HKA strengthens its forensic accounting and commercial damages practice with two newly appointed Partners in Paris

HKA, a leading global consultancy in risk mitigation, dispute resolution, expert witness and litigation support services, announces today that Andrew Flower and Matthias Cazier-Darmois have joined the Forensic Accounting and Commercial Damages (FACD)  practice, as Partners based in the firm’s Paris office.

These two significant appointments further strengthen the firm’s capabilities in Forensic Accounting and Commercial Damages, as the team continues to grow its presence across multiple industry sectors both in the Europe, Middle East and Africa (EMEA) region and globally.

“Our FACD practice has continued to grow from strength to strength across EMEA, and indeed the globe. We are excited to have two additional strong partners joining us in Paris, one of the 5 key preferred seats for arbitration globally. Andrew and Matthias bring between them 45 years of experience on the international arbitration stage. They join Anthony Charlton in our HKA Paris office and will, together with our Partners in London and Dubai, bring huge additional capability for our clients to draw upon.”

Amanda Clack – Partner and Regional CEO, EMEA

Andrew Flower has over 30 years of experience providing expert evidence in international arbitration, both commercial and investor-state. He has provided written evidence in over 200 arbitrations conducted under the auspices of all of the major institutions, including ICC, ICDR, ICSID, DIAC, NAI, DIS, OIC and under UNCITRAL rules. Andrew has testified over 40 times before tribunals worldwide and, in so doing, has participated in witness conferencing on many occasions.

Since its inception, Andrew has been listed as a leading expert by Who’s Who Legal (WWL). He has also been recognised by WWL as one of the top ten leading expert witnesses in international arbitration in Europe. As Who’s Who Legal “Global Elite Thought Leader” in Arbitration Expert Witnesses 2023, peers and clients say:

“Mr Flower is a leading expert in the field of international arbitration”.

 “He is calm, measured and assured in his delivery of evidence”.

Andrew has a Bachelor’s Degree in History, is a Fellow of the Institute of Chartered Accountants in England and Wales and is a native English and fluent French speaker.

Andrew said: “I am delighted to be joining the team at HKA and expanding its European footprint in the disputes space. I am equally delighted to be joining so many former colleagues with whom I have worked both with and against over the years, with a view to building the pre-eminent expert disputes practice in Europe.”

View Andrew’s full expert profile here.

Matthias Cazier-Darmois has nearly 20 years of experience providing expert evidence and valuation advice in complex commercial disputes and international arbitrations.

Matthias regularly assesses damages that may arise from breaches of contracts or international treaties. He has testified in several investment and commercial arbitration proceedings, under ICSID, UNCITRAL, ICC, LCIA, SCC or CEPANI rules, and in ad-hoc arbitrations across a wide range of industries, including mining, energy, power, and telecoms.

Matthias is recognised as one of the leading arbitration expert witnesses globally and a “Thought Leader” by Who’s Who Legal.

As Who’s Who “Global Thought Leader” in Arbitration Expert Witnesses 2023, peers and clients say:

“Matthias is a tremendously smart and hard-working expert”.

“A leading figure in the field, here in France”.

“He has established a robust reputation as an expert witness in international arbitration”.

Matthias has a Master’s Degree in Finance and is a native French and fluent English speaker.

Matthias said: “I am thrilled to be part of an organisation that is focused on dispute resolution, with ambitious goals and the resources to achieve them. I am delighted to be joining a growing team of hugely talented individuals that will undoubtedly make a significant impact in the field of disputes.

View Matthias’ full expert profile here.


HKA is a leading global consultancy in risk mitigation and dispute resolution, using our multi-disciplinary expertise to provide a comprehensive set of specialist services:

  • Expert, Claims and Advisory services for the capital projects and infrastructure sector
  • Forensic Accounting and Commercial Damages services for all types of contracts, including commercial and investment treaty disputes
  • Consulting services to support companies working on US Federal Government contracts.

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 40+ offices in 18 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 buildings, industrial and manufacturing, power and utilities, resources, transportation infrastructure, technology, financial services, government contracts and non-profit.

Media contact:

NameSuzanne Rayson
TitleMarketing & Communications Director, Europe
Number+44 1928 756 500

Follow HKA on WeChat


HKA WeChat