Jonathan Humphrey


Global Elite Thought Leader - Arbitration 2021
Arbitration 2022
Australia 2021: Arbitration - Construction - Quantum and Delay - Financial Advisory and Valuation - Quantum of Damages
Construction 2021
Commercial Litigation 2021
Consulting Experts 2021: 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 Forensic Accounting & Commercial Damages, Quantum
Sectors Technology, Buildings, Transportation Infrastructure, Financial, Industrial & Manufacturing, Power & Utilities, Resources
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.

Jonathan Humphrey is recognised for his top-notch work assisting clients in high-value commercial and financial disputes, where he provides first-rate expert testimony.

WWL Experts – Construction – Quantum, Delay & Technical 2021

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.

He has lots of experience before tribunals, and great forensic expertise which was pivotal to our client’s case.

Contact Jonathan
Location Singapore, Sydney, Australia