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Expert Witness

Our Principal’s track record as an expert witness speaks for itself. He has provided invaluable insights in four completed cases, successfully helping win over $2 billion in compensation. With court appearances, depositions, many reports, surviving voir-dire challenges and a Daubert motion, Dr Marshall has the experience you require in US and UK courts.

Innovative Thinking

The outside-in perspective is essential to bring fresh approaches, whether for product ideas, writing, or strategic planning. We can help drive disruptive innovation, develop new product concepts, rejuvenate messaging, review and revamp product roadmaps, write authoritative articles and blogs, and deliver thrilling, high-energy presentations and webinars.

Analyst Relations

Whether you want to optimize your industry analyst communications, improve your placement in analyst assessments such as MQs and Waves, or enable influencers to talk knowledgably about your business, we can help. As a team of former Gartner analysts, we are the analyst experts, uniquely able to communicate your unique benefits effectively.

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Richard M Marshall, PhD

Founder and Principal

Richard Marshall has over 30 years of experience in software innovation. Before founding Concept Gap, Richard was a Gartner analyst covering mobile app design and development, where he championed the emergence of key enterprise mobile app technologies.


As an entrepreneur, Richard recognised the importance of the mobile app back in 2004 and created a company, Rapid Mobile, that delivered cross-device, highly-usable apps long before they became mainstream.  


Richard's career has encompassed everything from coding to corporate governance, and he has worked in all phases of product development from initial concept through implementation and on to sales, product management and marketing.

Since 2020 Richard has worked as an Expert Witness in Information Technology disputes, helping win over $2bn in compensation for our clients.


Communication has always been the common element: storytelling is a key factor in driving the adoption of new technology and ensuring attorneys, judges and jurors understand the matter at hand. He has lectured, written papers, articles and reports for many years. Richard holds a PhD in Computer Science from the University of Edinburgh. He lives with his wife in Edinburgh, Scotland where he also writes fiction, takes photographs and practices Parkour.

  • Medium
  • LinkedIn
  • Instagram
  • Facebook
  • Blogger
  • Amazon

Expert Witness Services for Artificial Intelligence, Data, IT, Mobile Technology and Software Disputes

Software and data are ubiquitous, with every organization now dependent on ever more complex digital infrastructure. Now AI is being infused into every product and service, increasing that complexity in ways that few truly understand, and vendors are fighting to win in ever more competitive markets. The implications for contract disputes and litigation are huge.

Expert witnesses must be able to not just understand the technical issues but explain them in a way that can be understood by lawyers, juries, and judges.

This is where our Principal, Dr Richard M. Marshall, Principal of Concept Gap Ltd, excels. With a PhD in Computer Science from the prestigious University of Edinburgh, Dr. Marshall possesses a unique talent for rapidly grasping the critical issues at the core of each matter, before effectively and clearly conveying the complex technical concepts involved. Not only does Dr. Marshall have a solid academic background, but he has also founded several successful software startups and has a remarkable repertoire of qualifications, including being an active and highly acclaimed public speaker and a former Gartner Analyst.

Dr. Marshall's track record as an expert witness speaks for itself. He has provided invaluable insights in four completed cases, successfully helping win over $2 billion in compensation. With two court appearances, three depositions, preparation of fourteen reports, surviving voir-dire challenges and a Daubert motion, Dr. Marshall has the experience you require in both U.S.A. and U.K. courts.

Trust and credibility in the legal field is so important that we are happy to provide you with references from attorneys, lawyers, and advocates who have worked with Dr. Marshall in the past, including ones on Benchmark Litigation’s list of “Top 100 Trial Lawyers,” The American Lawyer’s  "Litigator of the Week," and "Best Lawyers: Ones to Watch," in the U.S.A. and the U.K. “Legal 500 Hall of Fame.”

One of the best expert witnesses I’ve ever had the privilege to listen to in terms of knowledge of his subject and preparation of testimony.

Richard E. Gardiner, Presiding Judge,

Virginia General District Court

I prefer the evidence of Dr Marshall on this point. He has addressed the correct legal issue. Dr Marshall’s opinion was properly grounded in an examination by him of the system as delivered.
Lord Ericht, Judge of the Supreme Courts, Scotland

Areas of Expertise

Dr. Marshall has broad knowledge of Information Technology and can provide expert witness coverage for most information technology related disputes. His experience as an entrepreneur and as a Gartner Analyst provides additional experience in business management, intellectual property, and enterprise requirements. His expertise includes, but is not limited to, the following topics:

  • Artificial Intelligence

  • Blockchain and crypto

  • Cloud Infrastructure

  • Customer Relationship Management (CRM)

  • Cybersecurity

  • Data Analytics

  • Digital Resilience

  • Disaster Recovery

  • Enterprise Resource Planning (ERP)

  • Industry Analysts

  • Intellectual Property

  • Internet of Things

  • Location-based Technology

  • Machine Learning

  • Mobile Technology, Software and Hardware

  • Project Management

  • Ransomware Attacks

  • Requirements Management

  • Smartphone Apps

  • Software Architecture

  • Software Deployment

  • Software Development Methods

  • Software Development Tools

  • Software Patents

  • Trade Secret Forensics

  • User Experience

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