HKA moves into the top five of the GAR 100 Expert Witness Power Index

HKA, a leading global consultancy in risk mitigation, dispute resolution, expert witness and litigation support services, is thrilled to enter the top five of the GAR 100 Expert Witness Firms’ Power Index.

One of the top arbitration expert witness firms

The firm has risen three places in the top arbitration expert witness firms, from eighth to fifth, with the highest percentage change of any firm listed in the top spots, and their total claim value increasing from US$9.7 billion to US$25.9 billion.

The Power Index also highlighted HKA’s performance in disaggregated hearings, with a total of 128, placing the firm second in this year’s measure. It also remained strong in its core service offerings with construction-related hearings, coming second overall. HKA also ranked fifth in the number of its experts involved in non-construction related hearings, which recognises the firm’s growing expertise in forensic accounting and commercial damages.

In GAR’s announcement of the 2023 results (subscription required), the independent research organisation noted HKA’s year-on-year improvement “must at some point start challenging for a top three spot”. The article also noted the firm’s improving performance in the number of expert witnesses recognised in Who’s Who Legal’s independent analysis.

I am extremely proud of the excellent work our experts and their teams deliver for our clients in arbitrations throughout the world. Our performance in the latest GAR 100 Expert Witness Power Index reflects our colleagues’ commitment to our firm’s core mission: to deliver the best possible outcome for our clients every time. We simply wouldn’t be able to achieve this outcome without ensuring our clients are thrilled with our work.
“Our rise through the ranks of the GAR 100 Expert Witness Power Index, since our 2018 debut in 19th position, is a further testament to the growing reputation of our experts’ ability to deliver fair, robust and credible reports and testimony in both construction and non-construction disputes.

Renny Borhan, Partner and Chief Operating Officer at HKA

About HKA

HKA is one of the top expert witness firms in risk mitigation and dispute resolution, using our multi-disciplinary expertise to provide a comprehensive set of specialist services:

Headquartered in the UK, HKA brings a proud record of excellent service and high achievement to bear on today’s challenges. As trusted independent consultants, experts and advisers, we help clients manage disputes, risk and uncertainty on complex contracts and challenging projects.

We work with government agencies, local authorities, contractors, legal firms, and other professional service providers, as well as owners and operators, financial institutions and insurers. Clients have access to leaders and problem-solvers who decode complexity through collaborative working and innovative thinking, making the best possible outcomes a reality for our clients, every time.

As well as more than 500 expert witnesses, HKA now has in excess of 500 advisors and consultants – across 45+ offices in 17 countries – with the skills and experience that are essential to get to the heart of even the most complex issues. Our people have vast first-hand experience spanning all major industries and the world’s most complex megaprojects, as well as an international track record of achieving successful outcomes.

HKA’s global portfolio includes some of the world’s largest and most prestigious commissions across a wide range of industries including aerospace and defenceconstruction and engineering, energy and natural resources, environment and climate change, financial services, healthcare and life sciences, industrial and manufacturing, marine and shipping, real estate and tourism, sports and entertainment, and technology, media and telecomms.

For more information about HKA, visit and connect with us on LinkedIn, Twitter (@HKAGlobal) and Facebook.

Media contact

NameLaura Whyte
TitleGlobal PR and Digital Communications Manager
Number+44 7514 822186


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