Custom Expert Witness Services

IMS’s custom expert witness team can quickly locate niche subject matter expertise, whether that be fluid dynamics, forensic linguistics, or even the rules of the International Skating Union. The custom sourcing process begins with a search far more sophisticated than keyword matching, enabling us to identify experts with domain precision. Experts must also apply this relevant experience across various court, arbitration, or regulatory venues, providing credible evidence wherever the matter unfolds.

IMS’s custom search process follows a rigorous three-stage model: Search → Vet → Align.

• Search: Our team, aided by proprietary AI technology, conducts a comprehensive search across our database and networks to uncover candidates whose expertise aligns with your specific case. 

• Vet: Candidates undergo a screening process that evaluates their litigation experience, strategic fit to your case, and presentation skills. 

• Align: Once an expert is selected, you are assigned a dedicated engagement manager to ensure coordination, manage logistics, communication, and deadlines from intake to deposition and trial.

IMS is a pioneer of the executive-search style methodology of pairing attorneys with standout subject-matter experts across any and all specialties. From antitrust economics to pharmaceutical manufacturing, and from cybersecurity to construction engineering, our global network truly spans every imaginable technical and business domain. 

With on-demand expert witness searches, top litigators and corporate legal teams rely on IMS to consistently deliver credentialed, independent experts who can present compelling testimony in complex litigation.  

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Complex litigation requires highly trained and specialized subject matter experts with expertise on niche issues, making early retention critical to allow sufficient time for sourcing, vetting, reviewing records, and expert preparation. IMS manages all aspects of this timeline, working retroactively from scheduling orders and disclosure deadlines to ensure your expert is fully ready for deposition and trial.

Engaging an expert witness during pre-suit investigation or early discovery enables counsel to evaluate liability, causation, and damages with subject-matter precision, refine case strategy by testing assumptions and identifying evidence gaps, and preserve flexibility for mediation, settlement, or trial testimony.

Read real experiences of IMS clients and how they retained a custom expert witness from IMS here.  

IMS’s custom expert witness services are designed to quickly fulfill unique and complex client requests. When a hard-to-find expert is needed for a high-stakes dispute, IMS employs a dedicated team to find the perfect match. We provide a more reliable solution than seeking experts independently, because each expert is rigorously vetted—not only on subject matter expertise, but also on credibility and communication skills. This reduces risk in court and saves time for strategic trial preparation. Unlike traditional expert witness directories, IMS offers comprehensive engagement support throughout the case lifecycle.

Click here for more frequently asked questions about our expert witness services.