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A Trusted Source of Advice and Service for Over 40 Years

Who We Are

We are thrilled to share that Tsongas Litigation Consulting joined IMS Consulting & Expert Services to enable us to serve clients better throughout every stage of litigation. As the only fully integrated trial services team in the industry, IMS is the leading provider of high-stakes litigation services across the full lifecycle of the litigation process. This union broadens our impact as part of a coast-to-coast network in major US markets and extends our reach worldwide with IMS locations in major UK markets.


Together, we bring multiple decades of experience, robust client relationships and diverse, experienced consultants primed to deliver best-in-industry services in the areas of expert witness selection and preparation, integrated trial strategy, jury consulting, trial graphics, and trial presentation for remote and in-person litigation needs. Equally important, our two firms, now operating as one, share similar cultures and values, including honoring all relationships and delivering quality and excellence.

The Tsongas Litigation Consulting name may be changing to IMS, but our people and passion remain the same. We are excited to build on our strong respective legacies and provide clients with top talent for any case, from first thought to finishing touches. Learn more at

Introducing our law firm
The Advantage


The Advantage

An Interactive Juror Insights Application. Gain real-time command over your jury research data with our innovative tool.

  • Instant access to participants’ feedback during mock trials, focus groups, mock arbitrations, and more

  • Immediate, actionable data that allows for deeper exploration of issues

  • Greater understanding of high-risk juror characteristics

  • Meaningful feedback on strategy and witnesses

  • Methodologically sound remote jury research results


Our Services


Case Strategy


Litigation Graphics


Shadow Juries


Witness Preparation


Opening and Closing Arguments


Post-Verdict Interviews


Mock Trials and Focus Groups


Jury Selection


Alternative Dispute Resolution

What Our Clients are Saying

We have used the Tsongas team in many of our most important cases. They offer solutions, not just observations. They provide case-specific recommendations, not just boilerplate suggestions. They work with us and our clients to develop a cogent and meaningful approach to our most challenging issues. They have become part of our trial team, not just a bolt-on accessory. I have not found a more talented group.

B. Trent Webb

Shook Hardy & Bacon, Kansas City, MO

Our Consultants

Our Consultants
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