• More Experts. More Access.

    Our proprietary database of over 100,000 experts expands with each search we perform.

    Whether previously disclosed or simply well-established in their field,
    we know them or know how to find them.
    Learn More
  • Every Search, Precisely Tailored

    No two searches are ever the same.

    We know how to leverage our existing relationships, wide array of research tools,
    and a healthy dose of street smarts.

    We keep digging until the perfect candidate is found.
    Read More
  • Experts, For Over A Decade

    Every matter is assigned a dedicated search specialist
    with hundreds of searches of experience.

    No matter the field, we know how to access the best talent;
    it's what we do all day, every day.
    Learn More

Unparalleled access to expert witness support
across all topics and technologies

every search for expert witnesses is free Free Searches
Every expert search.
Every time.
no fee expert witness searches
researched expert witness searches beyond the directory and database From Scratch
No tired databases.
No fixed stables.
Bespoke searches tailored to
your precise requirements.
precicely tailored expert witness searches
expert witness disclosure and report deadlines Fast Turnaround
Expedited searching without
compromised results.
expedited searches for expert witnesses
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Cahn Litigation found expert witnesses for law firm client expert witness resume solicited by litigators expert witness database referenced by litigators expert witness locator sought by litigators
  • attorney testimonial on expert witness services - Melvin Garner

    "Cahn Litigation found two highly qualified experts in a very narrow field and with an extremely tight deadline. I don't know how they did it."

    - Melvin Garner, Partner & Chair, Japan Practice, Leason Ellis LLP
  • expert witness services testimonial from litigator

    "...Cahn Litigation was able to find the perfect expert- and fact-witness for events that happened decades earlier – a truly amazing feat!"

    - Aegis J. Frumento, Co-Head, Financial Markets Group, Stern Tannenbaum & Bell, LLP
    (formerly Partner, Duane Morris LLP and Managing Director, Morgan Stanley)
  • testimonial from expert witness

    "Cahn Litigation is definitely the most professional and collegial expert witness services firm with whom I have worked."

    - Expert Witness Donald Rickert, Ph.D.
How We Search

A Smarter Search.
The Search Process.

A Smarter Search

Cahn Litigation locates expert witnesses for complex litigation across niche topics and technologies by searching smarter, and leveraging relationships to meet your exact specifications. Our ever-expanding network of over 100,000 experts is the most effective in our space, and grows with each search we perform (we’ve been in the expert-finding business for thirteen years and counting).

Litigators from large and small firms alike prefer our search capabilities to those of other search firms because referencing our expert network is just a preliminary step of our search. We utilize our expert network but never rely solely upon its established names. The results that follow are unlike those of our competitors who tend solely to call upon overused and inadequate expert witness directories. It’s telling that over 70% of expert witnesses retained by our law firm customers have been located by way of a combination of bespoke searching and networking. You get the best expert to be found, not the best expert on some list.

The Search Process

Each search begins with a brief conversation (5-10 minutes) with a search specialist to flesh out the particulars of your matter and to understand the precise role you envision for your expert. All dedicated search specialists have performed hundreds of expert searches and will pose guided questions to probe for nuanced distinctions within your specific matter. Qualification preferences as to industry and academic credentials, prior expert deposition and expert testimony experience, geographic location, hourly rate, regional accent, and the like will be discussed and our search parameters are altered accordingly.

The potential experts we screen often advance additional case-specific distinctions to further filter our search and uncover the best possible talent. Only those select few experts that meet your precise requirements are submitted as candidates for your review.

Lawyers who seak expert witnesses with prior litigation experience are able to review each expert’s litigation support history alongside associated CVs. The number of expert witness reports written and all previous instances of expert witness testimony at deposition and trial are provided for your review. Understand which parties have previously been supported by expert candidates, to whom expert opinions have been provided and to which courts expert witnesses have been disclosed.


Your review of expert witness resumes and associated biographical and topical materials is free. Interviewing candidates for retention purposes is also free. There is never any obligation to retain our experts.

Unlike TASA and other providers, we never charge administration fees. There are no retention fees associated with cases national or international in scope (i.e. patent infringement, securities, antitrust, etc.). Your client pays only for work performed by the expert you retain at the hourly rate disclosed at the time expert candidate materials are submitted for your consideration. Cases, which are local in scope (i.e. personal injury, medical malpractice, products liability, etc.), are subject to a modest initial retention fee.

Free Searches

Every expert search.
Every time.

  • Never a charge for the search.
  • No interview fees.
  • No administrative fees (TASA).
  • No non-refundable retainers.
  • No obligation to use our candidates.

It's difficult to justify billing a client for an expert witness search, when the case could settle before discovery even begins. But we understand your strategy to be proactive, and get your ducks in a row even if it's "premature" in the eyes of your client. Our FREE SEARCHES business model allows you to see which experts are available and conflict-free.

Review targeted expert witness bios, digested resumes, curricula vitae, Rule 26 disclosures, and related materials at no fee. Interview our experts without obligation to procure preliminary opinions on your case, even at the earliest stages. Cahn Litigation removes the cost associated with being prepared ahead of the curve.

From Scratch

No tired databases.
No fixed stables.
Bespoke searches tailored to your precise requirements.

We listen carefully to your requirements.

  • Geographic location.
  • Regional accent.
  • Specific academic credentials.
  • Precise commercial involvement.
  • Strong expert testimony experience.
  • Budgetary constraints.

Don’t rely on tired commercial databases or web searches, which too often yield professionals with imprecise understanding or inexact experience. Our expert searches are driven by the unique specifications of your matter, yielding talent with unequivocal command of the substantive issues and the capability of providing the targeted testimony required to effectively advocate for your client.

Our savvy, dedicated researchers leverage our existing relationships, wide array of research tools, and a bit of street smarts. We relentlessly comb the landscape for the handful of candidates that most closely match your specifications. We scrutinize your list of qualifications, carefully examine expert CVs, and inquire as to Daubert and Frye issues to present conflict-free candidates for you to interview... all at no cost.

Fast Turnaround

Expedited searching without compromised results.

  • Your schedule is our schedule.
  • Expedited searches available.
  • Streamlined contracting process.
  • Digested CVs available for faster analysis.
  • Rolling delivery schedule.

Expedited searches, dedicated search professionals, and a flexible contracting process help to complete your search on time, no matter how tight your deadline.

We monitor incoming email and search requests 365 days a year. We're prepared to help you meet your most challenging court deadlines.

Have more time? We can provide a greater depth of candidates and strategically valuable information on the subject matter landscape to help you better analyze your case and better serve your client.


Litigators - Find an Expert Witness

Access the most extensive expert witness network available, trusted by large and small law firms alike.

Provide a brief overview of the expert qualifications sought and underlying claims to be supported. We will review and contact you to ensure access to the most appropriate expert biographies.

All expert witness requests are supported by dedicated search specialists who have previously conducted hundreds of customized expert witness searches.

Experts - Submit Credentials

If you’re an experienced expert witness or consultant, we want to hear from you.

You can increase your visibility for upcoming projects by submitting your credentials and areas of expertise to: credentials@cahnlitigation.com.

As available, be sure to include the following:

  • Your current CV for litigation support
  • Your current consulting rates or rate sheet
  • Your Rule 26 list or litigation support history
  • A list of your current publications
  • A list of attorney recommendations
  • A synopsis of your successes

We look forward to working with the best and the brightest across all technologies and fields of study.

Recent Posts

Challenges to Class Action Certification for Toxic Tort and Property Damage Cases

by Expert Witness Randy D. Horsak, PE
Toxic Tort Expert Witness Collecting Samples for Class Action November 12, 2018

Expert Randy D. Horsak presents an overview of several Daubert-related issues as they relate to the development and presenting of engineering and scientific evidence by an expert witness in a court of law for a class action lawsuit. Federal and State Courts have a wide spectrum of rulings with respect to the conclusion that Daubert applies or does not apply to expert testimony at the certification stage of a class action lawsuit. In some cases, the court may require a complete, conclusive Daubert inquiry, whereas in other cases the court may require only a limited, focused Daubert inquiry. Importantly, Daubert challenges cut both ways, and may be used by both the Plaintiffs and Defendants to their benefit. Typically, however, Daubert inquiries tend to benefit the Defendants in class action lawsuits. This expert’s commentary is based on actual court cases and other information.

Read More

The United States Court of Appeals for the Federal Circuit Finds Settlement Negotiations are not Protected by a Settlement Negotiation Privilege

by Damages Expert Witnesses Scott D. Hampton, James T. Hosmer, and Karen H. Romrell
damage experts settlement agreement June 5, 2017

Damages Expert Witnesses Scott D. Hampton, James T. Hosmer, and Karen H. Romrell explore the discoverability of settlement negotiations and the reasonable royalty calculations therein, reviewing the impact of In re MSTG and other recent cases. Such discoverable evidence may underscore a patent’s commercial value or have Daubert challenge implications. Attorneys should be careful when considering whether to expose its damages experts to settlement negotiations.

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Selective Serotonin Reuptake Inhibitors (SSRIs) and Birth Defects: An Explanation of Pharmacological Plausibility

by Dr. David Gortler, neuropharmacology drug expert and drug safety expert
SSRI antidepressant medications - drug safety expert warning September 26, 2016

Selective Serotonin Reuptake Inhibitors (SSRIs) have been causally linked to a wide variety of birth defects, including behavioral and cognitive defects, and even Autism using the FDA’s AERS database. Neuropharmacology drug expert and drug safety expert Dr. David Gortler provides an overview of the associated pharmacological effects and advises that women should stop taking SSRIs well in advance of a potential pregnancy to prevent the risk of autism and physical deformations.

Read More

Liar Buyer Fraud, and How to Curb It

by Expert Witness Markus Jakobsson, Hossein Siadati, Mayank Dhiman
Expert Witness discussion on e-commerce fraud, anti-fraud technology and techniques June 21, 2016

Expert Witness Markus Jakobsson, Hossein Siadati and Mayank Dhiman describe a common but poorly known type of fraud – so-called liar buyer fraud – and explain why traditional anti-fraud technology has failed to curb this problem. They then introduce a counter-intuitive technique based on user interface modification to address liar-buyer fraud, and report result of experiments supporting that their technique has the potential of dramatically reducing fraud losses. They used a combination of role playing and questionnaires to determine the behavior and opinions of about 1700 subjects, and found that their proposed technique results in a statistically significant reduction of fraud rates for both men and women in an experimental setting. Their approach has not yet been tested on real e-commerce traffic, but appears sufficiently promising to do that. Their findings also support that men are more willing to lie and defraud than women are; but maybe more interestingly, their analysis shows that the technique they introduce make men as honest as women.

Read More
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