Expert Witnesses
Financial, Forensic & Valuation
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05
Financial, Forensic & Valuation · Arbitration
Financial, forensic & valuation expert witnesses for arbitration.
Forensic accountants, valuers and financial-markets experts who quantify loss and testify with authority in the highest-value arbitrations.
✓ Ranked in the GAR 100 Expert Witness List (2025)
✓ Expert testimony delivered in 200+ arbitrations
✓ 19 named experts in financial, forensic & valuation
#10
Ranked in the GAR 100 Expert Witness List
Global Arbitration Review · Construction Arbitrations, 2025
Global Arbitration Review · Construction Arbitrations, 2025
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GAR
Recognised by Global Arbitration Review
#10
GAR 100 Expert Witness List, Construction Arbitrations (2025)
200+
Arbitrations — expert testimony delivered
600+
Experts firm-wide, 12 global offices
50+
Countries served worldwide
Appointed under the rules of ICC · LCIA · SIAC · DIAC · ADGM · HKIAC — expert testimony delivered in 200+ international arbitrations.
The Bench
Meet the experts who will testify on your matter.
When the dispute turns on the number, Masin's financial experts build the quantum, trace the funds and defend the valuation. Every expert is named, independent, and instructed directly — view their full profile and testifying experience.
01
Forensic Accounting & Audit
5 experts
Greg Johnson
Forensic accounting & audit
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Juan Jose Davidovich
Forensic accounting & audit
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Roderick (Rod) Sutton
Forensic accounting, restructuring & insolvency
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Jean-Marie van der Elst
Financial investigations
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Egor Misiura
Forensic accounting
View profile & experience →
02
Banking, Derivatives & Fraud
4 experts
Aidan Applegarth
Banking, financial services, trade & commodity
View profile & experience →
Simon M. Jaquiss
Banking, derivatives & financial fraud
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David Griffiths
Banking
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Bruce Debenham
Banking, credit risk & insolvency
View profile & experience →
03
Valuation & Economic Damages
4 experts
Marian Portero Collado
Economic damages & valuations
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Jonathan Price
Corporate finance
View profile & experience →
Govinda Singh
Hospitality valuation & advisory
View profile & experience →
Rafael Pereyra Lago
Economic & financial impact evaluation
View profile & experience →
04
Trading, Investment & Risk
6 experts
Colin Knight
Trading, financial & investment disputes
View profile & experience →
Andrew Doyle
Trading
View profile & experience →
Ausaf Abbas
Financial & investment
View profile & experience →
Diego Adler
Actuarial & financial risk analysis
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Dr. Thomas Walford
Financial
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Paul Sibenik
Cryptocurrency
View profile & experience →
+2further forensic and valuation analysts supporting quantum modelling and disclosure review.
Disputes we prove
01Forensic accounting & fraud
02Post-M&A & completion accounts
03Business & shareholder valuation
04Economic loss & damages
05Banking & derivatives
06Trading & investment
07Insolvency & restructuring
08Actuarial & risk
Why counsel instruct Masin
Independent opinion that holds under cross-examination.
01
A bench, not a business card
A named senior expert leads, supported by sub-specialists and analysts — so no issue in the reference is left uncovered.
02
Tested before the institutions
Our experts have reported and testified under the rules of DIAC, SIAC, LCIA, ICC and the ADGM across the highest-value disputes.
03
Report-ready to the standard
Opinions are drafted to IBA, CIArb and Part 35 requirements — clear, reasoned and defensible from first draft.
Reports & testimony to
✓IBA Rules on the Taking of Evidence
✓CIArb Expert Witness Protocol
✓CPR Part 35 & Practice Direction
✓The Ikarian Reefer duties to the tribunal
Deliverables
Independent expert reportsJoint statements & experts' meetingsOral testimony & cross-examinationExpert determinationEarly case assessmentRebuttal & supplementary reports