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Expert Witness Services

With one of the most comprehensive expert networks available, we can support you with expert advice and expert witness support, both pre-litigation and once the dispute has commenced.

Our innovative model allows us to provide strategy advice, source the right expert to discuss each respective issue, and when necessary support that expert in the delivery of the report and with trial prep. 

We also support the legal community with content. Our Insights blog helps you to identify areas where we see potential new litigation.


Litigation is a function of opacity (of contract) and losses. We are experts on finance and risk, and we use that knowledge to inform the legal community of potential litigation hotspots. If you are a legal professional or litigator, connect here for access to our forum.

What we do? Case Advice & Support

Comprehensive case support. We evaluate the commercial issues set out the factual landscape from disclosure to expert evidence, and deliver the right individuals, and where needed team, to navigate the often complex universe of financial services.

What clients say

Acumen made sure they understood what expert evidence we required, suggested different potential types of expert who could approach the issues from different perspectives and helped us identify the right candidate.

Managing Partner, Baker and McKenzie

Acumen provided excellent advice in a timely and effective manner and were a pleasure to work with.

Founding Partner, CYK

We were involved in an expansive dispute covering a complex web of overlapping issues including, ISDA documentation, collateral management, exotic derivatives, illiquid assets, multiple trading systems and prime brokerage for a portfolio of thousands of transactions covering many years. 

Acumen assembled a first class team of over ten banking consultants with comprehensive direct experience across this gamut of banking specialities, who supported us with disclosure, and provided us with authoritative and astute analysis and several expert reports covering the broad spectrum of issues. We were delighted with their work.

Client in Multi-Billion Pound Claim

What clients say

Acumen sourced an accomplished expert, who produced two top class reports and gave clear, well-reasoned evidence at trial.

Managing Partner, Slaughter and May

We were struggling to find an expert on a niche area within a short timeframe and Acumen were able to do so quickly and efficiently. They managed the process smoothly, providing helpful assistance to the expert in the structure and preparation of the report.

Managing Partner, Baker and McKenzie

Acumen have repeatedly delivered excellent expert evidence, in esoteric areas, sometimes at short notice and at a very reasonable cost.

Senior Associate, Global Law Firm

Acumen provided a high quality expert in a difficult field. The work produced was very good and key deadlines were met.

Senior Associate, Slaughter and May

What we do? Expert Evidence

We integrate experts from our broad pool of vetted professionals and where needed we source experts from the marketplace using proprietary tools and technology.  

Once the right expert is onboarded, they are comprehensively supported, from report writing to trial prep.

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