness for your case.

Inform the Decision-Makers

The most impactful expert witnesses engage judge and jurors and earn their trust by delivering testimony with clarity, confidence, and credibility.

As the leader in the industry, IMS has the network of relationships, plus the experience and methods, that enable us to move quickly to provide world-class experts for your case, so you can save time and be free from surprises. Contact us for more information.

You deliver. And we’re here to deliver for you.

Clients enjoy special access to the most qualified and prepared, conflict-free experts across every industry and discipline.

Our Expert Witness Process

Search Search

We scour the globe, leaving no stone unturned, and perform a uniquely designed exhaustive search to find the best available talent.

Search Vet

We dive deep to consider other witness attributes, such as disposition, litigation history, academic and industry experience, and any other characteristics pertinent to assuring the success of your trial.

Search Align

Our process allows you to focus on your case rather than on administrative concerns, while we work diligently to ensure a smooth expert engagement.

Search Prepare

IMS strategy advisors work with you and your experts to formulate the best strategies for structuring reports and trial testimony. Our jury consulting team assists with witness preparation so opinions are communicated clearly. Our graphic designers create graphics and animations, for both the report and trial, that assist witnesses with teaching fact finders. Our trial technicians seamlessly incorporate basic educational tools and utilize other techniques that assist experts during their testimony.

“I have found that using IMS provides me with a spectrum of potential industry or subject matter experts that my clients have not thought of. I have found several excellent testifying experts through IMS.”

Am Law 100 Firm

“Our expert’s findings aided us in properly evaluating the case, which in turn assisted us in reaching an agreeable settlement of the matter.”

Am Law 200 Firm

“IMS is the industry’s best.”

Intellectual Property & Brand Dilution Expert

Together We Win

Expert Witness

Our expert witness team aligns you with preeminent subject matter experts who excel at conveying their knowledge in the courtroom.

Expert Witness


What Makes Your Expert Witness the Best Witness? Social Science Research Highlights the Roles of Credibility and Influence

IMS Strategy Consultant Clint Townson, PhD discusses what social science tells us about the factors informing expert witnesses’ credibility and influence.


A Statistical Economics Expert’s Best Practices for Expert Witness Engagements – Episode 20

Dr. Charles Cowan on his role as a statistical economics expert.

Case Studies

TFT-LCD Flat Panel Antitrust Litigation

In one of the few antitrust class actions ever tried to a successful verdict, IMS worked closely with co-lead counsel Bruce Simon and Richard Heimann to define and refine trial strategy, themes, and visual presentations.

30 30 Years Experience in the Industry
43,000+ Cases Spanning Practices
99 of Am Law 100 Have Been Clients
95% of our Business Comes From Repeat Clients

Best of The Recorder

Best Of The National Law Journal

Best of The Legal Intelligencer

The National Law Review Go To Thought Leader

Best of Texas Lawyer

Work With Us

With a network of 125,000+ world-class expert witnesses, you can count on IMS to find the best match every time.