Jonathan Humphrey


Global Elite Thought Leader - Arbitration 2021
Arbitration 2021
Australia 2021: Arbitration - Construction - Quantum and Delay - Financial Advisory and Valuation - Quantum of Damages
Construction 2021
Litigation 2020
Consulting Experts 2020: Construction - Quantum and Delay & Financial Advisory and Valuation - Quantum of Damages
Expert Information
Qualifications BSc (Hons) Economics
FCA, Chartered Accountant
Professional Memberships Fellow, Institute of Chartered Accountants in England and Wales
Services Quantum, Forensic Accounting & Commercial Damages
Sectors Buildings, Transportation Infrastructure, Industrial & Manufacturing, Power & Utilities, Resources, Technology, Financial
Expert Highlights
  • Chartered Accountant and fellow of the Institute of Chartered Accountants in England and Wales.
  • Testified in cases with disputed values up to US$600 million.
  • Proven as a credible witness under cross-examination, including concurrent evidence.
  • Regularly appointed as the expert on matters in Asia, Australasia, Europe and the Middle East.
  • Specialises in forensic accounting and the quantification of damages.
  • Regularly recognised as a leading expert by Who’s Who Legal.

Jonathan is a Chartered Accountant with over 20 years of experience in forensic accounting. He has been appointed as an expert more than 50 times in commercial and investment treaty cases, dealing with matters of damages and quantum.

The “exceptional” Jonathan Humphrey is applauded for his “ability to quickly digest very large amounts of complex financial data”.

WWL Construction Expert Witnesses 2020

Jonathan has acted as an expert witness in multiple forums, including international arbitration under ICC, UNCITRAL, LCIA, SIAC, DIAC and HKIAC rules, court litigation and mediation. He has given oral evidence in commercial and investment treaty cases with disputed values of up to US$600 million and has also delivered concurrent evidence (hot-tubbing).

Jonathan began his career at one of the big four accounting firms where he worked in their forensic accounting group for eight years before working for expert services firms for 12 years. He has experience in Europe, Africa, the Middle East, Asia and Australasia, working in a myriad of sectors, including construction, financial services, IT and telecoms, media, natural resources, oil and gas, power and utilities, pharmaceutical and retail.

Jonathan’s expert commissions cover a range of issues including the quantification of lost profits, business valuations and the assessment of damages relating to class actions, professional negligence, insurance claims, business interruption and post-acquisition disputes. His forensic accounting expertise includes fraud, forensic, intellectual property and regulatory investigations.

Jonathan holds a degree in economics and is a fellow of the Institute of Chartered Accountants in England and Wales. He is regularly recognised by Who’s Who Legal for his experience in the quantum of damages, arbitration, construction and insurance matters.

Jonathan Humphrey comes highly esteemed for his “creativity and innovative approach” and impresses clients with his “ability to draw conclusions from complex data that is not evident to other experts”.

Contact Jonathan
Location Singapore, Sydney, Australia