Dispute Expert Witness
Lawyers, in-house counsel, and clients around the world rely on HKA’s expert witnesses to deliver clarity, credibility, and strategic insight in the most complex disputes.
From expert testimony and determination to settlement negotiations, we anticipate, analyse, and assist our clients in resolving forensic accounting, economic damages, valuation, construction, and technical matters with precision.
Trusted globally. Proven under pressure.
Our expert witnesses are renowned for their authority and credibility, demonstrated in complex, high-value cases before courts and tribunals across the globe.
HKA’s unmatched breadth and depth of expertise allow us to match the right expert to your brief – regardless of industry, location, language, jurisdiction, or arbitral centre.
Our dispute expert witness services
We deploy many of the world’s foremost experts across these core areas:
- Commercial Damages & Valuation
Our specialists apply rigorous analytical methods to assess commercial and economic damages, insurance claims, and valuations of businesses, shares, and other assets. - Digital Forensics
Our expertise in forensic data collection, analysis, search, and preservation has been decisive in cases involving misappropriation of trade secrets, fraud, breach of contract, and business interruption. - Engineering & Construction Disputes
HKA’s experts are the world’s leading specialists in delay, disruption, and quantum analysis, with deep experience on global megaprojects — recognised by Lexology as the top-ranked construction expert team for eight consecutive years. - Forensic Accounting & Investigations
Our experts support corporate counsel, boards, audit committees, government entities, compliance officers, and external counsel in navigating financial complexity related to fraud, accounting irregularities, misappropriation, sanctions, and regulatory breaches. - Intellectual Property (IP) & Patents
Our IP experts have delivered compelling testimony in major trials involving patent infringement, misappropriation, trademarks, copyright, trade secrets, FRAND, and SEPs — across sectors from telecoms and tech to entertainment and gaming. - Forensic Engineering, Architectural & Technical Expertise
With hundreds of subject-matter experts and over 500 specialisms across our global network, we deliver tailored expertise across sectors including buildings, transport infrastructure, energy, aviation and space, natural resources, manufacturing, and climate and environment.
Why HKA
Great expert witnesses are more than technical authorities – they are clear communicators, strategic thinkers, and a credible presence under cross-examination. HKA experts are carefully selected for their subject-matter expertise, courtroom composure, and ability to distil complexity into persuasive, defensible testimony.
We provide comprehensive support throughout the dispute lifecycle – from early-stage strategy and independent opinion to expert reports, rebuttals, and oral testimony.
As an independent firm with global reach, we offer:
- Conflict-free expertise – Experts screened for independence and objectivity
- Tailored support – Teams matched to the specific needs of each case
- Strategic insight – Advisors who help shape case strategy, not just respond to it
- Proven performance – Experts recognised by Lexology, Global Arbitration Review (GAR), IAM Patent 1000 and Strategy 300, and the Academy of Experts
How we can help
Proven in arbitral and legal settings, HKA’s specialist expertise is recognised worldwide.
Our experts combine deep subject knowledge with the ability to communicate clearly and persuasively — in reports, rebuttals, and oral testimony.
We deliver impartial and incisive analysis that brings clarity to the most intricate disputes — helping tribunals and courts reach fair, informed decisions.
With over 130 experts ranked in the Lexology Index across 13 practice areas, HKA ranks 3rd in the GAR 100 Expert Witness Power Index. Our experts are also recognised by IAM Strategy 300, IAM Patents 1000, and the Academy of Experts — the largest accredited corporate provider of expert witnesses in construction.
HKA experts also contribute to leading industry publications, lecture at universities, and are involved in landmark cases recognised by Global Investigations Review (GIR).
Our experts combine deep subject knowledge with the ability to communicate clearly and persuasively — in reports, rebuttals, and oral testimony.
We deliver impartial and incisive analysis that brings clarity to the most intricate disputes — helping tribunals and courts reach fair, informed decisions.
With over 130 experts ranked in the Lexology Index across 13 practice areas, HKA ranks 3rd in the GAR 100 Expert Witness Power Index. Our experts are also recognised by IAM Strategy 300, IAM Patents 1000, and the Academy of Experts — the largest accredited corporate provider of expert witnesses in construction.
HKA experts also contribute to leading industry publications, lecture at universities, and are involved in landmark cases recognised by Global Investigations Review (GIR).
